Closed-loop coupling model, based on complex eigenvalue analysis, is one of the most popular and effective methods for brake squeal analysis. In the model, imaginary coupling springs are used to represent the normal contacting force between coupled nodes. Unfortunately, the physical meaning of these coupling springs was seldom discussed and there’s no systematic method to determine the value of spring stiffness. Realizing this problem, this paper, based on finite element model and modal synthesis technique, develops a new closed-loop coupling disc brake squeal model without introducing imaginary coupling springs. Different from the traditional model where two nodes at coupling interface are connected through a spring, these node-pairs in the new model are assumed to remain in tight contact during vibration. Details of the model, including force analysis, coordinate reduction and transformation and complex eigenvalue decomposition are given in this paper. Finally, the presented method is applied on the modelling of a squealing disc brake, which shows good correlation between model prediction results and those from bench test. Besides, because there are less indeterminate model parameters, the time for parameters tuning process is greatly reduced.


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    Titel :

    Study on a Closed-Loop Coupling Model without Coupling Spring


    Weitere Titelangaben:

    Sae International Journal of Passenger Cars. Mechanical Systems
    Sae Int. J. Passeng. Cars - Mech. Syst


    Beteiligte:
    Gao, Pu (Autor:in) / Lv, Yingping (Autor:in) / Du, Yongchang (Autor:in) / Wang, Yujian (Autor:in)

    Kongress:

    SAE 2016 World Congress and Exhibition ; 2016



    Erscheinungsdatum :

    05.04.2016


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Study on a Closed-Loop Coupling Model without Coupling Spring

    Du, Yongchang / Lv, Yingping / Wang, Yujian et al. | British Library Conference Proceedings | 2016



    Substructure Modal Composition and Sensitivity Analysis based on Closed-Loop Coupling Model without Coupling Spring

    Lv, Yingping / Du, Yongchang / Wang, Yujian | British Library Conference Proceedings | 2016


    On the Coupling Stiffness in Closed-Loop Coupling Disc Brake Model through Optimization

    Du, Yongchang / Gao, Pu / Wang, Yujian et al. | British Library Conference Proceedings | 2015


    On the Coupling Stiffness in Closed-Loop Coupling Disc Brake Model through Optimization

    Gao, Pu / Lv, Yingping / Du, Yongchang et al. | SAE Technical Papers | 2015