The nonlinear parametric excitation is approched by a Volterra system.Monte-Carlo simulations are used to analyse the two most probable roll modes of a RoRo-ship due to the parametric excitation.

• 以伏特娜系统来探讨非线性参数激振现象，并利用蒙地卡罗模拟分析驶上驶下船最有可能因参数激振而造成之横摇模式。