The dynamic tyre forces generated by heavy goods vehicles are measured with a portable load measuring mat and used to investigate ‘spatial repeatability’. The mat is 56 m long, 13 mm thick and has 141 capacitative strip sensors, spaced at 0.4 m intervals. Two sets of experiments are described. In the phase 1 experiments the measured dynamic tyre forces generated by fourteen articulated vehicle combinations (three tractors and five trailers) are used to confirm previous theoretical predictions of spatial repeatability. In the phase 2 experiments the dynamic tyre forces generated by over 1500 heavy goods vehicles travelling on a British trunk road are used to estimate the degree of repeatability exhibited by a typical highway fleet.

    Spatial repeatability is assessed using the ‘spatial repeatability index’ (SRI), and a method is developed to correct the SRI for sensor noise. Approximately half the vehicles tested were found to contribute to a spatially repeatable pattern of road loading.


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    Title :

    Spatial Repeatability of Measured Dynamic Tyre Forces


    Contributors:
    Cole, D J (author) / Collop, A C (author) / Potter, T E C (author) / Cebon, D (author)


    Publication date :

    1996-07-01


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Spatial repeatability of measured dynamic tyre forces

    Cole, D.J. / Collop, A.C. / Potter, T.E.C. et al. | Tema Archive | 1996



    Spatial repeatability of measured dynamic tyre forces

    Cole,D.J. / Collop,A.C. / Potter,T.E. et al. | Automotive engineering | 1996