Naslov
Parametric rolling estimation on high waves

Autori
Prpić-Oršić, Jasna ; Čorić, Većeslav ; Turk, Anton

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 5th International Conference on Computer Aided Design and Manufacturing : CADAM 2007 / Obsieger, Boris - Rijeka : Zigo, 2007, 71-73

ISBN
978-953-7142-24-7

Skup
International Conference on Computer Aided Design and Manufacturing (5 ; 2007)

Mjesto i datum
Medulin, Hrvatska, 25.09.2007. - 29.09.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
parametric rolling; seakeeping; nonlinear ship motion; extreme motion

Sažetak
The development of a general procedure for the analytical approximation of the restoring arm in regular head waves is presented. The aim of the approximation is to obtain an analytical and accurate means for nonlinear parametric roll prediction. The model is based on a modified STF strip method developed for calculation of coupled heaving and pitching motion in vertical plane for large amplitudes. The non-linear effects due to large amplitude motion and variation of the wetted surface are taken into account through the variable hydrodynamic and restoring coefficients. To solve the coupled non-linear time depending equations of motions, the trigonometric series and perturbation method is applied. The roll motion is intended to be modelled dynamically using a single degree of freedom, whereas the coupling with nonlinear heave and pitch is taken into account by means of hydrostatic calculations with considering dynamic effects.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja

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