지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.26 No.4
- 발행연도
- 2020.1
- 수록면
- 451 - 468 (18page)
이용수
초록· 키워드
오류제보하기
Although model updating has been widely applied using a specific optimization algorithm with a single objective function using frequencies, mode shapes or frequency response functions, there are few studies that investigate hybrid optimization algorithms for real structures. Many of them did not take into account the sensitivity of the updating parameters to the model outputs. Therefore, in this paper, optimization algorithms and sensitivity analysis are applied for model updating of a real cable-stayed bridge, i.e., the Kien bridge in Vietnam, based on experimental data. First, a global sensitivity analysis using Morris method is employed to find out the most sensitive parameters among twenty surveyed parameters based on the outputs of a Finite Element (FE) model. Then, an objective function related to the differences between frequencies, and mode shapes by means of MAC, COMAC and eCOMAC indices, is introduced. Three metaheuristic algorithms, namely Gravitational Search Algorithm (GSA), Particle Swarm Optimization algorithm (PSO) and hybrid PSOGSA algorithm, are applied to minimize the difference between simulation and experimental results. A laboratory pipe and Kien bridge are used to validate the proposed approach. Efficiency and reliability of the proposed algorithms are investigated by comparing their convergence rate, computational time, errors in frequencies and mode shapes with experimental data. From the results, PSO and PSOGSA show good performance and are suitable for complex and time-consuming analysis such as model updating of a real cable-stayed bridge. Meanwhile, GSA shows a slow convergence for the same number of population and iterations as PSO and PSOGSA.
목차
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참고문헌 (42)
참고문헌 신청
Ahmet C. Altunisik / 2017 / Manual model updating of highway bridges under operational condition / Smart Structures and Systems, An International Journal 19(1):39~46
Cosmin Anitescu / 2019 / Artificial Neural Network Methods for the Solution of Second Order Boundary Value Problems / Computers, Materials & Continua 59(1):345~359
Oreste S. Bursi / 2015 / Global Sensitivity-Based Model Updating for Heritage Structures / Computer-Aided Civil and Infrastructure Engineering 30(8):620~635
Bui, T. T. / 2011 / Experimental report of a plain pipe
Francesca Campolongo / 2007 / An effective screening design for sensitivity analysis of large models / Environmental Modelling & Software 22(10):1509~1518
Cosmin Anitescu / 2019 / Artificial Neural Network Methods for the Solution of Second Order Boundary Value Problems / Computers, Materials & Continua 59(1):345~359
Oreste S. Bursi / 2015 / Global Sensitivity-Based Model Updating for Heritage Structures / Computer-Aided Civil and Infrastructure Engineering 30(8):620~635
Bui, T. T. / 2011 / Experimental report of a plain pipe
Francesca Campolongo / 2007 / An effective screening design for sensitivity analysis of large models / Environmental Modelling & Software 22(10):1509~1518
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