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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.36 No.1
- 발행연도
- 2020.1
- 수록면
- 31 - 45 (15page)
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초록· 키워드
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The purpose of this study is to develop an effective iterative two-stage method (ITSM) for structural damage identification of offshore platform structures. In each iteration, a new damage index, Modal Energy-Based Damage Index (MEBI), is proposed to help effectively locate the potential damage elements in the first stage. Then, in the second stage, the beetle antenna search (BAS) algorithm is used to estimate the damage severity of these elements. Compared with the well-known particle swarm optimization (PSO) algorithm and genetic algorithm (GA), this algorithm has lower computational cost. A modal energy based objective function for the optimization process is proposed. Using numerical and experimental data, the efficiency and accuracy of the ITSM are studied. The effects of measurement noise and spatial incompleteness of mode shape are both considered. All the obtained results show that under these influences, the ITSM can accurately identify the true location and severity of damage. The results also show that the objective function based on modal energy is most suitable for the ITSM compared with that based on flexibility and weighted natural frequency-mode shape.
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등록된 정보가 없습니다.
참고문헌 (53)
참고문헌 신청
M. Makki Alamdari / 2015 / Damage identification using 2-D discrete wavelet transform on extended operational mode shapes / Archives of Civil and Mechanical Engineering 15(3):698~710
Sara Casciati / 2017 / Damage localization in a cable-stayed bridge via bio-inspired metaheuristic tools / Structural Control and Health Monitoring 24(5):e1922
Young-Jin Cha / 2015 / Structural Damage Detection Using Modal Strain Energy and Hybrid Multiobjective Optimization / Computer-Aided Civil and Infrastructure Engineering 30(5):347~358
Marwa Chaabane / 2019 / Multivariate statistical process control-based hypothesis testing for damage detection in structural health monitoring systems / Structural Control and Health Monitoring 26(1):e2287
P. Cornwell / 1999 / APPLICATION OF THE STRAIN ENERGY DAMAGE DETECTION METHOD TO PLATE-LIKE STRUCTURES / Journal of Sound and Vibration 224(2):359~374
Sara Casciati / 2017 / Damage localization in a cable-stayed bridge via bio-inspired metaheuristic tools / Structural Control and Health Monitoring 24(5):e1922
Young-Jin Cha / 2015 / Structural Damage Detection Using Modal Strain Energy and Hybrid Multiobjective Optimization / Computer-Aided Civil and Infrastructure Engineering 30(5):347~358
Marwa Chaabane / 2019 / Multivariate statistical process control-based hypothesis testing for damage detection in structural health monitoring systems / Structural Control and Health Monitoring 26(1):e2287
P. Cornwell / 1999 / APPLICATION OF THE STRAIN ENERGY DAMAGE DETECTION METHOD TO PLATE-LIKE STRUCTURES / Journal of Sound and Vibration 224(2):359~374
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