架空导线用热塑性复合芯棒卷绕试验及仿真

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英文篇名：Winding Test and Simulation of Thermoplastic Composite Core for Overhead Conductor 作者：曾伟 英文作者：ZENG Wei;Shanghai Electric Cable Research Institute Co. Ltd.; 关键词：架空导线 ; 复合芯棒 ; 热塑性 ; 卷绕试验 英文关键词：overhead line conductors;;composite core;;thermoplastic;;winding test 中文刊名：CLDB 英文刊名：Materials Reports 机构：上海电缆研究所有限公司; 出版日期：2019-05-25 出版单位：材料导报 年：2019 期：v.33 语种：中文; 页：CLDB2019S1019 页数：4 CN：S1 ISSN：50-1078/TB 分类号：103-106

摘要

热塑性复合芯棒轴向抗拉能力较强,径向剪切性能、抗压性能较弱,在芯棒生产、运送、架线过程中易出现芯棒内部纤维受损失效的情况,存在安全隐患。目前,并无热塑性复合芯棒的卷绕力学性能方面的相关研究,考虑到热塑性复合芯结构和性能与目前的热固性复合芯棒差异较大,有必要对卷绕半径进行重新设计。对相同直径芯棒进行了卷绕试验,获得了卷轴直径的有效范围。利用ABAQUS软件建立芯棒卷绕仿真模型,通过有限元软件的数值计算,得到相同直径芯棒卷绕在不同直径的卷轴上时,芯棒内部的等效应力。研究结果表明,最大的等效应力集中分布在复合芯棒的最外侧,轴向拉/压应力随着卷轴半径的增大而减小。本研究可为架空导线用热塑性复合芯棒卷绕试验提供理论依据。
        The rmoplastic composite core has a strong axial tensile capacity, while the properties of radial shear resistance,compressive capacity are weak. In the process of manufacture, transport and stringing, fiber damage failure is easy to occur, and pose a safety hazard. At present, there is little research on the bending performance of carbon fiber reinforced thermoplastic composite core, considering the structure and properties of thermoplastic composite core and there are big gaps in thermoset composite core, it is necessary to redesign bending radius. A winding test was performed on the same diameter mandrel to obtain an effective range of the reel diameter. With ABAQUS software the bending simulation model is established. The same diameter mandrel winding inside the scroll of different diameter mandrel of the equivalent stress is obtained by numerical calculation of finite element software. The results show that the maximum equivalent stress is the most lateral concentration distribution in a composite mandrel, axial tensile stress or compressive stress decreases with the increases of the scroll radius. The research results provide a theoretical basis for winding test of carbon fiber reinforced thermoplastic composite core.

引文

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