首页|海底电缆失效模式及稳态分析研究

海底电缆失效模式及稳态分析研究

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由于海洋环境复杂、恶劣,缆索在铺设时,除了受重力、浮力、惯性力和附加质量力等载荷影响外,还受到施工工况(如航速、放缆速度、流速分布等)影响.以水下缆索为研究对象,利用MATLAB软件对缆索在水下铺设和张拉2种情况下的受力状况进行数值仿真,分析缆索受力状况,揭示各种外部因素对缆绳张力的影响,并对缆绳在缆索上的受力情况进行精确预报.结果表明,海底电缆的最大拉力出现在海底平台内部的锚碇位置,除受海底电缆及其防护体本身的自重作用外,还受波浪和其他水动力因素的影响;垂直90°波浪对电缆的曲率和弯曲半径的影响更大,电缆的几何形状曲线会随电缆的加速而向外凸出.
Analysis of Failure Modes and Steady State of Submarine Cables
Due to the complex and harsh nature of the marine environment,cable laying is affected by not only loads such as gravity,buoyancy,inertial forces,and additional mass forces,but also construction conditions such as sailing speed,cable laying speed,and flow velocity distribution.This work focused on underwater cables and used MATLAB software to numerically simulate the force conditions of cables under two conditions of underwater laying and tensioning.The force conditions of cables were analyzed,revealing the influence of various external factors on cable tension,and accurately pre-dicting the force conditions of cables on cables.The results showed that the maximum tensile force of submarine cables oc-cured at the anchorage position inside the submarine platform,which was affected by not only the self weight of the sub-marine cable and its protective body,but also waves and other hydrodynamic factors.The vertical wave had a greater im-pact on the curvature and bending radius of the cable,and the geometric shape curve of the cable would protrude outward with the acceleration of the cable.

failure modesteady-state analysislinear analysistension calculation

刘多亚、史永晋

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中石化胜利石油工程有限公司钻井工艺研究院,山东 东营 257017

失效模式 稳态分析 线性分析 张力计算

2024

电工技术
重庆西南信息有限公司(原科技部西南信息中心)

电工技术

影响因子:0.177
ISSN:1002-1388
年,卷(期):2024.(20)