Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 14American Society of Mechanical Engineers, 1995 - Arctic regions |
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Page 57
... windspeed to the criti- cal 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 ...
... windspeed to the criti- cal 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 ...
Page 58
... WINDSPEED IN A CRITICAL VELOCITY IN- TERVAL [ a , b ] The duration of a visit by the wind speed to an in- terval [ a ... windspeed at level a or a downcrossing of windspeed at level b , and ends with either an upcrossing at bor a ...
... WINDSPEED IN A CRITICAL VELOCITY IN- TERVAL [ a , b ] The duration of a visit by the wind speed to an in- terval [ a ... windspeed at level a or a downcrossing of windspeed at level b , and ends with either an upcrossing at bor a ...
Page 60
... windspeed records taken at 5 different elevations . Each raw windspeed record is 40 minutes long with a sampling frequency of 0.85 Hertz . The 40 - minute mean windspeed varied between 13 [ m.s ̄1 ] and 31 [ m.s ̄1 ] , and the ...
... windspeed records taken at 5 different elevations . Each raw windspeed record is 40 minutes long with a sampling frequency of 0.85 Hertz . The 40 - minute mean windspeed varied between 13 [ m.s ̄1 ] and 31 [ m.s ̄1 ] , and the ...
Contents
DESIGN OF OFFSHORE STRUCTURES | 1 |
Aarsnes | 11 |
A Novel Design Procedure for Jacket Installations | 19 |
Copyright | |
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acceptance criteria added mass ALARP amplitude analysis angle Axial load barge behaviour bending buckling buoy calculated Campos Basin catastrophe sets coefficients collision compliant tower components computed configuration crack crane crane vessel cycles cyclic cylinder damping damping ratio Designer Wave diameter displacement drilling dynamic effects element equation fatigue flexjoint function global heave horizontal hydrodynamic installation ISSC TLP jacket joint lift lift forces linear load kN maximum measured mesh mode model test mooring line motion natural frequency nonlinear obtained Ocean Ocean Ranger Offshore Technology operation oscillation panel parameters platform predicted Quickwave ratio response riser risk shear simulation specimen SSCV Statoil steel stiffness strain stress surge tanker tension tension leg platform transverse tube tubular USFOS values velocity vertical vessel vibration vortex induced vibrations vortex shedding water depth wave forces wave height wave period weight weld toe wellhead wind windspeed