TY - JOUR
T1 - Analysis and tailoring design of stiffness-center of a high-ratio-aspect composite wing
AU - Dong, Yongpeng
AU - Huo, Shihui
AU - Hua, Lin
AU - Wang, Fusheng
AU - Yue, Zhufeng
PY - 2013/1/10
Y1 - 2013/1/10
N2 - A simple method was presented by means of FE software to fix on the location of stiffness-center axis of a high-ratio-aspect composite wing model. The most difference was 7.5%, comparing the results of FE method with that of theoretical method. It was applied to an example of engineering. The optimal design was carried out with the location of stiffness-center axis of a composite wing as objective function and static strength and stability as constraints. The design variables were the lay-up thickness of panel and spar web, and the cross-section area of stringer and spar edge. Through the iterative calculation by multi-island genetic algorithm and sequential quadratic programming, the optimized location of stiffness-center axis of composite wing model was obtained finally. Compared with that optimized before, the location of stiffness-center axis is closer to leading edge of the wing.
AB - A simple method was presented by means of FE software to fix on the location of stiffness-center axis of a high-ratio-aspect composite wing model. The most difference was 7.5%, comparing the results of FE method with that of theoretical method. It was applied to an example of engineering. The optimal design was carried out with the location of stiffness-center axis of a composite wing as objective function and static strength and stability as constraints. The design variables were the lay-up thickness of panel and spar web, and the cross-section area of stringer and spar edge. Through the iterative calculation by multi-island genetic algorithm and sequential quadratic programming, the optimized location of stiffness-center axis of composite wing model was obtained finally. Compared with that optimized before, the location of stiffness-center axis is closer to leading edge of the wing.
KW - Finite element(FE) method
KW - Multi-island genetic algorithm
KW - Optimization design
KW - Sequential quadratic programming
KW - Stiffness center axis
UR - http://www.scopus.com/inward/record.url?scp=84873965918&partnerID=8YFLogxK
U2 - 10.3969/j.issn.1004-132X.2013.01.011
DO - 10.3969/j.issn.1004-132X.2013.01.011
M3 - 文章
AN - SCOPUS:84873965918
SN - 1004-132X
VL - 24
SP - 52
EP - 55
JO - Zhongguo Jixie Gongcheng/China Mechanical Engineering
JF - Zhongguo Jixie Gongcheng/China Mechanical Engineering
IS - 1
ER -