Research Article | OPEN ACCESS
Thermo-Mechanical Simulation of Brake Disc Frictional Character by Moment of Inertia
Jiguang Chen and Fei Gao
Key Lab of CERC, Dalian Jiaotong University, Liaoning, 116028, China
Research Journal of Applied Sciences, Engineering and Technology 2014 2:227-232
Received: March 12, 2013 | Accepted: April 29, 2013 | Published: January 10, 2014
Abstract
The distribution of temperatures gradient and thermal stress of brake disc has been simulated by FEM code to make brake disc thermal stress more homogenously. In this study, using moment of inertia to simulate the realistic brake process instead of theoretically predefines the train deceleration rate, nonlinear deceleration rate and thermo-mechanical behavior has been revealed. The FEM models build upon LS-DYNA® thermo-mechanical code and contact algorithm. Non-uniform temperature alone disc radial direction was caused by severe friction in short time and the low heat transfer coefficient of its material. Parametric analysis for disc brakes have been carried out by comparison of grouped brake applications conform to UIC code, the main factor cause the high temperature gradient and thermal stress of brake disc is brake force and its initial speed.
Keywords:
Brake disc, moment of inertia, thermo-mechanical simulation,
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Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
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