CN217074704U - Hydrofoil - Google Patents
Hydrofoil Download PDFInfo
- Publication number
- CN217074704U CN217074704U CN202220999312.8U CN202220999312U CN217074704U CN 217074704 U CN217074704 U CN 217074704U CN 202220999312 U CN202220999312 U CN 202220999312U CN 217074704 U CN217074704 U CN 217074704U
- Authority
- CN
- China
- Prior art keywords
- wing
- hydrofoil
- section wing
- length
- sections
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Images
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model provides a hydrofoil, it is complicated that it has solved current hydrofoil structure, poor stability's technical problem, hydrofoil formula structure as an organic whole, including intermediate part, connecting portion, two sections wings. Two sections of wings are respectively arranged at the left side and the right side of the middle part, and a connecting part is arranged at the middle rear part. The connecting part is connected with the surfboard or the ship body through the adapter. The two sections of wings are of combined wing type structures and comprise a middle section wing and a rear section wing which are connected through folded edges. The utility model discloses an appearance and structural configuration combine the hem design, utilize the hydrofoil to cut the area change of drawing the surface of water and the spoiler effect that the hem played to obtain better self-stability, but wide application in shipbuilding technical field.
Description
Technical Field
The utility model relates to a shipbuilding technical field, in particular to hydrofoil.
Background
The hydrofoil is equivalent to an underwater wing, and the cross section of the hydrofoil is the same as or similar to that of the wing, so that the hydrofoil generates upward lifting force in the underwater high-speed motion process, lifts a ship body or a sliding plate to a certain extent, reduces the underwater volume of the hydrofoil, and reduces the integral resistance of sailing in water. The water wings move in the water, and rising resistance can be generated by rising waves on the water surface; however, in order to reduce the resistance, the hydrofoil moves in the water close to the water surface, but the lift force generated by the hydrofoil is smaller as the hydrofoil is closer to the water surface, so that the interference of the height of the water surface and the change of the water flow direction on the lift force and the resistance of the hydrofoil must be considered.
The existing hydrofoil structure generally adopts a pointed wing shape, and the middle part or two ends of the hydrofoil structure are connected with a sliding plate or a ship body through a certain adapter piece; wherein, in the marine hydrofoil, because of the connection plates at two sides or the sharing of a plurality of groups of hydrofoils, a certain stability is ensured; however, in the movement of the skateboard, considering the weight, the volume and the speed competition requirements, a layout structure of connecting the middle parts of the single hydrofoils is generally adopted, so that the stability of the skateboard is lacked, if a winglet is added according to the design of the wing, the underwater turning is difficult, the turning radius is obviously increased, and the horizontal projection area is reduced and the lift force is reduced due to the influence of the weight and the volume.
Chinese patent CN214356551U discloses a hydrofoil structure, which comprises a mast, a main body, a front wing, and a rear wing; the front wing and the rear wing are respectively fixedly connected with the head end and the tail end of the main body; the upper end and the lower end of the mast are respectively connected and fixed with a surfboard and the main body; the front wing, the rear wing and the mast all comprise a hard outer shell and an internal structure arranged in the outer shell; the inner structure is mainly a hollow structure, and the outer shell corresponding to the inner structure has a structural thickness of 0.6-7 mm. Above-mentioned technical scheme simple structure improves holistic stability through the aileron that has increased vertical setting, but just so leads to the shared volume of structure to increase, is unfavorable for weight control on the one hand, and on the other hand has increased the resistance of aquatic navigation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses just for solve above-mentioned background art not enough, provide a simple structure, light and handy practical, the hydrofoil of multiplicable aquatic stability.
