Yaw drift moment on a floating structure in waves

Spanos, D; Papanikolaou, A

dc.contributor.author	Spanos, D	en
dc.contributor.author	Papanikolaou, A	en
dc.date.accessioned	2014-03-01T02:50:13Z
dc.date.available	2014-03-01T02:50:13Z
dc.date.issued	2005	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34974
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-27744504682&partnerID=40&md5=cfaaf3afb54a414cab010410d1eb42b1	en
dc.subject.other	Computational methods	en
dc.subject.other	Kinematics	en
dc.subject.other	Marine engineering	en
dc.subject.other	Mathematical models	en
dc.subject.other	Mooring	en
dc.subject.other	Numerical methods	en
dc.subject.other	Time domain analysis	en
dc.subject.other	Wave effects	en
dc.subject.other	Waves	en
dc.subject.other	Active dynamic positioning systems	en
dc.subject.other	Floating structure	en
dc.subject.other	Yaw drift moment	en
dc.subject.other	Yaw motion	en
dc.subject.other	Floating drydocks	en
dc.title	Yaw drift moment on a floating structure in waves	en
heal.type	conferenceItem	en
heal.identifier.secondary	OMAE2005-67462	en
heal.publicationDate	2005	en
heal.abstract	The wave induced yaw drift moment on floating structures is of particular interest when the lateral yaw motion of the structure should be controlled by moorings and/or active dynamic positioning systems. In the present paper, the estimation of the yaw drift moment in the modeled natural wave environment is conducted by application of a nonlinear time domain numerical method accounting for the motion of arbitrarily shaped floating bodies in waves. The computational method is based on linear potential theory and includes the non-linear hydrostatic terms in an exact way, whereas the higher-order wave-induced effects are partly approximated. Despite the approximate modeling of the second order hydrodynamic forces, the method proved to satisfactorily approach the dominant part of the exerted hydrodynamic forces enabling the calculation of drift forces and of other drift effects in irregular waves. Hence, the subject yaw drift moment in the modeled natural wave environment is derived, resulting to a basic reference for the design of similar type floating structures. Copyright © 2005 by ASME.	en
heal.journalName	Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE	en
dc.identifier.volume	2	en
dc.identifier.spage	833	en
dc.identifier.epage	839	en