基于后屈曲分析的V形复合绝缘子串风偏受力推导  

The windage yaw force derivation of V-shaped composite insulator string based on post buckling analysis

作　　者：向亚超 李黎[1] 曾香华 XIANG Yachao;LI Li;ZENG Xianghua(School of Civil Engineering and Mechanics,Huazhong University of Science and Technology,Wuhan 430074,China;The Fourth Harbour Engineering Investigation and Design Institute of China Communications Construction Co.,Ltd.,Guangzhou 510230,China)

机构地区：[1]华中科技大学土木工程与力学学院,湖北武汉430074 [2]中交第四航务工程勘察设计院有限公司,广东广州510230

出　　处：《武汉大学学报（工学版）》2022年第8期793-798,共6页Engineering Journal of Wuhan University

基　　金：国家电网公司2014年科技项目(编号:GC71-14-040)。

摘　　要：针对V形复合绝缘子串风偏受力和变形的问题,在ABAQUS通用有限元软件中,利用弧长法对单肢复合绝缘子进行大挠度后屈曲分析。在此基础上,对V形复合绝缘子串进行理论受力推导,并与已有的有限元计算结果进行对比验证。得到受力与变形的对应关系,并基于此提出V形复合绝缘子串新型设计方法。最后得出,V形复合绝缘子串设计夹角可以由目前的不小于最大风偏角的2倍变更为不超过应力及位移限值所对应的角度。Aiming at the problem of wind deflection force and deformation of V-shaped composite insulator strings, the post buckling analysis on a single composite insulator is carried out by using arc length method in the ABAQUS general finite element software. On this basis, the V-shaped composite insulators theoretical force is derived and compared with the existing calculation results of the finite element method(FEM). The relationship between the stress and deformation is obtained, and a new design method of V-shaped composite insulator string is proposed on this basis. Finally, it is concluded that the design angle of V-string can be changed from no less than 2 times of the maximum wind yaw angle to no more than the angle corresponding to stress and displacement limits.

关 键 词：风偏 后屈曲 V形复合绝缘子 理论推导 V形复合绝缘子串设计方法 

分 类 号：TM723[电气工程—电力系统及自动化] TM854