Abstract

In the past, experimental studies on an open lugged wheel-soil interaction were conducted under predetermined constant slip and sinkage given mechanically. In practice, the soil reactions and motion of an open lugged wheel are determined by interaction between the soil-lug contact, and the soil under some load. For this study therefore, an experimental device giving freedom of movement in the vertical direction to a lugged wheel and self-propelled mechanism, was constructed. The slip and sinkage and soil reactions obtained in this experiment were considered to represent the actual phenomena of soil-lug interaction. Dynamic behaviour of the lugged wheel has already been reported [1]. Furthermore, the characteristics of soil reactions of the lugged wheel induced by lugs moving into the soil were measured and discussed.

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