A CATIA® ship-parametric model for isogeometric hull optimization with respect to wave resistance

Ginnis, AI; Feurer, C; Belibassakis, KA; Kaklis, PD; Kostas, KV; Gerostathis, TP; Politis, CG

dc.contributor.author	Ginnis, AI	en
dc.contributor.author	Feurer, C	en
dc.contributor.author	Belibassakis, KA	en
dc.contributor.author	Kaklis, PD	en
dc.contributor.author	Kostas, KV	en
dc.contributor.author	Gerostathis, TP	en
dc.contributor.author	Politis, CG	en
dc.date.accessioned	2014-03-01T02:52:48Z
dc.date.available	2014-03-01T02:52:48Z
dc.date.issued	2011	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36084
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84864647739&partnerID=40&md5=6d8934df5acde909378a93a1d5faf144	en
dc.subject.other	CAD models	en
dc.subject.other	Container ships	en
dc.subject.other	Modelling environment	en
dc.subject.other	Numerical solution	en
dc.subject.other	Optimizers	en
dc.subject.other	Panelization	en
dc.subject.other	Parametric models	en
dc.subject.other	University of Texas	en
dc.subject.other	Wave resistance	en
dc.subject.other	Boundary element method	en
dc.subject.other	Boundary integral equations	en
dc.subject.other	Computer aided design	en
dc.subject.other	Hydrodynamics	en
dc.subject.other	Models	en
dc.subject.other	Optimization	en
dc.subject.other	Shipbuilding	en
dc.subject.other	Shipyards	en
dc.subject.other	Hulls (ship)	en
dc.title	A CATIA® ship-parametric model for isogeometric hull optimization with respect to wave resistance	en
heal.type	conferenceItem	en
heal.publicationDate	2011	en
heal.abstract	In this work we present a generic methodology for implementing, within the CATIA® modelling environment, a parametric model for typical free-form ships so that each instance is represented as a tangentially-continuous (G1-continuous) NURBS multi-patch surface. The methodology has been applied for constructing a container-ship parametric model that is able to generate robustly and efficiently valid hulls for a broad value range of the associated exposed parameters. The so-constructed parametric model is integrated with an, in-house developed, wave-resistance solver and the modeFrontier® optimizer for setting up an environment, that has been tested for optimizing the bow area of a container ship against the criterion of minimum wave resistance under the constraint of given displacement. Our solver adopts the Neumann-Kelvin formulation and combines the Boundary Element Method (BEM) with Isogeometric-Analysis (IGA) for the numerical solution of the resulting Boundary Integral Equation (BIE). It should be stressed that the IGA concept, recently introduced by Tom Hughes and his group at the University of Texas at Austin, aims to intrinsically integrate CAD with Analysis (FEM/BEM solver) by communicating the CAD model of the computation field to the solver without any approximation, e.g., panelization. ©2011: The Royal Institution of Naval Architects.	en
heal.journalName	RINA, Royal Institution of Naval Architects - International Conference on Computer Applications in Shipbuilding 2011, Papers	en
dc.identifier.volume	1	en
dc.identifier.spage	9	en
dc.identifier.epage	20	en