浅水铺管船托管架连接点损伤分析和优化设计

针对由特厚高强度钢板组焊而成的托管架连接点结构在实际工程中的损伤情况,文中通过对典型工况下铺管船托管架、铺设管线和船体的整体有限元分析及损伤区域局部有限元分析,利用ABAQUS/Explicit显式分析方法,对最大环境载荷及操作载荷下的构件进行应力分析和低频冲击载荷分析,探讨了结构变形和损伤产生的原因和设计的优化方向。

Damage analysis and optimization design of hitch point structure in stinger of shallow water pipelaying barge

According to the damage situation of the stinger Hitch Point structure which is welded by the thick high-strength steel plates during the practical projects, this paper carries out the overall finite element analysis of the stinger of pipelaying barge, laid pipelines and hull under typical operation condition, and local finite element of the damaged area. It performs the stress analysis of the components under maximum environmental load and operating load and low-frequency impact load analysis by using explicit analysis method ABAQUS/Explicit. It also discusses the reasons causing structure deformation and damage, and design optimization direction.