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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.20 No.5
- 발행연도
- 2017.1
- 수록면
- 525 - 537 (13page)
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초록· 키워드
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This paper explores different vibration control strategies for the cancellation of human-induced vibration on a structure with time-varying modal parameters. The main motivation of this study is a lively urban stress-ribbon footbridge (Pedro Gómez Bosque, Valladolid, Spain) that, after a whole-year monitoring, several natural frequencies within the band of interest (normal paring frequency range) have been tracked. The most perceptible vibration mode of the structure at approximately 1.8 Hz changes up to 20%. In order to find a solution for this real case, this paper takes the annual modal parameter estimates (approx. 14000 estimations) of this mode and designs three control strategies: a) a tuned mass damper (TMD) tuned to the most-repeated modal properties of the aforementioned mode, b) two semi-active TMD strategies, one with an on-off control law for the TMD damping, and other with frequency and damping tuned by updating the damper force. All strategies have been carefully compared considering two structure models: a) only the aforementioned mode and b) all the other tracked modes. The results have been compared considering human-induced vibrations and have helped the authors on making a decision of the most advisable strategy to be practically implemented.
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참고문헌 (27)
참고문헌 신청
Mohsen Askari / 2016 / Semi-active control of smart building-MR damper systems using novel TSK-Inv and max-min algorithms / Smart Structures and Systems, An International Journal 18(5):1005~1028
Daniele Bortoluzzi / 2015 / Design of a TMD solution to mitigate wind-induced local vibrations in an existing timber footbridge / Smart Structures and Systems, An International Journal 16(3):459~478
Brownjohn, J. M. W. / 2004 / A spectral density approach for modeling continuous vertical forces on pedestrian structures due to walking / Can. J. Civil Eng
Elsa Caetano / 2010 / Studies for controlling human-induced vibration of the Pedro e Inês footbridge, Portugal. Part 2: Implementation of tuned mass dampers / Engineering Structures 32(4):1082~1091
Casado, C. M. / 2013 / Implementation of passive and active vibration control on an in-service footbridge / Struct. Control Health Monit. 20:70~87
Daniele Bortoluzzi / 2015 / Design of a TMD solution to mitigate wind-induced local vibrations in an existing timber footbridge / Smart Structures and Systems, An International Journal 16(3):459~478
Brownjohn, J. M. W. / 2004 / A spectral density approach for modeling continuous vertical forces on pedestrian structures due to walking / Can. J. Civil Eng
Elsa Caetano / 2010 / Studies for controlling human-induced vibration of the Pedro e Inês footbridge, Portugal. Part 2: Implementation of tuned mass dampers / Engineering Structures 32(4):1082~1091
Casado, C. M. / 2013 / Implementation of passive and active vibration control on an in-service footbridge / Struct. Control Health Monit. 20:70~87
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