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RE: loadings associated with sea conditions

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We deal with offshore riser design.
In riser design, except of vessel induced motions, there is the whole interaction with conveyed fluids, currents and seabed to be included.
For the structure that is installed on top of the ship, the issues that I can see are (except of loadings from the structure in service):
1) vessel motions (as mentioned by others)
2) interaction with wind and water (especially in storm conditions),
3) the fatigue damage from the long term vessel motions.
I believe most of these data can be obtained from the ship owner.
Mateusz Podskarbi
2H Offshore Inc,
Houston, TX
 -----Original Message-----
From: Ken Peoples [mailto:kspeoples(--nospam--at)]
Sent: Wednesday, February 12, 2003 11:23 AM
To: Seaint
Subject: loadings associated with sea conditions

I have been given a project to consider that involves building a structure to be installed on a ship.  I am looking for some guidance from those of you who are familiar with this type of work.  Perhaps this would be beyond my capabilities and I will ultimately have to decline the work, but I would at least like to look into it to see what is involved before I do so.  This may be too obscure for the general list so if any of you would like to respond in private to kpeoples(--nospam--at) please feel free to do so.
Kenneth S. Peoples, P. E.
Lehigh Valley Technical Associates, Inc.
1584 Weaversville Road
Northampton, PA 18067-9039
Phone: (610) 262-6345
Fax: (610) 262-8188
e-mail: kpeoples(--nospam--at)