Dexter : Design, Fabrication, Testing & Validation of a Portable Tabletop Solid Rocket Motor - Static Performance Thrust Stand with a Wirelessly Controlled Data Acquisition System
This document describes the design, fabrication, testing, and validation of a portable tabletop solid rocket motor static performance thrust stand with a wirelessly controlled data acquisition system called Dexter. It was developed to provide research opportunities for students in aerospace engineering. The development included two phases: 1) design and fabrication of the thrust stand, solid rocket motor, and wireless DAQ system and 2) testing and validating the system by measuring the thrust, mass flow rate, and exhaust velocities of solid rocket motors with varying fuel-oxidizer ratios. The testing results were analyzed using MATLAB and compared to analytical calculations to validate the project within acceptable error margins.
Design and Development of a Quadrotor – A Didactic ApproachIRJET Journal
This document describes the design and development of a quadrotor drone. The students designed the mechanical structure using CAD software and selected aluminum as the frame material. They calculated the required thrust from the motors and selected 1000KV rating brushless DC motors. An off-the-shelf flight control board with gyroscope and accelerometer provides autonomous leveling through PI control. The fully assembled quadrotor was able to achieve stable flight upon tuning the proportional and integral gain values for roll, pitch, yaw and throttle control. The low-cost design approach makes such quadrotor systems a viable alternative for various applications.
IRJET - GVT, Updating and Correlation on Scale Aircraft ModelIRJET Journal
This document discusses the process and importance of conducting a Ground Vibration Test (GVT) on an aircraft model. A GVT determines the natural frequencies, mode shapes, and damping of an aircraft structure through experimental testing. The results are used to validate analytical models of the aircraft, which are important for predicting flutter and ensuring flight safety. The document outlines creating a CAD model of the aircraft, manufacturing scale parts, assembling them, performing the GVT with hammers and shakers, extracting modal parameters, and correlating experimental results with finite element analysis models. Good correlation between tests and models is needed to certify the aircraft for further testing like ground runs and in-flight flutter investigations.
A journal on “Refurbishment of Internal combustion engine to an electric vehi...IRJET Journal
This document summarizes a journal article about refurbishing an internal combustion engine scooter into an electric vehicle. The researchers designed a new chassis to accommodate an electric motor and battery components. They used simulation software to analyze the chassis design and ensure it could withstand stresses. The team selected a brushless DC motor, lead-acid batteries, and motor controller. Dynamic calculations were performed to determine the required motor power, battery capacity, driving range, and charging time. Simulations validated that the converted electric scooter could reach speeds of 35 km/h and drive ranges of 35-45 km on a single charge. Some challenges included making structural changes to the chassis and improving the battery and motor specifications.
Simulation of electric bike using Scilab XcosIRJET Journal
This document presents a simulation of an electric bike using Scilab Xcos software. The simulation models the major components of the electric bike, including the chassis dynamics, transmission, electric motor, and battery. Each component is modeled using Model-Based Design methods in Scilab. The simulation is run using standard drive cycles to evaluate the performance and energy consumption of the electric bike. Charts of vehicle speed, motor speed/torque, battery current/power and state of charge over time are presented. The results show the battery state of charge decreases to around 15% at the end of the simulated drive cycle. The document concludes the simulation can help in the selection and sizing of electric bike components without testing real prototypes.
Performance enhancement through design and analysis of All Terrain VehicleIRJET Journal
This document summarizes the design of an all-terrain vehicle (ATV) by an undergraduate student. It describes the design of the vehicle's major subsystems including the chassis/roll cage, suspension, steering, brakes, and powertrain. For each subsystem, the design objectives and considerations are provided, along with technical specifications. The document also discusses the use of computer-aided engineering (CAE) simulations to analyze components and validate the design. It aims to develop a lightweight yet robust and high-performance ATV.
