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A ship anti-rolling control system based on ship hydrodynamic online prediction

A control system, hydrodynamic technology, applied in the use of hydrofoils to act on the surrounding water surface to reduce the direction of ship motion, instruments, calculations, etc., can solve the problem of not proposing the same or similar methods and so on

Active Publication Date: 2019-03-05
HARBIN ENG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0009] At present, the same or similar methods have not been proposed at home and abroad.

Method used

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  • A ship anti-rolling control system based on ship hydrodynamic online prediction
  • A ship anti-rolling control system based on ship hydrodynamic online prediction
  • A ship anti-rolling control system based on ship hydrodynamic online prediction

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] The invention discloses a ship motion anti-rolling control system based on ship hydrodynamic online prediction, combining figure 1 , is a schematic diagram of the overall structure and implementation process of the system, including marine environment excitation module 1, hull power module 2, motion attitude measurement module 3, hull hydrodynamic online prediction module 4 and fin angle distribution module 5;

[0038] combine Figure 1 to Figure 7 , and its specific implementation steps include:

[0039] (1) The marine environment excitation module 2 exerts an effect on the hull power module 1, so that the hull continuously produces six degrees of freedom motions such as rolling, pitching, and heaving; the sensor in the ship motion attitude measurement module 3 monitors the hull in real time. Elapsed time data η of shaking motion 4 (t), pitch motion time his...

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Abstract

The invention discloses a ship water power online forecast based ship shake reduction control system, and belongs to the technical field of ship and ocean engineering. Online self-adaption forecast ofship water power can be achieved according to a water power equation on the basis of the ship motion parameter real-time forecast and dynamic balancing idea and can be used as a basis of shake reduction control. A sensor module can measure the ship motion parameter, and a water power online estimation module and a fin angle allocation module can perform real-time self-adaption control on ship motion; and compared with the conventional shake reduction control method, the self-adaption and a water power estimation model are more perfect. The ship shake reduction system can be arranged on shipswith single-pair fins or dual-pair fins, can achieve horizontal shake reduction and vertical shake reduction of the ships with single-pair fins, can achieve horizontal shake reduction and vertical shake reduction, and vertical-horizontal shake reduction of the ships with dual-pair fins, can be widely used for shake reduction control of various water ships, and has good application prospect and good economic benefits in the field of ship shake reduction control.

Description

technical field [0001] The invention belongs to the technical field of ships and marine engineering, and in particular relates to a ship anti-rolling control system based on ship hydrodynamic online prediction. Background technique [0002] When a ship is sailing at sea, due to the small motion damping of the ship, the ship will continuously generate six degrees of freedom in wind and waves, which will have a great impact on the performance and safety of the ship's navigation. Among them, the three degrees of freedom of rolling, pitching and heaving have a greater impact on the safety of ships and the sea. Excessive rolling, pitching and heaving movements will cause dangerous situations such as wave slamming, deck waves and propeller speeding. , will have an adverse effect on various performances such as comfort, seaworthiness and safety of the ship, on-board equipment, and the ability of the ship to operate at sea. [0003] In terms of ship safety, severe pitching and heav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B39/06G06F17/50
CPCY02T90/00
Inventor 黄礼敏段文洋韩阳马学文王瑞锋朱鑫徐静郑义吴东伟陈永博
Owner HARBIN ENG UNIV
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