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Numerical Study on Dynamic Swing of Suspension Insulator String in Overhead Transmission Line under Wind Load

机译:风载下架空输电线路悬挂式绝缘子弦动态摆动的数值研究。

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摘要

Numerical modeling of an overhead transmission line section and the digital simulation of stochastic wind field, to which the transmission line section is exposed, are presented. Time-domain analyses of typical transmission line sections in stochastic wind fields are carried out by ABAQUS software. It is discovered that the numerically determined dynamic swing angles of the suspension insulator strings in the transmission line sections are larger than those calculated with the formulas proposed in the technical code for designing overhead transmission lines. A dynamic wind load factor is suggested to be introduced into the formulas proposed in the design code.
机译:提出了架空输电线路截面的数值模拟和随机风场的数字仿真,该线路暴露在其中。利用ABAQUS软件对随机风场中典型输电线路截面进行时域分析。已经发现,在数值上确定的在传输线路部分中的悬挂绝缘子串的动态摆动角大于在用于设计架空传输线路的技术规范中提出的公式所计算的那些。建议将动态风荷载系数引入设计规范中建议的公式中。

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