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.
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초록· 키워드
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Vortex-induced vibration and instability vibration of tall buildings are very important fluid-structure interaction phenomenon, and many fundamental questions concerning the influence of body movement on the unsteady aerodynamic force remain unanswered. For tall buildings, there are two experimental methods to investigate the characteristics of unsteady aerodynamic forces, one is forced vibration method and the other is free vibration method. In the present paper, a free vibration method was used to investigate the unsteady aerodynamic force on tall building whose aspect ratio is 9 under boundary layer simulating city area. Wind pressures on surfaces and tip displacements were measured simultaneously, and the characteristics of tip displacements and generalized forces were discussed. It was found that variation of across-wind displacements showed different trend between the case when wind speed increases and wind speed decreases, and the fluctuating generalize forces in across-wind direction of vibrating model are larger than that of static model near the resonant wind speed and approach to the static value. And for higher wind speed range, there were two peaks in across-wind power spectra of generalize forces of vibrating model, which means that two frequency components are predominant in unsteady aerodynamic forces.
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등록된 정보가 없습니다.
참고문헌 (5)
참고문헌 신청
P.A. Bailey / 1985 / Interference excitation of twin tall buildings / Journal of the Wind Engineering and Industrial Aerodynamics 21:323~338
H, Kawai / 1992 / Vortex induced vibration of tall buildings / Journal of the Wind Engineering and Industrial Aerodynamics 41-44:117~128
김용철 / 2013 / 비정형 초고층 건물의 변동 풍압 / 한국공간구조학회지 13(1):97~104
Y. Taniike / 1983 / Study on aeroelastic instability of tall buildings
T. Taniguchi / 2001 / Study on unsteady aerodynamic force on structures
H, Kawai / 1992 / Vortex induced vibration of tall buildings / Journal of the Wind Engineering and Industrial Aerodynamics 41-44:117~128
김용철 / 2013 / 비정형 초고층 건물의 변동 풍압 / 한국공간구조학회지 13(1):97~104
Y. Taniike / 1983 / Study on aeroelastic instability of tall buildings
T. Taniguchi / 2001 / Study on unsteady aerodynamic force on structures
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