Applied Mathematics and Mechanics (English Edition) ›› 2002, Vol. 23 ›› Issue (6): 721-731.

• 论文 • 上一篇    下一篇

NONLINEAR ANALYSIS OF A CRACKED ROTOR WITH WHIRLING

李晓峰1, 许平勇1, 史铁林2, 杨叔子2   

  1. 1. Institute of Machinery and Electricity, Airforce Radar Academy, Wuhan 430019, P. R. China;
    2. School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
  • 收稿日期:2000-10-15 修回日期:2002-02-06 出版日期:2002-06-18 发布日期:2002-06-18
  • 基金资助:
    the National Ninth Five-Year "PanDeng" Preelection Project(PD9521908)

NONLINEAR ANALYSIS OF A CRACKED ROTOR WITH WHIRLING

LI Xiao-feng1, XU Ping-yong1, SHI Tie-lin2, YANG Shu-zi2   

  1. 1. Institute of Machinery and Electricity, Airforce Radar Academy, Wuhan 430019, P. R. China;
    2. School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
  • Received:2000-10-15 Revised:2002-02-06 Online:2002-06-18 Published:2002-06-18
  • Supported by:
    the National Ninth Five-Year "PanDeng" Preelection Project(PD9521908)

摘要: Nonlinear dynamics of a cracked rotor with whirling were analyzed and were compared to a rotor without whirling. Distinct differences have been found in bifurcation, amplitude, orbit and Poincare map when carrying on this comparison. Complicated dynamics may be found when a cracked rotor has its whirling speed. The results revealed may be useful in crack-early-detection and diagnosis.

Abstract: Nonlinear dynamics of a cracked rotor with whirling were analyzed and were compared to a rotor without whirling. Distinct differences have been found in bifurcation, amplitude, orbit and Poincare map when carrying on this comparison. Complicated dynamics may be found when a cracked rotor has its whirling speed. The results revealed may be useful in crack-early-detection and diagnosis.

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