Through a simple model of a quarter-car, the isolation properties of a semi-active suspension has been studied using the SA1 sky-hook like algorithm. It has been shown that the isolation provided by the suspension is degraded by the nonlinearity of the semi-active algorithm, which tends to generate high frequency components at the harmonics of the unsprung mass resonance. These high frequency vibrations may potentially generate noise through the excitation of flexible modes of the vehicle. This energy transfer phenomenon may be alleviated to some extent by different means, like filtering the control signal or adding a resilient mounting to the semi-active damper. In this paper, an alternative semi-active algorithm has been presented. By imposing smooth variations to the damper constant, it has been found that, for a similar reduction of the body resonance, the isolation at high frequency is improved compared to the continuous semi-active sky-hook. Additionally, the RMS value of the sprung mass acceleration is also reduced, mainly because of a better damping of the wheel resonance.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    High frequency energy transfer in semi-active suspension


    Weitere Titelangaben:

    Hochfrequenz-Energieübertragung in einer halbaktiven Aufhängung


    Beteiligte:
    Collette, C. (Autor:in) / Preumont, A. (Autor:in)

    Erschienen in:

    Journal of Sound and Vibration ; 329 , 22 ; 4604-4616


    Erscheinungsdatum :

    2010


    Format / Umfang :

    13 Seiten, 14 Bilder, 24 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    Semi-active suspension and semi-active suspension control method and device

    CHEN LIN / YANG LI / TAN KANLUN et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Semi-active suspension system

    Crawford,I.L. / Ford Motor,GB | Kraftfahrwesen | 1987


    Semi-Active Hydropneumatic Suspension

    Sorli, M. / Quaglia, G. / Mauro, S. et al. | British Library Conference Proceedings | 1994


    SEMI-ACTIVE SUSPENSION CONTROLS

    HAMILTON KEVIN J / SOLDAN DANIEL | Europäisches Patentamt | 2018

    Freier Zugriff