This document presents a presentation on the design and analysis of a planetary gear train. The presentation discusses planetary gear trains and their components such as planet gears, sun gears, and ring gears. It outlines the objectives to perform dynamic system modeling and dimensional modification of gears in ANSYS software. It describes the methodology used, which involves designing the epicyclic gear train model in Catia V5 and analyzing loads on gears. Software tools like ANSYS, Catia V5, and MATLAB are used for modeling, load analysis, and optimization. The presentation concludes by reviewing several research papers on topics like load analysis, reliability prediction, and dynamic behavior of planetary gearboxes.
A two-stage closed-form planetary gear train dynamic model is presented with 3 sentences:
The model considers translational and rotational displacements of all components in both stages of the gear train. Natural frequencies and vibration modes are determined by formulating the dynamic equations into a matrix form and calculating the eigenvalues and eigenvectors. Parameter effects like planet number and coupling stiffness on natural modes are analyzed to better understand the vibration characteristics.
This document provides an overview of gears and gear trains. It defines gears as toothed wheels that transmit motion between two shafts, and gear trains as combinations of two or more meshing gears. The document then discusses the types of gears based on axis position and peripheral velocity, as well as the materials and manufacturing processes used to make gears. Finally, applications of gear trains are described, including their use in differentials to allow wheels to rotate at different speeds.
Seminar report on axial field electrical machineSaurabh Nandy
This document discusses various types of axial-field electric machines. It begins by introducing axial-field machines and comparing them to conventional radial-field machines. It then describes 10 main configurations of axial-field machines, including the Faraday disk, printed circuit board motors, axial-field induction motors, and torus machines. Applications mentioned include auxiliary power units, wind power generators, electric vehicles, and pumps. The document concludes that axial-field machines can achieve high power-to-weight ratios and may be useful in applications where their characteristics provide advantages over conventional machines.
An epicyclic or planetary gear system consists of one or more planet gears that revolve around a central sun gear. The planet gears are mounted on a carrier that can also rotate relative to the sun gear. An outer ring gear meshes with the planet gears. Epicyclic gearing allows for large gear ratios in a small space through the planetary motion of gears revolving and rotating simultaneously. Applications include marine gearboxes, electric screwdrivers, lathe back gears, hoists, pulley blocks, wristwatches, bicycle transmissions, and automobile transmissions.
Design of two stage planetary gear train for high reduction ratioeSAT Journals
Abstract Planetary Gear Trains are extensively used for the power transmission and are the most critical component. Planetary gearboxes are used frequently to match the inertias, lower the motor speed, boost the torque, and at the same time provide a sturdy mechanical interface for pulleys, cams, drums and other mechanical components. This paper presents the advantages of planetary gear systems over other, consideration to be given while determining the reduction ratios of gear box, minimum and maximum reductions per stage of planetary gear pairs. Also the case study to determine the reduction ratio of two stage gear box is discussed. The comparison of planetary gear system over helical gears systems is done on the basis of volume, weight and torque density Keywords: Planetary Gears, Gear train, IS 4460, Torque density.
This document presents a presentation on the design and analysis of a planetary gear train. The presentation discusses planetary gear trains and their components such as planet gears, sun gears, and ring gears. It outlines the objectives to perform dynamic system modeling and dimensional modification of gears in ANSYS software. It describes the methodology used, which involves designing the epicyclic gear train model in Catia V5 and analyzing loads on gears. Software tools like ANSYS, Catia V5, and MATLAB are used for modeling, load analysis, and optimization. The presentation concludes by reviewing several research papers on topics like load analysis, reliability prediction, and dynamic behavior of planetary gearboxes.
A two-stage closed-form planetary gear train dynamic model is presented with 3 sentences:
The model considers translational and rotational displacements of all components in both stages of the gear train. Natural frequencies and vibration modes are determined by formulating the dynamic equations into a matrix form and calculating the eigenvalues and eigenvectors. Parameter effects like planet number and coupling stiffness on natural modes are analyzed to better understand the vibration characteristics.
