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
- 발행연도
- 2011.12
- 수록면
- 601 - 608 (8page)
이용수
초록· 키워드
오류제보하기
This paper presents the damage assessment of a building structure by using a novel optical fiber accelerometer system. Especially, a sub-scaled building model is designed and manufactured to check up the feasibility of the optical fiber accelerometer for structural health monitoring. The novel accelerometer exploits the moire fringe optical phenomenon and two pairs of optical fibers to measure the displacement with a high accuracy, and furthermore a pendulum to convert the displacement into acceleration. A prototype of optical fiber accelerometer system has been successfully developed that consists of a sensor head, a control unit and a signal processing unit. The building model is also designed as a 4-story building with a rectangular shape of 200 × 300 mm of edges. Each floor is connected to the next ones by 6 steel columns which are threaded rods. Basically, a random vibration test of the building model is done with a shaker and all of acceleration data is successfully measured at the assigned points by the optical fiber accelerometer. The experiments are repeated in the undamaged state and the damaged state. The comparison of dynamic parameters including the natural frequencies and the eigenvectors is successfully carried out. Finally, the optical fiber accelerometer is proven to be prospective to evaluate dynamic characteristics of a building structure for the damage assessment.
목차
Abstract
1. Introduction
2. Optical Fiber Accelerometer System
3. Sub-Scaled Building Model
4. Dynamic Tests
5. Conclusions
References
참고문헌 (7)
참고문헌 신청
1. [학술지(정기간행물)] - J. R. Casas / 2003 / Fiber optic sensors for bridge monitoring / Journal of Bridge Engineering 8 (6) : 362 ~ 373
2. [학술지(정기간행물)] - C. Doyle / 2000 / Two-axis optical fiber accelerometer / Journal of Materials Science Letters 19 (11) : 959 ~ 961
3. [학술지(정기간행물)] - J. Kalenik / 1998 / A cantilever optical fiber accelerometer / Sensors and Actuators A : Physical 68 (1) : 350 ~ 355
4. [학술지(정기간행물)] - J.-M. Lopez-Hignera / 1997 / Simple low-frequency optical fiber accelerometer with large rotating machine monitoring applications / Journal of Lightwave Technology 15 (7) : 1120 ~ 1130
5. [학술지(정기간행물)] - F. Vallet / 1997 / A low-frequency optical accelerometer / Journal of Optics 29 : 152 ~ 155
2. [학술지(정기간행물)] - C. Doyle / 2000 / Two-axis optical fiber accelerometer / Journal of Materials Science Letters 19 (11) : 959 ~ 961
3. [학술지(정기간행물)] - J. Kalenik / 1998 / A cantilever optical fiber accelerometer / Sensors and Actuators A : Physical 68 (1) : 350 ~ 355
4. [학술지(정기간행물)] - J.-M. Lopez-Hignera / 1997 / Simple low-frequency optical fiber accelerometer with large rotating machine monitoring applications / Journal of Lightwave Technology 15 (7) : 1120 ~ 1130
5. [학술지(정기간행물)] - F. Vallet / 1997 / A low-frequency optical accelerometer / Journal of Optics 29 : 152 ~ 155
이 논문의 저자 정보
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2014-500-003272446