Rapid anti-rolling device based on passive anti-rolling water tank

Abstract

The invention discloses a rapid stabilization device based on a passive stabilization water tank. The rapid stabilization device comprises a water tank body composed of a left tank room, a right tankroom and a connecting tank room communicating the left tank room with the right tank room. The water tank body is filled with liquid with which the connecting tank room is filled, the liquid pervadesupwards along the left tank room and the right tank room and can generate periodic gravitational torque, an adjusting mechanism for controlling the liquid level of the liquid in the water tank body tobe decreased and increased, a water amount control mechanism and an air pressure adjusting device are arranged in the left tank room, the water amount control mechanism is connected with the water tank body and controls the amount of the liquid in the water tank body to be decreased or increased when the adjusting mechanism controls the liquid level of the liquid in the left tank room to be increased or decreased, and the air pressure adjusting device is used for controlling the liquid level of the liquid in the right tank room to be decreased and supplementing the liquid into the left tank room in the other side through the connecting tank room. A closed type stabilization water tank and an open type stabilization water tank are combined to realize the controllability of the stabilization water tank. Through a three-pronged approach, the rapid stabilization device realizes automatic control through a detection signal. Rolling increase will not be generated within a low-frequency range and a high-frequency range, so that the speed of stabilization is increased greatly.

Description

technical field [0001] The invention relates to the technical field of ship equipment, in particular to a rapid anti-rolling device based on a passive anti-rolling water tank. Background technique [0002] When a ship is navigating and working at sea, due to disturbances in the marine environment such as waves, sea winds, and currents, it will inevitably produce swaying movements. Severe swaying not only affects the navigation of the ship, but also poses a threat to the safety of the ship. It reduces the comfort of people during the voyage, and has a negative impact on the equipment on the ship, and brings unsafe factors to the cargo and personnel on board. The periodical reciprocating motion of a ship around a certain equilibrium position when navigating on still water or waves is called ship swaying. The sway of the ship includes roll, pitch, yaw, surge, sway and heave (heave). Among them, rolling, pitching and heaving have a greater impact on ships, and the three can us...

AI Technical Summary

Problems solved by technology

[0004] (1) Impact on ship performance: severe rolling may cause the ship to lose stability and capsize, pitching and heaving will cause the propeller to fly, resulting in a decrease in speed

Severe swaying increases the resistance of the ship; the condition of the propeller deteriorates, making it difficult to maneuver the ship

[0005] (2) The impact on ship structure and equipment: when the ship sways, the bottoming phenomenon will occur, which will cause additional stress in the hull components and damage some components

Swaying can cause waves on deck and damage equipment and structures on deck

[0006] (3) The swaying of the ship will affect the normal work of mechanical equipment, instruments and meters; at the same time, it will cause seasickness of the crew and passengers, and deteriorate the working and living environment; it will also cause cargo movement or collapse and damage to cargo

[0008] (5) The swaying of the ship will cause the scientific research equipment to exceed the working environment and affect the collection of scientific research data

[0012] The control scheme of the passive anti-rolling water tank in the above-mentioned patent solves the problem that the traditional passive anti-rolling water tank can only rely on the energy generated by the ship's rolling motion itself to make the water in the water tank flow and generate torque to offset the ship's rolling motion. and greatly increased the anti-rolling frequency range, but there are also some disadvantages at the same time. For example, the method of completely controlling the signal is not only complicated in structure, but also has a high failure rate and high equipment maintenance costs; The rolling water tank cannot achieve the purpose of rapid anti-rolling, that is to say, the anti-rolling water tank in the prior art cannot achieve the speed at which the remaining roll angle tends to zero, which has become the current research process for overcoming the ship's rolling problem. a major obstacle

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