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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.23 No.6
- 발행연도
- 2019.1
- 수록면
- 537 - 551 (15page)
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초록· 키워드
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In this paper, a method for analyzing the damping performance of stay cables incorporating magnetorheological (MR) dampers in the passive control mode is developed taking into account the cable sag and inclination, the damper coefficient, stiffness and mass, and the stiffness of damper support. Both numerical and asymptotic solutions are obtained from complex modal analysis. With the asymptotic solution, analytical formulas that evaluate the equivalent damping ratio of the sagged cable-damper system in consideration of all the above parameters are derived. The main thrust of the present study is to develop an general design formula and a universal curve for the optimal design of MR dampers for adjustable passive control of sagged cables. Two sag-affecting coefficients are derived to reflect the effects of cable sag on the maximum attainable damping ratio and the optimal damper coefficient. For the cable configurations commonly used in cable-stayed bridges, the sag-affecting coefficients are directly expressed in terms of the sag-extensibility parameter to facilitate the control design. A case study on adjustable passive vibration control of the longest cable (536 m) on Stonecutters Bridge is carried out to demonstrate the influence of the sag for the damper design, and to figure out the necessity of adjustability of damper coefficients for achieving maximum damping ratio for different vibration modes.
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참고문헌 (52)
참고문헌 신청
Haijun Zhou / 2018 / Free vibration of a taut cable with a damper and a concentrated mass / Structural Control and Health Monitoring 25(11):e2251
Zhou, H. J. / 2013 / Damping of stay cable with passive-on magnetorheological dampers : a full-scale test / Int. J. Civil Eng 11(3):154~159
Haijun Zhou / 2014 / Free vibration of taut cable with a damper and a spring / Structural Control and Health Monitoring 21(6):996~1014
Haijun Zhou / 2016 / Damping of Full-Scale Stay Cable with Viscous Damper: Experiment and Analysis / Advances in Structural Engineering 17(2):265~274
Zhou, H. J. / 2018 / Full-scale test of dampers for stay cable vibration mitigation and improvement measures / Struct. Monit. Maint 5(4):489~506
Zhou, H. J. / 2013 / Damping of stay cable with passive-on magnetorheological dampers : a full-scale test / Int. J. Civil Eng 11(3):154~159
Haijun Zhou / 2014 / Free vibration of taut cable with a damper and a spring / Structural Control and Health Monitoring 21(6):996~1014
Haijun Zhou / 2016 / Damping of Full-Scale Stay Cable with Viscous Damper: Experiment and Analysis / Advances in Structural Engineering 17(2):265~274
Zhou, H. J. / 2018 / Full-scale test of dampers for stay cable vibration mitigation and improvement measures / Struct. Monit. Maint 5(4):489~506
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