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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.22 No.3
- 발행연도
- 2018.1
- 수록면
- 277 - 290 (14page)
이용수
초록· 키워드
오류제보하기
In this paper, wavelet finite element model (WFEM) updating technique is employed to detect sub-element damage in thin plate structures progressively. The procedure of WFEM-based detection method, which can detect sub-element damage gradually, is established. This method involves the optimization of an objective function that combines frequencies and modal assurance criteria (MAC). During the damage detection process, the scales of wavelet elements in the concerned regions are adaptively enhanced or reduced to remain compatible with the gradually identified damage scenarios, while the modal properties from the tests remains the same, i.e., no measurement point replacement or addition are needed. Numerical and experimental examples were conducted to examine the effectiveness of the proposed method. A scanning Doppler laser vibrometer system was employed to measure the plate mode shapes in the experimental study. The results indicate that the proposed method can detect structural damage with satisfactory accuracy by using minimal degrees-of-freedoms (DOFs) in the model and minimal updating parameters in optimization.
목차
등록된 정보가 없습니다.
참고문헌 (34)
참고문헌 신청
Amaratunga, K. / 2006 / Multi-resolution modeling with operator-customized wavelets derived from finite elements / Comput. Method. Appl. M. 195:2509~2532
Antonio, J.G.P. / 2014 / Structural model updating using dynamic data / J. Civil. Struct. Health Monit. 4(3):177~194
Au, S.K. / 2013 / Bayesian operational modal analysis: theory, computation, practice / Comput. Struct. 126:3~14
Bayissa, W.L. / 2007 / Damage identification in plate-like structures using bending moment response power spectral density / Struct. Health Monit. 6:5~24
Becker, R. / 2000 / Multigrid techniques for finite elements on locally refined meshes / Numer. Linear. Algebr. 7:363~379
Antonio, J.G.P. / 2014 / Structural model updating using dynamic data / J. Civil. Struct. Health Monit. 4(3):177~194
Au, S.K. / 2013 / Bayesian operational modal analysis: theory, computation, practice / Comput. Struct. 126:3~14
Bayissa, W.L. / 2007 / Damage identification in plate-like structures using bending moment response power spectral density / Struct. Health Monit. 6:5~24
Becker, R. / 2000 / Multigrid techniques for finite elements on locally refined meshes / Numer. Linear. Algebr. 7:363~379
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