This document summarizes a study on seismic dampers used to reduce vibrations in buildings during earthquakes. It discusses different types of damper systems, including passive, active, and hybrid/semi-active systems. Passive dampers like tuned mass dampers and viscous fluid dampers are commonly used to enhance seismic response by absorbing and dissipating energy. The document reviews various past studies on seismic dampers and damping devices, analyzing their effectiveness in reducing structural response through experimental testing and mathematical modeling. It focuses on damper technologies that can help make structures more earthquake resistant.
Detailed investigation on Seismic response of linear and nonlinear symmetric ...IRJET Journal
The document discusses seismic response of linear and nonlinear symmetric and asymmetric building systems. It investigates using passive linear viscous dampers and nonlinear viscous dampers placed in a 20-story asymmetric building. Response quantities like displacement, velocity and acceleration are calculated for bidirectional seismic excitations. The analysis aims to determine ideal damper parameters and their effectiveness in reducing lateral-torsional response compared to an uncontrolled building. It also examines optimal damper locations in the multi-story building.
Seismic Response Study and Evaluation of Vibration Control of High- Rise Stru...IRJET Journal
This document discusses different types of vibration dampers that can be used to reduce the seismic response of high-rise buildings, including viscous fluid dampers, viscoelastic dampers, friction dampers, magnetorheological (MR) dampers, and pendulum tuned mass dampers. It provides detailed descriptions of each type of damper, including their construction and vibration control mechanisms. The document also reviews several previous studies that have analyzed the effectiveness of these dampers at reducing displacement, shear, moment, and acceleration responses in high-rise buildings subjected to earthquakes.
Analysis of Moment Resisting Reinforced Concrete Frames for Seismic Response ...IRJET Journal
This document discusses the analysis of moment resisting reinforced concrete frames to evaluate the seismic response reduction factor with and without dampers. It first provides background on earthquakes and the need to reduce vibration in structures. It then describes the use of passive energy dissipating devices like viscous and viscoelastic dampers to absorb energy during earthquakes. The study aims to analyze the seismic behavior of a G+8 building model with and without these dampers using software. The results show that when dampers are applied at alternate floors, the maximum displacement is reduced by 42% in one direction and displacement limits specified in codes are not exceeded. Therefore, it can be concluded that dampers improve the seismic performance of structures against earthquakes by increasing stability
SEISMIC ANALYSIS OF HYBRID STRUCTURAL CONTROL SYSTEM IN RC BUILDINGIRJET Journal
The document discusses seismic analysis of a hybrid structural control system for RC buildings that combines lead rubber bearing (LRB) seismic isolation and fluid viscous dampers (FVD). Finite element models of RC buildings with heights of 60m, 105m, and 150m were created with the isolators located at the base or one-fifth of the building height. Time history analyses were performed under three earthquake records to compare the structural response parameters between the fixed-base building and various structural control configurations. The analyses aimed to investigate the effectiveness of combining LRB isolation with FVD energy dissipation in reducing seismic demands on high-rise buildings.
IRJET- Performance Analysis of High Rise RCC Frame Structure using Various Ty...IRJET Journal
The document discusses the performance analysis of a high-rise reinforced concrete frame structure using viscous and viscoelastic dampers. It describes modeling and analyzing a 40-story RCC building in ETABS software to study the effects of installing different types of dampers at various locations. Viscous and viscoelastic dampers are passive damping devices that dissipate a structure's vibration energy and help reduce displacements and accelerations, especially during earthquakes. The analysis aims to evaluate the effectiveness of these dampers in improving the serviceability and safety of tall buildings.
IRJET- A Review of Seismic Behaviour of Multi-Story Building using various En...IRJET Journal
This document reviews the seismic behavior of multi-story buildings using various energy dissipation systems. It discusses three main types of energy dissipation systems - mass dampers, viscous dampers, and lead rubber bearings. The document provides details on how each system works and examples of their use. It also summarizes several other research papers that have analyzed the effectiveness of adding horizontal dampers at different floor levels on multi-story buildings to improve seismic performance in terms of reducing displacement, base shear, and inter-story drift. The focus is on evaluating the performance of viscous dampers placed at the ground floor level of multi-story buildings with basements.
