摘要
针对分析模型精细化带来的大规模变量结构优化设计问题,深入系统地研究了大规模结构优化设计求解理论,并在HAJIF(航空结构强度分析与优化设计软件系统)中予以实现。HAJIF是一个十分有用的分析及优化软件,然而随着工程问题的日益庞大,该系统表现出设计规模受限的技术瓶颈,从而限制了它的广泛应用。本文通过一系列的理论改进突破了HAJIF系统中的一些关键问题,使得当前系统可处理设计变量达到10万量级。这些方法包括约束删除、约束区域化、变量处理、敏度分析等。
The scale of the optimization problem becomes larger and larger because of the refined FE model. This paper focused on solving this difficulty by a serious of efforts. HAJIF is a very useful tool for structural analysis and optimization for aircraft structures. HAJIF new version overcomes some key techniques encountered with aircraft engineering and offers some very attractive features. It can solve an optimization problem in excess of 100,000 variables. In the new version of HAJIF system,many methods such as constraint regionalization and deletion techniques are used for solution of the large-scale optimization problems.
出处
《工程与试验》
2016年第3期89-93,共5页
Engineering and Test
基金
中国航空工业集团创新基金(2013A62302R)
中国航空工业集团创新基金(2014A62340)
关键词
大规模结构优化
解析法
约束分区处理
数学规划法
large-scale optimization
analytical method
constraint regionalization
mathematical programming
