分裂导线微风振动数值仿真

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (7) : 179-183.

论文

分裂导线微风振动数值仿真

陈元坤1 李黎2, 3 曹化锦2, 3

作者信息 +

Numerical Simulation of Aeolian Vibration for Bundle Conductor

CHEN Yuankun1 LI Li2 3 CAO Huajin2 3

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文章历史 +

摘要

基于流体动力学软件，采用二维圆柱绕流的计算方法，对分裂导线的微风振动进行了仿真分析。首先对于固定双圆柱绕流进行了仿真，与经典文献对比验证了本文模型以及计算方法的正确性,然后基于自编程序实现了分裂导线振动的流固耦合分析，研究了不同支撑，不同分裂导线间距以及不同分裂倾角下双分裂导线的振动特性，得到了各工况下的子导线竖向振幅随缩减风速的变化曲线，对分裂导线微风振动特性的研究具有重要意义。

Abstract

Based on the computational fluid dynamics (CFD), the method of a two-dimensional cylinder surrounded by unsteady wind flow was using to solve the aeolian vibration forb bundle conductor. Firstly, the analysis of unsteady flow around the fixed bundle conductor was carried out. The model and the analysis method were verified compared with the classical literature. Then based on the moving mesh technology and the programming, the vibration of the bundle conductor under the conditions of support case, spacing case and tilt angel case was studied. The vertical amplitude of the conductor with the reduced velocity of the cases was got and it is important for the research on aeolian vibration for bundle conductor.

导出引用

陈元坤李黎; 曹化锦;. 分裂导线微风振动数值仿真[J]. 振动与冲击, 2013, 32(7): 179-183

CHEN Yuankun LI Li CAO Huajin . Numerical Simulation of Aeolian Vibration for Bundle Conductor[J]. Journal of Vibration and Shock, 2013, 32(7): 179-183