Special Session 70: 

NONLINEAR AND STABILITY ANALYSIS FOR A SHIP WITH A GENERAL ROLL-DAMPING MODEL USING AN ASYMPTOTIC PERTURBATION METHOD

Muhammad Usman
University of Dayton
USA
Co-Author(s):    
Abstract:
In this work, the response of a ship rolling in longitudinal waves is studied under a slow change in frequency. The model is one degree of freedom model for nonlinear ship dynamics. The model consists of the terms containing inertia, damping, restoring forces and external forces. The asymptotic perturbation method is used to study the primary resonance phenomena. The effects of various parameters are studied on the stability of steady states. It is shown that with the variation of bifurcation parameters affects the bending of bifurcation curve. The slope stability theorems are also presented.