摘要
给出了机翼承力结构在概念设计阶段的拓扑优化流程与方法。探讨了如何在机翼承力结构的概念设计阶段,合理地引入制造工艺约束,从而通过拓扑优化技术获得和传统拓扑优化技术相比实用性更强的薄壁盒式机翼结构。在优化过程中,根据需要引入了拔模约束、尺寸控制约束和初始设计约束,并通过Optistruct软件进行求解计算。对比分析了这些制造工艺约束对机翼承力结构的拓扑构型和优化计算收敛速度的影响。
A methodology and a procedure for topology optimization of wing structure based on manufacturing constraints were proposed. By the methodology and procedure proposed,topology of thin-box wing structure which is easier manufactured than traditional topology result can be obtained.The manufacturing constraints of drawdirection,member size control and inexcusable initial design were introduced into the optimal procedure and executed in Optistruct. Effect and efficiency were analyzed and compared with traditional topology optimization.
出处
《飞机设计》
2016年第5期15-18,共4页
Aircraft Design
基金
国家自然科学基金(11572204)
校博士启动基金(11YB27)
关键词
结构优化
拓扑优化
制造工艺约束
机翼结构
柔顺度
structural optimization
topology optimization
manufacturing constraints
wing structure
compliance
