This document discusses tribological aspects of internal combustion engines. It begins by defining tribology as the study of interacting surfaces in relative motion, including friction, wear, and lubrication. It then discusses the various sources of friction losses in engines, including direct friction between components, pumping losses, blowby losses, and power used to drive accessories. Wear in engines can result from abrasion, adhesion, fatigue and other mechanisms. Effective lubrication is needed to minimize friction and wear between moving engine parts. The key functions of engine lubricants are discussed as well as different lubrication systems used in engines. The document concludes that minimizing friction through effective lubrication is important for optimizing engine performance and reducing wear on components.
IRJET - Development of Braking System in AutomobilesIRJET Journal
This document discusses the development of braking systems in automobiles. It provides an overview of the history and evolution of brakes from early drum brakes to modern disc brakes. It then describes the key components of braking systems including the brake pedal, master cylinder, lines, drums, discs, calipers, and pads. It also explains the different types of brakes such as mechanical, hydraulic, and air brakes as well as their working principles. Solidworks software is used to design and analyze models of brake components.
An Investigation on Failure of Automotive Components in CarsIRJET Journal
This document discusses common failures that occur in automotive components and potential causes. It analyzes failures in clutches, brake calipers, wheel cylinders, master cylinders, tires, shocks and struts, spark plugs, drive belts, and water pumps. For each component, the document identifies failure modes, such as leaks, cracks, wear, and corrosion. It suggests that preventative maintenance can help prolong the life of components and prevent dangerous breakdown failures on the road. The goal is to help engineers identify ways to reduce failures and improve reliability and safety in automotive systems.
IRJET- Optimization Technique of Epicyclic Gear Train and Failure of Gears: A...IRJET Journal
This document reviews optimization techniques for epicyclic gear trains and common failures of gears. It discusses how finite element analysis and optimization tools can be used to optimize gearbox design and reduce weight. Some key points:
- Epicyclic gear trains have advantages like high torque capacity, compact size, and efficiency, but also have challenges like high bearing loads.
- Common gear failures include surface wear, cracking, pitting, and corrosion due to factors like loading, lubrication issues, and material defects.
- Optimization techniques aim to minimize weight and number of components while improving load capacity and efficiency. This includes using finite element analysis to optimize housing design.
- Proper design, material selection, lubrication
1. The document discusses engine friction and lubrication systems. It describes the main sources of frictional losses in engines as direct frictional losses, pumping losses, power losses to drive components like the scavenging pump, and power losses to drive auxiliary components.
2. It then discusses the different types of lubrication systems used in engines - mist, wet sump, and dry sump systems. The wet sump system, which is most common, has variations like the splash, splash and pressure, and pressure feed systems.
3. Key factors that affect mechanical friction are also summarized, such as engine design parameters, speed, load, temperature, oil viscosity, and the lubrication system used.
The document discusses brake fluid, including its types, specifications, inspection, and testing. It describes the various DOT classifications of brake fluid (DOT 3, 4, 5, 5.1) and their characteristics such as boiling points. The document emphasizes that brake fluid absorbs moisture over time, so it should be changed regularly, such as every two years or 30,000 miles. When inspecting brake fluid, technicians should check the level, color, contamination using test strips or boiling point testers. Brake fluid should not be mixed and the type used must follow manufacturer specifications.
This document discusses lubricants for the automotive, appliance, assembly, and maintenance industries. It describes the typical applications and markets served, including automotive, assembly, maintenance, imaging, and appliances. The major functions of the lubricants are listed as lubricating, bonding, sealing, coating, fabricating, and replicating. Specific issues that can cause bearing failures like lubrication problems, excessive loads, contamination, misalignment, and corrosion are examined. Solutions to address these failures are provided.
This document discusses lubrication of medium speed diesel engines. It covers topics like the properties required for lubrication in internal combustion engines including bearing lubrication, piston cooling, cylinder lubrication, and cam shaft/gear lubrication. It also discusses recent engine design trends that impact lubrication like higher combustion pressures and describes how this affects properties like viscosity and detergency needed in lubricating oils. The document provides an overview of used oil analysis and how it can help identify issues like ingression of fuel or combustion byproducts into the oil from sources like leakage. It provides an example analysis of engine #1 where rises in viscosity and drops in base number indicate likely fuel ingression that could be addressed by identifying and fixing the ingress source.
IRJET - Development of Braking System in AutomobilesIRJET Journal
This document discusses the development of braking systems in automobiles. It provides an overview of the history and evolution of brakes from early drum brakes to modern disc brakes. It then describes the key components of braking systems including the brake pedal, master cylinder, lines, drums, discs, calipers, and pads. It also explains the different types of brakes such as mechanical, hydraulic, and air brakes as well as their working principles. Solidworks software is used to design and analyze models of brake components.
