A nonlinear dynamic vibration model of defective bearings  The importance of modelling the finite size of rolling elements
We present a nonlinear multi-body dynamic vibration model of a defective bearing. We show the importance of modelling the finite size of the rolling elements. We demonstrate improvement over models that consider rolling elements as point masses. We show good agreement between simulated and experimental results. We identify and explain the cause of inaccurate predictions of point mass models.
vibration model rolling element bearing spall defect size contact forces