IRJET- Designing and Analysis of Elements of a Multi-Storey BuildingIRJET Journal
1. The document describes designing and analyzing elements of a multi-storey building using three structural design software: STAAD.PRO, ETABS, and SAP.
2. The objective is to model and analyze a 6-storey building considering loads like dead, live, wind and seismic loads per Indian standards and compare results.
3. The analysis includes load calculation, modeling the building in the three software, and comparing results for time taken, accuracy, flexibility and quantities of concrete required. ETABS is found to be fastest while all three software give similar results.
1) The document presents the design and analysis of a brake component for a vehicle. It aims to optimize the design to reduce weight while maintaining strength.
2) The brake disc is modeled in SOLIDWORKS and analyzed in ANSYS for static and thermal loads. Calculations are presented for deceleration, stopping time, weight distribution, and required braking forces.
3) A hexagonal lattice structure is used to optimize the CAD model of the brake pedal to reduce weight, inspired by honeycomb structures. Static structural analysis is performed and stresses are evaluated.
Modelling & Thermal analysis of pulse jet engine using CFDIRJET Journal
This document summarizes a study that used computational fluid dynamics (CFD) to analyze the combustion characteristics of a pulse jet engine. The study modeled a pulse jet engine design using CAD software and then conducted a CFD analysis using two different combustion models: an eddy dissipation model and a finite rate chemistry model. The results showed that the eddy dissipation model generated higher thrust than the finite rate chemistry model. Specifically, the eddy dissipation model produced higher exit pressures and velocities. The study concluded the proper selection of combustion model is important for accurately evaluating performance metrics like thrust generated from a pulse jet engine.
Design and Development of a Quadrotor – A Didactic ApproachIRJET Journal
This document describes the design and development of a quadrotor drone. The students designed the mechanical structure using CAD software and selected aluminum as the frame material. They calculated the required thrust from the motors and selected 1000KV rating brushless DC motors. An off-the-shelf flight control board with gyroscope and accelerometer provides autonomous leveling through PI control. The fully assembled quadrotor was able to achieve stable flight upon tuning the proportional and integral gain values for roll, pitch, yaw and throttle control. The low-cost design approach makes such quadrotor systems a viable alternative for various applications.
IRJET - GVT, Updating and Correlation on Scale Aircraft ModelIRJET Journal
This document discusses the process and importance of conducting a Ground Vibration Test (GVT) on an aircraft model. A GVT determines the natural frequencies, mode shapes, and damping of an aircraft structure through experimental testing. The results are used to validate analytical models of the aircraft, which are important for predicting flutter and ensuring flight safety. The document outlines creating a CAD model of the aircraft, manufacturing scale parts, assembling them, performing the GVT with hammers and shakers, extracting modal parameters, and correlating experimental results with finite element analysis models. Good correlation between tests and models is needed to certify the aircraft for further testing like ground runs and in-flight flutter investigations.
A journal on “Refurbishment of Internal combustion engine to an electric vehi...IRJET Journal
This document summarizes a journal article about refurbishing an internal combustion engine scooter into an electric vehicle. The researchers designed a new chassis to accommodate an electric motor and battery components. They used simulation software to analyze the chassis design and ensure it could withstand stresses. The team selected a brushless DC motor, lead-acid batteries, and motor controller. Dynamic calculations were performed to determine the required motor power, battery capacity, driving range, and charging time. Simulations validated that the converted electric scooter could reach speeds of 35 km/h and drive ranges of 35-45 km on a single charge. Some challenges included making structural changes to the chassis and improving the battery and motor specifications.
Simulation of electric bike using Scilab XcosIRJET Journal
This document presents a simulation of an electric bike using Scilab Xcos software. The simulation models the major components of the electric bike, including the chassis dynamics, transmission, electric motor, and battery. Each component is modeled using Model-Based Design methods in Scilab. The simulation is run using standard drive cycles to evaluate the performance and energy consumption of the electric bike. Charts of vehicle speed, motor speed/torque, battery current/power and state of charge over time are presented. The results show the battery state of charge decreases to around 15% at the end of the simulated drive cycle. The document concludes the simulation can help in the selection and sizing of electric bike components without testing real prototypes.
