一种特制集装箱结构优化设计有限元分析  

Finite element analysis of a structure optimization of an handtailored container

作　　者：程钢[1] 史宝军[1] 

机构地区：[1]山东建筑大学机电工程学院,山东济南250101

出　　处：《山东建筑大学学报》2010年第4期355-358,共4页Journal of Shandong Jianzhu University

基　　金：国家自然科学基金项目(50775132);山东省中青年科学家奖励基金项目(BS2009CL047)

摘　　要：优化技术在工程中的应用是集装箱结构优化设计的前提和基础。针对一种特制集装箱箱体的结构和承载特点,建立了三维有限元模型,对该集装箱框架结构进行了静力分析,得到了结构的应力和变形分布。在对箱体应力水平偏高和变形较大进行分析的基础上,提出了相应的优化设计。结果表明:(1)优化设计后该集装箱的最大变形量由62mm降低到38mm;(2)最大Von Mises应力由248MPa降低到190.4MPa,最大剪应力由82.59MPa降低到64.59MPa;(3)最大normal moments tensor由168.7MPa降低到89.38MPa,最大shear momentstensor由123.1MPa降低到86.96MPa。这说明经优化设计后集装箱的变形及应力大幅降低,结构的最大应力均未超过材料的屈服强度,能满足强度及刚度设计要求。Optimization is the premise and basis of the container structure design in engineering technology according to structural and loading characteristics of an handtailored container,a 3-dimensional solid model is established on which finite element static analysis is made.Obtained results are displacement,equivalent stress and strain of the container.The weak spats of intensity are found and corresponding improved schemes are brought forward as well.Further finite element analysis results show that the maximum deformation of the container reduces from 62mm to 38mm and the maximum Von Mises stress from 248 MPa to 190.4 MPa;the maximum shear stress reduces from 82.59 MPa to 64.59 MPa,the maximum normal moments tensor from 168.7 MPa to 89.38 MPa and the maximum shear moments tensor reduced 123.1 MPa to 86.96 MPa.This shows that the deformation and stress of the container reduce significantly by using optimized design.The maximum stress does not exceed the material＇s yield strength only to meet the requirements of strength and stiffness.

关 键 词：集装箱 有限元分析 优化设计 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]