Seismic Response of Multi-Storied Buildings with Different Vibration Control ...IRJET Journal
This document reviews different passive vibration control techniques used in multi-story buildings to reduce seismic response, including base isolation, shear walls, and tunnel form construction. Base isolation involves installing flexible supports between the building and foundation to increase the natural period of vibration and reduce earthquake forces. Shear walls are reinforced concrete walls that provide stiffness and strength to resist lateral loads. Tunnel form construction involves simultaneously casting thin concrete walls and slabs in a single daily cycle for fast, economical construction of seismically resistant buildings.
A Review on Behavior of Connected Tall Buildings with Lateral Load Resisting ...IRJET Journal
This document summarizes research on the behavior of connected tall buildings with lateral load resisting systems and dampers under seismic load. It reviews several studies that analyzed models of linked tall structures with shear walls, bracing, and linear viscous dampers. The models examined buildings with various sky bridge locations and damper placements subjected to response spectrum analysis, time history analysis, and wind analysis. The research found that buildings coupled with sky bridges and dampers were more effective at reducing seismic responses like story shear, displacement, acceleration, and drift compared to buildings without these connections.
Detailed investigation on Seismic response of linear and nonlinear symmetric ...IRJET Journal
The document discusses seismic response of linear and nonlinear symmetric and asymmetric building systems. It investigates using passive linear viscous dampers and nonlinear viscous dampers placed in a 20-story asymmetric building. Response quantities like displacement, velocity and acceleration are calculated for bidirectional seismic excitations. The analysis aims to determine ideal damper parameters and their effectiveness in reducing lateral-torsional response compared to an uncontrolled building. It also examines optimal damper locations in the multi-story building.
Seismic Response Study and Evaluation of Vibration Control of High- Rise Stru...IRJET Journal
This document discusses different types of vibration dampers that can be used to reduce the seismic response of high-rise buildings, including viscous fluid dampers, viscoelastic dampers, friction dampers, magnetorheological (MR) dampers, and pendulum tuned mass dampers. It provides detailed descriptions of each type of damper, including their construction and vibration control mechanisms. The document also reviews several previous studies that have analyzed the effectiveness of these dampers at reducing displacement, shear, moment, and acceleration responses in high-rise buildings subjected to earthquakes.
Analysis of Moment Resisting Reinforced Concrete Frames for Seismic Response ...IRJET Journal
This document discusses the analysis of moment resisting reinforced concrete frames to evaluate the seismic response reduction factor with and without dampers. It first provides background on earthquakes and the need to reduce vibration in structures. It then describes the use of passive energy dissipating devices like viscous and viscoelastic dampers to absorb energy during earthquakes. The study aims to analyze the seismic behavior of a G+8 building model with and without these dampers using software. The results show that when dampers are applied at alternate floors, the maximum displacement is reduced by 42% in one direction and displacement limits specified in codes are not exceeded. Therefore, it can be concluded that dampers improve the seismic performance of structures against earthquakes by increasing stability
SEISMIC ANALYSIS OF HYBRID STRUCTURAL CONTROL SYSTEM IN RC BUILDINGIRJET Journal
The document discusses seismic analysis of a hybrid structural control system for RC buildings that combines lead rubber bearing (LRB) seismic isolation and fluid viscous dampers (FVD). Finite element models of RC buildings with heights of 60m, 105m, and 150m were created with the isolators located at the base or one-fifth of the building height. Time history analyses were performed under three earthquake records to compare the structural response parameters between the fixed-base building and various structural control configurations. The analyses aimed to investigate the effectiveness of combining LRB isolation with FVD energy dissipation in reducing seismic demands on high-rise buildings.
IRJET- Performance Analysis of High Rise RCC Frame Structure using Various Ty...IRJET Journal
The document discusses the performance analysis of a high-rise reinforced concrete frame structure using viscous and viscoelastic dampers. It describes modeling and analyzing a 40-story RCC building in ETABS software to study the effects of installing different types of dampers at various locations. Viscous and viscoelastic dampers are passive damping devices that dissipate a structure's vibration energy and help reduce displacements and accelerations, especially during earthquakes. The analysis aims to evaluate the effectiveness of these dampers in improving the serviceability and safety of tall buildings.
