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 59
... reduced velocities that will allow the vortex shedding frequency from the member to lockin or synchronize with the natural frequency of the member . The reduced velocity is determined as V , = where V is the windspeed . fn is the member ...
... reduced velocities that will allow the vortex shedding frequency from the member to lockin or synchronize with the natural frequency of the member . The reduced velocity is determined as V , = where V is the windspeed . fn is the member ...
Page 378
... REDUCED FLOW VELOCITY , U -2.0 5 6 2 8-2 -4 -6 10 8 3 -d 3.60 mm -d = 3.00 mm 2 --d = 2.40 mm- d = 1.80 mm d = 1.20 mm 7 REDUCED FLOW VELOCITY , U -1 -o - Ug = 0.07 m / s Ug = 0.11 m / s Ug = 0.15 m / s 20 30 40 50 60 REDUCED FLOW ...
... REDUCED FLOW VELOCITY , U -2.0 5 6 2 8-2 -4 -6 10 8 3 -d 3.60 mm -d = 3.00 mm 2 --d = 2.40 mm- d = 1.80 mm d = 1.20 mm 7 REDUCED FLOW VELOCITY , U -1 -o - Ug = 0.07 m / s Ug = 0.11 m / s Ug = 0.15 m / s 20 30 40 50 60 REDUCED FLOW ...
Page 381
... REDUCED FLOW VELOCITY , U -8 10 12 2 3 4 od 2.30 mm od d = 2.05 mm 1.80 mm d = 1.55 mm d = 1.30 mm 5 6 6 REDUCED FLOW VELOCITY , U FIG . 9. FLUID - DAMPING COEFFICIENT α ' AND FLUID- STIFFNESS COEFFICIENT α " vs. REDUCED FLOW VELOCITY ...
... REDUCED FLOW VELOCITY , U -8 10 12 2 3 4 od 2.30 mm od d = 2.05 mm 1.80 mm d = 1.55 mm d = 1.30 mm 5 6 6 REDUCED FLOW VELOCITY , U FIG . 9. FLUID - DAMPING COEFFICIENT α ' AND FLUID- STIFFNESS COEFFICIENT α " vs. REDUCED FLOW VELOCITY ...
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