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 204
... SURGE 0.10 0.15 0.20 Frequency [ Hz ] 0.25 0.30 FIG . MOTION FOR DISPLACED POSITION CALCULATION Pitch [ * 103 rad ] ... surge response spectrum shows a large peak in the low frequency region where the surge natural frequency lies . It also ...
... SURGE 0.10 0.15 0.20 Frequency [ Hz ] 0.25 0.30 FIG . MOTION FOR DISPLACED POSITION CALCULATION Pitch [ * 103 rad ] ... surge response spectrum shows a large peak in the low frequency region where the surge natural frequency lies . It also ...
Page 205
... Surge TLP 5 Model ( b ) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 Frequency [ Hz ] ( a ) Surge [ ft ] Spec . [ * 103 ft2 / Hz ] 120 80 40 200 W 400 Time [ sec ] & 40 15 5 600 Surge TLP Model 0.00 0.05 0.10 0.15 0.20 0.25 0.30 Frequency [ Hz ] ...
... Surge TLP 5 Model ( b ) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 Frequency [ Hz ] ( a ) Surge [ ft ] Spec . [ * 103 ft2 / Hz ] 120 80 40 200 W 400 Time [ sec ] & 40 15 5 600 Surge TLP Model 0.00 0.05 0.10 0.15 0.20 0.25 0.30 Frequency [ Hz ] ...
Page 228
... surge response increases ( with more in the wave propagation direction ) . For the higher frequency wave ( Figure 7a ) , there are offsets of the surge response , and the amplitudes of the surge oscillation are proportional to the wave ...
... surge response increases ( with more in the wave propagation direction ) . For the higher frequency wave ( Figure 7a ) , there are offsets of the surge response , and the amplitudes of the surge oscillation are proportional to the wave ...
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