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
- 2011.2
- 수록면
- 47 - 54 (8page)
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초록· 키워드
오류제보하기
A damage detection method using natural frequency and strain mode shape calculated from dynamic strain date obtained by distributed fiber optic sensor is presented. An analytical model for cracked beam is used to calculate the natural frequency and strain mode shape for damaged beam, and damage location and severity are estimated based on neural network technique using the measured natural frequency and strain mode shape. An experimental study was carried out on a cracked cantilever beam to verify the present method for damage identification. The cracks were inflicted on the beam and free vibration tests were performed for the dynamic strain data from the distributed fiber optic sensor. The damage estimation was carried out and it has been found that the identified damage locations and severities agree reasonably well with the inflicted damages on the structure.
목차
Abstract
1. 서론
2. 분포형 광섬유센서
3. 에너지법을 이용한 균열 보의 변형률 모드
4. 손상실험
5. 손상추정
6. 결론
감사의 글
참고문헌
참고문헌 (22)
참고문헌 신청
Xuan, F.Z. / 2009 / In Situ Monitoring on Prestress Losses in the Reinforced Structure with Fiber-optic Sensors / Measurement 42:107~111
Mehrani, E. / 2009 / Evaluation of Fiber Optic Sensors for Remote Health Monitoring of Bridge Structures / Materials and Structures 42:183~199
Ren, L. / 2009 / Design and Application of a Fiber Bragg Grating Strain Sensor with Enhanced Sensitivity in the Small-scale Dam Model / Smart Materials and Structures 18:1~7
Bastianini, F. / 2005 / Retrofit and Monitoring of an Historical Building Using ‘‘Smart’’ CFRP with Embedded Fibre Optic Brillouin Sensors / Construction and Building Materials 19:525~535
Ohno, H. / 2001 / Industrial Applications of the BOTDR Optical Fiber Strain Sensor / Optical Fiber Technology 7:45~64
Mehrani, E. / 2009 / Evaluation of Fiber Optic Sensors for Remote Health Monitoring of Bridge Structures / Materials and Structures 42:183~199
Ren, L. / 2009 / Design and Application of a Fiber Bragg Grating Strain Sensor with Enhanced Sensitivity in the Small-scale Dam Model / Smart Materials and Structures 18:1~7
Bastianini, F. / 2005 / Retrofit and Monitoring of an Historical Building Using ‘‘Smart’’ CFRP with Embedded Fibre Optic Brillouin Sensors / Construction and Building Materials 19:525~535
Ohno, H. / 2001 / Industrial Applications of the BOTDR Optical Fiber Strain Sensor / Optical Fiber Technology 7:45~64
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UCI(KEPA) : I410-ECN-0101-2012-540-004354029