Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 2American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 107
... forces , in particular quadratic wave forces . These forces are also called drift forces and are due to both potential and viscous effects . In general , both effects contribute significantly to the total drift force . Further , the viscous ...
... forces , in particular quadratic wave forces . These forces are also called drift forces and are due to both potential and viscous effects . In general , both effects contribute significantly to the total drift force . Further , the viscous ...
Page 108
... forces f , ( t ) and f ( x , t ) are respectively the vectors for the total linear potential force and total nonlinear viscous force acting on the hull . Note that the hydrodynamic forces are computed from the undisplaced position of ...
... forces f , ( t ) and f ( x , t ) are respectively the vectors for the total linear potential force and total nonlinear viscous force acting on the hull . Note that the hydrodynamic forces are computed from the undisplaced position of ...
Page 139
... force is the transfor- mation of the local first - order exciting drag force acting on the TLP portion below the mean water level F !! ( t ) = F ( 1 ) = Σ T , C1 ( C ̧ ̧ ) u2 ( t ) , n = 1 n ( 61 ) where C is the first - order ...
... force is the transfor- mation of the local first - order exciting drag force acting on the TLP portion below the mean water level F !! ( t ) = F ( 1 ) = Σ T , C1 ( C ̧ ̧ ) u2 ( t ) , n = 1 n ( 61 ) where C is the first - order ...
Contents
Investigation of the Ergodicity Assumption for Sea States in the Reliability Assessment of Offshore | 1 |
OFFSHORE TECHNOLOGY PART | 33 |
Extreme Forces on Large AxiSymmetric Offshore Structures in Directional Seas | 49 |
Copyright | |
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amplitude applied assessment assumed axial basic variables behaviour calculated coefficient component computed considered corrosion cost crack depth crack growth rate CTOD curve defect deterministic drag force effects Engineering environmental equation estimated evaluated extreme failure mode failure probability fatigue crack growth fatigue damage fatigue failure fatigue reliability fatigue strength Figure fracture mechanics fracture toughness frequency Gaussian geometry hindcast initial inspection instability load integration limit state function linear Lognormal LRFD material maxima maximum mean value method nonlinear normal normal distribution North Sea obtained offshore structures parameters platform predicted pressure probabilistic probability density function probability distribution quadratic random variable ratio reliability analysis reliability index residual stresses response risk S-N curve safety sea-state significant wave height simulation spectral standard deviation statistical stochastic storm stress intensity factor stress range Table tension tether tubular joints variation vector weld weldments