Stiffener Layout Optimal Design of the Grid-Stiffened Panels
This paper introduces the stiffener layout optimization of grid-stiffened panels using a topology optimization method. Considering the widely applications of grid-stiffened panels in aerospace, the paper proposes a new grid-stiffener method suitable for stiffener design of periodical grid-stiffened panels. On one hand, the definition of Representative Volume Element (RVE) by the super-element substructure makes it easy to associate the periodical grid-stiffened panels with local RVE. On the other hand, technology of variables related is applied to achieve the direction constraint of material layout and the objective function sensitivity calculation. With maximizing the structural stiffness, the optimal design of grid-stiffened panels was comparatively studied under different loadings and different volume constraints. Numerical examples show that the presented method can provide satisfactory results for grid stiffener layout.
topology optimization layout optimization stiffener panel Grid-stiffened panels periodical structure
Ao zhiqiang Sun Shiping Wang Yanchun
School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang, Jiangxi, China
国际会议
2010 International Conference on Circuit and Signal Processing(2010年电路与信号处理国际会议 ICCSP 2010)
上海
英文
512-515
2010-12-25（万方平台首次上网日期，不代表论文的发表时间）