| Issue |
E3S Web Conf.
Volume 233, 2021
2020 2nd International Academic Exchange Conference on Science and Technology Innovation (IAECST 2020)
|
|
|---|---|---|
| Article Number | 04012 | |
| Number of page(s) | 4 | |
| Section | MEA2020-Mechanical Engineering and Automation | |
| DOI | https://doi.org/10.1051/e3sconf/202123304012 | |
| Published online | 27 January 2021 | |
Influence of radial clearance on nonlinear dynamics of a two-span three-support rotor system
1 College of Power Engineering, Naval Univ. of Engineering, Wuhan 430033, China
2 China state shipbuilding corporation limited 703 Wuxi Branch, Wuxi 214151, China
Aiming at the structural form of a certain rotor system, a double-span three-support rotor system model is established. It is supported by three rolling bearings and has a typical nonlinear characteristic. The fourth-order Runge-Kutta method is used to solve the differential equations and analyze the nonlinear dynamic characteristics of the rotor system when the radial clearance of the bearing changed. The research results: with the increase of the rear bearing radial clearance, the rotor system performs single cycle, periodic two and pseudo-periodic motion. With the three location bearing radial clearance increases, the rotor system performs single cycle, periodic two and periodic four motion. When the radial clearance is bigger, the rotor system performs two periodic motion. The influence law of radial clearance on double span three - braced rotor system is shown.
© The Authors, published by EDP Sciences 2021
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