Hydrodynamic Performance of A Patrol Vessel
Keywords:
Stability, seakeeping, resistance, patrol vessel, Malaysian waterAbstract
The objectives of this study are to assess the hydrodynamic performance in terms of
stability, seakeeping and resistance of patrol vessel hull and analyze the performance based
on suitable regulations. Righting Lever (GZ) curve was plotted according to the three
loading conditions and the obtained results were compared with the 2008 Intact Stability
(IS) Code. In terms of the stability, the patrol vessel passes all the criteria and therefore
indicate a good intact stability condition. The seakeeping regulation utilized in this study
is NATO STANAG 4154 with the criteria used are the Root Mean Square (RMS) roll angle,
RMS pitch angle, RMS vertical acceleration, RMS lateral acceleration and Motion
Sickness Incidence (MSI). The vessel passes all the required criteria when operating at the
Straits of Malacca but failed to meet certain criteria of the regulation when operating at
the South China Sea. Lastly, the resistance data was compared with resistance test that was
carried out in the towing tank at the Marine Technology Centre (MTC), Universiti
Teknologi Malaysia (UTM). Both results show a good agreement in terms of the resistance
and effective power with small percentage difference of only 11.324% and 11.226%,
respectively.
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