IRJET- A Review of Seismic Behaviour of Multi-Story Building using various En...IRJET Journal
This document reviews the seismic behavior of multi-story buildings using various energy dissipation systems. It discusses three main types of energy dissipation systems - mass dampers, viscous dampers, and lead rubber bearings. The document provides details on how each system works and examples of their use. It also summarizes several other research papers that have analyzed the effectiveness of adding horizontal dampers at different floor levels on multi-story buildings to improve seismic performance in terms of reducing displacement, base shear, and inter-story drift. The focus is on evaluating the performance of viscous dampers placed at the ground floor level of multi-story buildings with basements.
Seismic Response of Multi-Storied Buildings with Different Vibration Control ...IRJET Journal
This document reviews different passive vibration control techniques used in multi-story buildings to reduce seismic response, including base isolation, shear walls, and tunnel form construction. Base isolation involves installing flexible supports between the building and foundation to increase the natural period of vibration and reduce earthquake forces. Shear walls are reinforced concrete walls that provide stiffness and strength to resist lateral loads. Tunnel form construction involves simultaneously casting thin concrete walls and slabs in a single daily cycle for fast, economical construction of seismically resistant buildings.
A Review on Behavior of Connected Tall Buildings with Lateral Load Resisting ...IRJET Journal
This document summarizes research on the behavior of connected tall buildings with lateral load resisting systems and dampers under seismic load. It reviews several studies that analyzed models of linked tall structures with shear walls, bracing, and linear viscous dampers. The models examined buildings with various sky bridge locations and damper placements subjected to response spectrum analysis, time history analysis, and wind analysis. The research found that buildings coupled with sky bridges and dampers were more effective at reducing seismic responses like story shear, displacement, acceleration, and drift compared to buildings without these connections.
IRJET- Base Isolation and Damping Sytems for Earthquake ResistanceIRJET Journal
This document discusses various damping systems and base isolation techniques that can be used to improve the earthquake resistance of buildings. It summarizes the types of damping systems, including viscous dampers, tuned mass dampers, base isolation, active damping and semi-active damping. The document compares the performance of buildings with base isolation and damping systems to fixed base buildings through analytical models. It finds that base isolated buildings and those with damping systems experience significantly reduced displacements compared to fixed base buildings. Finally, the document discusses the use of viscous damping systems specifically for high-rise buildings and their advantages over other techniques.
Strengthening of R.C Framed Structure Using Energy Dissipating Devicespaperpublications3
Abstract: The Dampers which is added to the building scheme without any interruption to the present constituent of the building. In past days retrofitting structures are use full in the construction field however a good understanding of restraints involvement to increase the structure capacities and decreasing the seismic demand in specifically to the design process. In this work consider the energy dissipating devices for seismic strengthening of 5 stories concrete structure in this study involves viscous damping devices of V Type and Inverted V Type dampers with different effective stiffness, to prevent building damage or collapse in major earthquake.
IRJET- A Review on Seismic Analysis of Buildings using Passive Energy Dis...IRJET Journal
The document summarizes research on using passive energy dissipating devices to improve the seismic performance of buildings. It reviews literature on three main types of passive dampers: fluid viscous dampers, viscoelastic dampers, and friction dampers. Studies show that incorporating these dampers can significantly reduce inter-story drifts, floor accelerations, and shear forces in buildings during earthquakes by dissipating seismic energy. Fluid viscous dampers and friction dampers in particular have been found to improve structural response and reduce damage when optimized for location and properties in the building design.
IRJET- Structural Analysis of Seismic Friction DampersIRJET Journal
The document discusses the structural analysis of seismic friction dampers. It summarizes that friction dampers are installed in buildings in a way that their moving parts slide during earthquakes to dissipate seismic energy. Two building models are analyzed using pushover analysis: a rectangular building with rectangular columns and dampers, and a rectangular building without dampers. The results show that the building with dampers experiences lower lateral displacements, base shear, and story drift compared to the building without dampers under earthquake loading. Friction dampers thus help improve a building's seismic performance by reducing its response.
Comparative Study on Seismic Behavior of Different Shape of RC Structure with...IRJET Journal
This document reviews several papers on using different types of seismic dampers, including viscous, visco-elastic, friction, tuned mass, and yielding dampers, to improve the seismic performance of reinforced concrete (RC) structures. It finds that installing dampers can significantly reduce displacement, inter-story drift, column shear forces, and acceleration responses in RC buildings during earthquakes compared to buildings without dampers. Viscous dampers generally provide better displacement control than other damper types. The optimal placement of dampers is on lower floors, as this minimizes displacement and drift the most.
