大型复杂结构优化问题的遗传算法

大型结构的整体优化问题一般具有多目标、多约束和多混合变量的特点，自由度多达千计，其算法的速度和效率是问题的关键所在．遗传算法是求解大规模函数优化问题的有力工具，在复杂结构的优化设计问题中得到广泛应用．本文介绍了遗传算法的基本思想、特点，阐述近年来遗传算法在结构优化设计及其相关领域的应用现状和重要发展．

Genetic Algorithm for Optimization of Large and Complicated Structures

Optimization problems of large and complicated structures are generally of multi objects, multi constraints and multi mixed variables. The speed and efficiency of the algorithm is very important for solving the problems. Genetic algorithm is identified to be a powerful tool for large scale function optimization and it is being rapidly deve loped and applied to structural optimization problems in recent years. In present article, an outline of basic concepts and procedures of genetic algorithm are given. The developments and applications of genetic algorithm in the structural optimization designs and relative fields are reviewed. The future directions and further topic needed to be studied are also pointed out.