Thermal-Structure Coupling Characteristics of Brake’s Rotating Joint Surface

doi:10.12068/j.issn.1005-3026.2015.04.015

Abstract

Abstract: In order to explore the frictional heat and the heat distribution between brake disc and friction plate， the process of emergency braking was simulated using the finite element software. The distribution and variation characteristics of temperature field and stress field were studied. The results showed that the distribution of temperature field and stress field is uneven during the braking process. Their gradients in radial and axial directions are greater， but in circumferential direction is relatively smaller. The thermal and mechanical stress will lead to thermal deformation of the brake disc， which can change contact state and pressure distribution. The change of contact pressure will affect the friction heat input. The thermal deformation of the brake disc is not only the coupling result of the temperature and stress fields， but also the coupling result of the vibration and friction.

Key words: braking system, temperature field, stress field, vibration, friction

CLC Number:

U463.51

LI Xiao-peng， SUN De-hua， LIANG You-jian， ZHAO Guang-hui. Thermal-Structure Coupling Characteristics of Brake’s Rotating Joint Surface[J]. Journal of Northeastern University Natural Science, 2015, 36(4): 521-526.

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