大型集装箱船舱段有限元强度分析

Finite Element Analysis on Primary Structures in Cargo Hold for Ultra-Large Container Ship

随着集装箱船的大型化,有限元计算已是必不可少的分析手段。舱段有限元分析的目的是根据实际装载的垂向弯矩计算,得出船舶中部构件的综合应力及变形。通过分析,得出船体主要纵向及横向的结构件尺寸。着重介绍利用MSC PATRAN和MSC/NASTRAN软件对某大型集装箱船的货舱舱段进行了结构强度的有限元分析。

Due to the trend of larger size of containership, finite element （FE） analysis became absolutely necessary. The objective of the cargo hold FE analysis was to calculate and assess the combined stresses and deformations in the mid-ship area under the vertical bending moment according to the realistic loading condition, based on which the structural strength of the primary longitudinal and transverse structure of the hull girder were validated. In this paper, finite element analysis on structure strength of cargo hold of a container vessel had been carried out using MSC PATRAN and MSC NASTRAN.