大型复合材料结构实用优化设计技术研究  

Research on the utility of composite structure opitimization

作　　者：罗腾腾[1] 孙秦[1] 

机构地区：[1]西北工业大学航空学院,西安710072

出　　处：《机械设计与制造》2009年第6期200-201,共2页Machinery Design & Manufacture

摘　　要：充分利用复合材料的可设计性,设计出满足结构刚度强度以及气动弹性等性能指标要求且使结构重量更轻的飞行器结构。先应用几何建模软件CATIA进行飞行器尾翼结构几何外形的确定,接着应用大型工程软件Hypermesh进行了其结构的有限元模型的建立,并且应用了区域划分技术,然后在数值计算仿真的基础上,对飞行器结构的各构件几何参数实施了工程优化设计;针对其复合材料的三种经典铺层角度按照一定的铺层比例进行优化设计分析。因此总结出诸多有意义的实际工程应用经验。With the utilization of the composites material design-ability,the structure of aircraft can be designed more light,and meets all kinds of design requirement,such as stiffness,strength and aero-elasticity,etc.The thesis research work attempts an effective integrated technical route for modern structural design optimization,that is,creating structural geometrical model through CATIA,then transmitting the model to Hypermesh. By using Hypermesh software package the thesis sets up the finite element model of a developing composite structure and makes the region division. On the base of numerical computation,the geometric parameters of sections in the composite structure are all optimized. For the composite structural design optimization,the thesis analyises the result of optimization,Finally a set of preferable results for real engineering are obtained.

关 键 词：复合材料 优化 有限元 

分 类 号：TH12[机械工程—机械设计及理论] TB33[一般工业技术—材料科学与工程]