| 超高压输电塔在覆冰断线作用下的动力响应 |
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| 引用本文： | 刘锐鹏,颜天佑,张耿斌,许志华,徐辉.超高压输电塔在覆冰断线作用下的动力响应[J].云南电力技术,2014(1):59-62. |
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| 作者姓名： | 刘锐鹏 颜天佑 张耿斌 许志华 徐辉 |
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| 作者单位： | [1]广州电力设计院,广州510075 [2]广州供电局有限公司输电管理所,广州510620 |
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| 摘 要： | 以某500 kV典型输电线路的塔-线体系为模型,借助非线性有限元软件ANSYS/LS-DYNA,在不考虑导线与地面碰撞接触的情况下,模拟不均匀覆冰工况下,四分裂子导线同时断裂、相继断裂两种工况下,断线冲击荷载对输电塔的动力效应.分析结果显示,塔头上的应力和位移动力效应明显,采用拟静力法计算断线冲击荷载是偏于不安全的.
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| 关 键 词： | 输电线路 不均匀覆冰 四分裂导线 冲击荷载 |
Research on the Dynamic Response of EHV Transmission Tower under Ruptured Icing Conduction |
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| LIU Ruipeng,YAN Tianyou,ZHANG Gengbin,XU Zhihua,XU hui.Research on the Dynamic Response of EHV Transmission Tower under Ruptured Icing Conduction[J].Yunnan Electric Power,2014(1):59-62. |
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| Authors: | LIU Ruipeng YAN Tianyou ZHANG Gengbin XU Zhihua XU hui |
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| Affiliation: | 1. Guangzhou Electric Power Design Institute, Guangzhou 510075 ; 2. Power Transmission Management Office of Guangzhou Power Supply Bureau Corporation, Guangzhou, 510620) |
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| Abstract: | Taking a typical 500 kV transmission tower - line system as an model, using nonlinear finite element software ANSYS / LS - DYNA, without considering the collision impact between the wire and the ground, simulates two breakage conductions of break- ing four sub - conductors at the same time and breaking sequentially under the uneven icing conduction, the dynamic effect of the conductor breakage impact load on the transmission tower is analyzed. The dynamic effects of stress and displacement of the tower head is obvious. |
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| Keywords: | Transmission line Uneven icing Four sub- conductors Impact load |
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