Wave-breaking accessory and wave-breaking ship

Abstract

The present invention provides a wave-breaking accessory and a wave-breaking ship, which are attached to the front end of the hull of a ship to form a wave-breaking ship, the end of the wave-breaking accessory is recessed to form an attachment surface for attaching the front end of the hull, and the two sides thereof respectively form a first wave-breaking surface and a second wave-breaking surface, and the distance between the first wave-breaking surface and the second wave-breaking surface gradually decreases along the forward direction of the hull. The blade-shaped wave-breaking structure formed by the first wave-breaking surface and the second wave-breaking surface can break the water surface in advance, thereby reducing the impact resistance of waves for the hull; and by adding the wave-breaking accessory to the hull, not only the wave-breaking effect of the hull is improved, but also the underwater projection area of ​​the hull is increased to improve the maneuverability of the ship, and at the same time, the overall longitudinal length of the hull is increased on the water level of the hull, and the sailing resistance is reduced by increasing the longitudinal aspect ratio.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a wave-breaking accessory and a wave-breaking ship. Background Art

[0002] High-speed ships need to overcome navigation resistance to achieve speed indicators, which include sustained high speed and maximum speed indicators. In order to achieve these two high-speed indicators, it is necessary to use a high-power main engine and minimize the underwater projection area of ​​the ship to reduce resistance.

[0003] The above traditional methods of increasing ship speed bring about the following main problems:

[0004] High-speed ships are expensive. To achieve high speed requirements, high-speed ships usually need to be equipped with a more powerful main engine, which is a major part of the total ship cost, usually up to 30%, increasing the procurement cost of ship construction.

[0005] High-speed ships have poor economic efficiency. In order to achieve the maximum speed index, a high-power main engine that matches it is usually selected. However, high-speed ships usually operate at a continuous high speed or economic speed, resulting in excess power in the power system. Since they do not often operate in the matching power range, the main engine is not in the best operating state for a long time, which is prone to mechanical wear and tear, and high fuel consumption, making its economy worse than that of ships operating at low speeds.

[0006] Insufficient operability. Since drag reduction requires minimizing the forward projection area, high-speed ships have insufficient maneuverability and poor heading stability, which is not conducive to route maintenance and safe navigation.

[0007] Therefore, without making major changes to the high-speed ship model, an optimized appendage is urgently needed to solve the above-mentioned technical defects. Summary of the invention

[0008] The present invention provides a wave-breaking accessory and a wave-breaking vessel, which are used to solve the above-mentioned technical problems.

[0009] The present invention provides a wave-breaking attachment, which is attached to the front end of a hull of a ship. The end of the wave-breaking attachment is recessed to form an attachment surface for attaching the front end of the hull, and a first wave-breaking surface and a second wave-breaking surface are formed on both sides thereof, respectively. The distance between the first wave-breaking surface and the second wave-breaking surface gradually decreases along the forward direction of the hull.

[0010] Preferably, the first wave-breaking surface and the second wave-breaking surface are symmetrically arranged.

[0011] Preferably, the first wave-breaking surface and the second wave-breaking surface are both planes, or both are curved surfaces, or both are convex curved surfaces, or both are concave curved surfaces.

[0012] Preferably, the front end of the wave-breaking accessory has a third arc-shaped wave-breaking surface, and the first wave-breaking surface and the second wave-breaking surface are respectively smoothly transitionally connected to both sides of the third wave-breaking surface.

[0013] Preferably, the wave-breaking accessory comprises a wave-breaking portion and an attachment portion, both of which are V-shaped, the open end of the wave-breaking portion is sleeved on the attachment portion and its open ends are respectively connected to the open ends of the attachment portion, the front end of the wave-breaking portion forms the third wave-breaking surface, and the two sides thereof form the first wave-breaking surface and the second wave-breaking surface, and the attachment surface is formed on the side of the attachment portion facing away from the wave-breaking portion.

[0014] Preferably, the bottom widths of the V-shaped wave-breaking portion and the attachment portion gradually decrease and converge to form a bottom seal.

[0015] Preferably, the wave-breaking accessory further comprises a capping portion, the outer edge of which is sealingly connected to the upper edges of the wave-breaking portion and the attachment portion, and the wave-breaking portion, the attachment portion and the capping portion form a closed hollow cavity.

