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《Structure & Environment Engineering》 2005-01
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Aircraft wing structural layout study based on hierarchy optimization

DENG Yang-chen ZHANG Wei-hong ZHANG Yi-ning(1 Sino-French Laboratory of Concurrent Engineering Department of Aircraft Manufacturing Engineering,Northwestern Polytechnical University, Xi'an 710072, China)(2 Shen Yang Aircraft Design & Research Institute, Shengyang 110035, China)  
In order to study the optimal layout problem about aircraft wing conceptual design and offer a new design approach for practical aircraft engineering, the authors presented a strategy of hierarchy optimization and integrated idea, in which lied three layers. The first one belongs to topology optimization that determines the optimal number and position of wing' s beams. The second one is size optimization that gives the intermediate parameters of wing structure. The third one belonges to stability criterion optimization that finds the optimal number and position of wing' s ribs. During the hierarchy optimization, the first layer is an independent optimization and two last layers are coupled with each other. A practical aircraft wing is utilized as an example and the optimal results show that the proposed method is feasible. Therefore, the 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.
【Fund】: 中国博士后科学基金(2002032222);; 航空科学基金(03B53003);; 辽宁省科学技术基金(20044007)
【CateGory Index】: V224
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