engleski

Solution of Time Dependent Coupled Nonlinear Equations of Oscilatory Motion

The paper presents a new method of non-linear differential equations solution for the case of high amplitude motion. The non-linear nature of the large amplitude oscillations can be due to change of equation coefficients. The consequences of these changes are non-liner differential motion equations. The problem is defined by the method of perturbation and the final solution is obtained by the trigonometric series method. The method is illustrated on the example of slender ship which oscillates at the water free surface excited by the harmonic wave.

non-linear motion; numerical model; seakeeping; hydrodynamic coefficients

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