Experimental comparison of vibration isolation ability of centralized and uncentralized squeeze film damper

被引：0
作者：
Zhu C. [1 ,2 ]
Mao C. [1 ]
Li P. [1 ]
机构：
[1] College of Electrical Engineering, Zhejiang University, Hangzhou
[2] Collaborative Innovation Center for Advanced Aero-Engine, Beijing
来源：
| 1600年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 32期
关键词：
Centralized spring; Nonlinear; Rotor; Rotor dynamics; Squeeze film damper;
D O I：
10.13224/j.cnki.jasp.2017.11.014
中图分类号：
学科分类号：
摘要：
In order to compare experimentally the vibration isolation ability of centralized and uncentralized squeeze film damper(SFD) with/without a centralized spring, a series of experiments with different rotor unbalance masses and radial clearances were done in a multi-disk flexible rotor system with the centralized and uncentralized SFD. It was shown that both the centralized SFD and the uncentralized SFD can effectively isolate the vibration of the rotor system with comparison to the rotor system supported on the rolling ball bearings or the centralizing springs. In the rotor system with the centralized SFD, when the action of centralized SFD was weaker than that of the centralized spring, the critical speeds of the rotor system can be adjusted by the stiffness of centralized spring, and located at the critical speeds of the rotor system with the centralized springs. However, when the action of SFD was stronger than that of the centralized spring, the critical speeds of the rotor system cannot be adjusted by the stiffness of centralized spring and located at the critical speeds of the rotor system with the rigid mounts. The nonlinearity in the rotor system with the uncentralized SFD was more complex than that with the centralized SFD; in additional to the main resonance, the sub- and super-resonances were observed. © 2017, Editorial Department of Journal of Aerospace Power. All right reserved.
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页码：2672 / 2679
页数：7
相关论文
共 18 条
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