Parametric Roll Motion Reduction of a Ship with a Passive Anti-Roll Tank

Author:

Peşman Emre1ORCID,Ölmez Hasan1ORCID,Taylan Metin2ORCID

Affiliation:

1. KARADENİZ TEKNİK ÜNİVERSİTESİ

2. İSTANBUL TEKNİK ÜNİVERSİTESİ

Abstract

In this study, the influence of a U-tube passive anti-roll tank on parametric roll motion has been investigated as a mechanical absorber of a dynamic system. Specifically, this paper concentrates on how the initial conditions of a coupled roll motion and fluid motion in the tank act on the performance of an anti-roll tank. Parametrically excited roll motion was modeled as a single degree of freedom system incorporating heave and pitch effects by means of a time-varying restoring moment. Fluid motion in the tank was modeled as a single degree of freedom system. Coupled equations of motion were solved numerically and the results were presented in the time domain. Furthermore, the results were comparatively depicted as maximum roll amplitudes vs. initial values for a ship with and without an anti-roll U-tube tank.

Publisher

TMMOB Gemi Muhendisleri Odasi

Reference36 articles.

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3. Belenky, VL. (2004). On risk evaluation at extreme seas. Proceedings of the 7th international stability workshop. Shanghai, China, pp. 188–202.

4. Bell, J. and Walker, W.P. (1966). Activated and passive controlled fluid tank system for ship stabilization. SNAME Transaction. Vol. 74, pp. 150–193.

5. Bulian, G. (2004). Approximate analytical response curve for a parametrically excited highly nonlinear 1-DOF system with an application to ship roll motion prediction. Nonlinear Analysis of Real-World Application. Vol. 5, No.4 pp.725–748.

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