Hydroelastic vibratory response of ultra large container ships

Im, Hong-Il and Malenica, Šime and Vladimir, Nikola and Choi, Byung-Ki and Jung, Byoung-Hoon and Cho, Dae Seung (2014) Hydroelastic vibratory response of ultra large container ships. = Hydroelastic vibratory response of ultra large container ships. In: The Annual Autumn Conference The Society of Naval Architects of Korea, 06-07.11.2014., Changwon, Južna Koreja.

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Official URL: http://bib.irb.hr/prikazi-rad?&rad=786147

Abstract

It is obvious that the importance of hydroelastic vibratory responses (springing and whipping) of hull structure induced by ocean wave and its effect on the structural fatigue damage is increasing with relatively higher flexibility of hull as the size of ships gets bigger. Despite many efforts to evaluate the springing phenomenon using numerical analyses and experimental studies so far, its influence on the quantitative design demand in the FLS (Fatigue Limit State) or ULS (Ultimate Limit State) point of view has not been set properly. This study shows the state-of-the-art and needs in structural design of ultra large container carriers (ULCC), and the realized contribution through the Project TULCS. Hence, reviews on methodology and current status of different methods and tools for structural design of ultra large container carrier is presented. Modeling of ship structure as a beam and 3D FE model for preliminary design stage and final checking is mentioned. Different fluid-structure interaction issues are considered, i.e. steady-state and dynamic response, combined with linear and nonlinear wave load. Also, development of numerical methods and software, utilizing model tests and full scale measurements of a 9, 200 TEU class container carrier, are presented. Finally the opinions on a practical approach to the structural design of ULCC considering the springing and whipping effect are suggested in the view point of structural designer.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Container ships, TULCS Project, Springing, Whipping, Numerical methods, Model tests, Full-scale measurements
Subjects: TECHNICAL SCIENCE > Shipbuilding
Divisions: 600 Department of Naval Engineering and Marine Technology > 650 Chair of Marine Machinery and System Design
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 23 May 2016 10:48
Last Modified: 27 Oct 2017 09:51
URI: http://repozitorij.fsb.hr/id/eprint/5911

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