A novel method for the approximate estimation of curve squeal sound levels is proposed. The method directly targets the stationary regime by using wheel/rail mobilities at contact instead of modal characteristics of the structures. The condensation allows a more general description of the dynamics of the structures, in particular the behavior of the rail for which a modal representation is not very suitable. The method is first validated in the case of a reduced modal description of the system by comparing results to a reference cycle obtained by numerical integration in the time domain. It is then applied to realistic cases for which the wheel/rail mobilities are obtained from more elaborated models. The model can be used to carry out parametric studies allowing to design squeal noise mitigation solutions.


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    Title :

    Estimation of Vibration Limit Cycles from Wheel/Rail Mobilities for the Prediction of Curve Squeal Noise


    Additional title:

    Lect.Notes Mechanical Engineering



    Conference:

    International Workshop on Railway Noise ; 2022 ; Shanghai, China December 07, 2022 - December 09, 2022



    Publication date :

    2024-02-24


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English






    Curve Squeal in the Presence of Two Wheel/Rail Contact Points

    Squicciarini, G. / Usberti, S. / Thompson, D.J. et al. | British Library Conference Proceedings | 2015


    Curve Squeal in the Presence of Two Wheel/Rail Contact Points

    Squicciarini, G. / Usberti, S. / Thompson, D. J. et al. | Springer Verlag | 2015


    Curve squeal

    van den Brink, J. | British Library Conference Proceedings | 2000