Nonlinear Time Domain Simulation of the Motions of Floating Bodies in Waves

Papanikolaou, A; Spanos, D

dc.contributor.author	Papanikolaou, A	en
dc.contributor.author	Spanos, D	en
dc.date.accessioned	2014-03-01T02:49:29Z
dc.date.available	2014-03-01T02:49:29Z
dc.date.issued	2003	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34604
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0942277437&partnerID=40&md5=8560ac436496213d6b2cffb13ab995eb	en
dc.subject	Drift	en
dc.subject	Non-linear motions	en
dc.subject	Offshore structures	en
dc.subject	Simulation	en
dc.subject	Time domain	en
dc.subject.other	Computer simulation	en
dc.subject.other	Degrees of freedom (mechanics)	en
dc.subject.other	Diffraction	en
dc.subject.other	Equations of motion	en
dc.subject.other	Extrapolation	en
dc.subject.other	Frequency domain analysis	en
dc.subject.other	Gravitation	en
dc.subject.other	Green's function	en
dc.subject.other	Hydrodynamics	en
dc.subject.other	Integration	en
dc.subject.other	Kinematics	en
dc.subject.other	Mathematical models	en
dc.subject.other	Offshore structures	en
dc.subject.other	Radiation	en
dc.subject.other	Ships	en
dc.subject.other	Time domain analysis	en
dc.subject.other	Floating bodies	en
dc.subject.other	Non-linear motions	en
dc.subject.other	Wave conditions	en
dc.subject.other	Water waves	en
dc.title	Nonlinear Time Domain Simulation of the Motions of Floating Bodies in Waves	en
heal.type	conferenceItem	en
heal.publicationDate	2003	en
heal.abstract	A time domain simulation method for the prediction of the motions and loads of arbitrarily shaped floating bodies in waves is presented. The method is essentially quasi-nonlinear, as it considers the hydrodynamic interaction effects of body and waves by use of linear potential theory but fully accounts for the nonlinearities induced by the actual body dynamics and kinematics. The present time domain method has been applied for validation purposes to the simulation of the motions of two 3D cylindrical bodies and numerical results are compared with corresponding results obtained by application of exact, small amplitude second-order frequency domain theories and model experiments. The method seems to capture exactly all first-order and satisfactorily the dominant part of the occurring second-order effects. However, further systematic studies are necessary to conclusively assess the validity of the method for the assessment of the nonlinear behavior of arbitrarily shaped floating bodies in extreme wave conditions.	en
heal.journalName	Proceedings of the International Offshore and Polar Engineering Conference	en
dc.identifier.spage	1916	en
dc.identifier.epage	1922	en