Finite Element Analysis for Bending Degree of Fiber Composite Submarine Cable by Optical Unit Strain

JU Sen; YANG Zhi; LIU Xiao-hua

doi:10.13756/j.gtxyj.2016.05.012

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Finite Element Analysis for Bending Degree of Fiber Composite Submarine Cable by Optical Unit Strain

- Finite Element Analysis for Bending Degree of Fiber Composite Submarine Cable by Optical Unit Strain
- Study on Optical communication Issue 5, Pages: 39-42(2016)
- 作者机构：
  
  华北电力大学电子与通信工程系
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2016.05.012
  CLC： P756.1
- Published：2016，
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[1]鞠森,杨志,柳小花.光纤复合海缆弯曲与光单元应变关系的有限元分析[J].光通信研究,2016(05):39-42.

JU Sen, YANG Zhi, LIU Xiao-hua. Finite Element Analysis for Bending Degree of Fiber Composite Submarine Cable by Optical Unit Strain. [J]. (5):39-42(2016)
[1]鞠森,杨志,柳小花.光纤复合海缆弯曲与光单元应变关系的有限元分析[J].光通信研究,2016(05):39-42. DOI： 10.13756/j.gtxyj.2016.05.012.

JU Sen, YANG Zhi, LIU Xiao-hua. Finite Element Analysis for Bending Degree of Fiber Composite Submarine Cable by Optical Unit Strain. [J]. (5):39-42(2016) DOI： 10.13756/j.gtxyj.2016.05.012.

摘要

采用有限元法建立了光纤复合海缆的弯曲模型

进行了网格划分和载荷施加

得到了铜导体、铅合金和光单元的应力、应变数据

详细分析了海缆的整个弯曲过程。利用最小二乘法建立了弯曲过程中铜导体、铅合金应力与光单元应变的关系。结果表明

相同弯曲角速度、不同弯曲半径下

同一结构内外侧应力的大小相等

方向相反;海缆以不同弯曲半径发生弯曲时

各结构应力的整体变化趋势一致。研究成果为利用光纤传感技术监测海缆弯曲状态提供了理论参考。

Abstract

The finite element bending model of fiber composite submarine cable is established in this paper.By meshing and applying load

the paper obtains the stress and strain data of copper and lead alloy.The whole bending process of submarine cable bending is analyzed in detail.In addition

the paper uses the least square method to establish the relationship between the optical unit strain and the copper and lead alloy stress.The result shows that the same cross-sectional structure at the same outer stress have the same equal and opposite directions under the same bending angular velocity and different bending radius conditions.The change of structure stress has similar trends when it bending with different radius.The investigation provides a theoretical reference for use of distributed optical fiber sensing technology in detection of submarine cable bending state.

关键词

海缆弯曲应变有限元

Keywords

submarine cablebendingstrainfinite element

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