本文以截片理論為基礎，使用四階Runge-Kutta數值方法求解計算穿浪型雙體船在波浪中運動反應的時程領域模擬；文中並且考慮因大波浪、大運動引起水面下船體形狀改變所造成的非線性影響，特別以準穩定狀態分析的方式處理。經過計算模擬，發現其與傳統型雙體船相比，在某些特定波浪頻率及波高下的穿浪型雙體船的舯船體確實能夠發揮作用，達到減少縱搖和起伏運動反應的效果，證明此類船舶在某些波況中的確具有更優異的耐海性能。

In the paper, based on the strip theory, the time domain simulation for the motions of the wave-piercing catamaran ship in longitudinal waves is calculated by the 4th Runge- Kutta method. The nonlinear effects caused by the change of underwater hull body, the large wave amplitude and the large ship motion are considered and treated by the quasi-steady method. After comparing with the conventional catamaran, we find that the central bow hull body of wave-piercing catamaran ship works well at some specific wave frequencies, especially while pitch and heave motions are large. The present results prove that the wave-piercing catamaran ship indeed has the superior sea keeping performance at some wave conditions.

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