In this paper, a quasi-steady modelling methodology for an MR fluid mount based on the disk squeeze mode is presented. The quasi-steady modelling of the MR fluid squeeze radial flow is analytically set by analysing the MR fluid volume continuity and the MR fluid micro-element force equilibrium in the radial coordinate. The MR flow is divided into a Newtonian flow region and a bi-viscous flow region by yield radius at the disk surface. The MR fluid radial flow velocity profile is theoretically obtained via a Navier slip condition boundary and compatible conditions, using which some influences of the slip coefficient and the radius coordinate on radial flow velocity are examined. The linearisation equation of the pressure gradient in the bi-viscous flow region is used to obtain the radial pressure distribution and the analytical squeeze force algorithm. In accordance with disk velocity, the parameters of the MR fluid bi-viscous constitutive model and the disk geometry and the behaviour of the MR fluid mount are predicated under electric currents ranging from 0.0 to 2.0 A and a disk peak velocity of 0.025 m/s. According to the technical requirements of conventional mounts, a MR mount is designed and fabricated in Chongqing University. The MR fluid mount is tested using the electro-hydraulic servo vibrator, whose result reveals that the analytical squeeze forces offered by the quasi-steady model of the MR fluid squeeze radial flow are in good agreement with the experimental squeeze forces. On the whole, the diagram of the analytical squeeze force versus the disk displacement is in accordance with that derived from the MR experimental testing. For optimisation, the oscillatory squeeze flow of the MR fluid considering the inertia effect requires to be studied in the future.


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    Title :

    Quasi-steady modelling for magneto-rheological fluid mount based on squeeze mode and experimental testing


    Additional title:

    Quasistationäre Modellierung eines magnetorheologischen Motorträgers basierend auf dem Quetschmodus und Versuchsprüfungen


    Contributors:
    Liao, Chang-Rong (author) / Lei, Xie (author) / Zhao, Dan-Xia (author) / Liu, Qiong (author)

    Published in:

    Publication date :

    2013


    Size :

    6 Seiten, 9 Bilder, 16 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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