Spatial repeatability of measured dynamic tyre forces

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Spatial repeatability of measured dynamic tyre forces

Spatial repeatability of measured dynamic tyre forces

Cole, D.J. / Collop, A.C. / Potter, T.E.C. / Cebon, D.

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 highwayfleet. 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

Additional title:

Räumliche Wiederholgenauigkeit von gemessenen dynamischen Reifenkräften

Contributors:

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

Published in:

Proceedings of the Institution of Mechanical Engineers, Part D (Journal of Automobile Engineering) ; 210 , D3 ; 185-197

Publication date :

1996

Size :

13 Seiten, 20 Bilder, 1 Tabelle, 19 Quellen

ISSN :

DOI :

https://doi.org/10.1243/PIME_PROC_1996_210_262_02

Type of media :

Article (Journal)

Type of material :

Print

Language :

English

Keywords :

Nutzfahrzeug , Luftreifen , dynamische Beanspruchung , Messen mechanischer Größen , Kraftmessung , Wiederholgenauigkeit

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