基于有限元力矩阵精确确定三舱段有限元模型边界力的计算方法  

Numeral method for accurately determining the boundary forces of 3D FEM model of three cargo holds

作　　者：朱胜昌[1] 陈庆强[1] 

机构地区：[1]中国船舶科学研究中心,上海200011

出　　处：《船舶力学》2006年第1期71-79,共9页Journal of Ship Mechanics

摘　　要：双壳油船结构统一规范要求进行三舱段的有限元模型强度计算。本文采用有限元力矩阵节点力计算方法,可以精确计算确定三舱段的有限元模型两端部应施加的边界力(弯矩和剪力),为正确实施三舱段的有限元模型的边界力计算提供了实用的计算方法。3D FEM analysis of three cargo holds is required in common structural rules for double hull oil tankers. A numeral method is given to accurately determining the boundary forces on the ends of the FEM model by adjusting the force matrix of FEM equation. Using this method the required shear force and bending moment distribution along the model length can be produced, therefore a correct analysis results of FEM will be obtained.

关 键 词：船舶 结构 强度 有限元 

分 类 号：U661.43[交通运输工程—船舶及航道工程]