Stability of periodic motion on the rotor-bearing system with coupling faults of crack and rub-impact

被引:0
|
作者
Yue-Gang Luo
Zhao-Hui Ren
Hui Ma
Tao Yu
Bang-chun Wen
机构
[1] Northeastern University,
[2] Dalian Nationalities University,undefined
关键词
Rotor-bearing system; Crack and rub-impact; Floquet theory;
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学科分类号
摘要
A dynamic model was set up for the rotor-bearing system with coupling faults of crack and rub-impact. Using the continuation-shooting algorithm for periodic solution of nonlinear non-autonomous system, the stability of the system periodic motion was studied by the Floquet theory. The saddle-node bifurcation, periodic-doubling bifurcation and the Hopf bifurcation were found. There are peculiar dynamic characteristics of the rotor-bearing system with coupling faults of crack and rub-impact that differs from single fault. The conclusions provide theoretic basis reference for the failure diagnosis of the rotor-bearing system with coupling faults of crack and rub-impact fault.
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页码:860 / 864
页数:4
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