基于ANSYS软件的海上升压站上部组块吊耳的有限元分析

Finite Element Analysis of the Lifting Lug in Upper Part of an Offshore Booster Station with ANSYS Software

以某海上风电项目海上升压站上部吊耳为例,对比了理论计算与有限元计算的吊耳强度,理论计算结果偏保守。吊耳模型计算最好是建立与吊耳相连的结构进行稍大范围的局部分析。吊耳的布置角度对升压站主柱应力影响较大,差值在15%左右,对吊耳板的影响微乎其微,建议优先采取α=45°的方向进行吊耳布置。

Finite element analyses are carried out to determine the strength of the lifting lug in upper part of an offshore booster station.Comparison of the theoretical and numerical solutions show that the theoretical calculation result is conservative.It is suggested to build a slightly larger model of the lug and the connecting structure for the simulation.It is also found that the arrangement angle of the lug has a significant influence on the stress of the main column of the booster station with the difference of around 15%,while an insignificant influence on the lug plate.A 45°arrangement angle is preferred for the lug.