Dynamic behavior of crawler-type vehicles. (1st report. The theoretical study on straight propelling).

Crawler-type vehicles have a higher mobility on soft ground than wheel-type vehicles because of low-ground pressure and high-driving force. Therefore, it is important to understand the dynamic interaction between the soil and the track shoes durine propelling on soft ground, but there are few studies on such phenomena. Also, the dynamic driving force, the dynamic Rround pressure distribution and the dynamic behavior of the vehicles have not been developed theoretically at all. In this paper, a suitable simulation model, which considers the dynamic effect of the soil, has been proposed, and the equations of motion have been developed by Lagrange's equation.