An Investigation on Failure of Automotive Components in CarsIRJET Journal
This document discusses common failures that occur in automotive components and potential causes. It analyzes failures in clutches, brake calipers, wheel cylinders, master cylinders, tires, shocks and struts, spark plugs, drive belts, and water pumps. For each component, the document identifies failure modes, such as leaks, cracks, wear, and corrosion. It suggests that preventative maintenance can help prolong the life of components and prevent dangerous breakdown failures on the road. The goal is to help engineers identify ways to reduce failures and improve reliability and safety in automotive systems.
IRJET- Optimization Technique of Epicyclic Gear Train and Failure of Gears: A...IRJET Journal
This document reviews optimization techniques for epicyclic gear trains and common failures of gears. It discusses how finite element analysis and optimization tools can be used to optimize gearbox design and reduce weight. Some key points:
- Epicyclic gear trains have advantages like high torque capacity, compact size, and efficiency, but also have challenges like high bearing loads.
- Common gear failures include surface wear, cracking, pitting, and corrosion due to factors like loading, lubrication issues, and material defects.
- Optimization techniques aim to minimize weight and number of components while improving load capacity and efficiency. This includes using finite element analysis to optimize housing design.
- Proper design, material selection, lubrication
1. The document discusses engine friction and lubrication systems. It describes the main sources of frictional losses in engines as direct frictional losses, pumping losses, power losses to drive components like the scavenging pump, and power losses to drive auxiliary components.
2. It then discusses the different types of lubrication systems used in engines - mist, wet sump, and dry sump systems. The wet sump system, which is most common, has variations like the splash, splash and pressure, and pressure feed systems.
3. Key factors that affect mechanical friction are also summarized, such as engine design parameters, speed, load, temperature, oil viscosity, and the lubrication system used.
The document discusses brake fluid, including its types, specifications, inspection, and testing. It describes the various DOT classifications of brake fluid (DOT 3, 4, 5, 5.1) and their characteristics such as boiling points. The document emphasizes that brake fluid absorbs moisture over time, so it should be changed regularly, such as every two years or 30,000 miles. When inspecting brake fluid, technicians should check the level, color, contamination using test strips or boiling point testers. Brake fluid should not be mixed and the type used must follow manufacturer specifications.
This document discusses lubricants for the automotive, appliance, assembly, and maintenance industries. It describes the typical applications and markets served, including automotive, assembly, maintenance, imaging, and appliances. The major functions of the lubricants are listed as lubricating, bonding, sealing, coating, fabricating, and replicating. Specific issues that can cause bearing failures like lubrication problems, excessive loads, contamination, misalignment, and corrosion are examined. Solutions to address these failures are provided.
This document discusses lubrication of medium speed diesel engines. It covers topics like the properties required for lubrication in internal combustion engines including bearing lubrication, piston cooling, cylinder lubrication, and cam shaft/gear lubrication. It also discusses recent engine design trends that impact lubrication like higher combustion pressures and describes how this affects properties like viscosity and detergency needed in lubricating oils. The document provides an overview of used oil analysis and how it can help identify issues like ingression of fuel or combustion byproducts into the oil from sources like leakage. It provides an example analysis of engine #1 where rises in viscosity and drops in base number indicate likely fuel ingression that could be addressed by identifying and fixing the ingress source.
MT-10 improves hydraulic systems in several ways: it reduces friction and wear in pumps and valves, lowers operating temperatures, continues protecting against corrosion and wear even with water contamination, cleans blocked lines, and reduces the damage caused by solid particle contamination.
This document describes the design of a brake caliper for an all-terrain vehicle. It aims to reduce the size and weight of the caliper. The design process involves selecting aluminum 7075-T6 as the material for its strength and lightweight properties. Calculations are shown to determine the required clamping force and piston size. A floating caliper design is proposed, and the importance of the seal groove geometry for piston retraction is discussed. A CAD model of the designed caliper is presented. The conclusions discuss the importance of determining braking forces and selecting appropriate piston dimensions.
1) Servo spot welding offers superior performance and lower lifetime costs for auto manufacturing compared to older pneumatic spot welding equipment.
2) Pneumatic spot welding equipment suffers from inconsistent weld quality and force due to air pressure fluctuations, while servo spot welding allows for precise programming of position, force, and velocity for each weld.
3) Servo spot welding equipment has higher initial costs but lower lifetime costs due to reductions in energy usage, weld cap replacement needs, and increased reliability over pneumatic systems.