[0016] A wave-breaking vessel comprises a hull and the above-mentioned wave-breaking accessory, wherein the wave-breaking accessory is attached to the front end of the hull through an attachment surface, and its upper end is flush with the water level of the hull, and the first wave-breaking surface and the second wave-breaking surface are respectively smoothly transitionally connected to both sides of the hull.

[0017] Preferably, the tip of the blade portion is flush with the front end of the hull in the vertical direction.

[0018] Preferably, the third wave-breaking surface forms a wave-breaking blade, the blade line of which is consistent with the curvature line of the attached hull part.

[0019] The wave-breaking accessory and the wave-breaking ship described in the present invention utilize the principle of fluid mechanics to form a blade-shaped wave-breaking structure through a first wave-breaking surface and a second wave-breaking surface, thereby being able to break the water surface in advance and reduce the impact resistance of waves for the hull; and by adding the wave-breaking accessory to the hull, not only the wave-breaking effect of the hull is improved, but also the underwater side projection area of ​​the hull is increased to improve the maneuverability of the ship, while at the same time the overall longitudinal length of the hull is increased on the water level line of the hull, and the navigation resistance is reduced by increasing the longitudinal aspect ratio.

[0020] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1It is a structural schematic diagram of a wave-breaking attachment according to the present invention attached to the front end of a hull of a ship;

[0023] Figure 2 A top view of a wave-breaking attachment of the present invention attached to the front end of a hull of a ship and located above the waterline;

[0024] Figure 3 A cross-sectional view of a wave-breaking attachment of the present invention attached to the front end of a hull of a ship and located on the waterline;

[0025] Figure 4 A side view of a wave-breaking attachment according to the present invention;

[0026] Figure 5 It is a side sectional view of a wave-breaking accessory according to the present invention. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Example 1

[0029] The present invention provides a wave-breaking accessory, such as Figure 1 As shown, it is attached to the front end 2 of the hull of the ship, as shown in FIG. Figure 2 As shown, the end of the wave-breaking attachment 1 is recessed to form an attachment surface 101 for attaching the front end 2 of the hull, and the two sides thereof respectively form a first wave-breaking surface 102 and a second wave-breaking surface 103, and the distance between the first wave-breaking surface 102 and the second wave-breaking surface 103 gradually decreases along the forward direction of the hull. The shape and structure of the wave-breaking attachment 1 conform to the principles of fluid mechanics, and the wave-breaking attachment 1 can improve the wave-breaking effect of the hull, increase the longitudinal aspect ratio to reduce the sailing resistance, and increase the underwater side projection area to improve the ship's maneuverability.

[0030] The first wave-breaking surface 102 and the second wave-breaking surface 103 are symmetrically arranged. Preferably, the first wave-breaking surface 102 and the second wave-breaking surface 103 are both planes, or both are curved surfaces, or both are convex curved surfaces, or both are concave curved surfaces.

[0031] Further preferably, the front end of the wave-breaking accessory 1 has a third arc-shaped wave-breaking surface 104, and the first wave-breaking surface 102 and the second wave-breaking surface 103 are respectively smoothly connected to both sides of the third wave-breaking surface 104. Specifically, the radius of the third wave-breaking surface 104 is preferably 6-10 mm.

[0032] Specific as Figure 3 and Figure 5As shown, the wave-breaking accessory 1 includes a wave-breaking portion 11 and an attachment portion 12, both of which are V-shaped. The open end of the wave-breaking portion 11 is sheathed on the attachment portion 12 and its open ends are respectively connected to the open ends of the attachment portion 12, and the bottom widths of the V-shaped wave-breaking portion 11 and the attachment portion 12 gradually decrease and converge to form a bottom seal. The front end of the wave-breaking portion 11 forms the third wave-breaking surface 104, and the two sides thereof form the first wave-breaking surface 102 and the second wave-breaking surface 103. The attachment portion 12 forms the attachment surface 101 on the side away from the wave-breaking portion 11. Figure 5 As shown, the wave-breaking accessory 1 further includes a capping portion 13, the outer edge of which is sealed and connected to the upper edges of the wave-breaking portion 11 and the attachment portion 12, and forms a closed hollow cavity with the attachment portion 12 and the capping portion 13. The wave-breaking accessory 1 is made of high-hardness steel, and its rigidity can ensure the effect of withstanding the impact of wave-breaking at high speed.

