Influence of Different Restoring Stiffness Formulations on Hydroelastic Response of Large Container Ships

Cho, Dae Seung and Hadžić, Neven and Senjanović, Ivo (2013) Influence of Different Restoring Stiffness Formulations on Hydroelastic Response of Large Container Ships. = Influence of Different Restoring Stiffness Formulations on Hydroelastic Response of Large Container Ships. Brodogradnja : časopis brodogradnje i brodograđevne industrije, 64 (3). ISSN 0007-215X. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q3 (2013). Točan broj autora: 3.

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Abstract

Pronounced flexibility of modern container ships can cause falling into resonance with the encounter frequencies of ordinary sea spectrum causing consequently the occurrence of springing. In order to adequately capture such physical phenomena, hydroelasticity methodology for ship structure design has to be applied including the proper definition of the restoring stiffness, being one of the main hydroelastic analysis components. This paper deals with three current restoring stiffness formulations – the consistent one with distributed mass, the consistent one with lumped masses, and the complete one. Formulation of the restoring stiffness via the finite element method is developed as a very useful approach for practical utilization of the hydroelasticity methodology. The validity of the new developed approach is checked on the case of a regular barge. The hydroelasticity of one real life container ship is evaluated and the influence of different restoring stiffness formulations is considered.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	container ship; finite element method; geometric stiffness; hydroelasticity; restoring stiffness
Subjects:	TECHNICAL SCIENCE > Shipbuilding TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science:	Yes
Indexed in Current Contents:	No
Citations JCR:	0 (18.10.2017.)
Quartiles:	Q3 (2013)
Date Deposited:	03 Dec 2014 10:51
Last Modified:	16 Nov 2017 14:09
URI:	http://repozitorij.fsb.hr/id/eprint/3095

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