This document provides an overview of gears and gear trains. It defines gears as toothed wheels that transmit motion between two shafts, and gear trains as combinations of two or more meshing gears. The document then discusses the types of gears based on axis position and peripheral velocity, as well as the materials and manufacturing processes used to make gears. Finally, applications of gear trains are described, including their use in differentials to allow wheels to rotate at different speeds.
Seminar report on axial field electrical machineSaurabh Nandy
This document discusses various types of axial-field electric machines. It begins by introducing axial-field machines and comparing them to conventional radial-field machines. It then describes 10 main configurations of axial-field machines, including the Faraday disk, printed circuit board motors, axial-field induction motors, and torus machines. Applications mentioned include auxiliary power units, wind power generators, electric vehicles, and pumps. The document concludes that axial-field machines can achieve high power-to-weight ratios and may be useful in applications where their characteristics provide advantages over conventional machines.
An epicyclic or planetary gear system consists of one or more planet gears that revolve around a central sun gear. The planet gears are mounted on a carrier that can also rotate relative to the sun gear. An outer ring gear meshes with the planet gears. Epicyclic gearing allows for large gear ratios in a small space through the planetary motion of gears revolving and rotating simultaneously. Applications include marine gearboxes, electric screwdrivers, lathe back gears, hoists, pulley blocks, wristwatches, bicycle transmissions, and automobile transmissions.
Design of two stage planetary gear train for high reduction ratioeSAT Journals
Abstract Planetary Gear Trains are extensively used for the power transmission and are the most critical component. Planetary gearboxes are used frequently to match the inertias, lower the motor speed, boost the torque, and at the same time provide a sturdy mechanical interface for pulleys, cams, drums and other mechanical components. This paper presents the advantages of planetary gear systems over other, consideration to be given while determining the reduction ratios of gear box, minimum and maximum reductions per stage of planetary gear pairs. Also the case study to determine the reduction ratio of two stage gear box is discussed. The comparison of planetary gear system over helical gears systems is done on the basis of volume, weight and torque density Keywords: Planetary Gears, Gear train, IS 4460, Torque density.
DESIGN AND FABRICATION OF PLANETARY DRIVE MAGNET PEDAL POWER HUB-DYNAMOmsejjournal
This paper presents a low speed permanent magnetic based generator which is suitable for supplying
generating power from bicycle motion and application in providing energy for bicycle front and rear lights
or electronics devices.The dynamo have a hub axel, a hub housing rotatable mounted around the hub axel
with bearing, a planetary drive that increases the rotational speed of the permanent magnet, and the
power generating mechanism with coil fitted to hub axel that has connected to the output connector. In
such a hub dynamo, the magnet rotates faster than the bicycle wheel so that power output is high even at
the normal bicycle speeds.
This document provides an overview of a student project to design and implement solar cells on a model aircraft. The goal is to create an aircraft that can fly longer using solar cells as an energy source compared to the original design. Key steps included calculating voltage requirements, arranging solar cells in series across the wingspan, and testing the voltage, current and flight duration compared to the original design. Testing showed the solar cells could generate over 10 volts which is enough to power the plane. However, some cells were cracked, limiting performance. The motor drew most efficiently at 7.5 amps. The project aims to gain insights that could inform future solar aircraft without building a full-scale prototype.
This document provides an overview of axial-field electrical machines. It discusses various types of axial-field machines including single stator/rotor designs, central stator designs, and multi-disc designs. It also compares axial-field machines to conventional radial-field machines and summarizes some of their advantages such as higher power-to-weight ratios and ability for internal cooling via the rotating discs. Several specific axial-field machine designs are described in detail such as Faraday disks, printed circuit motors, and Torus machines. A wide range of applications are listed that could benefit from the special features of axial-field machines.
