Browse Publications Technical Papers 2000-05-0395
2000-06-12

Turning characteristics of two-axle, four-wheel vehicle running on sandy soft terrain 2000-05-0395

The objective of the research is to investigate the turning characteristics of a two-axle, four-wheel vehicle at steady-state circular turning on sandy soft terrain. The axle load, lateral force, thrust and effective tractive effort acting on the wheeled vehicle turning on soft and hard terrain were compared. It was observed that the directions of lateral force acting to the front wheel of vehicle running on soft and hard terrain are opposite. Moreover, the lateral force acting to front wheel of the case of vehicle running on soft terrain is larger than that for the case of hard terrain. However, it is found that there is only a little difference between lateral forces acting to rear wheel of vehicle running on soft and hard terrain. It was observed that the axle load of rear wheel was larger than that of front wheel running on soft terrain and the axial force-steering angle relationships of the soft and hard terrain were almost similar. In the case of vehicle under traction on steady-state circular turning, it was found that lateral force in direction of turning increased with the increase of effective tractive effort.

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