Abstract
Two kinds of semi-active sloshing suppression control methods for the contained liquid in the vessel are presented. The sloshing suppression control algorithm of both method harnesses the switching two natural frequencies of the system in response to the sloshing status in the vessel, which provides the vertical bulkhead in it so as to divide the vessel but communicate at the bottom. The efficiencies of two presented semi-active sloshing suppression control methods are examined with numerical simulations.
