## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, Parts 1-2American Society of Mechanical Engineers, 2004 - Arctic regions |

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Page 643

In this model

joints and

tower and foundation are simulated as 4

...

In this model

**mass**no . 1 is placed at the nacelle ,**mass**no.2 , 3 at tower splicingjoints and

**mass**no.4 at foundation exposed to wave loads . Blades / nacelle ,tower and foundation are simulated as 4

**masses**Lumped**mass**model and wave...

Page 687

Added

surface . Since the added

approximations are used to scale the amount of added

method [ 1 ] ...

Added

**mass**is also dependent upon the proximity of the member to the freesurface . Since the added

**mass**begins to drop off rapidly , the followingapproximations are used to scale the amount of added

**mass**in the simplifiedmethod [ 1 ] ...

Page 861

[ x , lop lop The pendulum length 1pend is taken as the length between the crane

top and the center of

, some typical eigenperiods yield : top z ] . Also a slew angle B , is given ...

[ x , lop lop The pendulum length 1pend is taken as the length between the crane

top and the center of

**mass**of the load . For the crane vessel studied is this project, some typical eigenperiods yield : top z ] . Also a slew angle B , is given ...

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added amplitude analysis angle applied approach ASME barge bending body boundary cable calculated coefficients combined component computed connection considered Copyright corresponding damage damping deck depth determined developed diffraction direction displacement dynamic effect element Engineering equation factor fatigue field Figure floating force FPSO free surface frequency function given heading heave height horizontal hull iceberg impact increase installation integration interaction International jacket joint length limit linear load mass maximum mean measured Mechanics method model tests mooring mooring lines motion natural nonlinear numerical obtained Offshore operation parameters performed period pile platform position possible potential predicted presented pressure problem range response riser ship shown shows simulation solution Spar stiffness stress structure surface Table tank tension tests values velocity vertical vessel wave wind