CN113665728A - Bionic drag reduction method for underwater vehicle and water surface ship - Google Patents
Bionic drag reduction method for underwater vehicle and water surface ship Download PDFInfo
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- CN113665728A CN113665728A CN202111072612.8A CN202111072612A CN113665728A CN 113665728 A CN113665728 A CN 113665728A CN 202111072612 A CN202111072612 A CN 202111072612A CN 113665728 A CN113665728 A CN 113665728A
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- bionic
- underwater vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/40—Other means for varying the inherent hydrodynamic characteristics of hulls by diminishing wave resistance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
- B63B2001/345—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction by ejecting friction reducing solids or liquids, e.g. polymers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Artificial Fish Reefs (AREA)
Abstract
The invention discloses a bionic drag reduction method for an underwater vehicle and a water surface ship, which relates to the technical field of drag reduction methods and comprises a bionic outer skin structure, the water surface ship, the underwater vehicle, the water surface ship and the underwater vehicle, wherein the bionic outer skin structure comprises a bionic groove, a bionic mucus hole and a flexible soft material, the surface of the bionic outer skin structure is uniformly provided with the bionic groove and the bionic mucus hole, the outer surface of the bionic outer skin structure is provided with the flexible soft material, and the outer surface of the flexible soft material is detachably connected with the water immersion surfaces of the water surface ship and the underwater vehicle. The bionic groove changes the flow field structure of water flow, resistance reduction of an underwater vehicle and a water surface ship is realized, the resistance reduction effect is improved in the process, the frictional resistance of the surface is reduced, and the bionic groove has the advantages of simple structure, small size, easiness in operation and the like, and is high in adaptation degree with the underwater vehicle.
Description
Technical Field
The invention relates to the technical field of drag reduction methods, in particular to a bionic drag reduction method for an underwater vehicle and a water surface ship.
Background
Surface drag reduction performance is one of the important indicators for underwater vehicles and surface ships. In order to improve the concealment and navigation efficiency of underwater vehicles and surface ships, the surface resistance of the underwater vehicles and the surface ships should be reduced as much as possible. At present, the design of drag reduction of underwater vehicles and water surface ships in China has a plurality of defects.
The following problems exist in the prior art:
patent CN109611419A proposes a metal underwater bionic air film-based drag reduction surface, a preparation method and application thereof, wherein drag reduction is carried out through a micro-pit-shaped microstructure on the metal surface, but the drag reduction effect is poor; patent CN109699600A proposes an underwater drag reduction bionic nano structure, which designs a tapered structure to reduce drag by simulating a U-shaped structure on the surface of a dolphin, but is difficult to apply to an underwater vehicle; patent CN112644637A proposes an unmanned underwater vehicle motion drag reduction hull, which utilizes seawater in the hull interlayer to reduce drag, but the drag reduction effect is not good.
Disclosure of Invention
The invention provides a bionic drag reduction method for an underwater vehicle and a water surface ship, which has the function of improving drag reduction effect and solves the problem of poor drag reduction effect of the traditional drag reduction method; the other purpose is to solve the problem that the traditional bionic structure is difficult to apply to the surface of an underwater vehicle, so that the effect of improving the applicability of the drag reduction method and the underwater vehicle is achieved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a bionic drag reduction method for an underwater vehicle and a water surface ship is composed of a bionic outer skin structure, and the submerged surfaces of the water surface ship, the underwater vehicle, the water surface ship and the underwater vehicle.
The bionic outer skin structure comprises bionic grooves, bionic viscous liquid holes and flexible soft materials, the bionic grooves and the bionic viscous liquid holes are uniformly formed in the surface of the bionic outer skin structure, and the flexible soft materials are arranged on the outer surface of the bionic outer skin structure.
The outer surface of the flexible soft material is detachably connected with the water immersion surfaces of the surface ship and the underwater vehicle, and bionic mucus is loaded in the flexible soft material.
The technical scheme of the invention is further improved as follows: the shape of the bionic groove inner cavity simulates a micro structure on the surface of a shark, and a plurality of bionic grooves are arranged on the outer surface of the bionic outer skin structure.
The technical scheme of the invention is further improved as follows: the bionic grooves can be combined with released bionic mucus, so that the flow field structure close to the wall surface can be changed in the driving process of the surface ship and the underwater vehicle, and the drag reduction of the surface ship and the underwater vehicle is realized.
The technical scheme of the invention is further improved as follows: the flexible soft material has a certain elastic modulus, and can be deformed by the extrusion acting force of water flow or artificial control pressure in the sailing process of surface ships and underwater vehicles.
The technical scheme of the invention is further improved as follows: the bionic mucus adopts active mucus secreted by bionic marine fishes, and can be discharged through bionic mucus holes in the navigation process of water surface ships and underwater vehicles.
The technical scheme of the invention is further improved as follows: in the process of discharging the bionic mucus through the bionic mucus holes, the bionic mucus can move along with the movement of the surface ship and the underwater vehicle to form a mucus interface on the outer surfaces of the surface ship and the underwater vehicle, so that water is not directly contacted with the water-immersed surfaces of the surface ship and the underwater vehicle, and the frictional resistance of the surfaces is reduced.