Therefore, the utility model provides a hydrofoil, the main body of which is an integrated structure and comprises an intermediate part, a connecting part and two sections of wings;
the left side and the right side of the middle part are respectively provided with the two sections of wings; the connecting part is arranged at the rear part of the middle part; the connecting part is provided with a connecting joint or a connecting interface and is connected with the surfboard or the ship body through the adapter;
the middle part is of a streamline structure, and the surfaces of the two ends are smoothly connected with the surfaces of the two sections of wings;
the two sections of wings are of combined wing type structures and comprise a middle section wing and a rear section wing, and the whole wing is of a pointed wing structure; the middle section wing and the rear section wing are connected through a folded edge; and at the joint of the folded edges, the horizontal position of the rear section wing is higher than that of the middle section wing.
Preferably, the midspan wing has a spanwise length (L) 1 ) And the length (L) of the rear section wing along the wingspan direction 2 ) The ratio of (A) is in the range of 3.4-3.5.
Preferably, the midspan wing has a spanwise length (L) 1 ) And the length (L) of the rear section wing along the wingspan direction 2 ) The ratio of (A) is in the range of 2.7-2.8.
Preferably, the midspan wing has a spanwise length (L) 1 ) And the length (L) of the rear section wing along the wingspan direction 2 ) The ratio of (A) is in the range of 2.0-2.1.
Preferably, the connection part of the folded edge, the middle section wing and the rear section wing is processed with a rounded corner.
Preferably, the length (L) of the folded edge in the span direction 3 ) And the length (L) of the rear section wing along the wingspan direction 2 ) The ratio of (A) is in the range of 0.05-0.075.
Preferably, the height (H) at the front edge of the folded edge 2 ) Height (H) at trailing edge 1 ) The ratio of (A) is in the range of 0.11-0.16.
Preferably, the connecting portion is provided on the axis of symmetry of the intermediate portion in the chord direction; the connecting part is of a hollow square pipe structure, the end part of the connecting part is provided with a connecting interface, and the connecting interface is spliced with the adaptor; and a fillet or cambered surface structure is processed at the joint of the connecting part and the middle part.
The utility model discloses there is following beneficial effect:
the utility model combines the design of the folding edge by the appearance and the structural layout, and utilizes the area change of the water surface cut by the hydrofoil and the spoiler function of the folding edge to obtain better self-stability;
furthermore, the angles of the two sections of wings can be designed separately, so that the lift force is changed to obtain better stability; through the size parameter association limit, different navigation performances can be obtained.
Drawings
FIG. 1 is a perspective view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a rear view of the present invention;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
the labels in the figure are: 1. connecting part, 2, middle part, 3, middle wing, 4 folded edge, and 5, rear wing.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special provision is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.
The embodiment provides a hydrofoil which is integrally of an integrated structure and mainly comprises a middle part 2, a connecting part 1 and two sections of hydrofoils as shown in figures 1-3.
The middle part 2 is also of an airfoil structure, namely, the cross section is in a vertically asymmetric convex edge shuttle shape. Two sections of wings are respectively arranged at the left side and the right side of the middle part 2. The rear part of the middle part 2 is provided with a connecting part 1; preferably, the connecting portion 1 is disposed on the symmetry axis of the middle portion along the chord direction, the main body of the connecting portion 1 is a hollow square tube structure, and the square structure at the end portion is used as a connecting interface and is connected with the surfboard through the adapter. In order to obtain smaller fluid resistance, as shown in the figure, the connecting part 1 and the middle part 2 are designed to be processed with a rounded corner or a cambered surface structure, so that the whole body has a streamline appearance.
The middle part 2 is also of a streamline structure as a whole, and the two end surfaces are smoothly connected with the surfaces of the two sections of wings.
The two sections of wings are of a combined wing type structure and comprise a middle section wing 3 and a rear section wing 5, and the overall overlooking projection of the two sections of wings is designed to be of a pointed wing structure, as shown in fig. 2. In order to have turbulence capacity and adjust the lift force in sections, the middle section wing 3 is connected with the rear section wing 5 through the folded edge 4, so that the horizontal position of the rear section wing 5 at the joint is higher than that of the middle section wing 3, the attack angle of the middle section wing 3 can be increased, and the lift force is improved.