The document discusses drum brake diagnosis and repair procedures. It describes removing the brake drum, inspecting components like the backing plate and brake linings, and overhauling the wheel cylinders. The key steps are removing the drum, inspecting parts for wear, lubricating contact surfaces on the backing plate, and replacing worn springs and hardware.
This document provides information on various repair methods for machine elements and components. It discusses repair techniques for machine beds including riveting and clamping cracks. It also covers repair of slideways through scraping, grinding and machining. Methods for repairing gears, bearings and other components are described. Failure analysis techniques like fault tree analysis and event tree analysis are also summarized.
A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or rotor to create friction. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary. The energy of motion is converted into waste heat which must be dispersed. Disc brake system is widely used on front wheels in mid range two wheeler such as - commuter and sports bikes. The Disc brake system is used on the front wheels of most hatchback cars, entry level sedans and MUVs whereas, it is also widely used on both front and rear wheels of high end cars and SUVs in combination with hydraulic vacuum brake actuating systems. Vikrant Yadav | Pankaj Yadav "Overview of Disc Brake" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31530.pdf Paper Url :https://www.ijtsrd.com/engineering/automotive-engineering/31530/overview-of-disc-brake/vikrant-yadav
Analysis of Wear Rate of Internal Combustion Engine using Ferrography TechniqueIRJET Journal
This document analyzes wear rate in an internal combustion engine using ferrography technique. Lubricating oil samples were collected from the oil sump of a single cylinder, four-stroke petrol engine at different mileage intervals. Ferrography analysis was performed to identify wear particle concentration, shape, and size in each sample. Results showed wear particle concentration was highest for the new engine and decreased with mileage, indicating higher wear rate initially that lowered over time. Ferrography allows predictive maintenance by detecting potential component failures from abnormal wear particles before serious damage occurs.
Parveen Kumar completed a summer internship at Lotus Auto Engg. Ltd. in Bhiwadi, Rajasthan from May 20 to July 5, 2016. The internship focused on studying the production process of ring gears. Ring gears are fitted onto vehicle flywheels and have teeth that interact with the starter motor. Lotus Auto produces ring gears through a multi-step process that includes blanking coils of steel, machining, gear hobbing to cut teeth, chamfering edges, washing, and induction hardening to increase hardness of the teeth. The internship provided Parveen the opportunity to understand and analyze Lotus Auto's ring gear production line.
Review of Fault Detection in Rolling Element BearingAM Publications
Defective bearings are the source of vibrations in machines. Due to constructional features of bearing, they generate
vibrations. As the condition of bearings changes during use, the nature of vibrations also changes and it has a definite
characteristics depending upon the cause. This characteristic feature of bearing makes them suitable for vibration
monitoring. This is a review paper for fault detection technique in rolling element bearing, it covers rolling element
bearing components and its geometry, bearing failure modes, bearing condition monitoring techniques, time domain
and frequency domain techniques.
This document discusses repair and maintenance methods for various types of material handling equipment. It covers the objectives and need for maintenance of material handling equipment. Preventive maintenance techniques like inspection, repair, and overhaul are described. Specific maintenance strategies and schedules are provided for hoists and cranes, conveyors, forklifts, and other miscellaneous equipment. The importance of a systems approach to maintenance management is also highlighted.
Here are the key parts of a piston and their functions:
- Piston head (crown): Transmits force from combustion to connecting rod.
- Piston rings: Provide seal between piston and cylinder wall to prevent leakage of combustion gases and oil.
- Piston skirt: Guides piston up and down inside cylinder and transfers lateral loads from connecting rod.
- Piston pin: Connects small end of connecting rod to piston and allows it to rotate freely during operation.
The piston is a critical component that converts expanding combustion gases into linear motion via the connecting rod and crankshaft. It must withstand high pressures and temperatures while forming an effective gas seal with the cylinder. Piston rings, skirt
Study of automobile engine friction and reduction trends Shubham Bhasin
This document summarizes a study on automobile engine friction and lubricant additives' role in reducing friction. It discusses the main components that contribute to engine friction, including the ring pack, connecting rod, and valvetrain systems. It also examines trends in friction and wear reduction through mechanical design, coatings, and lubricant additives. Lubricant additives can impact friction in different regimes by modifying viscosity or forming low-shear surface layers. Emerging engine technologies will require new lubricant formulations that control deposits while maintaining fuel efficiency and wear prevention.
