基于2D弹性理论的船舶板结构无网格技术  

An Analysis of the 2D Ship Structures Based on Meshless Local Petrov Galerkin

作　　者：陈建平[1] 徐曼平[1] 龚幼[1] 

机构地区：[1]广州航海学院船舶工程学院,广东广州510725

出　　处：《广州航海高等专科学校学报》2014年第4期1-3,7,共4页Journal of Guangzhou Maritime College

基　　金：广州市黄埔区科技计划项目(201445);广州航海学院自然科学基金重大专项(201312Z01);广州航海学院人才引进项目(201312003)

摘　　要：应用无网格局部Petrov-Galerkin法对船舶平直板结构进行了研究.运用最小二乘法和加权余量法来求解结构位移场量的逼近函数,给出了问题的控制方程和刚度方程.通过算例与有限元法计算结果进行了比较分析,验证了文章提出方法的正确性.文章研究对于分析船舶结构变形和应力具有良好的适用性.The paper employed the meshless local Petrov-Galerkin method to assess the ship structures stress analysis. The displacement field approximation function is obtained by employing Moving-least Square method,and the governing equation and the stiffness matrix of the structural are established. Numerical examples show the solutions are good agreement between FEM-ANSYS and the proposed approach, which verifies the validity of the presented method for stress analysis of the ship structural.

关 键 词：船舶结构 变形与应力 移动最小二乘法 无网格分析 

分 类 号：U661.42[交通运输工程—船舶及航道工程]