Analysis of Transient Temperature Field and Thermal Stress Field of Brake Disc of High-speed EMU

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Analysis of Transient Temperature Field and Thermal Stress Field of Brake Disc of High-speed EMU

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[1]XIA Yimin,JI Zhiyong,YAO Pingping.Analysis of Transient Temperature Field and Thermal Stress Field of Brake Disc of High-speed EMU[J].Journal of Zhengzhou University (Engineering Science),2009,30(03):75-78.

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 30 Number of periods: 2009年03期 Page number: 75-78 Column: Public date: 1900-01-01

Title:: Analysis of Transient Temperature Field and Thermal Stress Field of Brake Disc of High-speed EMU

Author(s):: XIA Yimin; JI Zhiyong; YAO Pingping; 1．School of Materials Science and Engineering，Central South University。Changsha 410083，China；2．Key Laboratory ofComplexity of Modern Equipment Design and Extreme Manufacture，Central South University，Changsha 410083，China；3．Branch of Tunnel of Chinas，Railway 14 Group Corporation，Jinan 250002，China

Keywords:: brake discs; temperature field; thermal stress field; EMUs; Thermal-structural coupling

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Abstract:: Using the three-dimensional design software pro/e, a brake disc model that conforms to the actual size of a 300 km/h high-speed EMU is established, and the model is imported into the ANSYS software platform through the interface between pro/e and ANSYS, and the thermal-structure coupling calculation model of the brake disc of a high-speed EMU under emergency braking conditions is established. The distribution of the temperature field and stress field of the brake disc was obtained by applying the powerful nonlinear multiphysics processing function of ANSYS software to fully consider the influence of the material parameters of the brake disc with the change of temperature and temperature and the influence of heat flow coupling between the brake disc and the brake pad. The brake disc reaches a maximum temperature of 66 °C at t=815 s and a maximum stress of 90 MPa at t=760 s.

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Last Update: 1900-01-01