Performance enhancement through design and analysis of All Terrain VehicleIRJET Journal
This document summarizes the design of an all-terrain vehicle (ATV) by an undergraduate student. It describes the design of the vehicle's major subsystems including the chassis/roll cage, suspension, steering, brakes, and powertrain. For each subsystem, the design objectives and considerations are provided, along with technical specifications. The document also discusses the use of computer-aided engineering (CAE) simulations to analyze components and validate the design. It aims to develop a lightweight yet robust and high-performance ATV.
IRJET- Designing and Analysis of Elements of a Multi-Storey BuildingIRJET Journal
1. The document describes designing and analyzing elements of a multi-storey building using three structural design software: STAAD.PRO, ETABS, and SAP.
2. The objective is to model and analyze a 6-storey building considering loads like dead, live, wind and seismic loads per Indian standards and compare results.
3. The analysis includes load calculation, modeling the building in the three software, and comparing results for time taken, accuracy, flexibility and quantities of concrete required. ETABS is found to be fastest while all three software give similar results.
1) The document presents the design and analysis of a brake component for a vehicle. It aims to optimize the design to reduce weight while maintaining strength.
2) The brake disc is modeled in SOLIDWORKS and analyzed in ANSYS for static and thermal loads. Calculations are presented for deceleration, stopping time, weight distribution, and required braking forces.
3) A hexagonal lattice structure is used to optimize the CAD model of the brake pedal to reduce weight, inspired by honeycomb structures. Static structural analysis is performed and stresses are evaluated.
Modelling & Thermal analysis of pulse jet engine using CFDIRJET Journal
This document summarizes a study that used computational fluid dynamics (CFD) to analyze the combustion characteristics of a pulse jet engine. The study modeled a pulse jet engine design using CAD software and then conducted a CFD analysis using two different combustion models: an eddy dissipation model and a finite rate chemistry model. The results showed that the eddy dissipation model generated higher thrust than the finite rate chemistry model. Specifically, the eddy dissipation model produced higher exit pressures and velocities. The study concluded the proper selection of combustion model is important for accurately evaluating performance metrics like thrust generated from a pulse jet engine.
IRJET - Design, Prototyping and Analysis of Modified Universal CouplingIRJET Journal
This document describes the design, prototyping, and analysis of a modified universal coupling. The authors created 3D models of the coupling in UNIGRAPHICS software and used rapid prototyping with fused deposition modeling to fabricate prototypes. They then performed finite element analysis on the coupling in ANSYS to analyze the total deformation and equivalent stress when made from structural steel and stainless steel under rotational forces. The modified design allows power transmission between misaligned shafts up to 60 degrees, compared to 30 degrees for a normal universal coupling.
Finite Element Analysis of Bus Structure as per ECER29IRJET Journal
1) The document presents a finite element analysis of a bus structure to improve crashworthiness and safety according to the ECER29 standard.
2) The baseline bus design did not meet ECER29 requirements as there was insufficient survival space between the dummy model and steering system during frontal impact simulations.
3) The researchers developed a modified design with two zones - a crumple zone to absorb impact energy and a driver compartment zone to resist deformation. Simulations of the modified design showed sufficient survival space, improving crashworthiness.
Compound Chain Drive Transmission System for Automotive VehiclesIRJET Journal
This document summarizes a research paper on designing a compound chain drive transmission system for an all-terrain vehicle. The system uses a compound arrangement of sprockets and chains to achieve a higher overall gear ratio of 4.57 within the space constraints. Finite element analysis was conducted on the aluminum alloy compound hubs to validate stresses remained below yield levels under maximum torque loads. The compound drive design improved the vehicle's torque, speed, and efficiency while meeting the objectives of reduced weight and safer design.
