Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2American Society of Mechanical Engineers, 1989 - Arctic regions |
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Page 282
... present data . The following observations concerning the harmonic components of lift coefficient and the Keulegan Carpenter number have been reported in studies on lift forces acting on a cylinder in waves or in harmonic flows ( 5 , 10 ...
... present data . The following observations concerning the harmonic components of lift coefficient and the Keulegan Carpenter number have been reported in studies on lift forces acting on a cylinder in waves or in harmonic flows ( 5 , 10 ...
Page 316
... Present Quasi 3 - D method . VORTEX INDUCED RESPONSE OF RISERS . Results from the present method is compared to model tests performed in a specially built testing facility at University College of London ( Lyons and Patel 1987 ) . In ...
... Present Quasi 3 - D method . VORTEX INDUCED RESPONSE OF RISERS . Results from the present method is compared to model tests performed in a specially built testing facility at University College of London ( Lyons and Patel 1987 ) . In ...
Page 366
... present stage is Aj , the mean strain increment of component r¡ becomes : Σ ( A ) ; = 2 ; 4 € p ( Δε 1 = 1 Δε Hence , the total strain up to the present stage is : ( εr ; ) j = ( εr ; ) j - 1 + ( A & ; ) j ( 18 ) ( 19 - a ) where ( Er ...
... present stage is Aj , the mean strain increment of component r¡ becomes : Σ ( A ) ; = 2 ; 4 € p ( Δε 1 = 1 Δε Hence , the total strain up to the present stage is : ( εr ; ) j = ( εr ; ) j - 1 + ( A & ; ) j ( 18 ) ( 19 - a ) where ( Er ...
Contents
HYDRODYNAMIC FORCES | 1 |
WaveCurrent Force on Horizontal Cylinder | 7 |
Tensions on Silt Curtains in Currents and Waves | 13 |
Copyright | |
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added mass amplitude analysis applied approach approximation assumed body boundary calculated circular compared components computed considered correlation corresponding cylinder damping defined depends depth described determined direction distribution drag coefficient drift force effect elements Engineering equation estimate experimental experiments expressed extreme factor failure Figure flow fluid free surface frequency function given horizontal hydrodynamic important included increase indicate integral length lift lift force linear load maximum mean measured Mechanics method mode motion nonlinear normal obtained Offshore oscillation parameters period pipeline potential predicted present pressure probability problem random range ratio REFERENCES relative reliability represented respectively response second order separation shear ship shown shows simulation solution spectrum structure surface Table term theory transverse uncertainty variables varying velocity vertical vortex wave force wave height