复合材料科学与工程Issue(11)：100-107,8.DOI:10.19936/j.cnki.2096-8000.20241128.014
复合绝缘横担大风工况有限元分析
Finite element analysis of composite insulating cross arms under high wing conditions
摘要
Abstract
In recent years,extreme weather has occurred frequently,posing great risks to the normal operation of the power grid.The use of new composite insulation cross arms has effectively improved the insulation performance and resistance to strong winds of transmission lines.This article investigates the displacement and stress of the 110 kV composite insulated cross arm structure under wind directions of 0°,90°,45°,and 60°.The research results show that the composite cross arm is generally stable and reliably connected at a design wind speed of 27 m/s.The maximum displacement occurs in the middle of the tie rod at 0° wind direction,reaching 16.95 mm,and the maxi-mum equivalent stress is located on the connecting component on the tower side of the 0°wind direction,with a val-ue of 81.21 MPa.By changing the wind speed through the lifting and lowering method,the maximum wind speed for stable operation is predicted to be about 31 m/s,which has the ability to resist level 11 storms.关键词
复合绝缘横担/机械性能/大风工况/有限元分析/复合材料Key words
composite insulating cross arm/mechanical properties/high wind condition/finite element analy-sis/composites分类
通用工业技术引用本文复制引用
蔡炜,刘敬华,吴雄,李健,孙启刚..复合绝缘横担大风工况有限元分析[J].复合材料科学与工程,2024,(11):100-107,8.基金项目
国家电网公司科技项目"提升老旧输电线路抗冰和抗台能力的复合绝缘横担关键技术及应用研究"专项基金(SGSDJYOOSJJSS2100044) （SGSDJYOOSJJSS2100044）
