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    A new paradigm for disc-pad interface models in friction brake system

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    EB2015-TEF-012-27-04.pdf (1.031Mb)
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    Publication date
    2015
    Author
    Qiu, L.
    Qi, Hong Sheng
    Wood, Alastair S.
    Keyword
    finite element method, heat transfer, interface conductance, partition ratio, pressure distribution
    Finite element method, Heat transfer, Interface conductance, Partition ratio, Pressure distribution, Disc-pad interface, Disc brake system
    Rights
    © 2015 FISITA. Reproduced with the permission of the publisher and in accordance with the publisher's self-archiving policy.
    Peer-Reviewed
    yes
    
    Metadata
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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.
    URI
    http://hdl.handle.net/10454/7921
    Version
    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.
    Link to publisher’s version
    http://2015.eurobrake.net/programme/technical-programme/EB2015-TEF-012
    Type
    Conference paper
    Collections
    Engineering and Informatics Publications

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