IRJET- Performance Study of High Rise Building with Bracing and Diagrid Struc...IRJET Journal
This document presents a study on the performance of high-rise buildings with bracing and diagrid structures under lateral loads. It analyzes a 30-story building model with different structural configurations - a regular frame, diagrid system, and bracing system - using the ETABS software. The study finds that the diagrid structure performs best in terms of minimizing storey displacement, drift, and increasing frequency compared to the other models. It concludes that the diagrid structure is the stiffest and most effective at resisting lateral loads like earthquakes. Bracing systems are also better than bare frames at increasing stability, but diagrid structures provide the best performance overall.
IRJET- Analysis of CR TOWER G+6 Buildings Having Top Rectangular Water Ta...IRJET Journal
This document analyzes the use of a tuned liquid damper (TLD) in a G+6 building with a top rectangular water tank in Ambikapur, Chhattisgarh, India to control vibrations. The building is analyzed under various dynamic loads. A TLD uses liquid sloshing to dampen structural oscillations. Analysis shows the TLD can effectively reduce responses to half of original values. Properly designed TLDs with optimal tuning ratio, depth ratio, and mass ratio are effective at reducing structural response to earthquakes and winds. The top water tank in this building acts as a TLD. Nonlinear models are used to analyze the liquid-structure interaction.
IRJET- Seismic Performance Evaluation of RC Building Connected with and witho...IRJET Journal
This document summarizes a research paper that evaluates the seismic performance of reinforced concrete buildings connected with and without X-braced friction dampers. It first provides background on seismic retrofitting techniques, including active and passive damping systems. It then describes the methodology, which involves modeling 12, 18, and 24-story buildings with conventional bracing and friction dampers in ETABS software. Linear static and dynamic analyses are performed and results are compared to evaluate the models.
IRJET- A Review of Seismic Analysis of Different Shape of RC Building by usin...IRJET Journal
This document reviews research on seismic analysis of reinforced concrete (RC) buildings using viscous dampers. It summarizes 6 research papers that analyzed the effects of viscous dampers on RC buildings. The main findings are:
1) Viscous dampers reduce displacement, drift, acceleration, and velocity responses in RC buildings compared to buildings without dampers. Dampers placed at lower floors provide better seismic performance.
2) Dampers can reduce displacement by up to 85% and drift by up to 78% compared to bare frames without dampers.
3) Dampers placed at lower floors are most effective at reducing displacement, drift, and increasing the time period of the structure compared to damp
IRJET- Comparative Analysis of Effects of Base Isolator & Fluid Viscous Dampe...IRJET Journal
This document presents a comparative analysis of the effects of base isolators and fluid viscous dampers on the seismic response of reinforced concrete structures. It describes base isolators and fluid viscous dampers as passive seismic control techniques that help reduce structural response compared to fixed-base buildings. The objectives are to develop simplified models of a multi-story building with each seismic control technique and compare their responses through time history analysis under earthquake loads. Results show that base isolators generally provide better vibration control than fluid viscous dampers in terms of reducing story displacements, drifts, and other seismic demands.
STRUCTURAL RESPONSE CONTROL OF RCC MOMENT RESISTING FRAME USING FLUID VISCOUS...IAEME Publication
1. The document discusses using fluid viscous dampers to control the structural response of reinforced concrete moment frames subjected to earthquakes.
2. A non-linear time history analysis was performed on a 12-story reinforced concrete moment frame building model with and without supplemental fluid viscous dampers.
3. The results of the time history analysis showed that the model with dampers had lower maximum story displacements and drifts compared to the model without dampers, demonstrating the effectiveness of fluid viscous dampers in improving the structural response.
IRJET- A Review Paper on Comparative Study of Fixed Base, Base Isolation & Da...IRJET Journal
The document discusses seismic protection methods for reinforced concrete (RC) buildings, including fixed base, base isolation, and damper systems. It provides an overview of each system and compares their effectiveness. Base isolation is found to be most effective for low to medium rise buildings, as it reduces floor acceleration, inter-story drift, and damage. Damper systems work best for high rise buildings, using devices like fluid viscous dampers to dissipate seismic energy. The analysis of research papers showed that both base isolation and dampers can increase base shear, period, and damping ratio while reducing displacement and overturning moment compared to fixed base structures.
