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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.77 No.3
- 발행연도
- 2021.1
- 수록면
- 355 - 368 (14page)
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초록· 키워드
오류제보하기
The time-varying mean (TVM) component of non-stationary wind speeds is commonly extracted utilizing empirical mode decomposition (EMD) in practice, whereas the accuracy of the extracted TVM is difficult to be quantified. To deal with this problem, this paper proposes an approach to identify and extract the optimal TVM from several TVM results obtained by the EMD. It is suggested that the optimal TVM of a 10-min time history of wind speeds should meet both the following conditions: (1) the probability density function (PDF) of fluctuating wind component agrees well with the modified Gaussian function (MGF). At this stage, a coefficient p is newly defined as an evaluation index to quantify the correlation between PDF and MGF. The smaller the p is, the better the derived TVM is; (2) the number of local maxima of obtained optimal TVM within a 10-min time interval is less than 6. The proposed approach is validated by a numerical example, and it is also adopted to extract the optimal TVM from the field measurement records of wind speeds collected during a sandstorm event.
목차
등록된 정보가 없습니다.
참고문헌 (27)
참고문헌 신청
AIJ-RLB / 2004 / Recommendations for loads on building-wind loads / Architectural Institute of Japan
ASCE/SE / 2010 / Minimum design loads for buildings and other structures / American Society of Civil Engineers
Chen, J / 2004 / On modelling of typhoon-induced non-stationary wind speed for tall buildings / Struct. Design Tall Special Buildings 13:145~163
Chen, J. / 2007 / A comparative study of stationary and non-stationary wind models using field measurements / Boundary-layer Meteorology 122:105~121
Jun Chen / 2012 / On Extraction of Time-varying Mean Wind Speed from Wind Record Based on Stationarity Index / Asia-Pacific Journal of Atmospheric Sciences 48(3):315~323
ASCE/SE / 2010 / Minimum design loads for buildings and other structures / American Society of Civil Engineers
Chen, J / 2004 / On modelling of typhoon-induced non-stationary wind speed for tall buildings / Struct. Design Tall Special Buildings 13:145~163
Chen, J. / 2007 / A comparative study of stationary and non-stationary wind models using field measurements / Boundary-layer Meteorology 122:105~121
Jun Chen / 2012 / On Extraction of Time-varying Mean Wind Speed from Wind Record Based on Stationarity Index / Asia-Pacific Journal of Atmospheric Sciences 48(3):315~323
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