Applied Mathematics and Mechanics (English Edition) ›› 2001, Vol. 22 ›› Issue (8): 940-946.

• 论文 • 上一篇    下一篇

STRETCH AND ROTATION OF A SUSPENDED CABLE SUBJECT TO TRANSVERSE FLUID EXCITATION

金栋平, 胡海岩   

  1. Institute of Vibration Engineering Research, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
  • 收稿日期:1999-05-17 修回日期:1999-11-01 出版日期:2001-08-18 发布日期:2001-08-18
  • 基金资助:
    “333 Talent Project” of Jiangsu Provincial Government;Aeronautical Science Foundation of China

STRETCH AND ROTATION OF A SUSPENDED CABLE SUBJECT TO TRANSVERSE FLUID EXCITATION

JIN Dong-ping, HU Hai-yan   

  1. Institute of Vibration Engineering Research, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
  • Received:1999-05-17 Revised:1999-11-01 Online:2001-08-18 Published:2001-08-18
  • Supported by:
    “333 Talent Project” of Jiangsu Provincial Government;Aeronautical Science Foundation of China

摘要: On the basis of analysis of the fluid drag acting on a suspended cable subjected to transverse fluid excitation, an expression is established for the fluid forces applied on the cable. By using a coordinate transform, the equations of motion of the cable are simplified into those in terms of the stretch and rotation coordinates. In the case of small ratio of sag-to-span, a study is made on the fluid-induced vibration behavior of the cable, including the critical fluid flow speed, the stability of equilibrium position, as well as the influences of gravitational parameter on the cable dynamics.

Abstract: On the basis of analysis of the fluid drag acting on a suspended cable subjected to transverse fluid excitation, an expression is established for the fluid forces applied on the cable. By using a coordinate transform, the equations of motion of the cable are simplified into those in terms of the stretch and rotation coordinates. In the case of small ratio of sag-to-span, a study is made on the fluid-induced vibration behavior of the cable, including the critical fluid flow speed, the stability of equilibrium position, as well as the influences of gravitational parameter on the cable dynamics.

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