The effects of wave spreading on the exciting forces on a tension leg platform.
Dietrich, Rolf A.
Vandiver, J. Kim
MetadataShow full item record
Oil exploration in water deeper than 1000 feet has motivated the development of drilling platforms with dynamic responses superior to those of the conventional jacket structures. One of the most promising of these is the tension leg platform (TLP) , a semi-submersible platform held in place by tension members connected to the ocean bottom. This thesis evaluates the wave force transfer function for the TLP in heave, pitch, and roll motions. This is accomplished by assuming the transfer function for a single leg and then extending that result to include the effect of phase differences between forces on multiple legs, including the effect of wave spreading.
This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library Collection for reasons not now known. It has been included in the digital archive for its historical value to NPS. Not believed to be a CIVINS (Civilian Institutions) title.
Showing items related by title, author, creator and subject.
Sapone, David Thomas. (1990);There has always been a need and desire to improve upon the operability of ships at sea. The driving force behind making improvements can be safety, economic, or militarily oriented. This paper deals with improving a ship's ...
Bebermeyer, Robert E. (Monterey, California ; Naval Postgraduate School, 2002-06);Misfits and mismatches in the welding of ship hull plating may affect survivability after explosions, accidents, or other extreme external forces. Experiments, Slip Line Theory (SLT), and Finite Element Analysis (FEA) help ...
Merrill, Craig F. (Monterey, California. Naval Postgraduate School, 1993-12);The interaction of a single Lamb vortex with a free surface is analyzed numerically through the use of a finite-difference technique. The individual effects of gravity, viscosity, and surface tension are investigated within ...