Effect of brake oil pressure on the performance of coated ventilated disc brakeIRJET Journal
The document discusses the effect of brake oil pressure on the performance of coated ventilated disc brakes. Three discs were tested - a plain uncoated disc and two discs with different coatings. Tests were conducted at varying brake oil pressures and initial temperatures. The results showed that the disc coated with Al2O3-87% TiO2 13% performed best, with the lowest brake force, coefficient of friction, and final temperature compared to the other discs. Increasing the brake oil pressure led to higher brake forces and coefficients of friction for all discs.
IRJET- Investigation of Performance and Emission Characteristics of CI En...IRJET Journal
This document reviews the effects of varying fuel injection timing and injection pressure on the performance and emissions of diesel engines. Specifically, it discusses how advancement and retardation of injection timing and changes in injection pressure can impact combustion characteristics and indicators like carbon monoxide, hydrocarbons, oxides of nitrogen, smoke, and particulate matter. The review analyzes these impacts based on various combustion, performance and emission parameters. It aims to further the work on optimizing injection parameters to improve engine efficiency and reduce emissions.
Faults Analysis and Reliability Improvement of Pot MotorIRJET Journal
This document discusses faults analysis and reliability improvement of pot motors used in spinning machines for rayon production. Pot motors must run continuously for 24 hours under harsh chemical conditions. Common faults include stator winding issues, single phasing, broken rotor bars, and bearing damage from high temperatures, contamination, or improper lubrication. To improve reliability, techniques were implemented such as using a capacitor bank to improve power factor, ceramic bearings, copper bars in the rotor, increasing the stator winding diameter, and regular visual inspections. The goal is to reduce faults and maintenance while increasing pot motor reliability.
The Automobile Industry and the many other various engine
manufacturers need improved engine performance in keeping up with the necessary changes to protect our wallets and environment. Both the Automobile and Engine Industries are now struggling to comply with Government requirements and are falling behind in keeping up with proposed future regulations and Government mandates that will provide the necessary advancement to protect us and the Earth’s environment. The Automotive Industry has requested that the US Government reduce the fuel economy and emission requirements for future vehicles because, by their own admission, they do not have the technology to meet such fuel
economy and pollution mandates for the foreseeable future. Yoke arm has changed all of this
IRJET- Design, Manufacturing and Testing of Transparent Acrylic Prototype of ...IRJET Journal
The document describes the design, manufacturing, and testing of a transparent acrylic prototype of a hydraulic brake master cylinder. Key points:
1) The prototype allows visualization of brake fluid movement and air bubble accumulation inside the master cylinder during operation and bleeding, helping to evaluate seal wear and failure causes.
2) The prototype was tested under maximum pressure conditions to observe seal wear and during bleeding to track air bubble movement for improved design.
3) Testing found positioning the brake light switch at the bottom and using solid brake lines can reduce air bubble accumulation inside the cylinder.
IRJET-Design and Analysis of Oil Pump for Improving its Efficiency in I. C. E...IRJET Journal
This document describes the design and analysis of an oil pump to improve engine efficiency. It begins with an introduction to oil pumps and their purpose in lubricating engine components. The authors then designed an oil pump rotor using CATIA software. Structural and thermal analyses were performed on rotor designs made from various materials (steel, aluminum, cast iron, titanium) to evaluate von Mises stress, strain, and deformation. The analyses found that cast iron experienced the least stress and deformation compared to other materials. Therefore, the authors recommend using cast iron for the oil pump rotor design to optimize efficiency.
Analysis of Bearing and Shaft Failures in Motors.pdfZiad Salem
This document discusses bearing and shaft failures in electric motors. It provides details on bearing stresses, fundamentals, loading principles, lubrication, failure analysis methodology and common failure modes. The key points are:
- Bearing failures account for 50-65% of motor failures, with improper lubrication, contamination, excessive loads and vibration being common causes.
- Proper lubrication and avoiding contamination are critical for bearing life. Grease is most common for small/medium motors, with polyurea greases suitable for higher temperatures.
- A methodology is presented to accurately diagnose bearing failures which considers the failure mode, pattern, appearance, application and maintenance history. The most common failure modes result from fatigue, fret
IRJET- Design and Analysis of a Two Stage Reduction GearboxIRJET Journal
This document describes the design and analysis of a two-stage reduction gearbox for an all-terrain vehicle. It discusses the components, methodology, modeling, and analysis of the gearbox. The gearbox was designed with gears, shafts, bearings and a casing using CAD software. Finite element analysis was performed to analyze stresses on gears and shafts. Computational fluid dynamics was used to analyze oil flow inside the gearbox. The results showed the gearbox design is efficient and improves upon current designs by being lighter, more compact and durable. Further optimization of the design is possible by integrating additional components to simplify the powertrain assembly.
