Dynamic performance of the NTUA double-chine series hull forms in regular waves

Grigoropoulos, GJ; Damala, DP; Loukakis, TA

dc.contributor.author	Grigoropoulos, GJ	en
dc.contributor.author	Damala, DP	en
dc.contributor.author	Loukakis, TA	en
dc.date.accessioned	2014-03-01T02:52:39Z
dc.date.available	2014-03-01T02:52:39Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35975
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-77956991151&partnerID=40&md5=df78a5befc0119a3f9877b5b7b301495	en
dc.subject.other	Dynamic performance	en
dc.subject.other	Experimental investigations	en
dc.subject.other	Hull forms	en
dc.subject.other	Model tests	en
dc.subject.other	Planing surface	en
dc.subject.other	Regular waves	en
dc.subject.other	Resistance characteristics	en
dc.subject.other	Scaled models	en
dc.subject.other	Sea state	en
dc.subject.other	Technical universities	en
dc.subject.other	Two-point	en
dc.subject.other	Boats	en
dc.subject.other	Ocean currents	en
dc.subject.other	Ships	en
dc.title	Dynamic performance of the NTUA double-chine series hull forms in regular waves	en
heal.type	conferenceItem	en
heal.publicationDate	2010	en
heal.abstract	A systematic series of double-chine, wide-transom hull forms with warped planing surface has been developed at the Laboratory for Ship & Marine Hydrodynamics (LSMH) of the National Technical University of Athens (NTUA) during the last 15 years. The series, inspired by a proposal of Savitsky et al (1972), provides a handy and suitable base for the design of medium and large modern monohull ships and pleasure craft, which operate at high but pre-planing speeds. The series consists of five hull forms with L/B ratios equal to 4.00, 4.75, 5.50, 6.25 & 7.00. Two scaled models for each hull form have been constructed and tested at six displacements, including very light ones. The resistance characteristics of the series were presented by Grigoropoulos and Loukakis (2002). On the way to investigate systematically the dynamic performance of the series in waves, model tests have been carried out in regular waves and the results are presented in this paper. The tests encompass three level-keel displacements and two speeds corresponding to Fn = 0.34 and 0.68. The RAO curves for heave, pitch, acceleration at two points along the hull as well as added resistance are presented. Furthermore, the ambitious and time-consuming experimental investigation which is underway to test the hull forms of the series in sea states is described.	en
heal.journalName	2nd Chesapeake Power Boat Symposium 2010	en
dc.identifier.spage	44	en
dc.identifier.epage	58	en