Ship Design, Construction of Vessels   

DOI: https://dx.doi.org/10.24866/2227-6858/2019-2-6

Bugaev V., Dam Van Tung.

VICTOR BUGAEV, Doctor of Engineering Sciences, Professor, ORCID 0000-0001-8778-620X, e-mail: v_bugaev@mail.ru
DAM VAN TUNG, Postgraduate Student, e-mail: damvantung@mail.ru
Department of Shipbuilding and Ocean Engineering, School of Engineering
Far Eastern Federal University
8 Sukhanova St., Vladivostok, Russia, 690091

Ensuring the strength of the fishing vessel hull

Abstract: Adequate estimation of the stress-strain state of the ship's hull as a complex spatial system requires using of modern research methods, accurate description and fixing of structures, and determination of loads in accordance with the requirements of the rules of RMRS (The Russian Maritime Register of Shipping). To assess the optimality of the hull structures, the application of experimental and numerical methods is an extremely relevant and convenient solution. Experience shows that numerical studies, in comparison with experimental ones, have advantages in terms of realization and cost. The purpose of the study is to determine the stress-strain state and the optimization of hull structures (using the example of refrigerated hold) of the fishing vessel in order to reduce its metal consumption and increase economic efficiency. The article presents the results of optimizing the hull structure of the fishing vessel by using numerical methods that allow determining not only the best dimensions of members of ship's hull in terms of minimum mass, but also to estimate the economic effect. Special attention is paid to the study of the dependence of stresses, displacements and masses on the value of the spacing, the size of the frames and beams and the thickness of the floor, taking into account the requirements of the rules of RMRS.

Keywords: optimization of hull structures, hull strength of the ship, local strength.

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