中文说明：
分析传统双向渐进结构优化方法（Bi-directional evolutionary structural optimization，简称BESO）存在不足的基础上，针对性的对数值计算进行了合理的改进。并在此基础上分别对宏观结构、微结构优化、材料/结构一体化等相关问题进行了多尺度、多相复合材料布局及拓扑优化等层次系统地研究。
English Description：
Analysis of the traditional bi-directional evolutionary structural optimization method (Bi - directional evolutionary structural optimization, BESO) shortcomings, on the basis of corresponding numerical calculation for the reasonable improvement.Based on the optimization of macrostructure, microstructure, material/structure integration and so on related question has carried on the multi-scale and topology optimization of multiphase composite material layout and system level.