A mathematical model of a gas-charged mono-tube racing damper is presented. The model includes bleed orifice, piston leakage, and shim stack flows. It also includes models of the floating piston and the stiffness characteristics of the shim stacks. The model is validated with experimental tests on an Ohlins WCJ 22/6 damper and shown to be accurate. The model is exercised to show the effects of tuning on damper performance. The important results of the exercise are 1) the pressure variation on the compression side of the piston is insignificant relative to that on the rebound side because of the gas charge, 2) valve shim stiffness can be successfully modeled using stacked thin circular plates, 3) bleed orifice settings dominate the low speed regime, and 4) shim stack stiffness dominates the high speed regime.


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    Title :

    An Experimentally Validated Physical Model of a High-Performance Mono-Tube Damper


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Motorsports Engineering Conference & Exhibition ; 2002



    Publication date :

    2002-12-02




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    An Experimentally Validated Physical Model of a High-Performance Mono-Tube Damper

    Talbott, M. S. / Starkey, J. / SAE | British Library Conference Proceedings | 2002



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