SEISMIC RESPONSE STUDY OF MULTI-STORIED REINFORCED CONCRETE BUILDING WITH FLU...IRJET Journal
This document summarizes a study that analyzed the seismic response of multi-story reinforced concrete buildings with the addition of fluid viscous dampers. The study used ETABS software to model buildings with and without dampers and subjected them to modal, time history and pushover analyses. It was found that buildings with fluid viscous dampers experienced reduced time periods of up to 90% and reduced base shear of up to 70% compared to buildings without dampers. Maximum story displacements were also reduced with the addition of fluid viscous dampers.
IRJET- Design of a New Passive Energy Dissipation System for Earthquake R...IRJET Journal
This document discusses the design of a new passive energy dissipation system for earthquake-resistant structures. It begins with an abstract that introduces passive control systems as an effective and inexpensive way to mitigate earthquake risks. It then discusses different types of passive energy dissipation systems, including metallic dampers and friction dampers. The document provides details on hysteretic systems that dissipate energy independently of the loading rate, such as metallic and friction dampers. It also covers viscoelastic systems that dissipate energy in a rate-dependent manner, such as viscoelastic solid and fluid dampers. The goal is to develop innovative earthquake-resistant systems to improve seismic performance while keeping costs reasonable.
Regular High Rise Building Vibration Control by Tuned Mass Damper: A Performa...IRJET Journal
1) The document discusses using a tuned mass damper (TMD) to control vibrations in high-rise buildings caused by earthquakes and wind loads. A TMD works like a pendulum to counteract vibrations in the structure.
2) A numerical simulation was conducted of a high-rise building model with and without a TMD under different earthquake loads. The results showed that a TMD could significantly decrease the displacement responses of the structure in multiple directions.
3) TMDs work by having a secondary mass system tuned to the natural frequency of the structural vibration. When the structure vibrates, the TMD vibrates out of phase to transfer excess energy, reducing the response of the main structure
Analysis and Design of RCC Building Retrofitted by Accordion Metallic DamperIRJET Journal
This document discusses retrofitting a reinforced concrete building using accordion metallic dampers to improve seismic performance. It provides background on seismic retrofitting, types of supplemental damping systems (passive, active, semi-active), and energy dissipation devices like yielding metallic dampers, viscoelastic dampers, viscous dampers, and friction dampers. Specifically, it analyzes retrofitting a building with accordion metallic dampers, which have been shown to effectively absorb impact energy. The building is analyzed using time history and pushover analysis in software, both with and without the dampers. Results show the dampers significantly reduce response quantities like inter-story drift, displacement, bending moment, and shear force, demonstrating their effectiveness in dissip
IRJET- Effect of Viscous Dampers on Response Reduction Factor for RCC Frame u...IRJET Journal
The document discusses the effect of viscous dampers on the response reduction factor (R) of reinforced concrete frames. It analyzes reinforced concrete buildings of 4, 8, 12, and 16 stories both with and without viscous dampers, located in different configurations, using ETABS software. The results show that the response reduction factor (R) is higher for buildings installed with dampers compared to buildings without dampers, indicating that viscous dampers improve the seismic performance of reinforced concrete buildings by increasing their ability to dissipate energy through inelastic behavior.
Studies on Effect of Friction Dampers on the Seismic Performance of RC Multis...IRJET Journal
This document summarizes a study on the effect of friction dampers on the seismic performance of reinforced concrete multi-storey buildings. Finite element models of G+3 and G+7 buildings with and without friction dampers were analyzed using static and dynamic seismic analysis methods. Results show that buildings with friction dampers experienced reduced base shear, lateral displacement, and inter-storey drift compared to identical buildings without dampers. The dampers effectively absorbed and dissipated seismic energy, improving the seismic response and reducing structural demand on the buildings.
VIBRATION CONTROL OF CIVIL STRUCTUTRES USING PIEZOCERAMIC SMART MATERIALS
The document discusses using piezoceramic smart materials to control vibrations in civil structures. It provides background on structural vibrations and introduces piezoceramic materials as effective and economical actuators and sensors for vibration control. Various experiments are discussed applying piezoceramics to control vibrations in different civil structure types like beams, trusses, frames, bridges. While piezoceramics have limitations like small displacements, the benefits for vibration control are significant and more development is expected to further enable their use in civil engineering applications.
