The effects of the aerodynamic actions an the body of automobiles running at high speed on randomly profiled roads are studied The forces acting m the body are introduced as functions of the air speed and some o f the state variables describing the vibrations m the vertical plane of the vehicle. The linearised analytical expressions of these forces assume a very interesting form: Sky-book springs and sky-hook dampers can be used to model the aerodynamic forces acting m the vertical plane an the vehicle body. Numerical simulations and experimental tests have been carried out to investigate the effects of aerodynamic forces an ride comfort and road holding of an automobile running at high speed m a randomly profiled road Both theoretical and measured data state that these effects appear to be sensible starting from vehicle speeds of 40–50 m/s. Suspension parameters should be tuned to account for aerodynamic effects which become more and more effective as the vehicle speed increases. Considerable improvement of ride comfort could be gained from a proper combined design of the suspension system and body shape.


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    Title :

    Aerodynamic Effects on Ride Comfort and Road Holding of Automobiles


    Contributors:

    Published in:

    Vehicle System Dynamics ; 25 , sup1 ; 99-125


    Publication date :

    1996-01-01


    Size :

    27 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




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