In this study, the three-dimensional source distribution method in time domain was used to simulate the motions of the wave-piercing catamaran ship in Longitudinal waves. The wave-piercing catamaran ship is a catamaran ship with a central bow hull body which is expected to provide the extra restoring force and hydrodynamic force to reduce the pitch motion in large waves. The three-dimensional pulsating source based on panel method is used to calculate the related hydrodynamic coefficients with respect to different drafts in the frequency domain, which can be applied to establish the data base for the time domain calculation through the 4th Runge-Kutta method. From the comparisons with the conventional catamaran ship, we find that the central bow hull body of wave-piercing catamaran ship indeed works well on the pitch motion reduction at some specific wave frequencies, especially while the ship sail with high speed in large wave. Therefore the validity of the central bow hull body of the wave-piercing catamaran ship can be proved.
|Number of pages||8|
|Journal||Journal of Taiwan Society of Naval Architects and Marine Engineers|
|Publication status||Published - 2014 May 1|
All Science Journal Classification (ASJC) codes
- Ocean Engineering
- Mechanical Engineering