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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.15 No.1
- 발행연도
- 2015.1
- 수록면
- 169 - 189 (21page)
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초록· 키워드
오류제보하기
Convergence difficulty and available complete measurement information have been considered as two primary challenges for the identification of large-scale engineering structures. In this paper, a time domain substructural identification approach by combining a weighted adaptive iteration (WAI) algorithm and an extended Kalman filter method with a weighted global iteration (EFK-WGI) algorithm was proposed for simultaneous identification of physical parameters of concerned substructures and unknown external excitations applied on it with limited response measurements. In the proposed approach, according to the location of the unknown dynamic loadings and the partially available structural response measurements, part of structural parameters of the concerned substructure and the unknown loadings were first identified with the WAI approach. The remaining physical parameters of the concerned substructure were then determined by EFK-WGI basing on the previously identified loadings and substructural parameters. The efficiency and accuracy of the proposed approach was demonstrated via a 20-story shear building structure and 23 degrees of freedom (DOFs) planar truss model with unknown external excitation and limited observations. Results show that the proposed approach is capable of satisfactorily identifying both the substructural parameters and unknown loading within limited iterations when both the excitation and dynamic response are partially unknown.
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참고문헌 (24)
참고문헌 신청
Carden, E.P. / 2004 / Vibration based condition monitoring : a review / Struct. Health Monit 3(4):355~377
Chang, P. C. / 2003 / Review paper : health monitoring of civil infrastructure / Struct. Health Monit 2(3):257~267
Fan, W. / 2011 / Vibration-based damage identification methods : A review and comparative study / Struct. Health Monit 10(1):83~111
Koh, C. G. / 1991 / Estimation of structural parameters in time domain : a substructure approach / Earthq. Eng. Struct. D 20(8):787~801
Koh, C. G. / 2003 / Substructural and progressive structural identification methods / Eng. Struct 25(12):1551~1563
Chang, P. C. / 2003 / Review paper : health monitoring of civil infrastructure / Struct. Health Monit 2(3):257~267
Fan, W. / 2011 / Vibration-based damage identification methods : A review and comparative study / Struct. Health Monit 10(1):83~111
Koh, C. G. / 1991 / Estimation of structural parameters in time domain : a substructure approach / Earthq. Eng. Struct. D 20(8):787~801
Koh, C. G. / 2003 / Substructural and progressive structural identification methods / Eng. Struct 25(12):1551~1563
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