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| Concurrent subspace optimum method for metal stiffened panel |
| Received:November 26, 2018 Revised:February 21, 2019 |
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| DOI：10.7511/jslx20181126002 |
| KeyWord:stiffened panel layout optimization concurrent optimization global buckling local buckling |
| Author | Institution |
| 徐超 |
南京航空航天大学机械结构力学及控制国家重点实验室, 南京 |
| 姚卫星 |
南京航空航天大学机械结构力学及控制国家重点实验室, 南京 ;南京航空航天大学飞行器先进设计技术国防重点学科实验室, 南京 |
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| Abstract: |
| Based on the fact that the main failure modes of a stiffened panel are global buckling and local buckling,a concurrent optimization method for the layout of the stiffened panel is proposed.The design variables are divided into global design variables and local design variables.The two groups of variables are optimized concurrently in two subspaces,and then coordinated at the system level until convergence by means of repeated iterations.Two typical examples are reported in this paper.The results show that the proposed method has a clear optimization process,stable algorithm and reliable outcomes,and can obtain an optimal solution. |