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

Authors : Emre Peşman, Hasan Ölmez, Metin Taylan

Pages : 1-15

Doi:10.54926/gdt.1079396

View : 77 | Download : 63

Publication Date : 2024-06-30

Article Type : Research Paper

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.
Keywords : Paramatrik yalpa hareketi, başlangıç değerleri, yalpa önleme tankları, pasif tanklar