Uzdužna granična čvrstoća oštećenog trupa tankera

Andrić, Jerolim and Kitarović, Stanislav and Plavšić, Maja and Žarko, Ana (2014) Uzdužna granična čvrstoća oštećenog trupa tankera. = Hull girder ultimate strength of a damaged oil tanker. In: XXI. simpozij Teorija i praksa brodogradnje, in memoriam prof. Leopold Sorta = The 21st symposium Theory and practice shipbuilding, in memoriam prof. Leopold Sorta, 02-04.10.2014., Baška; Croatia.

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Abstract (Croatian)

U radu su provedene analize uzdužne granične čvrstoće različitih konstrukcija trupa broda za prijevoz nafte s dvostrukom oplatom oštećenog sudarom i/ili nasukavanjem. Pri tome je za određivanje graničnih (vertikalnih) momenata savijanja i kolapsnih sekvenci razmatranih konstrukcija korištena inkrementalno-iterativna metoda analize progresivnog kolapsa propisana u okviru nadolazećih IACS harmoniziranih pravila (H-CSR). Razmatrane su tri karakteristicne varijante poprecnog presjeka glavnog rebra trupa tankerskih konstrukcija različitih dimenzija i geometrije (Aframax, Suezmax i VLCC). Pozicija oštećenja boka i/ili dna broda definirana je u skladu s IACS H-CSR. Predložene analitičke formulacije ovisnosti smanjenja graničnog momenta savijanja trupa (u odnosu na neoštećeno stanje) o veličini i poziciji oštećenja određene su analizom rezultata sistematskog variranja veličine oštećenja boka ili dna broda. U konačnici su uspoređene kolapsne sekvence određene za neoštećeno i oštećeno stanje (prema zahtjevima IACS H-CSR).

Abstract

Within the scope of the presented work a hull girder ultimate strength analyses of the double hull oil tanker structures damaged by the collision or grounding is performed. An incremental-iterative progressive collapse analysis method prescribed by the forthcoming IACS Harmonized Common Structural Rules (H-CSR) is used for determination of the ultimate (vertical) bending moments and collapse sequences of the considered structures. Three characteristic variants of the oil tanker main frame cross sections of a different geometry and size (Aframax, Suezmax and VLCC) are considered. The position of a ship’s side and/or bottom damage is defined in accordance with the IACS H-CSR. Proposed analytical formulations of the relationship between reduction of the hull girder ultimate bending moment (with respect to the undamaged state) and damage size are based on the results of a systematic variation of a ship’s side or bottom damage size. Finally, comparison of the collapse sequences determined for the undamaged and damaged state (defined by IACS H-CSR) of the considered structures is performed.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: granična čvrstoća trupa; nasukavanje; ošteceni brod; sudar; tankerska konstrukcija
Keywords (Croatian): collision; damaged ships; hull girder ultimate strength; grounding; tanker structure
Subjects: TECHNICAL SCIENCE > Shipbuilding
Divisions: 600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 15 May 2015 11:07
Last Modified: 22 Sep 2016 14:06
URI: http://repozitorij.fsb.hr/id/eprint/4162

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