纤维增强树脂基复合材料结构的优化设计

Optimum Design of Fiber Reinforced Graphite/Epoxy Composite Structures

综述了国内外纤维增强树脂基复合材料结构优化设计的研究成果与发展状况，内容涉及到层合板壳结构以及夹层结构的屈曲、振动、可靠性、结构强度以及多级多目标等问题的优化设计。文中还涉及到发动机复合材料构件优化方面的一些研究成果，给出了其优化设计的网络框图。论文最后对复合材料结构优化设计当前存在的主要问题和今后发展方向作了分析，并指出今后的研究方向：（１）多级多目标多学科的优化设计，不仅涉及到基本理论、建模和方法，而且更加强调工程实际问题；（２）发展相应的软件专家系统，更加强调软件面向对象编程和 Ｃ Ａ Ｄ 技术的应用；（３）注重探究快速有效的优化算法以及探究随机优化和可靠性优化技术，从而快速有效地获得对优化设计点的可靠评价等。

The optimum design of composite structures is not only a basic theoretical research and applied basic research, but also a design technology widely applied for engineering.The research results and development are summarized. In the optimum designs of fiber reinforced graphite/epoxy composite structures, which deals with the bucking, vibration, reliability based, strength, multilevel as well as multiobjective optimum designs of laminate plate, laminate shell and sandwich structures. Some researches on the optimum designs of aero engine composite structures are discussed as well. Finally, the main existing problems and the future research in composite optimization designs are analyzed. It is pointed out that: (1) the optimum design of multilevel and multiobjective as well as multidis′ciplinary problems not only deals with the basic theory,modelling and optimum methods, but also emphasizes on solving engineering problems; (2)the development of software expert systems will stress to use the technology of orientated objective programming and CAD;(3) it will be taken much attention to the development of fast and efficient optimum algorithm, as well as the design technology of random optimum and reliability based optimum so as to obtain quickly and efficiently the reliable evaluations of design values, and so on.