IRJET- Review on Rover with Rocker-Bogie Linkage Mounted with Ultrasonic Sens...IRJET Journal
This document describes a rover designed with a rocker-bogie linkage suspension system and equipped with an ultrasonic sensor and Bluetooth module powered by solar energy. The rocker-bogie system, inspired by NASA designs, allows the six-wheeled rover to traverse uneven terrain by keeping all wheels in contact with the ground. An Arduino board controls the motors and ultrasonic sensor for navigation via commands from a Bluetooth module. The goal is to create an affordable rover capable of moving across multiple terrains using an efficient suspension system.
The document describes the design and specification of a pair of bevel gears. It outlines a problem to transmit 5 hp at 900 rpm through bevel gears at a 90 degree angle with a pinion diameter of 3.333 inches. It then shows the calculations to determine the key specifications of the gears, such as pitch, face, number of teeth, material, and heat treatment. The calculations are based on factors like torque, velocity, dynamic load, wear load, reliability, and strength. Based on the calculations, steel is selected as the material with a surface compressive strength of 135ksi and heat treatment is also determined.
The document discusses different types of gears used in mechanical systems. It describes gears according to their positioning, such as parallel axes (spur and helical gears), intersecting axes (bevel gears), and non-intersecting axes (worm gears). It also categorizes gears by their peripheral velocity as low, medium, or high velocity. Examples are given of uses for different gear types in applications like cars, machinery, and other mechanical systems. Diagrams are included to illustrate the different gear configurations.
The document discusses the objectives and content of the course ME8492 - Kinematics of Machinery. The course aims to teach students about basic components and layout of linkages in machines, and analyzing the motion, velocity and acceleration of linkages. It covers topics like basics of mechanisms, kinematics of linkages, cam mechanisms, gears and gear trains, and friction in machine elements. The course contains 5 units, with each unit covering important concepts and their applications related to that topic over 9 class periods. Upon completing the course, students will be able to discuss basics of mechanisms, calculate velocities and accelerations, develop CAM profiles, solve problems on gears and gear trains, and examine friction in machine elements.
This document summarizes a study that evaluates the design of a connecting rod using finite element analysis. It begins by introducing the connecting rod component and its function in an internal combustion engine. It then reviews previous related studies and identifies a gap in analyzing stresses and fatigue life of connecting rods in light vehicle engines. The objectives are defined as evaluating the stresses and fatigue failure of an existing connecting rod design, creating a CAD model, conducting finite element analysis, testing on a universal testing machine, analyzing alternative designs, and recommending a best design. Dimensions and material properties of the existing connecting rod are provided. Mathematical calculations of forces and stresses on the connecting rod are shown. The methodology involves creating a finite element model and conducting finite element analysis to
This document summarizes a research paper that designed and analyzed a solar-powered tricycle for disabled persons. The tricycle uses a solar panel to charge a battery, which then powers a DC motor to propel the tricycle. The design aims to reduce the physical effort required to drive the tricycle, with a top speed of 30 km/hr. The main components are the chassis, wheels, body, seat, solar panel mounting frame, charge controller, battery, motor, and braking system. The solar panel charges the battery, which then powers the motor via a charge controller to help disabled people move more easily.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document summarizes a research paper that proposes a new vibration propulsion system for powering a small mobile robot. The system uses two counter-rotating eccentric masses, similar to the Dean drive, to excite an oscillating inner frame attached to an outer frame by springs. Wheels on the outer frame can be driven forward due to inertial and friction forces generated by the oscillating system. The document presents the dynamic model of the system and derives the governing differential equation. Experimental testing showed the system could successfully propel a robot vehicle and generate a maximum towing force of 8.5N while weighing 25N itself. Further improvements to increase propulsion are recommended.
An automobile differential couples the drive shaft to the rear driving wheels. It allows the outer wheel to rotate faster than the inner wheel during a turn by splitting torque equally between the wheels. A differential consists of one input and two outputs for the two driving wheels. It allows the wheels to rotate at different speeds to accommodate turns while keeping the average rotational input equal to the drive shaft. Differentials are commonly used in automobiles but also have non-automotive applications like performing analog arithmetic or controlling gun aim. There are different types of differentials like epicyclic, spur gear, and bevel gear differentials.
