基于轴承间隙模型的摆锤碰撞试验台仿真研究

基于Andrews的轴承间隙动力学模型,推导了不同工况下轴承应力的计算公式,并在摆锤碰撞试验台系统上进行了仿真,并编写了仿真软件。为了验证本文模型的有效性,把仿真结果与没有考虑轴承间隙时的仿真数据以及试验数据进行了对比,表明基于轴承间隙的仿真模型更接近于试验结果。本文中的间隙模型也可用于其他机械系统的动力学仿真。

Simulation of impact test bench with pendulum based on bearing clearance model

An equation for calculating the bearing stresses under different operating condition was derived based on the Andrews dynamic model for the bearing clearance.The equation was applied to the simulation of the impact test bench with pendulum and a simulate program was compiled.The simulated results were compared with those of the simulation without consideration of the bearing clearance and those of the experiments,showing the simulation result based on the bearing clearance model was closer to the experimental one than that without considering the clearance.The suggested bearing clearance model can be used to the dynamic simulation of the other mechanical systems.