第22卷第12期 2014年12月
文章编号
1004-924X(2014)12-3272-08
光学精密工程
Optics and Precision Engineering
应用遗传算法优化设计机翼复合材料
蜂窝夹层结构蒙皮丁玲1.2，孙辉，费宏光1*，杨洪波
Vol. 22No, 12
Dec.2014
（1.中国科学院长春光学精密机械与物理研究所，吉林长春130033；2.中国科学院大学，北京100039）摘要：为提高无人机复合材料机翼蒙皮的强度，应用遗传算法优化设计了蜂窝夹层结构蒙皮的铺层。针对复合材料结构优化变量离收化的特点，设计了应用整数编码策略的遗传算法，并根据Tsai-Wu准则提出了适应度函数，参考复合材料的铺层原则给出了约束条件。然后，通过优化设计得到了最佳的蒙皮复合材料结构铺层方案。最后，通过有限元分析及静力试验验证了复合材料蜂窝夹层结构蒙皮设计的合理性。试验结果表明：左、右机翼翼梢的最大变形分别为116.02 mm和105.36mm，小于性能要求的180mm。探伤测试显示机翼复合材料结构没有出现损坏，满足机翼结构的工程指
标要求。此机翼结构的无人机已成功完成了首飞试验，验证了设计结果的可信及工程可用性。关键词：机翼蒙皮；复合材料；蜂窝央层；铺层顺序优化；遗传算法；蔡-关准则
中图分类号：V224；V257
文献标识码：A
doi:10, 3788/OPE. 20142212. 3272
Optimizationdesignofcompositewingskinwith
honeycombsandwichbygeneticalgorithm DING Ling"-,SUN Hui', JIA Hong-guang'·,YANG Hong-bo(l.Changchun Instituteof Optics,FineMechanics and Physics, Chinese Academy of Sciences,Changchun 130033,China;
2.University of Chinese Academy of Sciences,Beijing100039,China)
*Corresponding author,E-mail:jiahgciomp.ac.cn
Abstract: To inprove the strength of composite wing skin of a Unmanned Aerial Vehicle(UAV), the stacking sequence of honeycomb sandwich structure wing skin was designed optimally by a genetic al gorithm. According to the design variables' discrete characteristics of the composite, the genetic algo rithm based on an integral code strategy was presented. In consideration of the Tsai-Wu criterion, the fitness function was proposed and the constrain conditions were given by the stacking sequence princi-ple of composite laminate layout. Then, the optimized stacking sequence scheme for skin composite structure was obtained by optimization design. Finally, the rationality of the composite laminate lay out was verified by finite element analysis and static experiments, The experimental results show that the maximum deformations of the left and right wing tips are 116. 02 mm and 105. 36 mm,respective
收稿日期：2013-11-15；修订日期：2014-01-27.
基金项目：中国科学院三期知识创新工程资助项目（No.YYYJ-1122）