• CN:11-2187/TH
  • ISSN:0577-6686

›› 2002, Vol. 38 ›› Issue (5): 153-155.

• 论文 • 上一篇    

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大跨越导线自由振动的积分变换分析

缪建成;王海期   

  1. 沙洲工学院机电工程系;华中科技大学
  • 发布日期:2002-05-15

INTEGRAL ALTERNATE ANALYSIS OF THE LONGSPAN CONDUCTOR SYSTEMS FREE VIBRATION

Miao Jiancheng;Wang Haiqi   

  1. Shazhou University of Technology Huazhong Universily of Science and Technology
  • Published:2002-05-15

摘要: 超长输电线由于风力作用会产生涡激振动,危及导线正常工作。一般采用在导线特定位置安装阻尼防振锤的方法来减小导线的振幅,改善振型,计算导线系统的自由振动是研究微风防振的关键。采用积分变换法计算系统的自由振动,具有计算量小,振型表达式完整明确的优点。

关键词: 大跨越导线, 积分变换, 涡激振动, 自由振动分析, 表面粗糙度预测, 超声横向激振, 关键词:金刚石线锯, 硬脆材料, 振动切割, 中位/横向裂纹

Abstract: Vortex-induced vibration of over-head transmission line endanger the strand of conductor. The natural vibration of the line is usually calculated by transfer-matrix method. A integral alternate method is introduced to answer the natural vibration.

Key words: Longspan conductor, Natural vabration, Vortex-induced vibration, hard and brittle materials, Key words:diamond wiresaw, madian/radial cracks, surface roughness prediction, transverse ultrasound excitation, vibration cutting

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