Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1; Volume 8, Part 1American Society of Mechanical Engineers, 1989 - Arctic regions |
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Page 171
... spectrum y2 ( m ) at 0.07 Hz and at ~ 0.53 Hz are close to one and zero , respectively . The coupled coherence spectrum y2 , ( m ) at these frequencies is approximately zero . Thus , we conclude that the surge motion of the TLP is ...
... spectrum y2 ( m ) at 0.07 Hz and at ~ 0.53 Hz are close to one and zero , respectively . The coupled coherence spectrum y2 , ( m ) at these frequencies is approximately zero . Thus , we conclude that the surge motion of the TLP is ...
Page 173
... spectrum . ( a ) Linear part of surge power spectrum PL ( solid line ) , quadratic part of surge spectrum PQ ( fine dotted line ) , and interference part ( absolute value ) of surge power spectrum PLQ ( coarse dotted line ) . ( b ) ...
... spectrum . ( a ) Linear part of surge power spectrum PL ( solid line ) , quadratic part of surge spectrum PQ ( fine dotted line ) , and interference part ( absolute value ) of surge power spectrum PLQ ( coarse dotted line ) . ( b ) ...
Page 570
MODAL RESPONSE SPECTRUM WAVE SPECTRUM ( M2.SEC ) 120 180 MODAL RESPONSE SPECTRUM 2.5 2.5 2.5 RMS displacement ( m ) RMS displacement ( m ). 5 4 3 2 6 Z ху 7 X 60m 30m 10m 110m pile - soil foundation Fig.1 Analytical model of structure ...
MODAL RESPONSE SPECTRUM WAVE SPECTRUM ( M2.SEC ) 120 180 MODAL RESPONSE SPECTRUM 2.5 2.5 2.5 RMS displacement ( m ) RMS displacement ( m ). 5 4 3 2 6 Z ху 7 X 60m 30m 10m 110m pile - soil foundation Fig.1 Analytical model of structure ...
Contents
OFFSHORE OUTLOOK1989 | 1 |
Trends in U S Offshore Oil and Gas Development | 11 |
OFFSHORE TECHNOLOGY NONDESTRUCTIVE TESTING | 19 |
Copyright | |
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amplitude analysis Arctic Engineering calculated coefficient columns Compliant Towers components concept Condeep condenser Conference on Offshore configuration corrosion cost crack crane vessel cutting damping deck decommissioning detection diameter displacement drift force drilling dynamic effects environmental equations equipment evaluation fatigue Figure FPSO frequency ft/sec Gulf of Mexico industry inspection installation jacket kurtosis linear load Magfoil magnetic flux leakage marine growth maximum measured Mechanics and Arctic method mooring system nodes nonlinear North Sea Offshore Mechanics oil and gas operation OTEC parameters period pile pipe pipeline pontoons pressure production reliability response riser roller RPIT Seamill SNCM spectrum steel stress structured packings subsea surface surge motion techniques Tension Leg Platform tether thickness topside transfer functions turbine ultrasonic underwater values velocity vertical vessel water depth wave probe weight weld Wellhead X-VALUES