A Survey of Ship Motion Stabilization 



Finally, Fig. 8 indicates the effect of speed on roll stabilization. An inter- 

 esting and contrary effect is the increased roll amplitude with increase in per- 

 centage roll stabilization with increased speed. One would expect the natural 

 hull damping to increase in the unstabilized condition and the percentage of roll 

 stabilization to decrease with increased speed. The changing sea environment 



15 



? 10 



O 100 



SHIP SPEED IN RPM 



Fig. 8 - Effect of ship speed on tank effectiveness 



761 



160 



