An attitude adaptive control device suitable for water jet propulsion ships

Abstract

The present invention is an attitude self-adaptive control device suitable for water-jet propelled ships, comprising a stern seal plate and several wing plates arranged below the stern seal plate, a number of supports are arranged at equal intervals on the upper end surface of the stern seal plate, and a plurality of support plates There is a first hydraulic push rod and a second hydraulic push rod between them, the first hydraulic push rod is located above the second hydraulic push rod and both are on the same vertical plane, the first hydraulic push rod is connected to the first hydraulic push rod through the connecting rod The rudder stock is connected, the lower end surface of the first rudder stock is fixedly connected with the upper end surface of the wing plate; the second hydraulic push rod is connected with the second rudder stock through the connecting rod, and the lower end surface of the second rudder stock is fixedly connected with the upper end surface of the wing plate . The present invention is applicable to an attitude self-adaptive control device for water-jet propelled ships. At low speed, the wing plate is parallel to the longitudinal section of the ship, which plays the role of rectification and improves the course stability of the ship; The angle of attack acts as a cutoff plate to reduce the stern tilt of the ship, thereby reducing the hull resistance and increasing the speed.

Description

technical field [0001] The invention relates to a control device, in particular to an attitude self-adaptive control device suitable for water-jet propulsion ships. Background technique [0002] Due to the requirements of the overall layout, the water-jet propulsion ship generally adopts a U-shaped square tail, that is, the bottom shape line is relatively smooth, and the stern seal plate is close to a rectangle. The heading stability of this type of ship is relatively poor, especially at low speeds, frequent rudder steering is required to maintain straight-line navigation. Measures such as adding dead wood and tail fins to the tail can improve the heading stability at low speeds, but it will increase the resistance of the ship at high speeds. And the contribution to the trim attitude adjustment of the ship is limited. On the other hand, for surface ships with high speeds, stern rolls are prone to occur during navigation, resulting in increased hull resistance and a decrease...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of the existing ship-shaped stern structure without stern or stern fins at low speeds, frequent steering is required to maintain straight navigation, and the increase of ship resistance caused by sterns or stern fins at high speeds, etc., provides a water jet propulsion ship. Attitude Adaptive Control Device

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