New analysis model for rotor-bearing systems based on plate theory

Abstract

The purpose of this work is to develop a new analysis model for angular-contact, ball-bearing systems on the basis of plate theory instead of commonly known approaches that utilize spring elements. Axial and radial stiffness on an annular plate are developed based on plate, Timoshenko beam, and plasticity theories. The model is developed using theoretical and inductive methods and validated through a numerical simulation with the finite element method. The new analysis model is suitable for static and modal analyses of rotor-bearing systems. Numerical examples are presented to reveal the effectiveness and applicability of the proposed approach.

Keywords

rotor-bearing system / rolling element bearing / plate theory / finite element analysis

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Acknowledgement

The authors would like to thank Professor Hongguang Li of Shanghai Jiao Tong University for his valuable comments on this paper. The authors are grateful for the support of the National Natural Science Foundation of China (Grant Nos. U1637206 and 51705311), the SAST Project (Grant No. SAST2017-079) and the State Key Laboratory of Mechanical System and Vibration of Shanghai Jiao Tong University (Grant No. MSVZD201709)..

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