The document discusses different types of gears used for power transmission, including their definitions, components, and applications. It describes spur gears, helical gears, herringbone gears, rack and pinion gears, bevel gears, worm gears, and different types of gear trains. The key points are that gears transmit rotational force from one shaft to another, common types include spur, helical, bevel and worm gears, and gear trains can reduce speed while increasing torque using multiple meshing gears.
ME6601 design of transmission systems - important 2 marksMohan2405
This document provides information about ME6601 - Design of Transmission Systems. It covers topics like types of power drives, mechanical drives, belt drives, pulleys, belts, rope drives, chain drives, and gear drives. Some key points:
- The main types of power drives are mechanical, hydraulic, pneumatic, and electrical drives. Mechanical drives can be further classified based on power transmission method and center distance between power shafts.
- Belt drives transmit power through contact forces and are suitable for long distances. They require a large space but have a smooth, flexible operation. Gear drives can transmit high power and have a compact layout.
- Belts are made of various materials and come in types
Study of Different Parameters on the Chassis Space Frame For the Sports Car b...IOSR Journals
The concept of Finite Element Analysis of a chassis space frame has been highlighted in this project.
The topic has constrained the study of the chassis space frame. Complex assemblies are to be avoided, for
sports car. The model of the chassis space frame is built using CATIA V5 and then imported to ANSYS CLASSIC
11.0 to find its finite element module. To perform a torsion and Bending Test on the computational prototype
chassis to determine its torsional stiffness. To incorporate a design improvement study and note the effects on
the global torsional stiffness of the chassis. The stress ,strength and degrees of freedom of the chassis will be
investigated. The body shape is fixed and therefore the overall external shape of the chassis must not be altered.
The engine bay must remain as open as possible to allow a variety of engines to be fitted
Design and Finite element analysis for static and dynamic behaviour of compos...Salim Malik
This document discusses the design and finite element analysis of composite drive shafts. It begins with an introduction to drive shafts, their types, and components like universal joints and constant velocity joints. It then discusses composite materials, their advantages over other materials, and common types. It also covers failure theories like the von-Mises stress theory. The document reviews past literature on composite drive shaft design and analysis. It examines factors of safety and concludes with discussing the objectives of analyzing the static and dynamic behavior of composite drive shafts.
Solar rickshaw by malik computers dauralaARJUN MALIK
This document describes a project to design a solar-powered rickshaw that can be manually driven or motor-driven using solar energy. The objectives are to reduce the effort of rickshaw pullers, utilize abundant solar power, and reduce fossil fuel use. Key aspects discussed include selecting appropriate solar cells, batteries, motors, and designing the mechanical system and electrical circuits. Calculations are provided on the power requirements and output of the solar cells to assist the rickshaw puller up inclines. Future work may focus on increasing efficiency, reducing weight, using regenerative braking, and adding sensors for control and monitoring.
Analysis and Estimation of Stiffness of Outer Race of Aircraft Bearingspaperpublications3
The document analyzes and estimates the stiffness of the outer race of aircraft bearings. It describes how a bearing outer race was modeled and analyzed in CREO and ANSYS software to determine its deflection and stiffness when subjected to radial loads. The results found a stiffness value of 769.23 kN/mm which was verified through theoretical calculations to be within acceptable limits for aircraft bearing materials.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
Más contenido relacionado
Similar a Planetary Gears of automatic transmission of vehicle
DESIGN AND FABRICATION OF PLANETARY DRIVE MAGNET PEDAL POWER HUB-DYNAMOmsejjournal
This paper presents a low speed permanent magnetic based generator which is suitable for supplying
generating power from bicycle motion and application in providing energy for bicycle front and rear lights
or electronics devices.The dynamo have a hub axel, a hub housing rotatable mounted around the hub axel
with bearing, a planetary drive that increases the rotational speed of the permanent magnet, and the
power generating mechanism with coil fitted to hub axel that has connected to the output connector. In
such a hub dynamo, the magnet rotates faster than the bicycle wheel so that power output is high even at
the normal bicycle speeds.