The technical scheme of the invention is further improved as follows: the bionic mucus adopts environment-friendly materials such as artificially synthesized hydrogel, high molecular polymer and the like as raw materials, and has the performance of isolating water from the surfaces of surface ships and underwater vehicles.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides a bionic drag reduction method for an underwater vehicle and a water surface ship.
2. The invention provides a bionic drag reduction method for an underwater vehicle and a water surface ship, which is characterized in that holes for discharging bionic mucus are processed on the outer surface through active mucus secreted by bionic marine fishes, and the discharged bionic mucus moves along with the underwater vehicle and the water surface ship to form a layer of mucus interface on the outer surfaces of the underwater vehicle and the water surface ship, so that water is not directly contacted with the surfaces of the underwater vehicle and the water surface ship, and the frictional resistance of the surface is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the outer skin structure of the present invention in connection with a cross-sectional configuration of an underwater vehicle surface;
fig. 3 is a schematic view of the connection structure of the outer skin structure and the underwater vehicle of the present invention.
In the figure: 1. an outer skin structure; 11. a bionic groove; 12. bionic mucus hole; 13. a flexible soft material; 2. surface vessels and underwater vehicles; 21. submerged surfaces of surface vessels and underwater vehicles.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1-3, the invention provides a bionic drag reduction method for an underwater vehicle and a water surface ship, the bionic drag reduction method is composed of a bionic outer skin structure 1, the water surface ship, the underwater vehicle 2, and immersion surfaces 21 of the water surface ship and the underwater vehicle, the bionic outer skin structure 1 comprises a bionic groove 11, a bionic mucus hole 12 and a flexible soft material 13, the surface of the bionic outer skin structure 1 is uniformly provided with the bionic groove 11 and the bionic mucus hole 12, the outer surface of the bionic outer skin structure 1 is provided with the flexible soft material 13, the outer surface of the flexible soft material 13 is detachably connected with the immersion surfaces 21 of the water surface ship and the underwater vehicle, and the bionic mucus is loaded inside the flexible soft material 13.
The bionic outer skin structure 1 is not only suitable for the lower parts of the surface ship and the underwater vehicle 2, but also can be distributed around the revolution parts of the surface ship and the underwater vehicle 2 for use.
The shape of the inner cavity of the bionic groove 11 simulates a micro-structure on the surface of a shark or other marine fishes with excellent swimming performance, a plurality of bionic grooves 11 are arranged on the outer surface of the bionic outer skin structure 1, the shark surface is full of a shield scale, rib-shaped protrusions on the shield scale enable the shark skin to be a groove-shaped non-smooth surface, and the groove structure has a good resistance reduction effect.
The bionic grooves 11 can adopt the surface structures of organisms such as bionic fish scales, shark scull and the like, and can also adopt artificially designed non-smooth surface structures, and the aim of reducing resistance is realized by changing flow fields near the outer surfaces of surface ships and underwater vehicles 2.
Furthermore, the bionic groove 11 can change the flow field structure near the wall surface in the running process of the water surface ship and the underwater vehicle 2, so that the drag reduction of the water surface ship and the underwater vehicle 2 is realized, the bionic groove 11 has a certain guiding function when meeting water flow, and the drag reduction effect of the underwater vehicle and the water surface ship 2 is improved in the process.
The flexible soft material 13 has a certain elastic modulus, and can be deformed by the extrusion acting force of water flow or artificial control pressure in the navigation process of the surface ship and the underwater vehicle 2.
The bionic mucus adopts active mucus secreted by bionic marine fishes, and can be discharged through the bionic mucus holes 12 in the navigation process of the water surface ship and the underwater vehicle 2.
In the process of discharging the bionic mucus through the bionic mucus holes 12, the bionic mucus can be distributed on the outer surfaces of the surface ship and the underwater vehicle 2 along with the movement of the surface ship and the underwater vehicle 2 to form a mucus interface, so that water is not directly contacted with the surfaces of the surface ship and the underwater vehicle 2, the frictional resistance of the surfaces is reduced, and the structure has the advantages of simple structure, small size, easiness in operation and the like, and is higher in adaptation degree with the underwater vehicle 2.
The bionic mucus adopts environment-friendly materials such as artificially synthesized hydrogel, high molecular polymer and the like as raw materials, has the performance of isolating water from the surfaces of a surface ship and an underwater vehicle 2, and has the effect of being smoothly attached to the surface of the underwater vehicle as the bionic product of mucus secreted by fish as well as the effect of being smoothly attached to the surface of the underwater vehicle.
Meanwhile, artificially synthesized organic materials such as hyaluronic acid and the like can be adopted, and the purpose of reducing resistance is realized by forming an interface on the surface of the underwater vehicle to isolate seawater and the submerged surface 21 of the surface ship and the underwater vehicle.
