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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.75 No.4
- 발행연도
- 2020.1
- 수록면
- 465 - 475 (11page)
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초록· 키워드
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The analytical approach for stability and response of iced conductor under uniform wind or turbulent wind is presented in this study. A nonlinear dynamic model is established to describe the motion of iced conductor galloping. In the case of uniform wind, the stability condition is derived by analyzing the eigenvalue associated with linearized matrix; The first order and second order approximation of galloping amplitude are obtained using multi-scale method. However, real wind has random characteristics essentially. To accurately evaluate the performance of the galloping iced conductor, turbulence wind should be described by random processes. In the case of turbulence wind, the Lyapunov exponent is conducted to judge the stability condition; The probability density of displacement is obtained by using the path integral method to predict galloping amplitude. An example is proposed to verify the effectiveness of the previous methods. It is shown that the fluctuating component of wind has little influence on the stability of iced conductor, but it can increase galloping amplitude. The analytical results on stability and response are also verified by numerical time stepping method.
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참고문헌 (23)
참고문헌 신청
Cai, G.Q. / 2017 / Elements of Stochastic Dynamics / World Scientific Co. Pte. Ltd
Chadha, J. / 1975 / Influence of turbulence on the galloping instability of iced conductors / IEEE Trans. Power App. Syst 94(5):1489~1499
E.Y. Choi / 2015 / Numerical and experimental study on dynamic response of moored spar-type scale platform for floating offshore wind turbine / Structural Engineering and Mechanics, An Int＇l Journal 54(5):909~922
Den Hartog, J. P. / 1932 / Transmission line vibration due to sleet / AIEE Tran. 51(4):1074~1086
Desai, Y. M. / 1995 / Finite element modeling of transmission line galloping / Comput. Struct 57(3):407~420
Chadha, J. / 1975 / Influence of turbulence on the galloping instability of iced conductors / IEEE Trans. Power App. Syst 94(5):1489~1499
E.Y. Choi / 2015 / Numerical and experimental study on dynamic response of moored spar-type scale platform for floating offshore wind turbine / Structural Engineering and Mechanics, An Int＇l Journal 54(5):909~922
Den Hartog, J. P. / 1932 / Transmission line vibration due to sleet / AIEE Tran. 51(4):1074~1086
Desai, Y. M. / 1995 / Finite element modeling of transmission line galloping / Comput. Struct 57(3):407~420
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