IRJET- Seismic Resistant Structure by using Tuned Mass DamperIRJET Journal
This document discusses using tuned mass dampers (TMDs) to improve the seismic resistance of structures. It first provides background on TMDs and how they work to counteract vibrations by being tuned to the fundamental frequency of the structure. The document then reviews several past studies that analyzed the effectiveness of TMDs at reducing the accelerations of buildings under stochastic seismic loads and earthquake records. It presents research showing that multiple TMDs can provide better vibration reduction than a single TMD. Finally, the document summarizes that TMDs have been shown to effectively reduce vibrations and improve structural safety, especially when the damping ratio of the structure is low.
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
More Related Content
Similar to Study About Seismic Device Dampers: A review
IRJET- Base Isolation and Damping Sytems for Earthquake ResistanceIRJET Journal
This document discusses various damping systems and base isolation techniques that can be used to improve the earthquake resistance of buildings. It summarizes the types of damping systems, including viscous dampers, tuned mass dampers, base isolation, active damping and semi-active damping. The document compares the performance of buildings with base isolation and damping systems to fixed base buildings through analytical models. It finds that base isolated buildings and those with damping systems experience significantly reduced displacements compared to fixed base buildings. Finally, the document discusses the use of viscous damping systems specifically for high-rise buildings and their advantages over other techniques.
Strengthening of R.C Framed Structure Using Energy Dissipating Devicespaperpublications3
Abstract: The Dampers which is added to the building scheme without any interruption to the present constituent of the building. In past days retrofitting structures are use full in the construction field however a good understanding of restraints involvement to increase the structure capacities and decreasing the seismic demand in specifically to the design process. In this work consider the energy dissipating devices for seismic strengthening of 5 stories concrete structure in this study involves viscous damping devices of V Type and Inverted V Type dampers with different effective stiffness, to prevent building damage or collapse in major earthquake.
IRJET- A Review on Seismic Analysis of Buildings using Passive Energy Dis...IRJET Journal
The document summarizes research on using passive energy dissipating devices to improve the seismic performance of buildings. It reviews literature on three main types of passive dampers: fluid viscous dampers, viscoelastic dampers, and friction dampers. Studies show that incorporating these dampers can significantly reduce inter-story drifts, floor accelerations, and shear forces in buildings during earthquakes by dissipating seismic energy. Fluid viscous dampers and friction dampers in particular have been found to improve structural response and reduce damage when optimized for location and properties in the building design.
IRJET- Structural Analysis of Seismic Friction DampersIRJET Journal
The document discusses the structural analysis of seismic friction dampers. It summarizes that friction dampers are installed in buildings in a way that their moving parts slide during earthquakes to dissipate seismic energy. Two building models are analyzed using pushover analysis: a rectangular building with rectangular columns and dampers, and a rectangular building without dampers. The results show that the building with dampers experiences lower lateral displacements, base shear, and story drift compared to the building without dampers under earthquake loading. Friction dampers thus help improve a building's seismic performance by reducing its response.
Comparative Study on Seismic Behavior of Different Shape of RC Structure with...IRJET Journal
This document reviews several papers on using different types of seismic dampers, including viscous, visco-elastic, friction, tuned mass, and yielding dampers, to improve the seismic performance of reinforced concrete (RC) structures. It finds that installing dampers can significantly reduce displacement, inter-story drift, column shear forces, and acceleration responses in RC buildings during earthquakes compared to buildings without dampers. Viscous dampers generally provide better displacement control than other damper types. The optimal placement of dampers is on lower floors, as this minimizes displacement and drift the most.
IRJET- Performance Study of High Rise Building with Bracing and Diagrid Struc...IRJET Journal
This document presents a study on the performance of high-rise buildings with bracing and diagrid structures under lateral loads. It analyzes a 30-story building model with different structural configurations - a regular frame, diagrid system, and bracing system - using the ETABS software. The study finds that the diagrid structure performs best in terms of minimizing storey displacement, drift, and increasing frequency compared to the other models. It concludes that the diagrid structure is the stiffest and most effective at resisting lateral loads like earthquakes. Bracing systems are also better than bare frames at increasing stability, but diagrid structures provide the best performance overall.
