Dynamic Model of Dual-Rotor System with Rub-Impact Fault Between Rotor and Stator and its Feature of Wavelet Transform

Liu Xiandong; Li Qihan; Wang Deyou

Volume 15 Issue 2

Apr. 2000

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Article Navigation > Journal of Aerospace Power > 2000 > 15(2): 187-190

Liu Xiandong, Li Qihan, Wang Deyou. Dynamic Model of Dual-Rotor System with Rub-Impact Fault Between Rotor and Stator and its Feature of Wavelet Transform[J]. Journal of Aerospace Power, 2000, 15(2): 187-190.

Citation:

Liu Xiandong, Li Qihan, Wang Deyou. Dynamic Model of Dual-Rotor System with Rub-Impact Fault Between Rotor and Stator and its Feature of Wavelet Transform[J]. Journal of Aerospace Power, 2000, 15(2): 187-190.

Citation:

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Dynamic Model of Dual-Rotor System with Rub-Impact Fault Between Rotor and Stator and its Feature of Wavelet Transform

1.
Mech.Eng.Dept.,Shijiazhuang Railway Institute,Shijiazhuang 050043,China
2.
4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083,China
3.
13th Division,Shenyang Aeroengine Institute,Shenyang 110015,China

Received Date: 1999-03-03
Rev Recd Date: 1999-05-13
Publish Date: 2000-04-28

Abstract

Abstract

Using Lagrange′s equation,the dynamic equation of dual rotor system with rub impact fault of some type of aeroengine is established,and emulations of this fault is completed through numerical calculation.The spectral analysis and wavelet transform are also made,and the conclusions are drawn that the dynamic model of dual rotor system with rub impact fault is valid and the wavelet transform is a very effective tool to diagnose this fault.
- rotors,
- rub,
- fault diagnosis