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文章摘要
利用有限元法分析单芯光纤复合海缆扭转与光纤应变的关系
Finite Element Analysis for Judging the Torsion Degree of Fiber Composite Submarine Cables by Fiber Optical Strain
Received:July 07, 2016  Revised:August 05, 2016
DOI：
中文关键词: 光纤复合海缆  扭转  应变  应力  有限元
英文关键词: 
基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目）
Author NameAffiliationE-mail
Yang zhi Department of Electronic and Communication Engineering,North China Electric Power University yangzhi2698@163.com 
Liu Xiaohua* Department of Electronic and Communication Engineering,North China Electric Power University liuxiaohuahua@126.com 
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中文摘要:
      本文利用有限元方法建立了海缆扭转模型，对其进行网格划分、施加扭转载荷，模拟海缆不同角速度下的扭转过程，最终提取了铜导体和光单元的应力、应变数据，并对铜导体的径向和轴向应力、应变分布以及扭转速度与铜导体应力、应变的变化关系进行了分析。结果表明，在同一时刻铜导体径向应力、应变由内到外依次增大，轴向应力、应变分布与扭转角度大小有关；海缆以不同角速度扭转时，铜导体的应力、应变的变化与角速度呈现出一定的规律，整体趋势一致。最后，建立了光纤应变与铜导体应力的关系函数，为利用光纤传感技术监测海缆的扭转状态提供了理论依据。
英文摘要:
      
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