Stress Analysis Of Connecting Rod For Diesel Engine With Different MaterialsIRJET Journal
This document analyzes the stress on a connecting rod for a diesel engine made from different materials using finite element analysis. A 3D model of the connecting rod was created in SolidWorks and imported into ANSYS for simulation. Static structural analysis was performed on connecting rod models made from structural steel, 42CrMo4 steel alloy, 7075 aluminum alloy, Ti-6Al-4v titanium alloy, and C-70 carbon steel. Results found the titanium alloy had the highest safety factor but was more expensive than other materials. The 42CrMo4 steel alloy had the lowest deformation and high safety factor, making it the recommended alternative to titanium. Structural steel increased weight and had the lowest safety factor. This analysis determined the best
DESIGN AND ANALYSIS OF HELICOPTER MAIN ROTOR HEADIRJET Journal
This document describes the design and analysis of a helicopter main rotor head. It begins with an abstract that outlines the objectives of modeling and analyzing a helicopter rotor head in SOLIDWORKS and ANSYS software. The introduction provides background on the main components of a helicopter rotor system. The methodology section then details the steps taken, which included designing the rotor head in SOLIDWORKS based on calculations, performing structural and modal analyses in ANSYS, and evaluating different materials. Dimensions of the rotor head are also presented. The document analyzes the rotor head to evaluate stresses, natural frequencies, and fatigue life.
Design And Optimization Of Chassis Of All Terrain VehicleIRJET Journal
1) The document describes the design and optimization of a chassis for an all-terrain vehicle (ATV). Finite element analysis was used to determine stress levels and displacement when loads are applied.
2) Various chassis frame designs were considered and a tubular space frame design was selected for its multi-directional impact safety. Materials like chromoly 4130 steel were chosen for its strength, availability, and weldability.
3) A methodology is described for building the chassis, modeling it, and factors considered like safety, comfort, and optimization. Calculations were done to determine maximum bending moments and select a material thickness. A torsional rigidity test of the chassis design is also described.
IRJET - Feasibility Analysis and Structural Evaluation of Connecting RODIRJET Journal
This document discusses the feasibility analysis and structural evaluation of a connecting rod made from aluminum alloy Al6063-T6. Conventionally, connecting rods are made from steel via forging, but this is costly and less productive. The authors modeled a connecting rod in CAD software, meshed it in Hypermesh, and applied typical tensile and compressive loads in static FEA analysis using Optistruct. The maximum principal stresses under both loads were less than the material yield strength, indicating the aluminum design is structurally sound and a viable, lower-cost alternative to steel.
Design and Analysis of a 4 Wheel Drive Transmission for BAJA SAEIRJET Journal
This paper outlines the design and analysis of a 4-wheel drive transmission system for an all-terrain vehicle (ATV) competing in BAJA SAE competitions. A Briggs and Stratton engine is coupled with a continuously variable transmission to provide infinite gear ratios between 0.6 to 3.9. A 2-stage gearbox with an overall 8:1 reduction ratio is used to increase torque delivered to the wheels. Detailed component designs were created in SolidWorks and strength/material selection was analyzed in ANSYS. The transmission system was optimized through simulations and calculations to ensure it can efficiently deliver necessary speed and torque under various dynamic and endurance race conditions.