This document provides an overview of a student project to design and implement solar cells on a model aircraft. The goal is to create an aircraft that can fly longer using solar cells as an energy source compared to the original design. Key steps included calculating voltage requirements, arranging solar cells in series across the wingspan, and testing the voltage, current and flight duration compared to the original design. Testing showed the solar cells could generate over 10 volts which is enough to power the plane. However, some cells were cracked, limiting performance. The motor drew most efficiently at 7.5 amps. The project aims to gain insights that could inform future solar aircraft without building a full-scale prototype.
This document provides an overview of axial-field electrical machines. It discusses various types of axial-field machines including single stator/rotor designs, central stator designs, and multi-disc designs. It also compares axial-field machines to conventional radial-field machines and summarizes some of their advantages such as higher power-to-weight ratios and ability for internal cooling via the rotating discs. Several specific axial-field machine designs are described in detail such as Faraday disks, printed circuit motors, and Torus machines. A wide range of applications are listed that could benefit from the special features of axial-field machines.
IRJET- Review on Rover with Rocker-Bogie Linkage Mounted with Ultrasonic Sens...IRJET Journal
This document describes a rover designed with a rocker-bogie linkage suspension system and equipped with an ultrasonic sensor and Bluetooth module powered by solar energy. The rocker-bogie system, inspired by NASA designs, allows the six-wheeled rover to traverse uneven terrain by keeping all wheels in contact with the ground. An Arduino board controls the motors and ultrasonic sensor for navigation via commands from a Bluetooth module. The goal is to create an affordable rover capable of moving across multiple terrains using an efficient suspension system.
The document describes the design and specification of a pair of bevel gears. It outlines a problem to transmit 5 hp at 900 rpm through bevel gears at a 90 degree angle with a pinion diameter of 3.333 inches. It then shows the calculations to determine the key specifications of the gears, such as pitch, face, number of teeth, material, and heat treatment. The calculations are based on factors like torque, velocity, dynamic load, wear load, reliability, and strength. Based on the calculations, steel is selected as the material with a surface compressive strength of 135ksi and heat treatment is also determined.
The document discusses different types of gears used in mechanical systems. It describes gears according to their positioning, such as parallel axes (spur and helical gears), intersecting axes (bevel gears), and non-intersecting axes (worm gears). It also categorizes gears by their peripheral velocity as low, medium, or high velocity. Examples are given of uses for different gear types in applications like cars, machinery, and other mechanical systems. Diagrams are included to illustrate the different gear configurations.
The document discusses the objectives and content of the course ME8492 - Kinematics of Machinery. The course aims to teach students about basic components and layout of linkages in machines, and analyzing the motion, velocity and acceleration of linkages. It covers topics like basics of mechanisms, kinematics of linkages, cam mechanisms, gears and gear trains, and friction in machine elements. The course contains 5 units, with each unit covering important concepts and their applications related to that topic over 9 class periods. Upon completing the course, students will be able to discuss basics of mechanisms, calculate velocities and accelerations, develop CAM profiles, solve problems on gears and gear trains, and examine friction in machine elements.
This document summarizes a study that evaluates the design of a connecting rod using finite element analysis. It begins by introducing the connecting rod component and its function in an internal combustion engine. It then reviews previous related studies and identifies a gap in analyzing stresses and fatigue life of connecting rods in light vehicle engines. The objectives are defined as evaluating the stresses and fatigue failure of an existing connecting rod design, creating a CAD model, conducting finite element analysis, testing on a universal testing machine, analyzing alternative designs, and recommending a best design. Dimensions and material properties of the existing connecting rod are provided. Mathematical calculations of forces and stresses on the connecting rod are shown. The methodology involves creating a finite element model and conducting finite element analysis to
This document summarizes a research paper that designed and analyzed a solar-powered tricycle for disabled persons. The tricycle uses a solar panel to charge a battery, which then powers a DC motor to propel the tricycle. The design aims to reduce the physical effort required to drive the tricycle, with a top speed of 30 km/hr. The main components are the chassis, wheels, body, seat, solar panel mounting frame, charge controller, battery, motor, and braking system. The solar panel charges the battery, which then powers the motor via a charge controller to help disabled people move more easily.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document summarizes a research paper that proposes a new vibration propulsion system for powering a small mobile robot. The system uses two counter-rotating eccentric masses, similar to the Dean drive, to excite an oscillating inner frame attached to an outer frame by springs. Wheels on the outer frame can be driven forward due to inertial and friction forces generated by the oscillating system. The document presents the dynamic model of the system and derives the governing differential equation. Experimental testing showed the system could successfully propel a robot vehicle and generate a maximum towing force of 8.5N while weighing 25N itself. Further improvements to increase propulsion are recommended.
