3D Design and Surface Mapping of Disc Brake Pad for High Speed Train Using FEA

2018 ◽  
Author(s):  
Salah H. R. Ali ◽  
Badr S N Azzam ◽  
Tarek Osman ◽  
Ahmed Moustafa
Keyword(s):  
High Speed ◽  
Disc Brake ◽  
Brake Pad ◽  
High Speed Train ◽  
Surface Mapping ◽  
3D Design

Tribological and dynamical analysis of a brake pad with multiple blocks for a high-speed train

2019 ◽  
Vol 234 (11) ◽  
pp. 1771-1788
Author(s):  
YK Wu ◽  
JL Mo ◽  
B Tang ◽  
JW Xu ◽  
B Huang ◽  
...  
Keyword(s):  
High Speed ◽  
Wear Behavior ◽  
Dynamical Analysis ◽  
Brake Disc ◽  
Brake Pad ◽  
High Speed Train ◽  
Brake Squeal ◽  
Element Analysis ◽  
Single Block ◽  
Middle Ring

In this research, the tribological and dynamical characteristics of a brake pad with multiple blocks are investigated using experimental and numerical methods. A dynamometer with a multiblock brake pad configuration on a brake disc is developed and a series of drag-type tests are conducted to study the brake squeal and wear behavior of a high-speed train brake system. Finite element analysis is performed to derive physical explanations for the observed experimental phenomena. The experimental and numerical results show that the rotational speed and braking force have important influences on the brake squeal; the trends of the multiblock and single-block systems are different. In the multiblock brake pad, the different blocks exhibit significantly different magnitudes of contact stresses and vibration accelerations. The blocks located in the inner and outer rings have higher vibration acceleration amplitudes and stronger vibration energies than the blocks located in the middle ring.

Numerical Modeling and Simulation Analysis of Temperature Field of Disc Brake on Trains

2011 ◽  
Vol 199-200 ◽  
pp. 1492-1495 ◽  
Author(s):  
Guo Shun Wang ◽  
Rong Fu ◽  
Liang Zhao
Keyword(s):  
Temperature Field ◽  
Temperature Gradient ◽  
High Speed ◽  
Large Scale ◽  
Working Condition ◽  
Constant Speed ◽  
Brake Disc ◽  
Disc Brake ◽  
Brake Pad ◽  
Finite Element Software

The simulation calculation on the temperature field of the disc brake system on high-speed trains under the working condition of constant speed at 50Km/h is made. A steady-state calculation model is established according to the actual geometric size of a brake disc and a brake pad, and the analog calculation and simulation on the temperature field of the brake disc and the brake pad by using the large-scale nonlinear finite element software ABAQUS are carried out. The distribution rules of the temperature field of the brake disc and the brake pad under the working condition of constant speed are made known. The surface temperature of the brake disc at friction radius is the highest, with a band distribution for temperature. There exists a temperature flex point in the direction of thickness, of which the thickness occupies 15% of that of the brake disc; due to the small volume of the brake pad, the temperature gradient of the whole brake pad is not sharp, and larger temperature gradient occurs only on the contact surface.

Development of a wheel mounted disc brake for a high-speed train

1998 ◽  
Vol 212 (2) ◽  
pp. 113-121 ◽  
Author(s):  
M Tirovic
Keyword(s):  
Finite Element Method ◽  
Thermal Effects ◽  
High Speed ◽  
Development Time ◽  
Disc Brake ◽  
High Speed Train ◽  
The Finite Element Method ◽  
Detailed Design ◽  
Successful Design ◽  
Theoretical Results

This paper describes the development of a wheel mounted disc brake for the power car of a high-speed train. The disc design consists of two rings bolted on to the wheel hub, one either side of the wheel. The finite element method was used extensively from the very beginning of the design process. This considerably reduced development time and enabled the successful design of a disc for an extremely severe duty. Modelling of bulk thermal effects was found to be most effective for shape optimization and prediction of global disc behaviour, with more sophisticated analyses required to determine more detailed design limits. Results from dynamometer tests and vehicle trials gave good correlation with theoretical results and proved the design suitability for the required duty.

The Braking Behaviors of Cu-Based Metallic Brake Pad for High-Speed Train Under Different Initial Braking Speed

2017 ◽  
Vol 65 (4) ◽  
Author(s):  
Tao Peng ◽  
Qingzhi Yan ◽  
Gen Li ◽  
Xiaolu Zhang ◽  
Zefeng Wen ◽  
...  
Keyword(s):  
High Speed ◽  
Brake Pad ◽  
High Speed Train

Wear mechanism of Cu-based brake pad for high-speed train braking at speed of 380 km/h

2020 ◽  
Vol 150 ◽  
pp. 106357 ◽  
Author(s):  
Jin-Kun Xiao ◽  
Shu-Xian Xiao ◽  
Juan Chen ◽  
Chao Zhang
Keyword(s):  
Wear Mechanism ◽  
High Speed ◽  
Brake Pad ◽  
High Speed Train
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