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Redundancy Optimization of Finite-Dimensional Structures: Concept and Derivative-Free Algorithm
| 题名： | Redundancy Optimization of Finite-Dimensional Structures: Concept and Derivative-Free Algorithm |
| 正文语种： | 英文 |
| 作者： | Yoshihiro Kanno |
| 作者单位： | Tokyo Institute of Technology |
| 关键词： | Robustness; Redundancy; Resilience; Uncertainty; Derivative-free optimization; Simplex gradient; Structural optimization. |
| 摘要： | Redundancy is related to the amount of functionality that the structure can sustain in the worst-case scenario of structural degradation. This paper proposes a widely-applicable concept of redundancy optimization of flnite-dimensional structures. The concept is consistent with the robust structural optimization and with the quantitative measure of structural redundancy on the basis of the informationgap theory. A derivative-free algorithm is proposed on the basis of the sequential quadratic programming (SQP) method, in which the finite-difference method that adaptively varies the difference increment is used. Preliminary numerical experiments show that an optimal solution of the redundancy optimization problem possibly has multiple worst-case scenarios. DOI: 10.106l/(ASCE)ST.1943-541X.0001630.© 2016 American Society of Civil Engineers. |
| 出版日期： | 2017.01 |
| 出版年： | 2017 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.143 |
| 期： | NO.01 |
| 页码： | 04016151 |
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