@inproceedings{b5feb8e2e33f442f8414b3cfed41ad10,
title = "Vibration analysis of a rotordynamic system with nonlinear bearing supports",
abstract = "This paper investigates the dynamic behaviour of a rotordynamic system incorporating stiffness nonlinearity in the supporting bearings. The system model comprises a horizontal Jeffcott rotor mounted on symmetrically located ball bearings. The nonlinear radial stiffness of the bearing is estimated based on the Hertzian contact theory. The harmonic balance approximations and the time-marching method are applied to solve the governing equations and determine the steady-state dynamic response. The results show that a small nonlinear bearing stiffness provides benefits for the suppression of response in the high frequency range. A large damping coefficient in the bearing can reduce the peak response amplitude. A combination of a small bearing stiffness and a large bearing damping can assist in effective vibration suppression from rotor in a broad excitation frequency range.",
keywords = "Harmonic balance method, Nonlinear bearing, Nonlinear stiffness, Rotordynamics",
author = "Wei Dai and Jian Yang",
note = "Publisher Copyright: {\textcopyright} Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. All rights reserved.; 26th International Congress on Sound and Vibration, ICSV 2019 ; Conference date: 07-07-2019 Through 11-07-2019",
year = "2019",
language = "English",
series = "Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019",
publisher = "Canadian Acoustical Association",
booktitle = "Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019",
address = "Canada",
}