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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.24 No.2
- 발행연도
- 2019.1
- 수록면
- 233 - 242 (10page)
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초록· 키워드
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In this paper, an inverse approach based on uniform load surface (ULS) is presented for structural damage localization and quantification. The ULS is excellent approximation for deformed configuration of a structure under distributed unit force applied on all degrees of freedom. The ULS make use of natural frequencies and mode shapes of structure and in mathematical point of view is a weighted average of mode shapes. An objective function presented to damage detection is discrepancy between the ULS of monitored structure and numerical model of structure. Solving this objective function to find minimum value yields damage’s parameters detection. The teaching-learning based optimization algorithm has been employed to solve inverse problem. The efficiency of present damage detection method is demonstrated through three numerical examples. By comparison between proposed objective function and another objective function which make use of natural frequencies and mode shapes, it is revealed present objective function have faster convergence and is more sensitive to damage. The method has good robustness against measurement noise and could detect damage by using the first few mode shapes. The results indicate that the proposed method is reliable technique to damage detection in structures.
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등록된 정보가 없습니다.
참고문헌 (32)
참고문헌 신청
M. Basu / 2014 / Teaching–learning-based optimization algorithm for multi-area economic dispatch / Energy 68:21~28
E. Peter Carden / 2016 / Vibration Based Condition Monitoring: A Review / Structural Health Monitoring: An International Journal 3(4):355~377
Nicolò Corrado / 2015 / Damage localisation in delaminated composite plates using a Gaussian process approach / Meccanica 50(10):2537~2546
Wei Fan / 2010 / Vibration-based Damage Identification Methods: A Review and Comparative Study / Structural Health Monitoring: An International Journal 10(1):83~111
Laleh Fatahi / 2016 / Multiple crack identification in frame structures using a hybrid Bayesian model class selection and swarm-based optimization methods / Structural Health Monitoring: An International Journal 17(1):39~58
E. Peter Carden / 2016 / Vibration Based Condition Monitoring: A Review / Structural Health Monitoring: An International Journal 3(4):355~377
Nicolò Corrado / 2015 / Damage localisation in delaminated composite plates using a Gaussian process approach / Meccanica 50(10):2537~2546
Wei Fan / 2010 / Vibration-based Damage Identification Methods: A Review and Comparative Study / Structural Health Monitoring: An International Journal 10(1):83~111
Laleh Fatahi / 2016 / Multiple crack identification in frame structures using a hybrid Bayesian model class selection and swarm-based optimization methods / Structural Health Monitoring: An International Journal 17(1):39~58
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