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Applied Mathematics and Mechanics (English Edition) ›› 2004, Vol. 25 ›› Issue (10): 1139-1150.

• 论文 • 上一篇    下一篇

NONLINEAR DYNAMICS OF A CRACKED ROTOR IN A MANEUVERING AIRCRAFT

林富生1,2, 孟光1, Eric Hahn3   

  1. 1. State Key Laboratory of Vibration, Shock and Noise, Shanghai Jiaotong University, Shanghai 200030, P.R.China;
    2. Department of Electromechanical Engineering, Wuhan University of Science and Engineering, Wuhan 430073, P.R.China;
    3. School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney 2052, Australia
  • 收稿日期:2002-12-03 修回日期:2004-06-08 出版日期:2004-10-18 发布日期:2004-10-18
  • 通讯作者: MENG Guang,Professor,Doctor(Tel:+86-21-62932085;Fax:+86-21-62932674;E-mail:gmeng@sjtu.edu.cn) E-mail:gmeng@sjtu.edu.cn
  • 基金资助:

    the National "863" Project of China(2002AA412410),the National Natural Science Foundation of China(10325209,50335030)

NONLINEAR DYNAMICS OF A CRACKED ROTOR IN A MANEUVERING AIRCRAFT

LIN Fu-sheng1,2, MENG Guang1, Eric Hahn3   

  1. 1. State Key Laboratory of Vibration, Shock and Noise, Shanghai Jiaotong University, Shanghai 200030, P.R.China;
    2. Department of Electromechanical Engineering, Wuhan University of Science and Engineering, Wuhan 430073, P.R.China;
    3. School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney 2052, Australia
  • Received:2002-12-03 Revised:2004-06-08 Online:2004-10-18 Published:2004-10-18
  • Supported by:

    the National "863" Project of China(2002AA412410),the National Natural Science Foundation of China(10325209,50335030)

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摘要： The nonlinear dynamics of a cracked rotor system in an aircraft maneuvering with constant velocity or acceleration was investigated. The influence of the aircraft climbing angle on the cracked rotor system response is of particular interest and the results show that the climbing angle can markedly affect the parameter range for bifurcation, for quasi-periodic response and for chaotic response as well as for system stability. Aircraft acceleration is also shown to significantly affect the nonlinear behavior of the cracked rotor system, illustrating the possibility for on-line rotor crack fault diagnosis.

关键词: cracked rotor, maneuvering aircraft, nonlinear response, fault diagnosis

Abstract: The nonlinear dynamics of a cracked rotor system in an aircraft maneuvering with constant velocity or acceleration was investigated. The influence of the aircraft climbing angle on the cracked rotor system response is of particular interest and the results show that the climbing angle can markedly affect the parameter range for bifurcation, for quasi-periodic response and for chaotic response as well as for system stability. Aircraft acceleration is also shown to significantly affect the nonlinear behavior of the cracked rotor system, illustrating the possibility for on-line rotor crack fault diagnosis.

Key words: cracked rotor, maneuvering aircraft, nonlinear response, fault diagnosis

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