Flexible transverse-shaft fin stabilizer

Abstract

The invention provides a flexible transverse-shaft fin stabilizer. The flexible transverse-shaft fin stabilizer comprises a fin shaft and two hydraulic cylinders, wherein the fin shaft is mounted on a flexible fin face of the fin shaft, two support structures are arranged inside the fin face, the fin shaft and a bow buttcock line of a ship are parallelly mounted on the ship, the hydraulic cylinders are controlled by a controller, cylinder rods of the two hydraulic cylinders are hinged to the two support structure, and cylinder bodies of the two hydraulic cylinders are hinged onto the ship. Whenever the ship is still or moving, the shape of the fin face can be adjusted by extension of the hydraulic cylinders, swinging can be realized to drive the fin face to transversely swing around the fin shaft so as to generate transverse torque and achieve the purpose of reducing transverse rolling. The flexible transverse-shaft fin stabilizer has the advantages of large generated lifting force, small resistance, low noise and energy loss and the like.

Description

technical field [0001] The invention relates to a device for reducing rolling of a ship, in particular to a flexible transverse axis fin stabilizer device. Background technique [0002] At present, the most commonly used and most successfully applied ship active anti-rolling device is the fin stabilizer, and the anti-rolling effect can reach more than 90%. High-speed ships are generally equipped with stabilizer fins. However, only when the ship's speed is high, the fin stabilizers can effectively stabilize the roll, and when the ship is at low or zero speed, the fin stabilizers can hardly stabilize the roll. In recent years, with the development of marine engineering, more and more ships need to operate at zero speed. In order to complete fixed-point action at sea under wind and wave conditions, zero speed stabilization is urgently needed. However, the lift generation principle of existing fin stabilizers is similar to that of fixed-wing aircraft. Only when the fins are in...

AI Technical Summary

Problems solved by technology

In China, in recent years, the 704 Research Institute of China Shipbuilding Industry Corporation has successfully developed the first set of retractable fin stabilizers in China. The fin stabilizers, known as "marine shark fins", are essential devices for ships to maintain a safe posture in strong winds and waves. , "can bend and stretch" on both sides of the hull to achieve small resistance, less space occupation, and light weight. Some universities and research institutions have actively explored the zero-speed stabilizer fins. The effective lift mechanism proposed a zero-speed fin stabilizer using the Weis-Fogh structure, and then through further research gave a zero-speed fin stabilizer system based on the single-wing snap-shot working method, but the ship at low or zero speed The lower anti-shake effect is not very obvious

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