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Simulation and Analysis of Thermal Fatigue Based on Imperfection Model of Brake Discs
Author(s) -
Zhang Lele,
Yang Qiang,
Weichert D.,
Tan Nanlin
Publication year - 2009
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200910239
Subject(s) - brake , finite element method , disc brake , brake pad , thermal , stress (linguistics) , structural engineering , thermal analysis , coupling (piping) , brake shoe , transient (computer programming) , mechanics , materials science , field (mathematics) , engineering , mechanical engineering , physics , computer science , mathematics , thermodynamics , linguistics , philosophy , pure mathematics , operating system
A non‐linear FEM model of brake discs of high‐speed trains with thermal‐mechanical coupling has been established in ANSYS. The simulation and analysis of 3‐D transient temperature field and stress field of brake discs have been carried out for the braking process. According to typical imperfections of brake discs, some imperfection models of brake discs have been developed and the thermal stresses of different models are obtained through simulation and analysis. By comparing results of different models, the influence of imperfection parameters, including the position, depth and size, is resulted for the thermal resistance of brake discs. (© 2009 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)