渐进结构优化法的基本理论及应用

谢亿民; 杨晓英; G. P. Steven; O. M. Querin

渐进结构优化法的基本理论及应用

Victoria University of Technology, PO.Box 14428, Melboume City MC, Victoria 8001, Australia;2. The University of Sydney, NSW 2006, Australia

详细信息

中图分类号: TU31
计量
- 文章访问数: 1878
- HTML全文浏览量: 30
- PDF下载量: 552
出版历程
- 收稿日期: 1998-08-04
- 修回日期: 1998-01-27
- 刊出日期: 1999-11-14

THE THEORY AND APPLICATION OF EVOLUTIONARYSTRUCTURAL OPTIMISATION METHOD

Victoria University of Technology, PO. Box 14428, Melboume City MC, Victoria 8001, Australia;2. The University of Sydney, NSW 2006, Australia

摘要

摘要: 渐进结构优化法(Evolutionary Structural Optimization,简称ESO)是近年来兴起的一种解决各类结构优化问题的数值方法。它是基于这样一个简单概念:通过将结构中无效或低效的材料一步步去掉,剩下的结构将逐渐趋于优化。ESO 的特点在于简单,通用,优化的结构可为桁架,刚架,板壳或三维连续体,优化的约束条件包括应力,刚度,位移,频率及临界压力。本文阐述渐进结构优化法的基本原理和具体步骤,并以一系列算例演示该法的计算机实施过程,文章最后介绍了 ESO 的最新进展。
- 结构优化 /
- 有限元法 /
- 渐进法 /
- 计算力学
Abstract: Evolutionary Structural Optimisation (ESO) is a simple and robust numerical method for optimization problems of various structures. The basic idea of ESO is that by slowly removing inefficient material, the residual structure evolves towards an optimum. The significance of ESO is its simplicity and generality. It can be used for a wide range of structures including trusses, frames,plates/shells and 3D continua. The optimization constraints can be stresses,stiffnesses/displacements, frequencies or buckling loads.This paper introduces the theories,procedures and the latest techniques of ESO. A number of examples of engineering design problems are presented to demonstrate the capability and effectiveness of ESO.
- structural optimization /
- finite element method /
- evolutionary method /
- computational mechanics