scholarly journals Weight Reduction and Structural Validation of Four Wheeler Disc Brake with Various Materials

2019 ◽  
Vol 9 (2) ◽  
pp. 2378-2382
Keyword(s):  
Heat Dissipation ◽  
Low Cost ◽  
Disc Brake ◽  
Performance Study ◽  
Element Analysis ◽  
Braking Performance ◽  
Steel Cast ◽  
And Performance ◽  
Braking Process ◽  
Structural Validation

Safety side in engineering has been thought of as variety one priority in development of latest vehicle. Each single system has been studied and developed so as to satisfy safety demand. Instead of having bags, sensible suspension systems, sensible handling and safe cornering, there’s one of most crucial system within the vehicle that is brake systems. Without brake within the vehicle can place a traveller in unsafe position. Therefore, it’s a requirement for all vehicles to own correct brake. Due to vital system within the vehicle, several of researchers have conducted a study on brake and its entire part. In this project, the author has conducted a study on aerated and traditional disk brake of traditional traveller vehicle with full load of capability. The brake must be sufficiently designed in order to dissipate the heat generated from the braking process adequately for safe braking system performance. The aim of our project is to design and investigate the braking performance of the low cost passenger car with various materials like stainless steel, cast iron and aluminium alloy. The disc brake structure is changed with cross-drilled holes on the rotor of the disc for more heat dissipation using CATIA V5 R21 and performance study in term of its Structural property was determined using ANSYS finite element analysis software

Heat Dissipation and Temperature Distribution of Brake Liner Using Steady State Analysis

2012 ◽  
Vol 249-250 ◽  
pp. 712-717
Author(s):  
M.P. Natarajan ◽  
B. Rajmohan
Keyword(s):  
Heat Dissipation ◽  
Friction Material ◽  
Automotive Application ◽  
Element Analysis ◽  
Slowing Down ◽  
Drum Brake ◽  
The Coefficient Of Friction ◽  
Machine Elements ◽  
Braking Process ◽  
Good Agreement

Brakes are machine elements that absorb kinetic energy in the process of slowing down or stopping a moving part. Brake capacity depends upon the unit pressure between the braking surfaces, the coefficient of friction, and the ability of the brake to dissipate heat equivalent to the energy being absorbed. In braking system, drum brake is used mostly for automotive application. During the braking process, the forces and pressures in a drum brake are difficult to determine because of the manner in which the shoe contacts the drum. Finite Element analysis has been used to predict interface temperatures and heat flows and the results have been compared with experimental measurements made using fine thermocouples. Good agreement has been achieved, showing that the proportion of heat which flows into the friction material varies with time and temperature.

Design and Analysis of Bicycle Helmet with Impaxx Foam Liner

2013 ◽  
Vol 706-708 ◽  
pp. 1778-1781
Author(s):  
Tso Liang Teng ◽  
Cho Chung Liang ◽  
Chien Jong Shih ◽  
Van Hai Nguyen
Keyword(s):  
Heat Dissipation ◽  
Low Cost ◽  
Experimental Tests ◽  
Absorption Test ◽  
Bicycle Helmet ◽  
Shock Absorption ◽  
Liner Material ◽  
Bicycle Helmets ◽  
And Performance ◽  
Energy Absorbing

Currently, expended polystyrene (EPS) are widely used as liner material in bicycle helmet. Due to its characteristics is excellent performance, lightweight, low cost of manufacturing. However, EPS has some disadvantage as difficulty to optimize energy absorbing in different areas of head and inferior effect of heat dissipation and a brittle characteristic. This study focuses on to find a replacement material for EPS foam to improve liner of bicycle helmet. Impaxx energy absorbing (EA) foams present strong potential in overcoming such problems of EPS foam. To make certain that all bicycle helmets reach efficiency, the helmets are required to pass shock absorption test of EN1078 standard. This study performs finite element analyses of helmet impact tests using LS-DYNA software. Simulation results indicate Impaxx foams are suitable for shock absorption test according to the EN1078 standard. Therefore these results encouraged the authors to extend the manufacturing work to cover the creating helmet design and performance experimental tests.

scholarly journals Finite element analysis and performance study of switched reluctance generator

2017 ◽  
Author(s):  
Qianhan Zhang ◽  
Yingjun Guo ◽  
Qi Xu ◽  
Xiaoying Yu ◽  
Yajie Guo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Performance Study ◽  
Element Analysis ◽  
Switched Reluctance ◽  
And Performance

Finite element analysis of railway disc brake considering structural, thermal, and wear phenomena

