AbstractThe vibration isolation and mitigation of a platform, such as aerospace or precision instrument platforms, is an important research topic. However, previous studies only address high-frequency excitations; they disregard the control effect of low-frequency excitations. Thus, a new vibration control scheme for a platform is proposed to reduce the dynamic responses of a platform that is subjected to wide-frequency excitations, which range from 0 to 500 Hz, using vibration isolation and mitigation devices, magnetorheological (MR) dampers, and viscoelastic (VE) dampers. The motion equations of a complex dynamic system with these three different types of dampers are deduced considering seven degree-of-freedom coupling vibration. The idea of multistate control is adopted to control the inputting currents of the MR damper, and the dynamic responses of the platform to sinusoidal excitation, white noise excitation, and load spectrum excitation are calculated, respectively. The analysis results indicate that the proposed vibration control scheme is effective and suitable for vibration control of the platform.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Intelligent Vibration Isolation and Mitigation of a Platform by Using MR and VE Devices



    Erschienen in:

    Erscheinungsdatum :

    2016




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.50 Luftfahrzeugtechnik / 51.40 Werkstoffe für bestimmte Anwendungsgebiete / 55.60 Raumfahrttechnik
    Lokalklassifikation TIB:    770/7040





    Vibration Isolation Using Stewart Platform

    Bereteu, L. / Nagy, R. / Boltosi, A. et al. | British Library Conference Proceedings | 2008


    Vibration Mitigation Using An Inerter-based Isolation System

    Sima Abolghasemi / Nicholas E Wierschem / Joseph B Knight | NTRS


    Vibration isolation devices

    GREEN DOTSON CARSON / WILDER WILLIAM BLAIR / BIJELIC ADNAN | Europäisches Patentamt | 2018

    Freier Zugriff