Tyre flexibility and mobility on soft soils |
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| Authors: | R.N. Yong P. Boonsinsuk E.A. Fattah |
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| Affiliation: | 1. William Scott Professor of Civil Engineering and Applied Mechanics, Director, Geotechnical Research Centre, McGill University, Montreal, PQ, Canada;2. Graduate Research Assistant, Geotechnical Research Centre, McGill University, Montreal, PQ, Canada;3. Research Associate, Geotechnical Research Centre, McGill University, Montreal, PQ, Canada |
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| Abstract: | Five model tyres were tested in the soil bin to investigate the effects of wheel flexibility on the tyre-soil performances. Two different soil types were used together with various inflation pressures which governed the tyre flexibility. The results confirm that tyre flexibility contributes significantly to the development of all the energy components [equation (1)] in the tyre-soil system. As can be seen from the contrasting performances shown, increasing the inflation pressure may allow for a favourable increase in the drawbar pull in one soil (frictional soil) so long as the input energy available can be increased, whilst the reverse may be true in the case of the other (clay) soil. The finite element model used satisfactorily confirms the measered values obtained and is seen to be able to account for tyre flexibility as shown in Figs. 11–14. |
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