A flexible dynamic model for an electric propulsion shaft system with ball bearing supports

Yuchen An, Jing Liu, Chiye Yang, Qiaogao Huang, Guang Pan, Shenzhen Research Institute of Northwestern Polytechnical University, Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, PR. China, School of Marine Science and Technology, Northwestern Polytechnical University, PR. China

Journal of Vibration and Control

Published online on April 29, 2025

Abstract

Journal of Vibration and Control, Ahead of Print.
The underwater electric propulsion system suffers the unbalance magnetic pull and nonlinear bearing forces due to the elastic shaft deformations, then the system vibrations would be changed nonlinearly. In this paper, a dynamic model of a flexible ...