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Ship

A technology for ships and hulls, which can be used in ferries, hulls, passenger ships, etc., and can solve problems such as the limitation of the total length of ships

Active Publication Date: 2017-08-29
MITSUBISHI SHIPBUILDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall length of the ship is limited depending on conditions such as quay equipment
Therefore, there is a limit to the extension of the waterline length of the ship

Method used

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Examples

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Embodiment Construction

[0049]Next, a ship according to one embodiment of the present invention will be described based on the drawings.

[0050] figure 1 It is a side view which shows the overall structure of the ship which concerns on embodiment of this invention. figure 2 yes figure 1 A close-up view of the ship's bow.

[0051] The ship 1 of this embodiment is a ship with a relatively fast Froude number (Froude number) of about 0.25 to 0.38. The ship 1 is, for example, a passenger ship, a ferry ship capable of carrying vehicles, a passenger ship capable of carrying cargo, a RORO ship (Roll-on / Roll-off ship: roll-on-roll-off ship), a container ship, and a dry cargo ship such as a car carrier. "Passenger ship" may also include a "survey ship" conducting oceanographic surveys. Passenger ships and cargo ships are classified as relatively thin ships with a square coefficient Cb of 0.6 or less.

[0052] Such as figure 1 As shown, the hull 2 ​​of the ship 1 is provided with a propeller 5 and a rud...

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Abstract

A ship (1) has a Froude number of 0.25 to 0.38 and is provided with: a bow bulb (7) that is disposed below the full load waterline and of which an upper end portion is disposed on the lightest load waterline or thereabove; and a stem (8) that has a front edge portion (8a) that extends vertically upward from a front end portion (7a) of the bow bulb (7).

Description

technical field [0001] The present invention relates to ships. [0002] this application claims priority based on Japanese Patent Application No. 2015-004521 for which it applied to Japan on January 13, 2015, and uses the content here. Background technique [0003] In order to improve the propulsion performance of a ship, there are methods of reducing hull resistance and methods of improving propulsion efficiency. In particular, the reduction of hull resistance greatly contributes to the improvement of propulsion performance. [0004] The total resistance of a ship can be roughly classified into two resistance components: frictional resistance and residual resistance. In addition, residual resistance can be classified into wave resistance and viscous resistance. For reduction of wave resistance, there is known a technique of improving bow shape. [0005] As a bow shape for reducing the above-mentioned wave-making resistance, a bulbous bow is mentioned, for example. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B1/06
CPCB63B1/063B63B35/54B63B2001/066B63B2035/004Y02T70/10B63B1/06B63B1/40
Inventor 松本大辅首藤雄太
Owner MITSUBISHI SHIPBUILDING CO LTD
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