变速工况下滚动轴承外圈故障振动的模型与仿真

通过轴承整体振动简化模型及对应的振动微分方程,建立了外圈损伤故障滚动轴承在变速工况下的径向整体振动模型,利用Simulink仿真环境建立了相应的仿真模型,将仿真结果与试验结果进行时域、频域对比分析,结果表明了模型的正确性,为非平稳工况下滚动轴承的故障诊断与状态监测提供了理论基础和现实依据.

Research On Vibration Model and Simulation for an Outer Ring Faulty Bearing Under Variable Speed

The paper puts forwards the vibration model of faulty bearing and its differential equation,and builds up the vibration model of faulty bearing with a single defect on outer ring under variable speed.A simulated model is built up later by using the simulation tool Simulation.The outputs of simulated model and experiments are compared in both time domain and frequency domain and the theory model is proved to be correct.