An automobile differential couples the drive shaft to the rear driving wheels. It allows the outer wheel to rotate faster than the inner wheel during a turn by splitting torque equally between the wheels. A differential consists of one input and two outputs for the two driving wheels. It allows the wheels to rotate at different speeds to accommodate turns while keeping the average rotational input equal to the drive shaft. Differentials are commonly used in automobiles but also have non-automotive applications like performing analog arithmetic or controlling gun aim. There are different types of differentials like epicyclic, spur gear, and bevel gear differentials.
The document discusses different types of gears used for power transmission, including their definitions, components, and applications. It describes spur gears, helical gears, herringbone gears, rack and pinion gears, bevel gears, worm gears, and different types of gear trains. The key points are that gears transmit rotational force from one shaft to another, common types include spur, helical, bevel and worm gears, and gear trains can reduce speed while increasing torque using multiple meshing gears.
ME6601 design of transmission systems - important 2 marksMohan2405
This document provides information about ME6601 - Design of Transmission Systems. It covers topics like types of power drives, mechanical drives, belt drives, pulleys, belts, rope drives, chain drives, and gear drives. Some key points:
- The main types of power drives are mechanical, hydraulic, pneumatic, and electrical drives. Mechanical drives can be further classified based on power transmission method and center distance between power shafts.
- Belt drives transmit power through contact forces and are suitable for long distances. They require a large space but have a smooth, flexible operation. Gear drives can transmit high power and have a compact layout.
- Belts are made of various materials and come in types
Study of Different Parameters on the Chassis Space Frame For the Sports Car b...IOSR Journals
The concept of Finite Element Analysis of a chassis space frame has been highlighted in this project.
The topic has constrained the study of the chassis space frame. Complex assemblies are to be avoided, for
sports car. The model of the chassis space frame is built using CATIA V5 and then imported to ANSYS CLASSIC
11.0 to find its finite element module. To perform a torsion and Bending Test on the computational prototype
chassis to determine its torsional stiffness. To incorporate a design improvement study and note the effects on
the global torsional stiffness of the chassis. The stress ,strength and degrees of freedom of the chassis will be
investigated. The body shape is fixed and therefore the overall external shape of the chassis must not be altered.
The engine bay must remain as open as possible to allow a variety of engines to be fitted
Design and Finite element analysis for static and dynamic behaviour of compos...Salim Malik
This document discusses the design and finite element analysis of composite drive shafts. It begins with an introduction to drive shafts, their types, and components like universal joints and constant velocity joints. It then discusses composite materials, their advantages over other materials, and common types. It also covers failure theories like the von-Mises stress theory. The document reviews past literature on composite drive shaft design and analysis. It examines factors of safety and concludes with discussing the objectives of analyzing the static and dynamic behavior of composite drive shafts.
Solar rickshaw by malik computers dauralaARJUN MALIK
This document describes a project to design a solar-powered rickshaw that can be manually driven or motor-driven using solar energy. The objectives are to reduce the effort of rickshaw pullers, utilize abundant solar power, and reduce fossil fuel use. Key aspects discussed include selecting appropriate solar cells, batteries, motors, and designing the mechanical system and electrical circuits. Calculations are provided on the power requirements and output of the solar cells to assist the rickshaw puller up inclines. Future work may focus on increasing efficiency, reducing weight, using regenerative braking, and adding sensors for control and monitoring.
