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Browsing by Subject "aktuatory PZT"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Vibration control of a fluid-loaded circular plate via pole placement
    (Wydawnictwa AGH, 2008) Leniowska, Lucyna
    This paper presents the application of active control system to reduce the vibration and the sound radiation of a circular plate which is fluid-loaded and clamped at a finite baffle. The plate is driven by a uniform harmonic primary force and controlled by a distributed secondary force generated by the piezodisks. The aim of the paper is to design a controller to modify the response of the plant in some desired fashion. The mathematical model of the system includes the influence the acoustic wave radiated by the plate, Kelvin-Voigt damping in the plate material and viscous fluid damping. For the considered system the transfer function of controller of 4th order, satisfying the polynomial Diofantine equation, is derived. The influence of the fluid-loading and damping effects on the system response are presented graphically and discussed. The results show that plate modes have been reduced very well by obtained controller for a few assumed values of damping coefficients.