摘要
将基于二次规划准解析法优化理论应用于机身结构优化设计中,建立机身结构优化模型。以机身重量为目标函数,考虑尺寸约束、强度约束和刚度约束,使优化后的机身结构不但满足强度要求,同时使优化后机翼机身对接接头的抗弯刚度与原准机保持一致。
The method of optimization theory based on dual method was applied to optimize fuselage structure, and the optimizing model of fuselage structure was established. The target function is the fuselage weight. There are three kinds of constraints： dimension, strength and bending rigidity. The numerical results show that the structural strength after fuselage structure was optimized is fit , and the bending rigidity of the main frame is the same as the real wing juncture. So this program can be used to design the fuselage structure in predesign.
出处
《机械强度》
CAS
CSCD
北大核心
2009年第5期828-831,共4页
Journal of Mechanical Strength
关键词
大型结构
最佳化
抗弯刚度
Large structure
Optimization
Bending rigidity