DRAG REDUCTION ANALYSIS OF A V-GUTTER IN AN AFTER-BURNER BY GEOMETRICAL MODIF...IRJET Journal
This document discusses computational fluid dynamics (CFD) analysis of drag reduction for a V-shaped gutter used in aircraft jet engine afterburners. V-gutters are flame stabilizers that experience drag when not in use, reducing engine efficiency. The study models three V-gutter designs using ANSYS Fluent software: the original design, and two modified designs (one curved, one linear). It simulates airflow and calculates drag forces, finding the linear modified design experiences the lowest drag of 1128.4947N, indicating it could improve afterburner performance through reduced drag during non-use compared to the original design. In conclusion, modifying the V-gutter shape can reduce drag and thus potentially enhance
IRJET- Comparative Study of Staircase with Various Support Conditions using S...IRJET Journal
The document presents a comparative study of staircase models with various support conditions using STAAD.Pro software. Six different support types for the staircase slab are modeled and analyzed. Bending moments and deflections are calculated and compared graphically at critical locations for each support type. The results show that support conditions have a significant impact on the structural behavior of the staircase slab. Support types that involve the landing slab being supported on its edges parallel to the flight direction experience substantial restraint effects. While the analysis provides insight, experimental validation is recommended to better understand the true structural behavior of staircases under different support conditions. Design considerations for three support types are also proposed based on the analytical findings.
IRJET- Predicting Filed H1-B Visa Petitions StatusIRJET Journal
This document presents a comparative study of the behavior of staircases with various support conditions using the STAAD.Pro finite element analysis software. Six different support configurations (CASE I to CASE VI) for a doglegged staircase model are analyzed to determine bending moments and deflections. The results show variations in moments and deflections at critical locations along the stair slab. It is found that stair slabs behave differently depending on the support arrangement and that specifications in design codes may not apply uniformly to all configurations. Additional supporting arrangements provide significant restraint. However, experimental validation is needed to better understand the true behavior of staircases under different support conditions.
IRJET- Quadrotor Modeling and Control using PID TechniqueIRJET Journal
The document describes modeling and PID control of a quadrotor unmanned aerial vehicle. It presents the quadrotor model and equations of motion. PID controllers are designed and tuned for roll, pitch, yaw, and altitude control. Simulation results show the PID controllers provide stable response for the system with good rise times and minimal overshoot and steady state error for attitude angles. The altitude response has longer rise time and some overshoot and steady state error. Overall, the PID control strategy successfully stabilized the quadrotor model.
Strength Improvement of Bus Body Structure with Design ModificationIRJET Journal
This document summarizes research conducted to improve the strength of bus body structures through design modifications. It begins by describing issues with current bus body designs, including failures at joint locations. The objectives of the study were to analyze an existing bus body design using finite element analysis (FEA) to identify weak points, redesign problematic components like body pillars and clits to increase strength, and verify the modified design through FEA.
FEA of the original design found high stresses concentrated at clit joints, identifying them as failure prone. To address this, the researchers redesigned the clit with increased dimensions. FEA of the modified design showed reduced displacement and stresses compared to the original, confirming improved strength. The study demonstrates how
IRJET- Design and Development of Portable 3-Axis CNC Router MachineIRJET Journal
This document describes the design and development of a portable 3-axis CNC router machine. The machine was designed to reduce cost and complexity compared to bulkier engraving machines. It can be used for engraving, cutting, drilling, and milling of materials like wood, acrylic, and PCBs. The design of the machine involved modeling in Creo software and considering factors like required forces, motor torques, and material selections. Tests showed the machine could carve designs in wood and acrylic with 99.9% accuracy and 100% depth accuracy within a 280x170x65mm work area.
IRJET - Design and Computational Fluid Dynamic Simulation of Micro Air Ve...IRJET Journal
This document describes the design and computational fluid dynamic (CFD) simulation of a micro air vehicle (MAV) propeller. It begins with introductions to unmanned aerial vehicles (UAVs) and MAVs. It then discusses propellers for MAVs and the importance of thrust. The document outlines the design of the MAV propeller, including the selection of the Clark-Y airfoil section based on its aerodynamic properties. It also provides the coordinates of the Clark-Y airfoil. Finally, it describes the CFD simulation process using ANSYS Fluent software to analyze thrust performance and validate the analytical results.
