Research on the Finite Element Impact-Contact Analytical Model of Dual-Rotor System and its Diagnosis Method

SHAN Ying-Chun; LIU Xiandong; HE Tian; LI Qi-han

Volume 20 Issue 5

Oct. 2005

Turn off MathJax

Article Contents

Article Navigation > Journal of Aerospace Power > 2005 > 20(5): 789-794

SHAN Ying-Chun, LIU Xiandong, HE Tian, LI Qi-han. Research on the Finite Element Impact-Contact Analytical Model of Dual-Rotor System and its Diagnosis Method[J]. Journal of Aerospace Power, 2005, 20(5): 789-794.

Citation:

SHAN Ying-Chun, LIU Xiandong, HE Tian, LI Qi-han. Research on the Finite Element Impact-Contact Analytical Model of Dual-Rotor System and its Diagnosis Method[J]. Journal of Aerospace Power, 2005, 20(5): 789-794.

Citation:

PDF( 707 KB)

Research on the Finite Element Impact-Contact Analytical Model of Dual-Rotor System and its Diagnosis Method

1.
Department of Automobile Engineering,Beijing University of Aeronautics and Astronautics,Beijing100083,China
2.
School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing100083,China

Received Date: 2004-10-19
Rev Recd Date: 2005-01-12
Publish Date: 2005-10-28

Abstract

Abstract

Considering the shortages of common rotor-stator rubbing models,using ANSYS software,a new rotor-stator rubbing model was presented based on the relationship between relative normal displacement and normal contact force.Then the rotor-stator dynamic equations were established by combining with the Whole Transfer Coefficient Method(WTCM).The dynamic characteristics were calculated by the WTCM,and then the transient responses of dual-rotor system were solved.The responses were analyzed by the time-domain curve,the Fourier transform and the wavelet transform respectively.Furthermore the fault characteristics were deduced and discussed.These results provide some reference for fault diagnosis of dual-rotor system.
- aerospace propulsion system,
- rubbing model,
- finite element,
- fault diagnosis,
- dual-rotor system