滚动轴承内圈故障的动力学模型建立及仿真

针对目前滚动轴承内圈含单一点蚀故障模型无法真实再现实际故障发生过程的缺陷,基于接触理论,综合考虑内圈变形和故障实际尺寸等因素,根据滚动体通过内圈点蚀故障形变量渐变释放的客观事实,建立了1种滚动轴承内圈故障的动力学模型,克服了传统模型瞬间释放变形量导致冲击力过大的缺陷。经数值仿真和试验验证表明了该模型的正确性。

Dynamics Model Establishment and Simulation of Rolling Bearing Element with Inner Race Defect

In consideration of tradition fault model of rolling bearing element with a single race defect can not show the real fault process a kind of dynamics model for the rolling bearing element with inner race defect was built based on contact theory, considering the inner race deformation and real fault sizes, and gradual releasing of deformation. It can improve the disadvantage that big impact force caused by the deformation transient releasing of the tradition model. This new model is verified to be reasonable by numerical simulation and experimental validation.