大型矿砂船货舱段结构强度的有限元分析

大型矿砂船(VLOC)具有船体尺度大、载荷高等特点,对高应力区可能产生应力集中的重要结构构件、节点必须进行三维有限元强度计算分析。以250000 DWT大型矿砂船为研究对象,采用通用软件MSC/PATRAN建立舱段结构有限元模型,按照ABS船级社规范,使用SAFEHULL软件,实现了舱段结构强度的有限元计算分析,对货舱段主要构件进行了直接强度评估,保证了大型矿砂船船体结构的强度安全。

Finite Element Analysis on Primary Structures in Cargo Hold for VLOC

Due to the inherent characteristics of large scale and extreme heavy loadings for very large ore carriers （VLOC）, it was imperative to carry out the three-dimensional finite element analysis for primary structure members and connection joint located in potential high stress concentration regions. The finite element analysis for a 250 000 DWT VLOC was presented in this paper. A finite element model for cargo hold of the ship was set up via MSC/PATRAN software. According to the Rules of American Bureau of Shipping （ABS） ,the finite element analysis and calculations for structure strength of the cargo hold is conducted with SAFEHULL software,and a direct strength evaluation for the primary structures in cargo hold was performed to guarantee the structure safety.