2011 ◽  
Vol 226 (7) ◽  
pp. 1845-1860 ◽  
Author(s):  
Alexander Olshevskiy ◽  
Alexey Olshevskiy ◽  
Oleg Berdnikov ◽  
Chang-Wan Kim
Keyword(s):  
Finite Element ◽  
Mutual Influence ◽  
Disc Brake ◽  
Finite Element Models ◽  
Element Analysis ◽  
Factors Affecting ◽  
Braking System ◽  
Disc Brakes ◽  
Braking Process ◽  
Process Calculation

The purpose of this research is to identify the thermomechanical factors to be considered in simulation of the braking process, calculation of the distribution of the contact pressure, and temperature and obtain wear patterns for the disc brake system in operation. The factors affecting the temperature distribution and stress–strain state of disc brakes in railway vehicles are analyzed. The mutual influence of the thermal problem and contact problem was considered. The results of the numerical simulations for the finite element models can be used in optimizing the disc brake design in order to reduce wear and provide higher reliability of the braking system.

Analysis of Vane Hydraulic Damp Dynamic Seal Mechanism and Performance Influencing Factors

2012 ◽  
Vol 530 ◽  
pp. 130-133 ◽  
Author(s):  
Wen Rui Wang ◽  
Xiao Qiang Yan ◽  
Zhi Hui Sun ◽  
Qi Jiang
Keyword(s):  
Design Optimization ◽  
Nonlinear Material ◽  
Performance Study ◽  
Element Analysis ◽  
Theoretical Simulation ◽  
Seal Design ◽  
Sealing Performance ◽  
Dynamic Seal ◽  
And Performance ◽  
Optimization And Performance

In this paper, the force, deformation and other factors of vane hydraulic damp dynamic seal are researched, which is used of theoretical, simulation about the lip seals sealing damping performance factors. In order to improve sealing performance vane hydraulic damp life, dynamic lip seal design, optimization and performance study is to provide the basis for the theory and engineering applications. The factors influencing sealing performance are considered, such as initial compressibility, sealing sping stiffness. The finite element analysis method can be effectively used to solve nonlinear material and sealing failure problem for the seal design, optimization and performance analysis, which provide a new approach and theoretical guidance to the rubber seal research.

scholarly journals Development and Performance Analysis of a Low-Cost Hydrogen Generation System Using Locally Available Materials

2020 ◽  
Vol 68 (1) ◽  
pp. 49-56
Author(s):  
Gour Chand Mazumder ◽  
SM Nasif Shams ◽  
Md Habibur Rahman ◽  
Saiful Huque
Keyword(s):  
Hydrogen Generation ◽  
Low Cost ◽  
Small Scale ◽  
Bipolar Electrode ◽  
Performance Study ◽  
Outlet Port ◽  
Energy Applications ◽  
In Series ◽  
And Performance ◽  
The Cost

In this paper, a low-cost water electrolyzer is developed and its performance study is presented. Locally found materials are used to develop the electrolyzer. The electrolyzer has two cells connected in parallel and bipolar electrode configuration. In common, different cells are connected in series but for this electrolyzer parallel connection has been tested. A very thin polymer, Nylon-140 has been used as separator membranes for this electrolyzer. In separator membrane assembly, the designed geometry creates two separate gas channels internally which enables the direct collection of hydrogen and oxygen gas from the designated outlet port of the electrolyzer. The geometry excludes the need of external tubing into each cell-compartments to collect hydrogen and oxygen separately. The developed electrolyzer is found to be 42% efficient with its highest production rate of 227.27 mL/min. The purity of hydrogen is found to be more than 92% and justified with the burn test. The cost is 20 times less than the commercial electrolyzers. The development method and scheme can be helpful to popularize the small scale use of hydrogen in Bangladesh for various renewable energy applications. Dhaka Univ. J. Sci. 68(1): 49-56, 2020 (January)

A Design of Ring-Shaped LED Driving Circuit Used in Optical Instruments Illuminating System

2012 ◽  
Vol 500 ◽  
pp. 269-272
Author(s):  
Liang Bao Tang ◽  
Hai Ying Zhou ◽  
Zhe Wei ◽  
Xiang Yan He
Keyword(s):  
Light Intensity ◽  
Heat Dissipation ◽  
Small Volume ◽  
Low Cost ◽  
Constant Current ◽  
Optical Instrument ◽  
Optical Instruments ◽  
And Performance ◽  
Driving Circuit ◽  
Illuminating System

According to the requirement of optical instrument illuminating system and performance characteristic of Ring-Shaped LED, a constant current circuit based on PT4115 chip is designed to drive Ring-Shaped LED. It is proved that not only the LED′s light intensity can be conditioned by PWM, but also its heat dissipation can be solved effectively. Moreover, compared with traditional halogen lamps, it has the advantage of the small volume and low-cost. Therefore, it can be widely applied to optical instrument illuminating system. This paper is applies innovative. Ring-Shaped LED of base on Amega 16 and PT4115 is applied for optical instrument illuminating system.

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