Variable compression ratio (vcr) engine a reviewprjpublications
This document summarizes various approaches to achieving variable compression ratio (VCR) in automobile engines. It discusses 6 main approaches: 1) Moving the crankshaft axis, 2) Modifying the connecting rod geometry, 3) Moving the cylinder head, 4) Using a secondary piston or valve to vary combustion chamber volume, 5) Varying the piston deck height, and 6) Moving the crankpins. Benefits of VCR engines include improved efficiency, reduced emissions, and fuel flexibility. However, commercial barriers remain due to increased complexity and changes required to the base engine architecture.
IRJET- Analysis of Static Load Bearing Capacity of the Ball Bearing – A ReviewIRJET Journal
The document summarizes research analyzing the static load bearing capacity of ball bearings. It discusses using finite element analysis to determine capacity without destructive testing. The research found a linear relationship between the deviation of capacity results from finite element vs practical testing and the bearing size. A linear interpolation equation was developed relating deviation to bearing size. Laboratory testing on bearings of different sizes validated the relationship and showed deformation increasing with load. The research concludes the equation can be used to determine static capacity from bearing size.
MT-10 improves hydraulic systems in several ways: it reduces friction and wear in pumps and valves, lowers operating temperatures, continues protecting against corrosion and wear even with water contamination, cleans blocked lines, and reduces the damage caused by solid particle contamination.
This document describes the design of a brake caliper for an all-terrain vehicle. It aims to reduce the size and weight of the caliper. The design process involves selecting aluminum 7075-T6 as the material for its strength and lightweight properties. Calculations are shown to determine the required clamping force and piston size. A floating caliper design is proposed, and the importance of the seal groove geometry for piston retraction is discussed. A CAD model of the designed caliper is presented. The conclusions discuss the importance of determining braking forces and selecting appropriate piston dimensions.
1) Servo spot welding offers superior performance and lower lifetime costs for auto manufacturing compared to older pneumatic spot welding equipment.
2) Pneumatic spot welding equipment suffers from inconsistent weld quality and force due to air pressure fluctuations, while servo spot welding allows for precise programming of position, force, and velocity for each weld.
3) Servo spot welding equipment has higher initial costs but lower lifetime costs due to reductions in energy usage, weld cap replacement needs, and increased reliability over pneumatic systems.
The document discusses drum brake diagnosis and repair procedures. It describes removing the brake drum, inspecting components like the backing plate and brake linings, and overhauling the wheel cylinders. The key steps are removing the drum, inspecting parts for wear, lubricating contact surfaces on the backing plate, and replacing worn springs and hardware.
This document provides information on various repair methods for machine elements and components. It discusses repair techniques for machine beds including riveting and clamping cracks. It also covers repair of slideways through scraping, grinding and machining. Methods for repairing gears, bearings and other components are described. Failure analysis techniques like fault tree analysis and event tree analysis are also summarized.
A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or rotor to create friction. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary. The energy of motion is converted into waste heat which must be dispersed. Disc brake system is widely used on front wheels in mid range two wheeler such as - commuter and sports bikes. The Disc brake system is used on the front wheels of most hatchback cars, entry level sedans and MUVs whereas, it is also widely used on both front and rear wheels of high end cars and SUVs in combination with hydraulic vacuum brake actuating systems. Vikrant Yadav | Pankaj Yadav "Overview of Disc Brake" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31530.pdf Paper Url :https://www.ijtsrd.com/engineering/automotive-engineering/31530/overview-of-disc-brake/vikrant-yadav
Analysis of Wear Rate of Internal Combustion Engine using Ferrography TechniqueIRJET Journal
This document analyzes wear rate in an internal combustion engine using ferrography technique. Lubricating oil samples were collected from the oil sump of a single cylinder, four-stroke petrol engine at different mileage intervals. Ferrography analysis was performed to identify wear particle concentration, shape, and size in each sample. Results showed wear particle concentration was highest for the new engine and decreased with mileage, indicating higher wear rate initially that lowered over time. Ferrography allows predictive maintenance by detecting potential component failures from abnormal wear particles before serious damage occurs.
Parveen Kumar completed a summer internship at Lotus Auto Engg. Ltd. in Bhiwadi, Rajasthan from May 20 to July 5, 2016. The internship focused on studying the production process of ring gears. Ring gears are fitted onto vehicle flywheels and have teeth that interact with the starter motor. Lotus Auto produces ring gears through a multi-step process that includes blanking coils of steel, machining, gear hobbing to cut teeth, chamfering edges, washing, and induction hardening to increase hardness of the teeth. The internship provided Parveen the opportunity to understand and analyze Lotus Auto's ring gear production line.
