Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1; Volume 7, Part 1American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 291
... periods were heavily influenced by the base width . A 25 % change in base width resulted in a 30 % change in first mode period and 23 % change in second mode period . The wider the base , the lower the periods . ยท Leg area Only the ...
... periods were heavily influenced by the base width . A 25 % change in base width resulted in a 30 % change in first mode period and 23 % change in second mode period . The wider the base , the lower the periods . ยท Leg area Only the ...
Page 292
... PERIOD ( SEC ) sway - type and bow - shaped mode inertia loads are illustrated separately to explain the shape of the applied inertial loads as a function of jacket height . From Fig . 6 ( a ) it is evident that the inertia loads ...
... PERIOD ( SEC ) sway - type and bow - shaped mode inertia loads are illustrated separately to explain the shape of the applied inertial loads as a function of jacket height . From Fig . 6 ( a ) it is evident that the inertia loads ...
Page 294
... periods affected dynamic base shears ( DBS ) relatively little for periods longer than 30 seconds : 40 % changes in period influenced dynamic base shear by between 5 % to 10 % . For shorter periods ( 25 to 30 sec ) effects of period ...
... periods affected dynamic base shears ( DBS ) relatively little for periods longer than 30 seconds : 40 % changes in period influenced dynamic base shear by between 5 % to 10 % . For shorter periods ( 25 to 30 sec ) effects of period ...
Contents
FLOATING PRODUCTION SYSTEMS | 1 |
OFFSHORE MECHANICS | 23 |
Early Production Systems in the North | 31 |
Copyright | |
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adsorber amplitude analysis angle Arctic Engineering axial bending buoyancy cable calculated coefficient compliant tower components Conference on Offshore curve damage diameter displacement drag coefficient drilling dynamic effect equation equipment fatigue finite element flexible floating production flow function horizontal hydrodynamic installation jacket kips length linear liquid limit load marine mass matrix maximum measured Mechanics and Arctic method mode mode shapes model tests modulus mooring line mooring system motion natural frequency nonlinear obtained Offshore Mechanics Offshore Technology Conference operation parameters performance pile pipe pipe materials pipeline platform pressure production riser random wave ratio response rope rotation RPIT shear shear modulus shear strength shown in Figure simulation soil static stiffness strength stress structure subsea surface syntactic foam tendon turbine uranium vane velocity vertical vessel water depth wave forces wave height wave power weight wellhead wire