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Self-adaptive deformation ship bulbous bow and deformation method thereof

A bulbous bow, self-adaptive technology, applied in the direction of the hull, hull bow, hull parts, etc., can solve problems such as single bulbous bow structure, inability to adapt to complex and changeable navigation environments, and affect ship navigation efficiency. The effect of sailing efficiency

Active Publication Date: 2021-09-28
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, it is necessary to provide an adaptive deformation ship bulbous bow and its deformation method to solve the problem that the structure of the bulbous bow in the prior art is single and cannot adapt to the complex and changeable navigation environment, thus affecting the navigation efficiency of the ship. The problem

Method used

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  • Self-adaptive deformation ship bulbous bow and deformation method thereof
  • Self-adaptive deformation ship bulbous bow and deformation method thereof
  • Self-adaptive deformation ship bulbous bow and deformation method thereof

Examples

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Embodiment 1

[0024] see figure 1 and figure 2 , the present invention provides an adaptively deformable bulbous bow of a ship, comprising at least two transverse structures 1, telescopic components 2 and flexible skins 3, at least two transverse structures 1 are arranged in sequence along the forward direction of the hull, each The transverse structure 1 includes a support rod 11, an annular skeleton 12 and a first driving member 13, and the two ends of the support rod 11 are respectively connected to two opposite inner walls of the annular skeleton 12, and the annular skeleton 12 has two Two driving ends 121, the two driving ends 121 are respectively located on both sides of the support rod 11, the first driving member 13 drives the driving end 121 to approach or move away from the support rod 11, the telescopic assembly 2 The two ends of the flexible skin 3 are respectively hinged to the corresponding sides of the two adjacent annular frameworks 12 , and the flexible skin 3 is slidably...

Embodiment 2

[0042] This embodiment provides a method for deforming the bulbous bow of a ship based on the above-mentioned adaptive deformation, see Figure 4 , which specifically include:

[0043] S101 Acquiring real-time navigational variables when the ship is sailing, wherein the navigational variables include the speed of the ship, the draft of the hull, the wave height encountered by the wave variable, and the wavelength encountered by the wave variable.

[0044] It should be noted that the wave parameters (wave variable encounter wave height and wave variable encounter wavelength) are wave parameters of the main frequency wave of the hull encountering waves.

[0045] Wherein, in this embodiment, the real-time speed Vr is 24kn, the real-time hull draft is 10.8m, the real-time wave variable encounter wave height Hr is 1m, and the real-time wave variable encounter wavelength is 230m.

[0046] S102 Establishing sample points for navigation variables and shape variables by means of desig...

Embodiment 3

[0063] This embodiment provides a method for deforming the bulbous bow of a ship based on the above adaptive deformation, which specifically includes:

[0064] S201. Obtain real-time navigation variables when the ship is sailing, wherein the navigation variables include speed, hull draft, wave height encountered by wave variables, and wavelength encountered by wave variables.

[0065] It should be noted that the wave parameters (wave variable encounter wave height and wave variable encounter wavelength) are wave parameters of the main frequency wave of the hull encountering waves.

[0066] Wherein, in this embodiment, the real-time speed Vr is 24kn, the real-time hull draft is 10.8m, the real-time wave variable encounter wave height Hr is 1m, and the real-time wave variable encounter wavelength is 230m.

[0067] S202. According to the real-time navigation variable as a constraint condition, the shape variable as a design variable, and the minimum average resistance as the targ...

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Abstract

The invention relates to a self-adaptive deformation ship bulbous bow and a deformation method thereof. The self-adaptive deformation ship bulbous bow comprises at least two cross section structures, a telescopic assembly and a flexible skin, the at least two cross section structures are sequentially arranged in the advancing direction of a ship body, each cross section structure comprises a supporting rod, an annular framework and a first driving part, the two ends of each supporting rod are connected to the two opposite inner walls of the corresponding annular framework, the annular framework is each provided with two driving ends located on the two sides of the supporting rod, the first driving part drive the driving ends to be close to or away from the supporting rod, the two ends of the telescopic assembly are hinged to the corresponding sides of the two adjacent annular frameworks, and the outer surfaces of the multiple adjacent cross section structures are wrapped with the flexible skin in a sliding mode. According to the deformable bulbous bow, the cross section structure and the telescopic assembly serve as a main body frame of the deformable bulbous bow, when a ship body encounters a complex and changeable sea condition environment in the sailing process, the cross section structure and the telescopic assembly can flexibly change the appearance of the bulbous bow through stretching and retracting, the deformable bulbous bow better adapts to the complex and changeable sea condition, and the sailing resistance of the whole route segment is reduced.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to an adaptively deformed bulbous bow of a ship and a deformation method thereof. Background technique [0002] As a common drag-reducing structure, the bulbous bow is an important part of the hull of many medium and high-speed ships, but the shape of the bulbous bow is often designed according to the ship's design speed or wind and wave conditions, and its profile is determined after the design is completed down. However, the sea conditions encountered in the actual navigation of the ship are often varied, and the fixed bulbous bow cannot adapt to a variety of complex sea conditions. In actual navigation, the bulbous bow increases the wet surface area of ​​the ship under some sea conditions. , so that the resistance of navigation increases, and the resistance of the ship is not effectively reduced, which affects the navigation efficiency of the ship. Contents of the invention [...

Claims

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Application Information

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IPC IPC(8): B63B3/46
CPCB63B3/46
Inventor 刘祖源吕俊
Owner WUHAN UNIV OF TECH
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