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 mass no . 1 is placed at the nacelle , mass no . 2 , 3 at tower splicing
joints 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
...
In this model mass no . 1 is placed at the nacelle , mass no . 2 , 3 at tower splicing
joints 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 mass is also dependent upon the proximity of the member to the free
surface . Since the added mass begins to drop off rapidly , the following
approximations are used to scale the amount of added mass in the simplified
method [ 1 ] ...
Added mass is also dependent upon the proximity of the member to the free
surface . Since the added mass begins to drop off rapidly , the following
approximations are used to scale the amount of added mass in the simplified
method [ 1 ] ...
Page 861
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 : [ xw Yoop ? ) ' . Also a slew angle B , is given ...
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 : [ xw Yoop ? ) ' . Also a slew angle B , is given ...
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Contents
PART | 595 |
000000000000000000000000000000000000000000 | 605 |
OFFSHORE TECHNOLOGY | 608 |
Copyright | |
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Common terms and phrases
added amplitude analysis angle applied approach ASME assumed barge bending boundary buoy calculated capacity coefficient combined components computed connection considered Copyright corresponding damage damping deck depth determined developed diameter direction displacement dynamic effect element Engineering equation estimated event factor fatigue field Figure force FPSO frequency function given height horizontal hull iceberg impact increase installation jacket joint length limit linear load marine mass maximum mean measured method model tests mooring mooring lines mooring system motion natural numerical obtained Offshore operation parameters performed period pile pitch platform position possible potential predicted presented pressure problem range relative response riser shear ship shown shows simulations skirt solution spar speed strength stress structure surface Table tank tension trench values velocity vertical vessel wall wave wind