Review of Fault Detection in Rolling Element BearingAM Publications
Defective bearings are the source of vibrations in machines. Due to constructional features of bearing, they generate
vibrations. As the condition of bearings changes during use, the nature of vibrations also changes and it has a definite
characteristics depending upon the cause. This characteristic feature of bearing makes them suitable for vibration
monitoring. This is a review paper for fault detection technique in rolling element bearing, it covers rolling element
bearing components and its geometry, bearing failure modes, bearing condition monitoring techniques, time domain
and frequency domain techniques.
This document discusses repair and maintenance methods for various types of material handling equipment. It covers the objectives and need for maintenance of material handling equipment. Preventive maintenance techniques like inspection, repair, and overhaul are described. Specific maintenance strategies and schedules are provided for hoists and cranes, conveyors, forklifts, and other miscellaneous equipment. The importance of a systems approach to maintenance management is also highlighted.
Here are the key parts of a piston and their functions:
- Piston head (crown): Transmits force from combustion to connecting rod.
- Piston rings: Provide seal between piston and cylinder wall to prevent leakage of combustion gases and oil.
- Piston skirt: Guides piston up and down inside cylinder and transfers lateral loads from connecting rod.
- Piston pin: Connects small end of connecting rod to piston and allows it to rotate freely during operation.
The piston is a critical component that converts expanding combustion gases into linear motion via the connecting rod and crankshaft. It must withstand high pressures and temperatures while forming an effective gas seal with the cylinder. Piston rings, skirt
Study of automobile engine friction and reduction trends Shubham Bhasin
This document summarizes a study on automobile engine friction and lubricant additives' role in reducing friction. It discusses the main components that contribute to engine friction, including the ring pack, connecting rod, and valvetrain systems. It also examines trends in friction and wear reduction through mechanical design, coatings, and lubricant additives. Lubricant additives can impact friction in different regimes by modifying viscosity or forming low-shear surface layers. Emerging engine technologies will require new lubricant formulations that control deposits while maintaining fuel efficiency and wear prevention.
Effect of brake oil pressure on the performance of coated ventilated disc brakeIRJET Journal
The document discusses the effect of brake oil pressure on the performance of coated ventilated disc brakes. Three discs were tested - a plain uncoated disc and two discs with different coatings. Tests were conducted at varying brake oil pressures and initial temperatures. The results showed that the disc coated with Al2O3-87% TiO2 13% performed best, with the lowest brake force, coefficient of friction, and final temperature compared to the other discs. Increasing the brake oil pressure led to higher brake forces and coefficients of friction for all discs.
IRJET- Investigation of Performance and Emission Characteristics of CI En...IRJET Journal
This document reviews the effects of varying fuel injection timing and injection pressure on the performance and emissions of diesel engines. Specifically, it discusses how advancement and retardation of injection timing and changes in injection pressure can impact combustion characteristics and indicators like carbon monoxide, hydrocarbons, oxides of nitrogen, smoke, and particulate matter. The review analyzes these impacts based on various combustion, performance and emission parameters. It aims to further the work on optimizing injection parameters to improve engine efficiency and reduce emissions.
Faults Analysis and Reliability Improvement of Pot MotorIRJET Journal
This document discusses faults analysis and reliability improvement of pot motors used in spinning machines for rayon production. Pot motors must run continuously for 24 hours under harsh chemical conditions. Common faults include stator winding issues, single phasing, broken rotor bars, and bearing damage from high temperatures, contamination, or improper lubrication. To improve reliability, techniques were implemented such as using a capacitor bank to improve power factor, ceramic bearings, copper bars in the rotor, increasing the stator winding diameter, and regular visual inspections. The goal is to reduce faults and maintenance while increasing pot motor reliability.
The Automobile Industry and the many other various engine
manufacturers need improved engine performance in keeping up with the necessary changes to protect our wallets and environment. Both the Automobile and Engine Industries are now struggling to comply with Government requirements and are falling behind in keeping up with proposed future regulations and Government mandates that will provide the necessary advancement to protect us and the Earth’s environment. The Automotive Industry has requested that the US Government reduce the fuel economy and emission requirements for future vehicles because, by their own admission, they do not have the technology to meet such fuel
economy and pollution mandates for the foreseeable future. Yoke arm has changed all of this
IRJET- Design, Manufacturing and Testing of Transparent Acrylic Prototype of ...IRJET Journal
The document describes the design, manufacturing, and testing of a transparent acrylic prototype of a hydraulic brake master cylinder. Key points:
1) The prototype allows visualization of brake fluid movement and air bubble accumulation inside the master cylinder during operation and bleeding, helping to evaluate seal wear and failure causes.
