摘要
为了探讨飞机翼面结构主要纵横骨架的最佳布局问题 ,并提供符合工程实际的、用于概念设计阶段的飞机结构设计方法 ,本文采用分级优化与集成的策略 ,该策略分为 3个层次。第一个层次为拓扑优化 ,并由此确定纵向骨架的个数与位置的最优布局 ;第二个层次为尺寸优化 ,它用来确定翼面的中间参数 ;第三个层次为稳定性准则优化 ,它确定横向骨架的个数与位置的最优布局。在分级优化的 3个层次中 ,拓扑优化是独立的 ,尺寸优化与稳定性准则优化是相互耦合的。以国外某飞机机翼为例 ,结果表明本文提出分级优化的思路与所采用的集成方法是可行的 ,并且具有很好的数值效果。作者认为 :它对从事飞机结构设计的人员有一定的指导性和参考价值 ,值得在飞机设计部门推广应用。最后 ,总结给出
In order to study the optimal layout problem about aircraft wing conceptual design and offer a new design approach for practical aircraft engineering, authors presented a strategy of hierarchy optimization and integrated idea, in which three layers were included. The first one belonged to topology optimization that determined the optimal number and position of wing spars. The second one belonged to size optimization that determined the intermediate parameters of wing structure. The third one belonged to stability criterion optimization that determined the optimal number and position of wing ribs. During the hierarchy optimization, the first layerwas an independent optimizationand the last two layers were coupled with each other. A practical aircraft wing was utilized as an example and the optimal results showed that the proposed method was feasible. Therefore, authors supposed that it could give some advice and direction to aircraft designers. Finally five useful conclusions could be drawn from this research work, so the method is deserved to application in structure design department.
出处
《飞机设计》
2004年第2期28-36,共9页
Aircraft Design
基金
中国博士后基金 ( 2 0 0 2 0 3 2 2 2 2 )"
"航空科学基金 ( 0 3B5 3 0 0 3 )"
"中航一集团第 60 1研究所‘十五’预研项目---基于拓扑优化技术的机翼结构布局设计技术研究 ( 2 0 0 1-JGCL -5 )"
"西北工业大学研究生创业种子基金 ( 2 0 0 3 0 0 5 7)"的部
关键词
布局
层次
个数
指导性
文采
结论
实际
飞机翼面
飞机结构
飞机设计
s:hierarchy optimization
topology optimization
size optimization
stability criterion optimization
integrated method
aircraft wing structural layout
