Simulation study on rub-impact fault of high-speed rotor-bearing system

被引：0
|
作者：
Zhang, Nan [1 ,2 ]
Liu, Zhan-Sheng [1 ]
Jiang, Xing-Wei [1 ]
机构：
[1] Harbin Institute of Technology, Harbin 150001, China
[2] Beijing Aerospace Propulsion Institute, Beijing 100076, China
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2010年 / 29卷 / 09期
关键词：
Vibration analysis - Numerical methods;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on the nonlinear dynamics theory, the model of high-speed rotor-bearing system with rub-impact was studied. The vibration characteristics of rotor-bearing system rubbing with journal bearing supports were educed. The effect of eccentricity parameter on system vibration characteristics was studied. The system response was gained by using numerical integral method based on the dynamics model of rotor-bearing system with rubbing fault. The changing rules for system responses along with the rotating speed and eccentric distance were studied by use of response curve, bifurcation curve and waterfall figure. The study is helpful for diagnosing effectively the rub-impact fault between rotor and journal bearing supports, reducing occurrence rate of fault and improving dynamics characteristics of rotor systems.
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页码：77 / 81
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