IRJET- Analysis of CR TOWER G+6 Buildings Having Top Rectangular Water Ta...IRJET Journal
This document analyzes the use of a tuned liquid damper (TLD) in a G+6 building with a top rectangular water tank in Ambikapur, Chhattisgarh, India to control vibrations. The building is analyzed under various dynamic loads. A TLD uses liquid sloshing to dampen structural oscillations. Analysis shows the TLD can effectively reduce responses to half of original values. Properly designed TLDs with optimal tuning ratio, depth ratio, and mass ratio are effective at reducing structural response to earthquakes and winds. The top water tank in this building acts as a TLD. Nonlinear models are used to analyze the liquid-structure interaction.
IRJET- Seismic Performance Evaluation of RC Building Connected with and witho...IRJET Journal
This document summarizes a research paper that evaluates the seismic performance of reinforced concrete buildings connected with and without X-braced friction dampers. It first provides background on seismic retrofitting techniques, including active and passive damping systems. It then describes the methodology, which involves modeling 12, 18, and 24-story buildings with conventional bracing and friction dampers in ETABS software. Linear static and dynamic analyses are performed and results are compared to evaluate the models.
IRJET- A Review of Seismic Analysis of Different Shape of RC Building by usin...IRJET Journal
This document reviews research on seismic analysis of reinforced concrete (RC) buildings using viscous dampers. It summarizes 6 research papers that analyzed the effects of viscous dampers on RC buildings. The main findings are:
1) Viscous dampers reduce displacement, drift, acceleration, and velocity responses in RC buildings compared to buildings without dampers. Dampers placed at lower floors provide better seismic performance.
2) Dampers can reduce displacement by up to 85% and drift by up to 78% compared to bare frames without dampers.
3) Dampers placed at lower floors are most effective at reducing displacement, drift, and increasing the time period of the structure compared to damp
IRJET- Comparative Analysis of Effects of Base Isolator & Fluid Viscous Dampe...IRJET Journal
This document presents a comparative analysis of the effects of base isolators and fluid viscous dampers on the seismic response of reinforced concrete structures. It describes base isolators and fluid viscous dampers as passive seismic control techniques that help reduce structural response compared to fixed-base buildings. The objectives are to develop simplified models of a multi-story building with each seismic control technique and compare their responses through time history analysis under earthquake loads. Results show that base isolators generally provide better vibration control than fluid viscous dampers in terms of reducing story displacements, drifts, and other seismic demands.
STRUCTURAL RESPONSE CONTROL OF RCC MOMENT RESISTING FRAME USING FLUID VISCOUS...IAEME Publication
1. The document discusses using fluid viscous dampers to control the structural response of reinforced concrete moment frames subjected to earthquakes.
2. A non-linear time history analysis was performed on a 12-story reinforced concrete moment frame building model with and without supplemental fluid viscous dampers.
3. The results of the time history analysis showed that the model with dampers had lower maximum story displacements and drifts compared to the model without dampers, demonstrating the effectiveness of fluid viscous dampers in improving the structural response.
IRJET- A Review Paper on Comparative Study of Fixed Base, Base Isolation & Da...IRJET Journal
The document discusses seismic protection methods for reinforced concrete (RC) buildings, including fixed base, base isolation, and damper systems. It provides an overview of each system and compares their effectiveness. Base isolation is found to be most effective for low to medium rise buildings, as it reduces floor acceleration, inter-story drift, and damage. Damper systems work best for high rise buildings, using devices like fluid viscous dampers to dissipate seismic energy. The analysis of research papers showed that both base isolation and dampers can increase base shear, period, and damping ratio while reducing displacement and overturning moment compared to fixed base structures.
SEISMIC RESPONSE STUDY OF MULTI-STORIED REINFORCED CONCRETE BUILDING WITH FLU...IRJET Journal
This document summarizes a study that analyzed the seismic response of multi-story reinforced concrete buildings with the addition of fluid viscous dampers. The study used ETABS software to model buildings with and without dampers and subjected them to modal, time history and pushover analyses. It was found that buildings with fluid viscous dampers experienced reduced time periods of up to 90% and reduced base shear of up to 70% compared to buildings without dampers. Maximum story displacements were also reduced with the addition of fluid viscous dampers.
