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Fan-shaped bow jet positioning and control method for trailing suction hopper dredger

A trailing suction dredger, positioning control technology, applied in two-dimensional position/channel control, steering with injectors, etc., can solve problems such as inconvenient operation, inaccurate control, affecting construction efficiency and production safety, and achieve operational Convenience, improve quality and efficiency, control accurate effect

Active Publication Date: 2014-02-05
CCCC TIANJIN DREDGING +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a special engineering ship - when spraying and unloading mud by the bow of the trailing suction dredger, the trailing suction dredger is required to perform fan-shaped bow spraying positioning control. The existing positioning control method is complicated and inaccurate, which often causes the bow spraying mud. Pile up into a mountain, there are technical problems such as inconvenient operation, which seriously affect the construction efficiency and production safety

Method used

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  • Fan-shaped bow jet positioning and control method for trailing suction hopper dredger
  • Fan-shaped bow jet positioning and control method for trailing suction hopper dredger
  • Fan-shaped bow jet positioning and control method for trailing suction hopper dredger

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Embodiment 1

[0031] A method for controlling the positioning of a trailing suction dredger's fan-shaped bow nozzle, comprising the following specific steps:

[0032] 1) Thrust calculation

[0033] The dynamic positioning system performs thrust calculation and thrust distribution, and controls the propeller and rudder to generate corresponding forces and moments through distribution logic to counteract the external disturbance force and disturbance moment acting on the ship, so that the ship can keep sailing or positioning and meet the heading, Speed, track and accuracy requirements;

[0034] 2) Determine the power management mode

[0035] When the fan-shaped bow spraying of the trailing suction dredger, the power management system should provide two working modes. The first management mode is the normal dredging mode, which is suitable for trailing suction dredging and filling operations; the management system needs to dredge left / right The pump inverter supplies power, and manages the p...

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PUM

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Abstract

The invention relates to a fan-shaped bow jet positioning and control method for a trailing suction hopper dredger, and belongs to the technical field of ship dynamic positioning. The fan-shaped bow jet positioning and control method for the trailing suction hopper dredger comprises the following specific steps: 1, thrust computation: a dynamic positioning system is used for carrying out thrust computation and thrust distribution; 2, power management mode determination: during the fan-shaped bow jet of the trailing suction hopper dredger, a power management system provides two operating modes, the first management mode is a normal dredging mode and is suitable for trailing suction dredging and hydraulic fill operation, and the second management mode is suitable for the dredging operation and mud dumping of a single dredge pump and the hydraulic fill operation of a single pump / a power-reduced double pump; 3, the fan-shaped bow jet positioning process of the trailing suction hopper dredger: after the bow jet begins, under the automatic dynamic positioning mode, the dredger performs fan-shaped bow jet within a set pendulum angle until the bow jet and mud dumping of the whole dredger are finished. The fan-shaped bow jet positioning and control method has the advantages that the operation is convenient, the control is precise, and the quality and efficiency in bow jet and mud dumping of the trailing suction hopper dredger can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of ship dynamic positioning, and in particular relates to a positioning control method for a fan-shaped bow spray of a trailing suction dredger. Background technique [0002] At present, the positioning control of the fan-shaped bow spraying of the trailing suction dredger is one of the important modes of the dredging operation of the trailing suction dredger. The automatic control of the dynamic positioning system can greatly improve the quality and efficiency of spraying and throwing mud on the bow of the trailing suction dredger , it will involve the thrust distribution of the trailing suction dredger, the thrust model after the bow spray, the power management mode and the control process of the bow spray positioning and so on. [0003] As a special engineering ship - when spraying and unloading mud by the bow of the trailing suction dredger, the trailing suction dredger is required to perform fan-shaped ...

Claims

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Application Information

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IPC IPC(8): B63H25/46G05D1/02
Inventor 顾明丁树友田俊峰袁伟俞孟蕻李军戴群王健刘长云杨立楠
Owner CCCC TIANJIN DREDGING
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