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首页> 外文期刊>Ocean Engineering >Mechanical behavior of submarine cable under coupled tension, torsion and compressive loads
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Mechanical behavior of submarine cable under coupled tension, torsion and compressive loads

机译：海底电缆在拉伸，扭转和压缩载荷作用下的机械性能

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Developing an offshore wind farms, the submarine cables are required as power transmission media to connect offshore wind farms and onshore substations. Axial forces are one of the main causes of the damage to the submarine cables which consist of spiral armor, sheath, insulation and conductors. In addition to the axial elongation when the cable was subjected to tensile loads, the helical armor also produces torque and the coupled tensile and torsional mechanical properties of the submarine cable should be analyzed. In a deep water environment, the effect of water pressure on cable stiffness is important and seldom investigation was made in the past. This paper studied in detail the mechanical behavior of submarine cables under coupled tensile, torsional and compressive loads. When the cable is located 4000 m below sea level, the coupled tensile, torsional and compressive loads may reduce the tensile stiffness as a whole to 30%. The coupling effects of tensile, torsional and compressive loads, therefore, must be carefully considered in analysis and design of the submarine cables.
机译：发展海上风电场时，需要海底电缆作为连接海上风电场和陆上变电站的动力传输介质。轴向力是损坏海底电缆的主要原因之一，海底电缆包括螺旋铠装，护套，绝缘材料和导体。电缆承受拉伸载荷时，除了轴向伸长外，螺旋铠装还会产生扭矩，因此应分析海缆的拉伸和扭转机械性能。在深水环境中，水压对电缆刚度的影响很重要，过去很少进行研究。本文详细研究了海缆在拉伸，扭转和压缩载荷作用下的力学行为。当电缆位于海平面以下4000 m处时，耦合的拉伸，扭转和压缩负载可能会将整个拉伸强度降低到30％。因此，在海底电缆的分析和设计中必须仔细考虑拉伸，扭转和压缩载荷的耦合效应。

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