Analysis and Estimation of Stiffness of Outer Race of Aircraft Bearingspaperpublications3
The document analyzes and estimates the stiffness of the outer race of aircraft bearings. It describes how a bearing outer race was modeled and analyzed in CREO and ANSYS software to determine its deflection and stiffness when subjected to radial loads. The results found a stiffness value of 769.23 kN/mm which was verified through theoretical calculations to be within acceptable limits for aircraft bearing materials.
Similar a Planetary Gears of automatic transmission of vehicle (20)
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This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
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.
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.
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The CBC machine is a common diagnostic tool used by doctors to measure a patient's red blood cell count, white blood cell count and platelet count. The machine uses a small sample of the patient's blood, which is then placed into special tubes and analyzed. The results of the analysis are then displayed on a screen for the doctor to review. The CBC machine is an important tool for diagnosing various conditions, such as anemia, infection and leukemia. It can also help to monitor a patient's response to treatment.
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The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
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What is artificial intelligence? Artificial intelligence is the ability of a computer or computer-controlled robot to perform tasks that are commonly associated with the intellectual processes characteristic of humans, such as the ability to reason.
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Planetary Gears of automatic transmission of vehicle
1. Planetary Gears
References: 1) Dudley, Darle. “Gear Handbook: The Design, Manufacture, and Application of Gears.” Pgs. 3-14/3-20, The McGraw-Hill Book Company, Inc. 1962.
2) Lynwander, Peter. “Gear Drive Systems: Design and Apllication.” Pgs. 293-323. Marcel Dekker, Inc., 1983.
3) Parmley, Robert O. “Illustrated Sourcebook of Mechanical Components” pgs. 1-22/1-31, The McGraw-Hill Book Company, Inc.
Planetary gear trains are one of the main subdivisions of the simple epicyclic gear train family. The epicyclic gear
train family in general has a central “sun” gear which meshes with and is surrounded by planet gears. The
outermost gear, the ring gear, meshes with each of the planet gears. The planet gears are held to a cage or carrier
that fixes the planets in there orbit relative to each other.
There are five distinct advantages to using an epicyclic gear train as opposed to a single load path parallel gear
train:
1) Because they share load between several gear meshes, epicyclic trains take up less space and
have a lighter weight.
2) Because they share load between several meshes, epicyclic trains have smaller and stiffer
components which lead to reduced noise and vibration while increasing efficiency.
3) The input and output shafts of epicyclic trains are concentric so no bending moments or torques
are created from radial forces that develop from the change of the force’s line of action.
4) The input and output shafts of epicyclic trains are concentric so driver and driven equipment can
be mounted in line, providing additional space savings.
5) The reduced size of epicyclic components often offsets the cost of additional parts, especially
when manufacturing many gear trains. In very high horsepower units the components of parallel
shaft designs become so bulky that epicyclic trains gain a further economical advantage.²
As with all design choices, there are disadvantages to epicyclic gear trains:
1) Complexity.
2) Assembly of gear trains is limited to specific teeth per gear ratios.
3) Efficiency calculations are difficult.
4) Driver and driven equipment must be in line to avoid additional gearing.
The three main types of simple epicyclic gears are the planetary, the star, and the solar. These three types differ
only in arrangement.
Arrangement of epicyclic train
Fixed
Member
Input
Member
Output
Member
Over-all
Gear ratio
Range of ratios
normally used
Planetary……………………… Ring Sun Carrier (Nr/Ns)+1 3:1-12:1
Star……………………………. Carrier Sun Ring (Nr/Ns) 2:1-11:1
Solar…………………………… Sun Ring Carrier (Ns/Nr)+1 1.2:1-1.7:1
Ns=number of sun teeth, Np=number of planet teeth, Nr=Number of ring teeth (per gear)
Table re-created from "Gear Handbook" By: Darle W. Dudley, McGraw-Hill books, pg. 3-15, 1962
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