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 53
... mean tension from the test . Firstly , the total maximum offset is so high ( model test results give approx . 43.5 m ) that the model line system is significantly stiffer than the full scale line system ( see figure 3 ) . Therefore the ...
... mean tension from the test . Firstly , the total maximum offset is so high ( model test results give approx . 43.5 m ) that the model line system is significantly stiffer than the full scale line system ( see figure 3 ) . Therefore the ...
Page 263
... Mean 388 2.7 421 4.3 P - Delta , Xe = -60 S.D. 1,481 792 903 8.5 Max . 3,191 1,917 2,043 16.2 3.4 0.78 2 Regular Wave + 4.5 72 13 700 Mean 1,583 -7.7 2,399 40 Wind Current , S.D. 2,083 1,822 3,787 6 P - Delta , Xe = -60 Max . 5,793 ...
... Mean 388 2.7 421 4.3 P - Delta , Xe = -60 S.D. 1,481 792 903 8.5 Max . 3,191 1,917 2,043 16.2 3.4 0.78 2 Regular Wave + 4.5 72 13 700 Mean 1,583 -7.7 2,399 40 Wind Current , S.D. 2,083 1,822 3,787 6 P - Delta , Xe = -60 Max . 5,793 ...
Page 273
... mean upcrossing rate of mean stress level : probability density of stress amplitude ( 17 ) ( 18 ) The fatigue damage for the time period considered can then be found from a Miner summation over all sea states as : N sea D = [ D1p ( i ) ...
... mean upcrossing rate of mean stress level : probability density of stress amplitude ( 17 ) ( 18 ) The fatigue damage for the time period considered can then be found from a Miner summation over all sea states as : N sea D = [ D1p ( i ) ...
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