RESPONSE CHARACTERISTICS OF WIND EXCITED CABLES WITH ARTIFICIAL RIVULET

Applied Mathematics and Mechanics (English Edition) ›› 2002, Vol. 23 ›› Issue (10): 1176-1187.

RESPONSE CHARACTERISTICS OF WIND EXCITED CABLES WITH ARTIFICIAL RIVULET

顾明¹, 刘慈军¹, 徐幼麟², 项海帆¹

1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P. R. China;
2. Department of Civil & Structural Engineering, Hong Kong Polytechnic University, Hong Kong, P. R. China

收稿日期:2000-06-03 修回日期:2001-04-11 出版日期:2002-10-18 发布日期:2002-10-18
基金资助:
the National Natural Science Foundation of China(50178049);the National Natural Science Foundation of China for Outstanding Young Scientists

RESPONSE CHARACTERISTICS OF WIND EXCITED CABLES WITH ARTIFICIAL RIVULET

GU Ming¹, LIU Ci-jun¹, XU You-lin², XIANG Hai-fan¹

1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P. R. China;
2. Department of Civil & Structural Engineering, Hong Kong Polytechnic University, Hong Kong, P. R. China

Received:2000-06-03 Revised:2001-04-11 Online:2002-10-18 Published:2002-10-18
Supported by:
the National Natural Science Foundation of China(50178049);the National Natural Science Foundation of China for Outstanding Young Scientists

摘要/Abstract

摘要： A wind tunnel investigation of response characteristics of cables with artificial rivulet is presented. A series of cable section models of different mass and stiffness and damping ratio were designed with artificial rivulet. They were tested in smooth flow under different wind speed and yaw angle and for different position of artificial rivulet. The measured response of cable models was then analyzed and compared with the experimental results obtained by other researchers and the existing theories for wind-induced cable vibration. The results show that the measured response of horizontal cable models with artificial rivulet could be well predicted by Den Hartog’s galloping theory when wind is normal to the cable axis. For the wind with certain yaw angles, the cable models with artificial rivulet exhibit velocity-restricted response characteristics.

关键词: cable, artificial rivulet, wind tunnel, galloping, velocity-restricted vibration

Abstract: A wind tunnel investigation of response characteristics of cables with artificial rivulet is presented. A series of cable section models of different mass and stiffness and damping ratio were designed with artificial rivulet. They were tested in smooth flow under different wind speed and yaw angle and for different position of artificial rivulet. The measured response of cable models was then analyzed and compared with the experimental results obtained by other researchers and the existing theories for wind-induced cable vibration. The results show that the measured response of horizontal cable models with artificial rivulet could be well predicted by Den Hartog’s galloping theory when wind is normal to the cable axis. For the wind with certain yaw angles, the cable models with artificial rivulet exhibit velocity-restricted response characteristics.

Key words: cable, artificial rivulet, wind tunnel, galloping, velocity-restricted vibration

中图分类号:

U442

顾明;刘慈军;徐幼麟;项海帆. RESPONSE CHARACTERISTICS OF WIND EXCITED CABLES WITH ARTIFICIAL RIVULET[J]. Applied Mathematics and Mechanics (English Edition), 2002, 23(10): 1176-1187.

GU Ming;LIU Ci-jun;XU You-lin;XIANG Hai-fan. RESPONSE CHARACTERISTICS OF WIND EXCITED CABLES WITH ARTIFICIAL RIVULET[J]. Applied Mathematics and Mechanics (English Edition), 2002, 23(10): 1176-1187.

参考文献

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RESPONSE CHARACTERISTICS OF WIND EXCITED CABLES WITH ARTIFICIAL RIVULET

RESPONSE CHARACTERISTICS OF WIND EXCITED CABLES WITH ARTIFICIAL RIVULET

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