Design of Starting Resistance for AC and DC Machines using Computer Analysis ...IRJET Journal
This document discusses the design of starting resistances for AC and DC motors using computer analysis in C language. It presents methods for designing starters for 3 types of motors: DC series motors, DC shunt motors, and slip-ring induction motors (AC). For each motor type, the relevant circuit diagrams and equations for determining the number of resistance sections and their values are provided. The analysis allows users to input motor parameters and automatically obtain starter resistance values. Benefits include precise resistance values, gradual speed increase, and reduced analysis time. Future work may expand the program's capabilities and improve the user interface.
MODELLING AND SIMULATION OF COMPOSITE MATERIAL PROPELLER SHAFT FOR ASHOK LEYL...IRJET Journal
1) The document describes modelling and simulation of a composite material propeller shaft for an Ashok Leyland truck engine using finite element analysis.
2) A CAD model of the propeller shaft was created and imported into ANSYS for static structural analysis using different materials, including conventional steel and composite materials like E-glass/epoxy and carbon/epoxy.
3) The results of the analysis show that the composite material propeller shafts experienced lower von-Mises stresses than the steel shaft and provided significant weight savings of up to 80%, with the carbon/epoxy composite providing the greatest weight reduction.
Design and Validation of a Light Vehicle Tubular Space Frame ChassisIRJET Journal
This document summarizes a research paper that designed and validated a light vehicle tubular space frame chassis using finite element analysis. Key points:
1. A SAE BAJA space frame was designed according to competition rules and material availability constraints. Analytical and numerical models were compared to validate design.
2. Beam elements were found to be most efficient for modeling frame members, while plate elements were used for an engine fixation plate.
3. A 3D model was created in SolidWorks and simulated under inertial, impact, and torsion loading scenarios to validate the frame's performance.
4. Results indicated the proposed frame can safely operate under expected road conditions, allowing the manufacturing process to proceed
Artificial Intelligence Based Method for Obtaining Aerodynamic Characteristic...IRJET Journal
This document describes research on developing an artificial intelligence model using convolutional neural networks (CNNs) to predict aerodynamic characteristics of airfoils. The researchers created a dataset of airfoil images with associated aerodynamic property labels by running simulations on over 100 airfoils under different flow conditions. They trained CNN models to predict lift, drag, and other properties, achieving over 80% accuracy on held-out test data. The models were able to predict properties of new airfoils 50 times faster than conventional computational fluid dynamics simulations. The researchers concluded the CNN models provide an efficient surrogate method for aerodynamic analysis of airfoil design.
Structural Analysis of Go-kart Chassis using different materials to find the ...IRJET Journal
This document summarizes a study that analyzed the structural performance of a go-kart chassis made from different materials under various impact conditions using finite element analysis. The chassis was designed in CAD software and then simulated in ANSYS for front, side, and rear impacts using four steel materials: AISI 1018, AISI 1026, AISI 4130, and AISI 1020. The simulations calculated stress levels and deformations. Results showed the factor of safety for each material and impact scenario, identifying designs that were safe or at risk of failure based on exceeding the material's yield strength. AISI 4130 generally had the highest factors of safety, suggesting it could best withstand the forces experienced during impacts
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
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This document describes the design and computational fluid dynamic (CFD) simulation of a micro air vehicle (MAV) propeller. It begins with introductions to unmanned aerial vehicles (UAVs) and MAVs. It then discusses propellers for MAVs and the importance of thrust. The document outlines the design of the MAV propeller, including the selection of the Clark-Y airfoil section based on its aerodynamic properties. It also provides the coordinates of the Clark-Y airfoil. Finally, it describes the CFD simulation process using ANSYS Fluent software to analyze thrust performance and validate the analytical results.
Design of Starting Resistance for AC and DC Machines using Computer Analysis ...IRJET Journal
This document discusses the design of starting resistances for AC and DC motors using computer analysis in C language. It presents methods for designing starters for 3 types of motors: DC series motors, DC shunt motors, and slip-ring induction motors (AC). For each motor type, the relevant circuit diagrams and equations for determining the number of resistance sections and their values are provided. The analysis allows users to input motor parameters and automatically obtain starter resistance values. Benefits include precise resistance values, gradual speed increase, and reduced analysis time. Future work may expand the program's capabilities and improve the user interface.
