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Browsing by Subject "damper dynamics"

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    Item type:Article, Access status: Open Access ,
    Simplified model of the dynamics of magneto-rheological dampers
    (Wydawnictwa AGH, 2005) Alexandridis, Alexander A.; Gołdasz, Janusz P.
    It has been long recognized that the inertia and compressibility of the fluid have a significant effect on the dynamic behavior of Magneto-Rheological (MR) dampers. Previous studies have revealed the nature of the effect through the analysis of a comprehensive, albeit fairly complex, state-space model of the MR monotube damper hydraulies. The present paper outlines a simpler model of the damper and presents simple analytical expressions for the transfer function between the input velocity (or stroke) and the output force. Pistons with single and dual flow passages are analyzed. In addition, simple expressions for the damper natural frequency and damping ratio are given. Finally the transfer functions are presented analytically as well as in the form of Bode plots of the amplitude and the phase angle of the transfer functions vs. the normalized frequency.