[0033] The wave-breaking attachment 1 utilizes the blade-shaped wave-breaking structure formed by the first wave-breaking surface 102 and the second wave-breaking surface 103, so as to break the water surface in advance and reduce the impact resistance of waves for the hull.

[0034] Example 2

[0035] The present invention also provides a wave-breaking vessel, which comprises a hull and the wave-breaking accessory 1 described in Example 1, as shown in FIG. Figure 1 As shown, the attachment surface 101 of the wave-breaking attachment 1 is attached to the front end 2 of the hull, and its upper end is flush with the water level of the hull. The first wave-breaking surface 102 and the second wave-breaking surface 103 are respectively smoothly connected to the two sides of the hull; Figure 4 As shown, the third wave-breaking surface 104 forms a wave-breaking blade, and its blade line 104a is consistent with the curvature line of the attached hull part.

[0036] In addition, through experimental tests, when the tip of the blade is flush with the front end 2 of the hull in the vertical direction, the resistance of the hull is minimal. The specific experimental data are as follows:

[0037] When the breaking wave attachment 1 exceeds the ship length by 2%, the total resistance is reduced by 11%;

[0038] When the wave breaking attachment 1 is equal to the ship length, the total resistance is reduced by 15%;

[0039] When the wave breaking attachment 1 is shorter than 2% of the ship length, the total resistance is reduced by 9%.

[0040] By adding the wave-breaking attachment 1 to the hull, not only the wave-breaking effect of the hull is improved, but also the underwater side projection area of ​​the hull is increased to improve the ship's maneuverability. At the same time, the overall longitudinal length of the hull is increased on the water level of the hull, and the navigation resistance is reduced by increasing the longitudinal aspect ratio.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A wave-breaking attachment, which is attached to the front end of the hull of a ship, characterized in that: The end of the wave-breaking attachment is recessed to form an attachment surface for attaching to the front end of the hull, and two sides of the attachment form a first wave-breaking surface and a second wave-breaking surface respectively, and the distance between the first wave-breaking surface and the second wave-breaking surface gradually decreases along the forward direction of the hull; The wave-breaking attachment is attached to the front end of the hull through an attachment surface, and its upper end is flush with the water level of the hull, and the first wave-breaking surface and the second wave-breaking surface are respectively smoothly connected to the two sides of the hull; The first wave-breaking surface and the second wave-breaking surface form a blade, and the tip of the blade is flush with the front end of the hull in a vertical direction.

2. The wave-breaking attachment according to claim 1, characterized in that: The first wave-breaking surface and the second wave-breaking surface are arranged symmetrically.

3. The wave-breaking attachment according to claim 1, characterized in that: The first wave-breaking surface and the second wave-breaking surface are both planes.

4. The wave-breaking attachment according to claim 1, characterized in that: The first wave-breaking surface and the second wave-breaking surface are both curved surfaces.

5. The wave-breaking attachment according to claim 1, characterized in that: The front end of the wave-breaking accessory has a third arc-shaped wave-breaking surface, and the first wave-breaking surface and the second wave-breaking surface are respectively connected to two sides of the third wave-breaking surface in a smooth transition.

6. The wave-breaking attachment according to claim 5, characterized in that: The wave-breaking accessory includes a wave-breaking portion and an attachment portion, both of which are V-shaped. The open end of the wave-breaking portion is sleeved on the attachment portion and its open ends are respectively connected to the open ends of the attachment portion. The front end of the wave-breaking portion forms the third wave-breaking surface, and the two sides thereof form the first wave-breaking surface and the second wave-breaking surface, and the attachment surface is formed on the side of the attachment portion away from the wave-breaking portion.

7. The wave-breaking attachment according to claim 6, characterized in that: The bottom widths of the wave-breaking portion and the attachment portion gradually decrease and converge to form a bottom seal.

8. The wave-breaking attachment according to claim 6, characterized in that: The wave-breaking accessory also includes a sealing top portion, the outer edge of which is sealed and connected to the upper edges of the wave-breaking portion and the attachment portion, and the wave-breaking portion, the attachment portion and the sealing top portion form a closed hollow cavity.

9. The wave-breaking attachment according to claim 5, characterized in that: The third wave-breaking surface forms a wave-breaking blade, the blade line of which is consistent with the curvature line of the attached hull part.

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