噪声与振动控制

›› 2009, Vol. 29 ›› Issue (6): 91-96.DOI: 10.3969/j.issn.1006-1355.2009.06.091

• 论文 • 上一篇    下一篇

《准椭圆形覆冰导线驰振特性的实用计算方法》

马文勇，顾明，黄鹏   

  1. （同济大学土木工程防灾国家重点实验室，上海200092）
  • 收稿日期:2009-07-07 修回日期:1900-01-01 出版日期:2009-12-18 发布日期:2009-12-18
  • 通讯作者: 马文勇

《Calculation Method for Galloping Characteristics of Quasioval Iced Conductor》

MA Wen-yong,GU Ming,HUANG Peng   

  1. (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai200092, China)
  • Received:2009-07-07 Revised:1900-01-01 Online:2009-12-18 Published:2009-12-18
  • Contact: MA Wen-yong

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摘要：

基于高频天平风洞试验得到的准椭圆形覆冰导线的气动力系数，并依据考虑输电导线自振特性的单自由度驰振特性计算理论，分析了风速、垂跨比、跨度、导线直径等参数影响下该覆冰导线的驰振临界风速和驰振振幅，得到多个参数的对覆冰导线驰振特性的影响规律并总结出该准椭圆形覆冰导线驰振特性的实用计算方法。

关键词: 振动与波, 覆冰导线, 驰振临界风速, 驰振振幅

Abstract:

The quasioval iced conductor model was tested in TJ2 wind tunnel to obtain aerodynamic force coefficients by using HighFrequencyForce Balance (HFFB) technique. The calculating theory of galloping characteristics of SDOF is derived, which take account of natural vibration characteristics of transmission line. The effects of wind velocity, sagspanratio, span, conductor diameter on galloping critical wind velocity and amplitude are studied and approximate method to calculate galloping characteristic of quasioval iced conductor are presented at last.

Key words: vibration and wave, iced conductor, galloping critical wind velocity, galloping amplitude

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