A Gaussian model for predicting the effect of unsteady windspeed on the vortex-induced vibration response of structural members

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:194688

Fei, C Y; Vandiver, J K ^[1]

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1. Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Ocean Engineering

In a previous study the authors have shown that the expected duration of visit by the windspeed to the critical velocity interval of a structural member is an important time scale in determining the ultimate fatigue damage of the member due to vortex-induced vibration in naturally time varying winds. In this paper, a Gaussian windspeed assumption is introduced in which the expected duration of visit can be expressed explicitly in terms of simple wind statistics. This assumption is verified with high sampling rate maritime wind data. The wind statistics necessary for calculation of the expected duration of visit are extracted from the raw wind data.

• OSTI ID: 194688
• Report Number(s): CONF-950695-; ISBN 0-7918-1307-X; TRN: IM9611%%190
• Resource Relation: Conference: International conference on offshore mechanics and arctic engineering, Copenhagen (Denmark), 18-22 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of OMAE 1995 -- Proceedings of the 14. international conference on offshore mechanics and arctic engineering. Volume 1, Part B: Offshore technology; Chakrabarti, S.K. [ed.] [Chicago Bridge and Iron Technical Services, Plainfield, IL (United States)]; Gudmestad, O.T. [ed.] [Statoil, Stavanger (Norway)]; Sparks, C. [ed.] [Inst. Francais du Petrole, Rueil-Malmaison (France)]; Morrison, D.G. [ed.] [Shell E and P Technology Co., Houston, TX (United States)]; PB: 539 p.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
OFFSHORE PLATFORMS
SUPPORTS
MECHANICAL VIBRATIONS
MATHEMATICAL MODELS
FREQUENCY ANALYSIS
WIND LOADS
RESPONSE FUNCTIONS
DYNAMIC LOADS
CALCULATION METHODS