整船准静态分析的有限元模型自动加载及载荷修正技术  

Techniques of Auto - loading and Amending External Node Forces for Whole Hull Model in F. E. M. Strength Calculation

作　　者：朱胜昌[1] 陈庆强[1] 江南[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》1999年第5期47-54,共8页Journal of Ship Mechanics

摘　　要：在对船体进行整船有限元强度准静态分析时，需要用外载荷作用力对模型进行加载，本文开发了对有限元模型外载荷进行自动加载的方法，这种方法不需要对模型结构进行附加的点、线、面数据定义，而只需要利用有限元的原始输人数据。本文还讨论了如何进行节点集中载荷修正和惯性力平衡计算，它是保证整船有限元准静态分析获得正确结果的关键。When analyzing the finite element strength of the whole hull under qUasi - static state condition, external loading forces should be loaded to the module. In this paper, we developed a method of auto - loading external forceto the finite element module.This method do not need defining additional data of points line and surface of the medule structure, and only the original data of the finite elements are needed. Queshons of how to amend nodal forces and how to calculate inertia forces are also discussed in this paper. It is the key to get an exact result whenanalyzing finite element strength of the whole hull under the quasi - static state condition.

关 键 词：载荷 有限元 强度 船舶 准静态分析 自动加载 

分 类 号：U661.43[交通运输工程—船舶及航道工程] U661.72[交通运输工程—船舶与海洋工程]