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.15 No.3
- 발행연도
- 2015.1
- 수록면
- 699 - 715 (17page)
이용수
초록· 키워드
오류제보하기
A modal parameter based damage sensitive feature (DSF) is defined to mimic the relativechange in any diagonal element of the stiffness matrix of a model of a structure. The damage assessment isperformed in a statistical pattern recognition framework using empirical complementary cumulativedistribution functions (ECCDFs) of the DSFs extracted from measured operational vibration response data.
Methods are discussed to perform probabilistic structural health assessment with respect to the followingquestions: (a) “Is there a change in the current state of the structure compared to the baseline state?”, (b)“Does the change indicate a localized stiffness reduction or increase?”, with the latter representing asituation of retrofitting operations, and (c) “What is the severity of the change in a probabilistic sense?”. Toidentify a range of normal structural variations due to environmental and operational conditions, lower andupper bound ECCDFs are used to define the baseline structural state. Such an approach attempts to decouple“non-damage” related variations from damage induced changes, and account for the unknownenvironmental/operational conditions of the current state. The damage assessment procedure is discussedusing numerical simulations of ambient vibration testing of a bridge deck system, as well as shake tableexperimental data from a 4-story steel frame.
목차
등록된 정보가 없습니다.
참고문헌 (22)
참고문헌 신청
Balsamo, L. / 2013 / Damage detection using flexibility proportional coordinate modal assurance criterion / Proceedings of the 31stIMAC
Balsamo, L. / 2013 / Modal parameter based damage detection in operational modal analysis: A statistical pattern recognition approach / Proceedings of the 11th International Conference on Structural Safety and Reliability, New York, USA
Balsamo, L. / 2014 / A structural health monitoring strategy using cepstral features / J. Sound Vib 333(19):4526~4542
Duan, Z. / 2007 / Damage detection in ambient vibration using proportional flexibility matrix with incomplete measured DOFs / Struct. Control. Health Monit 14(2):186~196
Farrar, C. R. / 2001 / Vibration-based structural damage identification / Philos. T. R. Soc. A 359(1778):131~149
Balsamo, L. / 2013 / Modal parameter based damage detection in operational modal analysis: A statistical pattern recognition approach / Proceedings of the 11th International Conference on Structural Safety and Reliability, New York, USA
Balsamo, L. / 2014 / A structural health monitoring strategy using cepstral features / J. Sound Vib 333(19):4526~4542
Duan, Z. / 2007 / Damage detection in ambient vibration using proportional flexibility matrix with incomplete measured DOFs / Struct. Control. Health Monit 14(2):186~196
Farrar, C. R. / 2001 / Vibration-based structural damage identification / Philos. T. R. Soc. A 359(1778):131~149
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