新月形覆冰八分裂导线舞动特征研究

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (18) : 183-189.

论文

新月形覆冰八分裂导线舞动特征研究

周林抒1，严波1,2，张亮1，周松3

作者信息 +

Study on Galloping Behavior of Eight Bundle Conductors with Crescent-shaped Ice

Zhou Linshu1, Yan Bo1,2, Zhang Liang 1, Zhou Song3

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文章历史 +

摘要

通过风洞试验测量得到典型新月形覆冰八分裂导线各子导线的空气动力系数随风攻角的变化曲线。由于尾流干扰的作用，各覆冰子导线的气动特性存在明显差异。基于得到的覆冰导线的气动参数，利用ABAQUS有限元软件，模拟典型覆冰八分裂线路的舞动过程，分析得到不同档距线路在不同风速、初始风攻角以及导线初始张力等条件下的运动轨迹、振动频率、模式和幅值等舞动特征。所得结果对覆冰八分裂导线舞动特征的认识以及舞动防治技术的开发具有重要的价值。

Abstract

The aerodynamic coefficients of the iced crescent shape conductor models varying with angle of wind attack were obtained by wind tunnel test. The aerodynamic characteristics of iced eight bundled conductor may be more complicated due to the wake interference around the sub-conductors. Based on the aerodynamic coefficients and ABAQUS software, galloping behavior, such as dynamic responses, galloping orbits, frequencies, vibration modes and amplitudes of typical iced eight bundle conductor transmission lines in the cases of different span lengths, initial tensions in sub-conductors, wind velocities and angles of wind attack is studied. These results provide galloping behavior recognitions of iced eight bundled conductors and development of anti-galloping technology.

关键词

覆冰八分裂导线 / 空气动力特性 / 风洞试验 / 舞动

Key words

iced eight bundled conductor

/ aerodynamic characteristics / wind tunnel test / galloping

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导出引用

周林抒1，严波1,2，张亮1，周松3. 新月形覆冰八分裂导线舞动特征研究[J]. 振动与冲击, 2015, 34(18): 183-189

Zhou Linshu1, Yan Bo1,2, Zhang Liang 1, Zhou Song3. Study on Galloping Behavior of Eight Bundle Conductors with Crescent-shaped Ice[J]. Journal of Vibration and Shock, 2015, 34(18): 183-189

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