Simulation Study on the Influence of Grain Operation Conditions on the Dynamic Characteristics of Vehicle Body based on RecurDyn

Abstract

At present, the grain storage depot has introduced the warehouse closing vehicle to replace the manual grain surface leveling operation. Aiming at the problems of subsidence, vibration and slipping when the warehouse car walks on the grain surface, the multi-body dynamics simulation is carried out for the four complex working conditions and load conditions of the car body in the grain depot environment, including straight running, turning, tilting and obstacle crossing, and its driving dynamic characteristics are analyzed. It can be seen from the simulation results that in the turning condition, the required driving force is the largest, the sliding condition is the most serious, the sinking degree is the deepest, and the stability is the worst. The driving dynamics of the clearance car will change suddenly when entering and leaving the pit under the obstacle crossing condition. Through the dynamic simulation results, the change law of the driving dynamic characteristics of the clearance car is summarized, and the vibration damping performance, adhesion performance and Through performance and work efficiency, it provides a theoretical basis for vehicle body design and optimization.