2) The prototype was tested under maximum pressure conditions to observe seal wear and during bleeding to track air bubble movement for improved design.
3) Testing found positioning the brake light switch at the bottom and using solid brake lines can reduce air bubble accumulation inside the cylinder.
IRJET-Design and Analysis of Oil Pump for Improving its Efficiency in I. C. E...IRJET Journal
This document describes the design and analysis of an oil pump to improve engine efficiency. It begins with an introduction to oil pumps and their purpose in lubricating engine components. The authors then designed an oil pump rotor using CATIA software. Structural and thermal analyses were performed on rotor designs made from various materials (steel, aluminum, cast iron, titanium) to evaluate von Mises stress, strain, and deformation. The analyses found that cast iron experienced the least stress and deformation compared to other materials. Therefore, the authors recommend using cast iron for the oil pump rotor design to optimize efficiency.
Analysis of Bearing and Shaft Failures in Motors.pdfZiad Salem
This document discusses bearing and shaft failures in electric motors. It provides details on bearing stresses, fundamentals, loading principles, lubrication, failure analysis methodology and common failure modes. The key points are:
- Bearing failures account for 50-65% of motor failures, with improper lubrication, contamination, excessive loads and vibration being common causes.
- Proper lubrication and avoiding contamination are critical for bearing life. Grease is most common for small/medium motors, with polyurea greases suitable for higher temperatures.
- A methodology is presented to accurately diagnose bearing failures which considers the failure mode, pattern, appearance, application and maintenance history. The most common failure modes result from fatigue, fret
IRJET- Design and Analysis of a Two Stage Reduction GearboxIRJET Journal
This document describes the design and analysis of a two-stage reduction gearbox for an all-terrain vehicle. It discusses the components, methodology, modeling, and analysis of the gearbox. The gearbox was designed with gears, shafts, bearings and a casing using CAD software. Finite element analysis was performed to analyze stresses on gears and shafts. Computational fluid dynamics was used to analyze oil flow inside the gearbox. The results showed the gearbox design is efficient and improves upon current designs by being lighter, more compact and durable. Further optimization of the design is possible by integrating additional components to simplify the powertrain assembly.
Variable compression ratio (vcr) engine a reviewprjpublications
This document summarizes various approaches to achieving variable compression ratio (VCR) in automobile engines. It discusses 6 main approaches: 1) Moving the crankshaft axis, 2) Modifying the connecting rod geometry, 3) Moving the cylinder head, 4) Using a secondary piston or valve to vary combustion chamber volume, 5) Varying the piston deck height, and 6) Moving the crankpins. Benefits of VCR engines include improved efficiency, reduced emissions, and fuel flexibility. However, commercial barriers remain due to increased complexity and changes required to the base engine architecture.
IRJET- Analysis of Static Load Bearing Capacity of the Ball Bearing – A ReviewIRJET Journal
The document summarizes research analyzing the static load bearing capacity of ball bearings. It discusses using finite element analysis to determine capacity without destructive testing. The research found a linear relationship between the deviation of capacity results from finite element vs practical testing and the bearing size. A linear interpolation equation was developed relating deviation to bearing size. Laboratory testing on bearings of different sizes validated the relationship and showed deformation increasing with load. The research concludes the equation can be used to determine static capacity from bearing size.
IRJET- Design and Analysis of Catalytic Converter of Automobile EngineIRJET Journal
This document summarizes a study on the design and analysis of a catalytic converter for an automobile engine. The researchers designed a baseline catalytic converter model using CAD software and analyzed it using computational fluid dynamics (CFD) to study the pressure and velocity distribution. They found high pressure losses and non-uniform flow distribution. Various modifications to the honeycomb structure diameter, thickness, and position as well as the inlet and outlet design were tested. The optimal design was found to have a centered inlet, conical inlets/outlets, and a honeycomb structure with 30mm holes positioned at the casing mid-length. This design showed improved uniform flow distribution and reduced pressure losses compared to the baseline design.
