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 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.65 No.1
- 발행연도
- 2018.1
- 수록면
- 43 - 51 (9page)
이용수
초록· 키워드
오류제보하기
Structural modal parameters i.e. natural frequencies, damping ratios and mode shapes are dynamic features obtained either by measuring the vibration responses of a structure or by means of finite elements models. Over the past two decades, modal parameters have been used to detect damage in structures by observing its variations over time. However, such variations can also be caused by environmental factors such as humidity, wind and, more importantly, temperature. In so doing, the use of modal parameters as damage indicators can be seriously compromised if these effects are not properly tackled. Many researchers around the world have found numerous methods to mitigate the influence of such environmental factors from modal parameters and many advanced damage indicators have been developed and proposed to improve the reliability of structural health monitoring. In this paper, several vibration tests are performed on a simply supported steel beam subjected to different damage scenarios and temperature conditions, aiming to describe the variation in modal parameters due to temperature changes. Moreover, four statistical methodologies are proposed to identify damage. Results show a slightly linear decrease in the modal parameters due to temperature increase, although it is not possible to establish an empirical equation to describe this tendency.
목차
등록된 정보가 없습니다.
참고문헌 (31)
참고문헌 신청
Alampalli, S. / 1998 / Influence of in-service environment on modal parameters / Proceedings IMAC XVI-International Modal Analysis Conference :111~116
Allemang, R.J. / 2002 / The Modal Assurance Criterion (MAC): Twenty years of use and abuse / Proceedings IMAC XX- International Modal Analysis Conference
Alves, V. / 2016 / On the use of symbolic vibration data for robust structural health monitoring / Proc. Inst. Civil Eng. Struct. Build. 169(9):715~723
Alves, V. / 2015 / Novelty detection for SHM using raw acceleration measurements / Struct. Control Hlth. Monit. 22(9):1193~1207
Cardoso, R. / 2017 / A robust methodology for modal parameters estimation applied to SHM / Mech. Syst. Signal Pr. 95:24~41
Allemang, R.J. / 2002 / The Modal Assurance Criterion (MAC): Twenty years of use and abuse / Proceedings IMAC XX- International Modal Analysis Conference
Alves, V. / 2016 / On the use of symbolic vibration data for robust structural health monitoring / Proc. Inst. Civil Eng. Struct. Build. 169(9):715~723
Alves, V. / 2015 / Novelty detection for SHM using raw acceleration measurements / Struct. Control Hlth. Monit. 22(9):1193~1207
Cardoso, R. / 2017 / A robust methodology for modal parameters estimation applied to SHM / Mech. Syst. Signal Pr. 95:24~41
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