Global hydroelastic analysis of ultra large container ships by improved beam structural model
ABSTRACT: Some results on the hydroelasticity of ultra large container ships related to the beam structural model and restoring stiffness achieved within EU FP7 Project TULCS are summarized. An advanced thin-walled girder theory based on the modified Timoshenko beam theory for flexural vibrations wi...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2014-12-01
|
| Series: | International Journal of Naval Architecture and Ocean Engineering |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2092678216302710 |
| _version_ | 1818477000719859712 |
|---|---|
| author | Ivo Senjanović Nikola Vladimir Marko Tomić Neven Hadžić Šime Malenica |
| author_facet | Ivo Senjanović Nikola Vladimir Marko Tomić Neven Hadžić Šime Malenica |
| author_sort | Ivo Senjanović |
| collection | DOAJ |
| description | ABSTRACT: Some results on the hydroelasticity of ultra large container ships related to the beam structural model and restoring stiffness achieved within EU FP7 Project TULCS are summarized. An advanced thin-walled girder theory based on the modified Timoshenko beam theory for flexural vibrations with analogical extension to the torsional problem, is used for formulation of the beam finite element for analysis of coupled horizontal and torsional ship hull vibrations. Special attention is paid to the contribution of transverse bulkheads to the open hull stiffness, as well as to the reduced stiffness of the relatively short engine room structure. In addition two definitions of the restoring stiffness are considered: consistent one, which includes hydrostatic and gravity properties, and unified one with geometric stiffness as structural contribution via calm water stress field. Both formulations are worked out by employing the finite element concept. Complete hydroelastic response of a ULCS is performed by coupling 1D structural model and 3D hydrodynamic model as well as for 3D structural and 3D hydrodynamic model. Also, fatigue of structural elements exposed to high stress concentration is considered. KEY WORDS: Hydroelasticity, Container ship, Beam theory, Restoring stiffness, Finite element method |
| first_indexed | 2024-12-10T09:32:26Z |
| format | Article |
| id | doaj.art-f93d0e81a9f544d6aec1d442a516ae36 |
| institution | Directory Open Access Journal |
| issn | 2092-6782 |
| language | English |
| last_indexed | 2024-12-10T09:32:26Z |
| publishDate | 2014-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Naval Architecture and Ocean Engineering |
| spelling | doaj.art-f93d0e81a9f544d6aec1d442a516ae362022-12-22T01:54:18ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822014-12-016410411063Global hydroelastic analysis of ultra large container ships by improved beam structural modelIvo Senjanović0Nikola Vladimir1Marko Tomić2Neven Hadžić3Šime Malenica4University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia; Corresponding authorUniversity of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, CroatiaUniversity of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, CroatiaUniversity of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, CroatiaBureau Veritas, Research Department, Paris, FranceABSTRACT: Some results on the hydroelasticity of ultra large container ships related to the beam structural model and restoring stiffness achieved within EU FP7 Project TULCS are summarized. An advanced thin-walled girder theory based on the modified Timoshenko beam theory for flexural vibrations with analogical extension to the torsional problem, is used for formulation of the beam finite element for analysis of coupled horizontal and torsional ship hull vibrations. Special attention is paid to the contribution of transverse bulkheads to the open hull stiffness, as well as to the reduced stiffness of the relatively short engine room structure. In addition two definitions of the restoring stiffness are considered: consistent one, which includes hydrostatic and gravity properties, and unified one with geometric stiffness as structural contribution via calm water stress field. Both formulations are worked out by employing the finite element concept. Complete hydroelastic response of a ULCS is performed by coupling 1D structural model and 3D hydrodynamic model as well as for 3D structural and 3D hydrodynamic model. Also, fatigue of structural elements exposed to high stress concentration is considered. KEY WORDS: Hydroelasticity, Container ship, Beam theory, Restoring stiffness, Finite element methodhttp://www.sciencedirect.com/science/article/pii/S2092678216302710 |
| spellingShingle | Ivo Senjanović Nikola Vladimir Marko Tomić Neven Hadžić Šime Malenica Global hydroelastic analysis of ultra large container ships by improved beam structural model International Journal of Naval Architecture and Ocean Engineering |
| title | Global hydroelastic analysis of ultra large container ships by improved beam structural model |
| title_full | Global hydroelastic analysis of ultra large container ships by improved beam structural model |
| title_fullStr | Global hydroelastic analysis of ultra large container ships by improved beam structural model |
| title_full_unstemmed | Global hydroelastic analysis of ultra large container ships by improved beam structural model |
| title_short | Global hydroelastic analysis of ultra large container ships by improved beam structural model |
| title_sort | global hydroelastic analysis of ultra large container ships by improved beam structural model |
| url | http://www.sciencedirect.com/science/article/pii/S2092678216302710 |
| work_keys_str_mv | AT ivosenjanovic globalhydroelasticanalysisofultralargecontainershipsbyimprovedbeamstructuralmodel AT nikolavladimir globalhydroelasticanalysisofultralargecontainershipsbyimprovedbeamstructuralmodel AT markotomic globalhydroelasticanalysisofultralargecontainershipsbyimprovedbeamstructuralmodel AT nevenhadzic globalhydroelasticanalysisofultralargecontainershipsbyimprovedbeamstructuralmodel AT simemalenica globalhydroelasticanalysisofultralargecontainershipsbyimprovedbeamstructuralmodel |