Dinamika broda u teglju

Ćatipović, Ivan and Degiuli, Nastia and Čorić, Većeslav and Werner, Andreja and Slapničar, Vedran and Radanović, Jadranka (2014) Dinamika broda u teglju. = Dynamics of a ship in towage. In: 21. Simpozij Teorija i praksa brodogradnje (In memoriam prof. Leopold Sorta), SORTA 2014, 2. - 4. listopad 2014., Baška, otok Krk, Hrvatska.

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Dinamika broda u teglju.pdf - Published Version Jezik dokumenta:Croatian

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Official URL: http://bib.irb.hr/prikazi-rad?&rad=715365

Abstract (Croatian)

Tegljenje kao specifična vrsta pomorskog prijevoza često se koristi za instaliranje objekata za bušenje i eksploataciju podvodnih plinskih i naftnih bušotina. Za potrebe ovog istraživanja, razmatra se brod tegljen na valovima u pramac. Jedan kraj linije za tegljenje spojen je s pramcem broda, a drugi se giba pravocrtno konstantnom brzinom. Razmatranja se provode u vertikalnoj ravnini, tako da je brod modeliran kao kruto tijelo s tri stupnja slobode gibanja. Uzbune sile uslijed valova uzete su u obzir, zajedno s dodanom masom i radijacijskim prigušenjem. Za procjenu sile u užetu za tegljenje koristi se pojednostavljeni pristup. Ovaj pristup uzima u obzir aksijalnu i geometrijsku krutost užeta za tegljenje, bez inercijskih sila i prigušenja. Zbog nelinearnih svojstava problema, proračuni su provedeni u vremenskoj domeni. Dobiveni numerički rezultati uspoređeni su s objavljenim eksperimentalnim rezultatima.

Abstract

Towing as a specific type of sea transport is often used for installation of objects intended for drilling and exploitation of underwater gas and oil wells. For the purpose of this research, ship towed in head sea is considered. One end of the towing line is attached to ship's bow and another end has prescribed straight line motion. All considerations are done in the vertical plane so the shipis modeled as a rigid body with three degrees of freedom. Hydrodynamic loadings due to waves are taken into account along with added mass and damping. Simplified approach is used for the assessment of the forces acting on the towed ship due to the towing line. This approach takes into account axial and geometric stiffness of the towing line, disregarding damping and inertial forces. Due to the nonlinear properties of the problem, calculations are performed in the time domain. Obtained numerical results are compared with published experimental results.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: tegljenje broda, uže za tegljenje, gibanja uslijed valova
Keywords (Croatian): ship in towage, towing line, wave-induced motions
Subjects: TECHNICAL SCIENCE > Shipbuilding
Divisions: 600 Department of Naval Engineering and Marine Technology > 610 Chair of Hydromechanics of Marine Structures
600 Department of Naval Engineering and Marine Technology > 630 Chair of Ship Design and Offshore Technology
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 29 Jun 2016 15:04
Last Modified: 02 Oct 2017 11:39
URI: http://repozitorij.fsb.hr/id/eprint/6007

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