This paper deals with the modelling of a car suspension including rubber bushings. Significant differences are found between data from the numerical elastokinematic model and experimental results. One reason for these differences comes from geometrical shifts of bushing centres in the real suspension with respect to the numerical model. The aim of the present work is to reduce the differences by identifying the geometric parameters of the elastokinematic model. To achieve this goal, a method is proposed for computing the location and orientation of each part and joint in the assembled suspension. The first stage of the method uses measurements on separate parts to define joint location in the coordinate system local to the part. In the second stage, measurements are performed on the assembled suspension mechanism using a portable coordinate measuring machine for locating parts and joints in a global coordinate system. Based on these data and elastic joint stiffnesses, bushing deflection is computed at the static equilibrium of the vehicle and used to identify the real joint locations on parts. This identification method is tested on a pseudo-McPherson suspension and improves model behaviour during vertical wheel movement.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Geometric Identification of an Elastokinematic Model in a Car Suspension


    Contributors:
    Meissonnier, J (author) / Fauroux, J-C (author) / Gogu, G (author) / Montezin, C (author)


    Publication date :

    2006-09-01


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Geometric identification of an elastokinematic model in a car suspension

    Meissonnier,J. / Fauroux,J.C. / Gogu,G. et al. | Automotive engineering | 2006



    Multi-link suspension analysis: An elastokinematic model

    Cambiaghi, D. / Gadola, M. / Vetturi, D. et al. | Tema Archive | 1996


    Multi-Link Suspension Analysis: An Elastokinematic Model

    Cambiaghi, D. / Gadola, M. / Vetturi, D. et al. | British Library Conference Proceedings | 1996


    Iterative identification of stiffness parameters in a car suspension elastokinematic model

    Meissonnier, J / Metz, P / Fauroux, J-C et al. | SAGE Publications | 2006