关键词: 相对坐标法；递推方程；滚动轴承；时变位移；接触分析

Abstract:

This paper brought out a new dynamic analysis method on rolling bearing with relative coordinates and recursive formulation and the rigid and flexible contact dynamic model of ball bearing was proposed on the basis of flexible multibody dynamics theory with the effect of speed,preload,friction and centrifugal force.Applying the method of recursive formulation and numerical simulation to research the vibration analysis of contact force and time-varying displacement.The results reveal that the new method and dynamics model brought out herein can effectively deal with time-varying displacement and contact vibration of rolling bearing with the effect of time-varying and nonlinear contact factors such as speed and friction.The simulation results provide basic data for dynamics design of the bearing systems of machine and valuable theoretical basis for further research on dynamics characteristics of bearing with time-varying factors.

Key words: relative coordinate;recursive formulation;rolling bearing;time-varying displacement；contact analysis