Studies on the influence of spar position on aeroelastic optimization of a large aircraft wing  

作　　者：WAN ZhiQiang LIU DongYue TANG ChangHong YANG Chao 

机构地区：[1]School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China

出　　处：《Science China(Technological Sciences)》2012年第1期117-124,共8页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No.10902006);the Doctoral Program Foundation of Institutions of Higher Education of China (Grant No.20091102110015)

摘　　要：Aeroelastic problems are encountered at the preliminary design stage of flexible wings for large aircraft. A three-dimensional finite element model of a high-aspect-ratio wing was built, and the influence of the front and rear spar positions on the results of the aeroelastic analysis and optimization was studied to improve the wing structure desgin. The most feasible and optimal solutions were effectively obtained by aeroelastic optimization. In particular, the position parameter of the front spar has a greater influence on the aeroelastic analysis and optimization than the rear spar. In addition, some key constraints became re- strictive leading to a rapid increase in the structural weight. Therefore, reasonable constraints were necessary for the optimization of results.

关 键 词：large aircraft aeroelasticity optimization design high-aspect-ratio wing spar 

分 类 号：TH[机械工程]