IRJET- Design of a New Passive Energy Dissipation System for Earthquake R...IRJET Journal
This document discusses the design of a new passive energy dissipation system for earthquake-resistant structures. It begins with an abstract that introduces passive control systems as an effective and inexpensive way to mitigate earthquake risks. It then discusses different types of passive energy dissipation systems, including metallic dampers and friction dampers. The document provides details on hysteretic systems that dissipate energy independently of the loading rate, such as metallic and friction dampers. It also covers viscoelastic systems that dissipate energy in a rate-dependent manner, such as viscoelastic solid and fluid dampers. The goal is to develop innovative earthquake-resistant systems to improve seismic performance while keeping costs reasonable.
Regular High Rise Building Vibration Control by Tuned Mass Damper: A Performa...IRJET Journal
1) The document discusses using a tuned mass damper (TMD) to control vibrations in high-rise buildings caused by earthquakes and wind loads. A TMD works like a pendulum to counteract vibrations in the structure.
2) A numerical simulation was conducted of a high-rise building model with and without a TMD under different earthquake loads. The results showed that a TMD could significantly decrease the displacement responses of the structure in multiple directions.
3) TMDs work by having a secondary mass system tuned to the natural frequency of the structural vibration. When the structure vibrates, the TMD vibrates out of phase to transfer excess energy, reducing the response of the main structure
Analysis and Design of RCC Building Retrofitted by Accordion Metallic DamperIRJET Journal
This document discusses retrofitting a reinforced concrete building using accordion metallic dampers to improve seismic performance. It provides background on seismic retrofitting, types of supplemental damping systems (passive, active, semi-active), and energy dissipation devices like yielding metallic dampers, viscoelastic dampers, viscous dampers, and friction dampers. Specifically, it analyzes retrofitting a building with accordion metallic dampers, which have been shown to effectively absorb impact energy. The building is analyzed using time history and pushover analysis in software, both with and without the dampers. Results show the dampers significantly reduce response quantities like inter-story drift, displacement, bending moment, and shear force, demonstrating their effectiveness in dissip
IRJET- Effect of Viscous Dampers on Response Reduction Factor for RCC Frame u...IRJET Journal
The document discusses the effect of viscous dampers on the response reduction factor (R) of reinforced concrete frames. It analyzes reinforced concrete buildings of 4, 8, 12, and 16 stories both with and without viscous dampers, located in different configurations, using ETABS software. The results show that the response reduction factor (R) is higher for buildings installed with dampers compared to buildings without dampers, indicating that viscous dampers improve the seismic performance of reinforced concrete buildings by increasing their ability to dissipate energy through inelastic behavior.
Studies on Effect of Friction Dampers on the Seismic Performance of RC Multis...IRJET Journal
This document summarizes a study on the effect of friction dampers on the seismic performance of reinforced concrete multi-storey buildings. Finite element models of G+3 and G+7 buildings with and without friction dampers were analyzed using static and dynamic seismic analysis methods. Results show that buildings with friction dampers experienced reduced base shear, lateral displacement, and inter-storey drift compared to identical buildings without dampers. The dampers effectively absorbed and dissipated seismic energy, improving the seismic response and reducing structural demand on the buildings.
VIBRATION CONTROL OF CIVIL STRUCTUTRES USING PIEZOCERAMIC SMART MATERIALS
The document discusses using piezoceramic smart materials to control vibrations in civil structures. It provides background on structural vibrations and introduces piezoceramic materials as effective and economical actuators and sensors for vibration control. Various experiments are discussed applying piezoceramics to control vibrations in different civil structure types like beams, trusses, frames, bridges. While piezoceramics have limitations like small displacements, the benefits for vibration control are significant and more development is expected to further enable their use in civil engineering applications.
IRJET- Seismic Resistant Structure by using Tuned Mass DamperIRJET Journal
This document discusses using tuned mass dampers (TMDs) to improve the seismic resistance of structures. It first provides background on TMDs and how they work to counteract vibrations by being tuned to the fundamental frequency of the structure. The document then reviews several past studies that analyzed the effectiveness of TMDs at reducing the accelerations of buildings under stochastic seismic loads and earthquake records. It presents research showing that multiple TMDs can provide better vibration reduction than a single TMD. Finally, the document summarizes that TMDs have been shown to effectively reduce vibrations and improve structural safety, especially when the damping ratio of the structure is low.
Similar to Study About Seismic Device Dampers: A review (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMSIJNSA Journal
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.