초록 열기/닫기 버튼
The Anti-Rolling Tank(ART) has an advantage over the other roll stabilizing devices, when ship is staying and working at one site ofsea. An important design point of ART is the tank tuning, that is, matching the tank natural period to the ship’s roll natural period. Since the load condition and consequently the roll natural period of ship is to be changed widely, the natural period of ART also hasto be changed widely. In case of the existing U-tube type ART with a single layer duct, the tank natural period can be changed in arelatively narrow range. This paper suggests a new U-tube type ART system using a double layer duct to enable wide change of ARTnatural period. Through the roll experiments performed in regular beam waves for a box-type model ship, it is shown that the doublelayer duct ART has about two times wider period range and a better reducing effect of roll magnitude than the single layer duct ART.
키워드열기/닫기 버튼
Double layer duct, Anti-rolling tank, Period control, Experimental study
