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Pregled bibliografske jedinice broj: 692521

Some aspects of structural modelling and restoring stiffness in hydroelastic analysis of large container ships


Senjanović, Ivo; Vladimir, Nikola; Tomić, Marko; Hadžić, Neven; Malenica, Šime
Some aspects of structural modelling and restoring stiffness in hydroelastic analysis of large container ships // Ships and offshore structures, 9 (2014), 2; 199-217 doi:10.1080/17445302.2012.762728 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 692521 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Some aspects of structural modelling and restoring stiffness in hydroelastic analysis of large container ships

Autori
Senjanović, Ivo ; Vladimir, Nikola ; Tomić, Marko ; Hadžić, Neven ; Malenica, Šime

Izvornik
Ships and offshore structures (1744-5302) 9 (2014), 2; 199-217

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
container ship; hydroelasticity; beam model; restoring stiffness; FEM
(container ship; hHdroelasticity; beam model; restoring stiffness; FEM)

Sažetak
The increase in world trade has largely contributed to the expansion of sea traffic. As a result, the market demand is leading to ultra-large container ships (ULCS), with expected capacity up to 18, 000 TEU (twenty-foot equivalent unit) and length about 400 m, without changes in the operational requirements (speed up to 27 knots). The particular structural design of the container ships leads to open midship sections, resulting in increased sensitivity to torsional and horizontal bending loads that is much more complex to model numerically. At the same time, due to their large dimensions, the structural natural frequencies of ULCS become significantly lower so that the global hydroelastic structural responses (springing and whipping) can become a critical issue in the ship design and should be properly modelled by the simulation tools since the present classification rules do not cover described operating stages completely. There are several research projects worldwide aiming at solving this problem, and one of them is the EU FP7 project TULCS (tools for ultra-large container ships) for development of the integrated design tools, based on numerical procedures, model tests and full-scale measurements. This paper is based on research activities and results of the project, with particular emphasis on the part that deals with global hydroelastic loading and response. Special attention is paid to beam structural model based on the advanced beam theory. It includes shear influence on bending and torsion, contribution of transverse bulkheads to hull stiffness and an appropriate modelling of relatively short engine room structure of ULCS. Along with that, a hydrodynamic model is presented in a condensed form. Further on, a fully consistent formulation of restoring stiffness, which plays an important role in the hydrostatic model, is described. Theoretical contributions are illustrated within the numerical example, which includes a complete hydroelastic analysis of an 11, 400 TEU container ship. In this case, validation of the one-dimensional (1D) finite-element method (FEM) model is done by a correlation analysis with the vibration response of the fine three-dimensional (3D) FEM model. The procedure related to determination of engine room effective stiffness is checked by a 3D FEM analysis of a ship-like pontoon, which has been made according to the 7800 TEU container ship properties. The obtained results confirm that the sophisticated beam model is a very useful numerical tool for the designer and represents a reasonable choice for determining wave load effects on ULCS, in preliminary design stage.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja



POVEZANOST RADA


Projekti:
120-1201703-1704 - Opterećenje i odziv brodskih konstrukcija (SENJANOVIC, Ivo, MZOS ) ( CroRIS)

Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb

Profili:

Avatar Url Ivo Senjanović (autor)

Avatar Url Marko Tomić (autor)

Avatar Url Šime Malenica (autor)

Avatar Url Nikola Vladimir (autor)

Avatar Url Neven Hadžić (autor)

Poveznice na cjeloviti tekst rada:

doi www.tandfonline.com

Citiraj ovu publikaciju:

Senjanović, Ivo; Vladimir, Nikola; Tomić, Marko; Hadžić, Neven; Malenica, Šime
Some aspects of structural modelling and restoring stiffness in hydroelastic analysis of large container ships // Ships and offshore structures, 9 (2014), 2; 199-217 doi:10.1080/17445302.2012.762728 (međunarodna recenzija, članak, znanstveni)
Senjanović, I., Vladimir, N., Tomić, M., Hadžić, N. & Malenica, Š. (2014) Some aspects of structural modelling and restoring stiffness in hydroelastic analysis of large container ships. Ships and offshore structures, 9 (2), 199-217 doi:10.1080/17445302.2012.762728.
@article{article, author = {Senjanovi\'{c}, Ivo and Vladimir, Nikola and Tomi\'{c}, Marko and Had\v{z}i\'{c}, Neven and Malenica, \v{S}ime}, year = {2014}, pages = {199-217}, DOI = {10.1080/17445302.2012.762728}, keywords = {container ship, hydroelasticity, beam model, restoring stiffness, FEM}, journal = {Ships and offshore structures}, doi = {10.1080/17445302.2012.762728}, volume = {9}, number = {2}, issn = {1744-5302}, title = {Some aspects of structural modelling and restoring stiffness in hydroelastic analysis of large container ships}, keyword = {container ship, hydroelasticity, beam model, restoring stiffness, FEM} }
@article{article, author = {Senjanovi\'{c}, Ivo and Vladimir, Nikola and Tomi\'{c}, Marko and Had\v{z}i\'{c}, Neven and Malenica, \v{S}ime}, year = {2014}, pages = {199-217}, DOI = {10.1080/17445302.2012.762728}, keywords = {container ship, hHdroelasticity, beam model, restoring stiffness, FEM}, journal = {Ships and offshore structures}, doi = {10.1080/17445302.2012.762728}, volume = {9}, number = {2}, issn = {1744-5302}, title = {Some aspects of structural modelling and restoring stiffness in hydroelastic analysis of large container ships}, keyword = {container ship, hHdroelasticity, beam model, restoring stiffness, FEM} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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