In this paper, a method of introducing falling friction coefficients into curving simulations for studying curve squeal noise is presented. Generation of squeal at the wheel of a railway vehicle in a curve is caused by unstable vibration, caused in turn by a lateral wheel/rail force which reduces with increasing lateral creepage. To model vehicle curve squeal, the wheel/rail tangential force in the curving simulation is calculated by a modified version of FASTSIM, which uses a sliding velocity-dependent friction characteristic. Using the falling friction characteristics, a UK passenger vehicle is modelled with SIMPACK. Curving behaviour is simulated for a range of curve radii and cant deficiencies. The wheel/rail contact properties are then obtained to study the possibility of the occurrence of squeal using a frequency-domain method. The methodology in this paper allows various curves, wheel/rail profiles, vehicle speeds and friction characteristics to be taken into account.


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    Title :

    Introduction of falling friction coefficients into curving calculations for studying curve squeal noise


    Contributors:
    Xie, G. (author) / Allen, P. D. (author) / Iwnicki, S. D. (author) / Alonso, A. (author) / Thompson, D. J. (author) / Jones, C. J. C. (author) / Huang, Z. Y. (author)

    Published in:

    Vehicle System Dynamics ; 44 , sup1 ; 261-271


    Publication date :

    2006-01-01


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




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