The bionic drag reduction method for the underwater vehicle and the water surface ship has the advantages that:
according to the invention, the bionic groove is processed on the outer surface by simulating the micro structure of the surface of the shark or other marine fishes with excellent swimming performance, and has a certain guiding function in the running process of the underwater vehicle and the surface ship, so that the flow field structure close to the wall surface can be changed, the resistance reduction of the underwater vehicle and the surface ship is realized, and the resistance reduction effect is improved in the process.
According to the bionic drag reduction method, the holes for discharging the bionic mucus are processed on the outer surface through the active mucus secreted by the bionic marine fishes, and the discharged bionic mucus moves along with the underwater vehicle and the water surface ship and is distributed on the outer surfaces of the underwater vehicle and the water surface ship to form a mucus interface, so that the water is not directly contacted with the surfaces of the underwater vehicle and the water surface ship, the frictional resistance of the surfaces is reduced, the structure has the advantages of simple structure, small size, easiness in operation and the like, the adaptation degree with the underwater vehicle is high, and the practicability of the bionic drag reduction method is further improved.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (7)
1. A bionic drag reduction method for underwater vehicles and water surface ships is characterized in that: the bionic drag reduction method is characterized by comprising a bionic outer skin structure (1), a surface ship and an underwater vehicle (2) and a water immersion surface (21) of the surface ship and the underwater vehicle;
the bionic outer skin structure (1) comprises bionic grooves (11), bionic viscous liquid holes (12) and flexible soft materials (13), the bionic grooves (11) and the bionic viscous liquid holes (12) are uniformly formed in the surface of the bionic outer skin structure (1), and the flexible soft materials (13) are arranged on the outer surface of the bionic outer skin structure (1);
the outer surface of the flexible soft material (13) is detachably connected with the water immersion surfaces (21) of the surface ships and underwater vehicles, and bionic mucus is loaded inside the flexible soft material (13).
2. The biomimetic drag reduction method for underwater vehicles and surface vessels according to claim 1, wherein: the shape of the inner cavity of the bionic groove (11) simulates a micro structure on the surface of a shark, and the outer surface of the bionic outer skin structure (1) is provided with a plurality of bionic grooves (11) in an arrangement shape.
3. The biomimetic drag reduction method for underwater vehicles and surface vessels according to claim 2, wherein: the bionic grooves (11) can be combined with released bionic mucus, so that the flow field structure close to the wall surface can be changed in the driving process of the surface ship and the underwater vehicle (2), and drag reduction of the surface ship and the underwater vehicle (2) is realized.
4. The biomimetic drag reduction method for underwater vehicles and surface vessels according to claim 1, wherein: the flexible soft material (13) has a certain elastic modulus, and can be deformed by the extrusion acting force of water flow or artificial control pressure in the sailing process of the surface ship and the underwater vehicle (2).
5. The biomimetic drag reduction method for underwater vehicles and surface vessels according to claim 1, wherein: the bionic mucus adopts active mucus secreted by bionic marine fishes, and can be discharged through the bionic mucus holes (12) in the navigation process of the surface ships and underwater vehicles (2).
6. The biomimetic drag reduction method for underwater vehicles and surface vessels according to claim 5, wherein: in the process of discharging the bionic mucus through the bionic mucus holes (12), the bionic mucus can be distributed on the outer surfaces of the surface ship and the underwater vehicle (2) to form a mucus interface along with the movement of the surface ship and the underwater vehicle (2), so that water is not directly contacted with the surfaces of the surface ship and the underwater vehicle (2), and the frictional resistance of the surfaces is reduced.
7. The biomimetic drag reduction method for underwater vehicles and surface vessels according to claim 6, wherein: the bionic mucus adopts environment-friendly materials such as artificially synthesized hydrogel, high molecular polymer and the like as raw materials, and has the performance of isolating water from the surfaces of water surface ships and underwater vehicles (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072612.8A CN113665728B (en) | 2021-09-14 | 2021-09-14 | Bionic drag reduction method for underwater vehicle and water-surface ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111072612.8A CN113665728B (en) | 2021-09-14 | 2021-09-14 | Bionic drag reduction method for underwater vehicle and water-surface ship |
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| CN113665728A true CN113665728A (en) | 2021-11-19 |
| CN113665728B CN113665728B (en) | 2023-05-05 |
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Cited By (4)
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| CN114132428A (en) * | 2021-11-29 | 2022-03-04 | 江苏科技大学 | Composite drag reduction method for underwater vehicle |
| CN114620182A (en) * | 2022-02-17 | 2022-06-14 | 中国船舶科学研究中心 | Composite surface layer for reducing frictional resistance in water and use method thereof |
| CN114715328A (en) * | 2022-04-02 | 2022-07-08 | 中国船舶重工集团公司第七二五研究所 | Surface drag reduction structure material |
| CN114932973A (en) * | 2022-06-01 | 2022-08-23 | 吉林大学 | Variable groove device of underwater vehicle |
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| CN114932973A (en) * | 2022-06-01 | 2022-08-23 | 吉林大学 | Variable groove device of underwater vehicle |
| CN114932973B (en) * | 2022-06-01 | 2024-01-30 | 吉林大学 | Variable groove device of underwater vehicle |
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|---|---|
| CN113665728B (en) | 2023-05-05 |
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