The invention provides a dual-purpose
fin stabilizer used at a zero speed and a certain speed. The dual-purpose
fin stabilizer mainly consists of a main wing, a wing flap and a
hydraulic cylinder, wherein the main wing is hinged to the wing flap through a rotating shaft; the wing flap is divided into two symmetrical parts, and the two parts are respectively hinged to the main wing; the
hydraulic cylinder is fixed in the main wing; the end part of a hydraulic rod is hinged to a connecting rod; one end of the connecting rod is hinged to the hydraulic rod, and the other end of the connecting rod is hinged to the wing flap; a large rotating shaft is fixedly connected with the main wing; when the
fin stabilizer works, the large rotating shaft drives the whole device to swing up and down to generate lifting force, so that stabilizing is realized; at a certain speed, the
hydraulic cylinder is controlled by a control program to retract the hydraulic rod, and the wing flap is driven to close to reduce resistance; and at a zero speed, the hydraulic rod extends to enable the wing flap to be opened, so that the lifting force is enlarged. The dual-purpose fin stabilizer disclosed by the invention can work when a vessel is at a certain speed and at a zero speed, and is simple in structure, high in stabilizing efficiency, and low in flow
noise; and the dual-purpose fin stabilizer is symmetrically arranged on two sides of the vessel (figures are respectively starboard), and is suitable for all kinds of vessels.