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Ship

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

Active Publication Date: 2015-09-09
CIMC SHIP OCEAN ENG DESIGN & RES INST +1
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  • 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 width of the ship, with the midline as the zero point and the starboard side as positive, the hull is symmetrical left and right.

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

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Abstract

The invention discloses a ship. The ship comprises a ship body and a bulbous bow, wherein the bulbous bow is positioned under the bow part of the ship body, and the highest position of the upper part of the bulbous bow is 11.95-12.45m away from a baseline; at the 20th station of the ship body, the bottom of the bulbous bow is 750-1250mm away from the baseline; at the height of the 6m waterline at the 20th station of the ship body, the outer edge of the bulbous bow is 3100-3600mm away from a central line; at the 20.5th station of the ship body, the bottom of the bulbous bow is 4550-5050mm away from the baseline; at the height of the 10m waterline at the 20th station of the ship body, the outer edge of the bulbous bow is 1350-1850mm away from the central line. According to the ship, flow fields and pressure distribution, which is around the ship body, is changed by changing the bulbous bow, so that the ship can have lower effective power at any navigational speed, and the purpose of saving fuel oil 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 胡安康沈晓明尹逊滨蒋玮余建伟谭美公朴
Owner CIMC SHIP OCEAN ENG DESIGN & RES INST
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