Research on the Temperature Law of Brake Disc Based on Friction

This work deals with the analysis of heat generation and dissipation in the disc brake of a car during braking and the following release period by using computer-aided engineering software for three different materials of the rotor disc and brake pad. The objective of this work is to analyze the temperature distribution of rotor disc during operation using COMSOL Multiphysics. The work uses the finite element analysis techniques to calculate and predict the temperature distribution on the brake disc and to identify the critical temperature of the brake rotor disc. Conduction, convection and radiation of heat transfer have been analyzed. The results obtained from the analysis indicates that different material on the same retardation of the car during braking shows different temperature distribution. A comparative study was made between grey cast iron (GCI), Aluminium Metal Matrix Composite (AMMC), Alloy steel materials are used for brake disc and the best material for making brake disc based on the rate of heat dissipation have been suggested.

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

Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology ◽

10.1177/1350650119896456 ◽

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.

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The dependence of the brake disc aerodynamic drag on the rolling stock motion speed

Transportation Research Procedia ◽

10.1016/j.trpro.2021.07.174 ◽

2021 ◽

Vol 55 ◽

pp. 723-730

Author(s):

Juraj Gerlici ◽

Yuliia Fomina ◽

Kateryna Kravchenko

Keyword(s):

Aerodynamic Drag ◽

Rolling Stock ◽

Brake Disc ◽

Motion Speed

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Investigation of Brake disc using Metal Matrix Composites

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/988/1/012119 ◽

2020 ◽

Vol 988 ◽

pp. 012119

Author(s):

S Hari Vignesh ◽

G R Kannan ◽

M P Prabakaran ◽

R Ganesamoorthy

Keyword(s):

Metal Matrix Composites ◽

Metal Matrix ◽

Brake Disc ◽

Matrix Composites

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.199-200.1492 ◽

2011 ◽

Vol 199-200 ◽

pp. 1492-1495 ◽

Cited By ~ 1

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.

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