Study on the Behavior of Combine Harvester during Slope Traveling

Abstract

Combine harvesters experience the risk of falling accidents owing to the rapidly changing pitching posture during loading and unloading of trucks and when entering and leaving the field. In this study, a dynamic model of traveling behavior for a combine harvester with four degrees of freedom (vertical, pitching, rolling, and anteroposterior direction) was developed. In addition, the model was simulated for travel on various rigid slopes. It was found that the combine harvester runs the risk of falling accidents in the forward descend mode when entering the field, and the backward ascend mode when leaving slope. To prevent falling, it is necessary to travel at a maximum slope angle and traveling speed of 23° and 0.25 m/s, respectively.