SIMULATION STUDY FOR OVERTURNING AND ROLLOVER PERFORMANCE OF A MULTI-PURPOSE AGRICULTURAL MACHINE

초록

In this study, dynamic simulation for multi-purpose agricultural machine has been conducted to evaluate the lateral overturning and the backward rollover performance. The dynamic simulation was performed by using commercial simulation software. 3D model was constructed by reflecting actual shape and size of the machine, and the properties of body frame and tire were input by using actual and related literature data. In the simulation, self-weight of each component was considered and simulation conditions were determined by considering actual operating condition ranges of the machine. In the lateral overturning simulation, the driving speed for caused lateral overturning was derived as changed the inner wheel steering angle from 10° to 100°. In the backward rollover simulation, driving speed for caused the backward rollover was derived as changed floating angle of front shaft (10°, 20°, 30°, 40°, 50°, and 60°). As a result of simulation, it was confirmed that the lateral overturning did not occur under 15 km/h driving speed condition. Also, backward rollover did not occur under 4.64 km/h driving speed condition. © ISTVS 2021. All rights reserved.

키워드