Optimization and Tensile Properties of Composite Insulator at High and Low Temperature

被引：0
|
作者：
Yan Z. [1 ]
Ma W. [2 ]
Zhang P. [1 ]
Qiu Z. [2 ]
机构：
[1] School of Architecture and Engineering, Chongqing University of Science & Technology, Chongqing
[2] School of Civil Engineering, Chongqing University, Chongqing
来源：
Xinan Jiaotong Daxue Xuebao/Journal of Southwest Jiaotong University | 2021年 / 56卷 / 01期
关键词：
Composite insulators; Fitting; Optimization; Preload; Tensile properties;
D O I：
10.3969/j.issn.0258-2724.20181032
中图分类号：
学科分类号：
摘要：
In order to find out the influence of high and low temperature and the crimping process between the core rod and the end fittings on the bearing capacity of composite insulator, and to get the final optimized crimping mode, the finite element simulation analysis was carried out on the high and low temperature tensile test results of the core rod and the end fittings.Firstly, the stress of the fittings and mandrels was simulated at normal temperature, and the results were in good agreement with the experimental data. Then, 10 kinds of crimping conditions were designed to evaluate the optimal preloading conditions of the end fittings of composite insulator. The results show that when the preloading stress is evenly distributed along the radial direction of the fittings and 18% − 25% of the length of the fittings is reserved, the bearing capacity of the composite insulator link is the best, and the elastic limit load of the optimal model is 8.23% higher than that of the existing manufacturers. The simulation method can also be used to simulate the mechanical properties of insulators at high and low temperature, but the compression optimization cannot improve the bearing capacity significantly. Copyright ©2021 JOURNAL OF SOUTHWEST JIAOTONG UNIVERSITY. All rights reserved.
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页码：56 / 61and83
页数：6127
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