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 133
... drag loads are fairly well established . Recently , the treatment of drag forces has been extended to include frame - invariant biplanar linearization . In this paper , a new method is proposed for the expansion of nonlinear drag forces ...
... drag loads are fairly well established . Recently , the treatment of drag forces has been extended to include frame - invariant biplanar linearization . In this paper , a new method is proposed for the expansion of nonlinear drag forces ...
Page 136
... drag force on a cylindrical element has the same general form as Eq . ( 6 ) which describes the drag force on rectangular elements . However , the off - diagonal entries in the coefficient matrices given in Eqs . ( 31 ) and ( 32 ) ...
... drag force on a cylindrical element has the same general form as Eq . ( 6 ) which describes the drag force on rectangular elements . However , the off - diagonal entries in the coefficient matrices given in Eqs . ( 31 ) and ( 32 ) ...
Page 139
The mean drag force in the splash zone is F de = Nc n = 1 [ 0 ] Tn Clo ) ( Cvnn ) , nn ( 59 ) where Ne is the number of columns piercing out of water , Cηn is the zeroth - order coefficient vector for the local drag force acting on the ...
The mean drag force in the splash zone is F de = Nc n = 1 [ 0 ] Tn Clo ) ( Cvnn ) , nn ( 59 ) where Ne is the number of columns piercing out of water , Cηn is the zeroth - order coefficient vector for the local drag force acting on the ...
Contents
Investigation of the Ergodicity Assumption for Sea States in the Reliability Assessment of Offshore | 1 |
OFFSHORE TECHNOLOGY PART | 19 |
Fatigue Loading | 33 |
Copyright | |
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analysis applied approach approximately assessment assumed average basic calculated coefficient component computed considered constant corresponding cost crack growth curve cycles damage defect density depends depth derived described determined developed deviation distribution drag effects Engineering equation equivalent estimated evaluated example expected extreme factor failure failure probability fatigue Figure force fracture frequency function geometry given important included increase indicated initial inspection integration joints limit linear load Lognormal material maximum mean measured mechanics method normal obtained offshore structures operation parameters performed period platform predicted present pressure probabilistic probability procedure random variable range ratio reference relative reliability represent requirements respectively response risk safety shown shows significant simulation standard statistical storm strength stress structure surface Table tension tether tubular uncertainty variables variation wave wave height weld