Numerical Analysis for Galloping of Iced Quad Bundle Conductors
In order to attain the purpose of anti-galloping, a simplified model for iced quad bundle conductors of three degrees of freedom in vertical, horizontal and torsional directions is established by means of the Hamilton principle, in which the effect of spacers stiffness and damping is considered.Based on the model, the influence of related parameters such as fluid density, damping ratio on conductor galloping amplitude and critical wind velocity is analyzed.Simultaneously, the relation curve between elastic property of spacers and conductor galloping is obtained.The results indicate that the conductor galloping can be weakened to some degree with the proper enlargement of damping ratio, the reasonable setting of spring stiffness on spacers and the avoidance of areas such as the wind outlet and windward as much as possible when choosing the line path and so on.
Bundle conductors Galloping Spacers Anti-galloping
Junyan Cai Xijun Liu Suxia Zhang
School of Mechanical Engineering,Tianjin University,Tianjin 300072,China;Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control,Tianjin 300072,China
国际会议
上海
英文
30-34
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）