Ship

A ship and hull technology, applied in the direction of hull, ship construction, ships, etc., to achieve the effects of improving rapidity, improving resistance performance, good flow field and pressure distribution

Inactive Publication Date: 2015-09-09
CIMC SHIP OCEAN ENG DESIGN & RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Usually, the ship design is often optimized only for the speed under NCR (commonly used output power), so it often has better resistance performance in the high-speed stage, but for a wider range of speed, especially in the low-speed stage, it is necessary to It is not easy to satisfy each speed with good resistance performance

Method used

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Embodiment Construction

[0014] The present invention is based on the following reference coordinate system when describing dimensions:

[0015] In the X direction, along the length of the ship, it is divided into 20 intervals according to the length of the vertical lines, that is, 20 stations, numbered sequentially from the stern to the bow, the stern perpendicular is 0 station, and the bow perpendicular is 20 stations. If the length between lines is LPP, the length of each station leader is: LPP / 20. In places where the line shape changes rapidly at the bow and stern, add 0.5 or even 0.25 stations. If the range exceeds 20 stations, increase in order, then the distance of 20.5 stations The formula for calculating the length of the stern perpendicular is: LPP+0.5*(LPP / 20);

[0016] Y direction: along the ship's width direction, with the centerline of the ship as 0 point, the starboard side as positive, and the hull is symmetrical left and right;

[0017] Z direction: along the draft direction, take th...

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Abstract

The invention relates to a ship, which comprises a ship body and a bulbous bow positioned under a bow part of the ship body, wherein the distance between the highest part of the upper part of the bulbous bow and a base line is between 12.25m and 12.75m; at the 20-th station of the ship body, the distance between the bottom of the bulbous bow and the base line is between 1600mm and 2100mm; at the height of a 6m water line of the 20-th station of the ship body, the distance between the outer edge of the bulbous bow and the center line is between 2550mm and 3050mm; at the 20.5-th station of the ship body, the distance between the bottom of the bulbous bow and the base line is between 5000mm and 5500mm; and at the height of a 10m water line of the 20.5-th station of the ship body, the distance between the outer edge of the bulbous bow and the center line is between 1600mm and 2100mm. The ship has the advantages that the flow field and pressure distribution around the ship body is changed through the change of the bulbous bow, so that the lower effective power can be realized at any navigational speed of the ship, and the goal of saving fuel is achieved.

Description

technical field [0001] The invention relates to the field of ship design, in particular to the bulbous bow structure of the bow of the ship. Background technique [0002] The draft of a ship refers to the depth to which the ship is submerged in water, which varies according to the design of the ship. The size of the draft depends not only on the weight of the ship and everything on board such as cargo, ballast, fuel and spare parts, but also on the density of the water in which the ship is standing. The draft of a ship can be determined by reading the water gauges marked on the bow and stern of the ship. The draft of a ship is the design draft and structural draft. The design draft of a ship refers to the corresponding draft when the ship is fully loaded in the design state. The structural draft of a ship refers to the maximum draft that the hull structure can bear. Usually, the structural draft is higher than the design draft. High, to ensure that even if the ship is heav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B1/06
Inventor 胡安康蒋玮沈晓明尹逊滨余建伟谭美公朴
Owner CIMC SHIP OCEAN ENG DESIGN & RES INST
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