MODELLING AND SIMULATION OF COMPOSITE MATERIAL PROPELLER SHAFT FOR ASHOK LEYL...IRJET Journal
1) The document describes modelling and simulation of a composite material propeller shaft for an Ashok Leyland truck engine using finite element analysis.
2) A CAD model of the propeller shaft was created and imported into ANSYS for static structural analysis using different materials, including conventional steel and composite materials like E-glass/epoxy and carbon/epoxy.
3) The results of the analysis show that the composite material propeller shafts experienced lower von-Mises stresses than the steel shaft and provided significant weight savings of up to 80%, with the carbon/epoxy composite providing the greatest weight reduction.
Design and Validation of a Light Vehicle Tubular Space Frame ChassisIRJET Journal
This document summarizes a research paper that designed and validated a light vehicle tubular space frame chassis using finite element analysis. Key points:
1. A SAE BAJA space frame was designed according to competition rules and material availability constraints. Analytical and numerical models were compared to validate design.
2. Beam elements were found to be most efficient for modeling frame members, while plate elements were used for an engine fixation plate.
3. A 3D model was created in SolidWorks and simulated under inertial, impact, and torsion loading scenarios to validate the frame's performance.
4. Results indicated the proposed frame can safely operate under expected road conditions, allowing the manufacturing process to proceed
Artificial Intelligence Based Method for Obtaining Aerodynamic Characteristic...IRJET Journal
This document describes research on developing an artificial intelligence model using convolutional neural networks (CNNs) to predict aerodynamic characteristics of airfoils. The researchers created a dataset of airfoil images with associated aerodynamic property labels by running simulations on over 100 airfoils under different flow conditions. They trained CNN models to predict lift, drag, and other properties, achieving over 80% accuracy on held-out test data. The models were able to predict properties of new airfoils 50 times faster than conventional computational fluid dynamics simulations. The researchers concluded the CNN models provide an efficient surrogate method for aerodynamic analysis of airfoil design.
Structural Analysis of Go-kart Chassis using different materials to find the ...IRJET Journal
This document summarizes a study that analyzed the structural performance of a go-kart chassis made from different materials under various impact conditions using finite element analysis. The chassis was designed in CAD software and then simulated in ANSYS for front, side, and rear impacts using four steel materials: AISI 1018, AISI 1026, AISI 4130, and AISI 1020. The simulations calculated stress levels and deformations. Results showed the factor of safety for each material and impact scenario, identifying designs that were safe or at risk of failure based on exceeding the material's yield strength. AISI 4130 generally had the highest factors of safety, suggesting it could best withstand the forces experienced during impacts
Similar to Dexter : Design, Fabrication, Testing & Validation of a Portable Tabletop Solid Rocket Motor - Static Performance Thrust Stand with a Wirelessly Controlled Data Acquisition System (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.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Gas agency management system project report.pdfKamal Acharya
The project entitled "Gas Agency" is done to make the manual process easier by making it a computerized system for billing and maintaining stock. The Gas Agencies get the order request through phone calls or by personal from their customers and deliver the gas cylinders to their address based on their demand and previous delivery date. This process is made computerized and the customer's name, address and stock details are stored in a database. Based on this the billing for a customer is made simple and easier, since a customer order for gas can be accepted only after completing a certain period from the previous delivery. This can be calculated and billed easily through this. There are two types of delivery like domestic purpose use delivery and commercial purpose use delivery. The bill rate and capacity differs for both. This can be easily maintained and charged accordingly.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
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.
LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant
Dexter : Design, Fabrication, Testing & Validation of a Portable Tabletop Solid Rocket Motor - Static Performance Thrust Stand with a Wirelessly Controlled Data Acquisition System