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Research Bulletin by RS

Strength calculations and development of recommendations for the safe operation of a ship with wide hatch openings
Authors: O.A. Goretyi, V.A. Kompanets, O.E. Surov

Abstract

Longitudinal strength calculations results for a ship's hull under simultaneous action of bending moments in vertical and horizontal planes and torsion moments are shown in the paper. Calculations have been carried out for the ship in service, which has wide hatch openings, for both as-built and corroded hull condition scenarios. Based on the calculations, design concepts of hull's reinforcements for safe service of the ship have been proposed. Additionally, calculations of longitudinal motion and wave bending moments for different variants of loading and speed have been carried out in order to make up recommendations for the safe operating of the ship until the reinforcement measures fulfillment. Control diagrams of still wave bending moments are also presented. Dangerous conditions of ship's loading, speed and wave parameters of sea are defined. Special recommendations for operating the ship have been proposed based on the dangerous conditions. Results of this research and findings can be used for designing and technical operation for guaranteed strength and reliability of ships with wide hatch openings.

Keywords: hull strength, ships with wide hatch openings, torsion, longitudinal strength.

References

1. Rules for the Classification and Construction of Sea-Going Ships. Russian Maritime Register of Shipping, St. Petersburg, 2017. (In Russian)

2. Rules for the Classification Surveys of Ships in Service. Russian Maritime Register of Shipping, St. Petersburg, 2017. (In Russian)

3. Boyko M.S. Obrashhenie glavnogo redaktora [Editor-in-chief address]. Nauchno-tekhnicheskiy sbornik Rossiyskogo morskogo registra sudokhodstva [Research bulletin by Russian Maritime Register of Shipping]. 2016, 42/43, St Petersburg.

4. Maksimadzhi A.I. Kapitanu prochnosti korpusa sudna [About ship's hull strength for a captain]. Leningrad, Sudostroenie Publ., 1988.

5. Surov O.E. Vlijanie proektnyh harakteristik sudna na ego morehodnye i prochnostnye kachestva diss, for kand. techn. nauk [Influence of vessel's project characteristics on its seagoing and strength features. Ph.D tech. sci. diss.]. Vladivostok, 2000, 252 p.

About authors

Goretyi Oleg- FAI "Russian Maritime Register of Shipping",29a, Stanyukovicha st., 690990, GSP, Vladivostok, Russia, e-mail: goretiy.oa@rs-class.org

Kompanets Vasiliy - associate professor, Far Eastern Federal University,8, Sukhanova st., 690090, Vladivostok, Russia, e-mail: kompanets.va@dvfu.ru

Surov Oleg - PhD, associate professor, Far Eastern Federal University,8, Sukhanova st., 690090, Vladivostok, Russia, e-mail: surov.oye@rambler.ru

Issue: 46/47 (2017)



For citation:O.A. Goretyi, V.A. Kompanets, O.E. Surov.Strength calculations and development of recommendations for the safe operation of a ship with wide hatch openings. Research Bulletin by Russian Maritime Register of Shipping. 2017, No. 46/47, pp. 38-45.

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UDC:  629.542.2
Pages:  38-45
Article (.pdf):  Download


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