Study on the Behavior of Crawler Vehicle on Rough Terrain

Abstract

The driving environment and shape of the combine harvester of crawler causes changes in the posture and vibration, which leads to the overturn and comfort of the operator. Additionally, vibration is increased when driving on rough terrain as the Track-Roller of combine harvester is often directly fixed to the frame. To organize stable driving conditions, this study conducted simulations of driving on the rough terrain by changing road surface roughness and driving speed based on the ISO. Results revealed that the time leaving the road increased as the roughness and running speed increased. Moreover, we determined the running speed, which maintains operability on each roughness of the terrain, from the speed of rising the road.