Three-point mooring positioning system and analysis method for ship positioning in shallow water

Abstract

The invention discloses a three-point anchor mooring positioning system for ship positioning operation in shallow water and an analysis method. The three-point anchor mooring positioning system for ship positioning operation in the shallow water comprises a first anchor mooring component, a second anchor mooring component and a third anchor mooring component; the first anchor mooring component andthe second anchor mooring component are both arranged on a ship forecastle deck; the third anchor mooring component is arranged on a ship aft deck; the first anchor mooring component comprises a first positioning anchor, a first anchor chain and a first anchor mooring winch; the second anchor mooring component comprises a second positioning anchor, a second anchor chain and a second anchor mooring winch; the third anchor mooring component comprises a third positioning anchor, a fairlead, a steel wire rope and a mooring winch; the first anchor mooring component and the second anchor mooring component are correspondingly arranged on the two sides of the longitudinal line of a hull; and the fairlead of the third anchor mooring component is arranged at the aft part of the ship. The three-point anchor mooring positioning system for ship positioning operation in the shallow water has the advantages of low cost and higher economic efficiency; and the positioning analysis method gives consideration to the economic efficiency and the building cost in the using process and is more flexible and economic.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a three-point mooring positioning system and analysis method for ship positioning operations in shallow water areas. Background technique [0002] Most offshore engineering operation vessels need to use dynamic positioning systems or anchoring positioning systems for positioning operations under the operating conditions of ROV (remotely operated unmanned submersibles), pipeline laying, and drilling. [0003] If a dynamic positioning system is used for positioning operations, not only the cost is high, but also the fuel consumption during use is high and the cost is relatively high. [0004] If the mooring positioning system is used for operations, corresponding positioning winches and cable storage drums must be equipped in the design process, which requires a large space for the ship and high construction costs. [0005] However, in the Bohai Sea region, the water depth is mostly...

AI Technical Summary

Problems solved by technology

[0004] If the mooring positioning system is used for operations, corresponding positioning winches and cable storage drums must be equipped in the design process, which requires a large space for the ship and high construction costs

[0005] However, in the Bohai Sea area, the water depth is mostly shallow waters less than 20m, and the sea conditions are relatively mild. Whether the dynamic positioning system or the mooring positioning system is used, its economy is poor and the cost is high

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