洋流冲刷下的海底电缆动力学有限元分析  

Dynamic Finite Element Analysis of Submarine Cable under Ocean Current Scouring

作　　者：卢志飞[1,2] 何旭涛[1,2] 林晓波[1,2] 敬强[1,2] 吕安强[3] 冯雨珊 

机构地区：[1]国网浙江省电力公司舟山供电公司,浙江舟山316021 [2]浙江舟山海洋输电研究院有限公司,浙江舟山316021 [3]华北电力大学电子与通信工程系,河北保定071003

出　　处：《电线电缆》2017年第5期6-8,12,共4页Wire & Cable

摘　　要：利用ANSYS软件,采用直接流固耦合的方法建立了洋流冲刷海缆的三维有限元模型,采用FLUID142单元建立流体域,SOLID1185和SHELL181单元建立海缆本体固体域模型,通过定义流固耦合交界面实现流固耦合,完成洋流冲刷下的海底电缆动力学有限元建模。最后进行仿真计算,并对仿真结果数据进行提取和处理,获得了海缆各层结构的位移和应变数据。A three-dimensional finite element model of ocean current scouring submarine is established by means of ANSYS software and direct fluid-solid coupling method. The FLUID142 element was used to establish the fluid do-main. SOLID1185 and SHELL181 were used to establish submarine cable body solid domain model, fluid-solid cou-pling interface is defined to realize the fluid-solid coupling, and the finite element modeling of submarine cable under ocean current scouring is completed. Finally, the simulation is carried out, and the simulation results are extracted and processed. The displacement and strain data of the submarine cable layers were obtained.

关 键 词：海底电缆 洋流冲刷 流固耦合 动力学分析 有限元 

分 类 号：TM247[一般工业技术—材料科学与工程]