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A new paradigm for disc-pad interface models in friction brake system
Qiu, L. Qi, Hong Sheng Wood, Alastair S.
Qiu, L.
Qi, Hong Sheng
Wood, Alastair S.
Publication Date
2015
End of Embargo
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© 2015 FISITA. Reproduced with the permission of the publisher and in accordance with the publisher's self-archiving policy.
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yes
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Accepted for publication
2014
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Abstract
In this paper a 2D coupled thermal-stress finite element model is established and used to predict thermal phenomena at the disc-pad interface of a disc brake system. The importance of certain critical settings and parameters for the 2D FE model has been identified (such as, a limited degree of freedom for a brake pad in place of accepted practice that considers uniform contact), here a non-uniform pressure distribution resulting from friction bending moment effects due to the introduction of a pivot point. These parameters affect the distributions of both interface temperature and pressure. The simulation results show that when the interface conductance h is 10^6 W/m^2K or higher, the interface temperature distribution is no longer sensitive to friction bending moment effects. However, when h is 30000 W/m^2K or lower, the interface temperature distribution and heat partition ratio are significantly affected by the setting used for the rotational degree of freedom of the pad. The simulation results provide a useful reference for a better design of a disc brake system for different applications.
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Accepted Manuscript
Citation
Qui L, Qi HS and Wood AS (2015) A new paradigm for disc-pad interface models in friction brake system. Paper No. EB2015-TEF-012 presented at EuroBrake 2015, Dresden, Germany, 4-6 May 2015. In: EuroBrake 2015 Conference Proceedings. FISITA. ISBN:978-0-9572076-6-0.
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Conference paper