IRJET- To Design and Study the Performance Analysis of Single Cylinder Di...IRJET Journal
This document describes a study on the design and performance analysis of a single cylinder diesel engine with variable compression ratio. The study was conducted by modifying a single cylinder diesel engine to allow the compression ratio to be varied between 12-18 by changing the clearance volume using a tilting cylinder head arrangement. Performance tests were conducted on the engine at different compression ratios and the results such as brake power, fuel consumption, efficiencies were compared. The results showed that operating the engine at a lower compression ratio of 15.55:1 using the variable compression ratio technology improved some of the performance parameters compared to a fixed compression ratio of 17.5:1. The document provides details of the methodology, design of the modification, assembly and performance analysis conducted
Fundamentals and Parameters Affecting the Performance of Tire down the RoadIRJET Journal
This document discusses the fundamentals and parameters that affect tire performance on the road. It begins by describing the basic components and construction of a tire, including the bead, body plies, belts, sidewalls, and tread. It then explains how under-inflated or overloaded tires must bend more at the contact patch, requiring more force to roll down the road and generating more heat. Properly inflated tires maintain an optimal round shape. The document calculates the coefficient of rolling friction for different vehicle tires and uses it to determine the force required to overcome friction at various vehicle weights and speeds. Maintaining proper tire inflation pressure improves vehicle handling, braking, fuel efficiency and tire life.
Design and Development of Valve Lapping MachineIRJET Journal
This document describes the design and development of a valve lapping machine. Valve lapping is an important process in internal combustion engine maintenance that is currently done manually using tools like lapping sticks, which are inefficient and time-consuming. The authors developed a mechanical valve lapping machine to automate the process and reduce human involvement. The machine employs two automated motions to replace the manual motions used in traditional lapping. This is expected to improve efficiency by reducing the time taken for valve lapping compared to existing manual methods. The goal of the project was to design an efficient and effective machine for automating the valve lapping process in internal combustion engine maintenance.
This document discusses the tribological aspects of automotive engine components. It covers topics such as the introduction to tribology, factors affecting tribological performance, lubrication regimes, importance of engine tribology, tribological approaches for automotive components, frictional losses in components, lubrication regimes in components, and lubricant additive technologies. The key engine components discussed are piston rings, engine bearings, valve train, and cam followers. The document explains the lubrication challenges with these components and potential methods to reduce friction and wear such as surface coatings, oil additives, and design modifications.
IRJET- A Case Study: Cause of Oil Leaks & Eliminating by Optimizing Bearing S...IRJET Journal
This document presents a case study of oil leaks in a 5200 kW BFP motor that has experienced oil leakage issues since commissioning. Upon dismantling the motor, some design deficiencies were identified as potential causes of the leaks. The absence of an anti-migration groove in the motor shaft was found to allow oil to migrate past the labyrinth seal. Additionally, blocked vent openings or mud could prevent proper venting of the inner labyrinth seal. Modifications were made including adding an anti-migration groove and venting the inner labyrinth seal directly to atmosphere. After 500 hours of operation with the modifications, negligible oil was found on windings indicating the oil leakage problem was eliminated by optimizing the bearing seal
Based On Oil Analysis Applicable To Transportation Fleets Using A Viscosimeterijceronline
At the present paper we try to explain the analysis techniques use in engine oil for the lubricating in a maintenance period of a city bus (Mercedes Benz Boxer 40), in a transportation company. This experiment is done to estimate the optimal time for the oil change. using devices such as the rotational viscometer and the atomic absorption spectrometer as they can detect the incipient form when the oil loses its lubricating properties, and therefore cannot protect the mechanical components of diesel engines such these trucks. Timely detection of lost property in the oil, allows us taking preventive plan maintenance for the truck and subsequently these methodologies could be use in a fleet.
IRJET-Design and Analysis Of Shock AbsorberIRJET Journal
This document summarizes the design and analysis of a shock absorber. It discusses:
1) Designing the shock absorber components like the upper mount, bottom mount, oil pad, and rod in CATIA.
2) Conducting structural and modal analysis in ANSYS to determine stresses and displacements using different spring materials - titanium alloy, phosphor bronze, beryllium copper, and spring steel.
3) The results show titanium alloy has the least stress intensity and maximum displacement, making it the best material for the spring. Modifying the design by reducing the spring diameter further lowers stresses and displacements.
This document describes the design and analysis of a shock absorber. It discusses modeling a shock absorber in CATIA V5 and performing structural and modal analyses in ANSYS. Calculations are shown for designing a helical spring for the shock absorber. The shock absorber components are designed, including the upper mount, bottom mount, oil pad, and rod. Different materials are considered for the spring, including spring steel, phosphor bronze, beryllium copper, and titanium alloy. The model is analyzed in ANSYS by applying loads and boundary conditions to determine stresses, displacements, and natural frequencies. The results are compared to select the best material for the spring in the shock absorber.
Similar to Tribological Aspects of Internal Combustion Engine (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.
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%.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
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.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
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.
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.