In order to obtain different sailing performances, design adjustment and test verification are combined, under different requirements, the lengths of two sections of wings are not monotonously increased or decreased, but the ratio between the sections is adjusted to be most suitable in a range, and meanwhile, the front-rear edge fall of the folded edge 4 needs to be adjusted.
Preferably, under the requirement of racing, the length L of the middle section wing along the wingspan direction is designed by preferentially considering the influence of the lifting force and the resistance 1 Length L of the rear wing in the wingspan direction 2 The ratio of (A) is in the range of 3.4-3.5.
Preferably, the length L of the middle section wing along the wingspan direction is designed under the consideration of the combined influence of the lift force, the drag force and the stability under the balance requirement 1 And the length L of the rear section wing along the wingspan direction 2 The ratio of (A) is in the range of 2.7-2.8.
Preferably, the length L of the middle section wing along the wingspan direction is designed in consideration of integral stability under the requirement of easy operation 1 Length L of the rear wing in the wingspan direction 2 The ratio of (A) is in the range of 2.0-2.1.
The design parameter range can be selected according to actual requirements, and the embodiment is not particularly limited.
Further, as shown in fig. 4, in order to maintain the streamline appearance, a rounded corner is processed at the connection part of the folded edge 4, the middle section wing 3 and the rear section wing 5, so that smooth transition is realized. And the length L of the design flange 4 along the wingspan direction 3 Length L of the rear wing in the wingspan direction 2 Ratio of (A to (B)The value ranges from 0.05 to 0.075. Further, the height H of the front edge of the folded edge 4 2 And height H at the trailing edge 1 The ratio of (a) is in a range of 0.11 to 0.16, and it should be noted that, in the vertical direction of the front edge and the rear edge of the folded edge 4, the distance between the middle wing 3 and the rear wing 5 on both sides of the folded edge 4 is as described in this embodiment.
In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (8)
1. A hydrofoil is characterized in that the hydrofoil is of an integrated structure and comprises a middle part, a connecting part and two sections of wings;
the left side and the right side of the middle part are respectively provided with the two sections of wings; the connecting part is arranged at the rear part of the middle part; the connecting part is provided with a connecting joint or a connecting interface and is connected with the surfboard or the ship body through the adapter;
the middle part is of a streamline structure, and the surfaces of the two ends are smoothly connected with the surfaces of the two sections of wings;
the two sections of wings are of combined wing type structures and comprise a middle section wing and a rear section wing, and the whole wing is of a pointed wing structure; the middle section wing and the rear section wing are connected through a folded edge; and at the joint of the folded edges, the horizontal position of the rear section wing is higher than that of the middle section wing.
2. A hydrofoil according to claim 1, characterized in that the span-wise length (L) of the mid-section wing 1 ) And the length (L) of the rear section wing along the wingspan direction 2 ) The ratio of (A) is in the range of 3.4-3.5.
3. A hydrofoil according to claim 1, characterized in that the span-wise length (L) of the mid-section wing 1 ) And the length (L) of the rear section wing along the wingspan direction 2 ) The ratio of (A) is in the range of 2.7-2.8.
4. A hydrofoil according to claim 1, characterized in that the span-wise length (L) of the mid-section wing 1 ) And the length (L) of the rear section wing along the wingspan direction 2 ) The ratio of (A) is in the range of 2.0-2.1.
5. A hydrofoil according to any one of claims 1 to 4 wherein the junction of the flange with the mid-section and rear section is rounded.
6. A hydrofoil according to claim 5, characterized in that the fold has a spanwise length (L) 3 ) And the length (L) of the rear section wing along the wingspan direction 2 ) The ratio of (A) is in the range of 0.05-0.075.
7. Hydrofoil according to claim 6, characterized in that the height (H) at the leading edge of the flange is such that 2 ) Height (H) at trailing edge 1 ) The ratio of (A) is in the range of 0.11-0.16.
8. A hydrofoil according to claim 1, wherein said connecting portion is arranged on the axis of symmetry of said intermediate portion in the chordwise direction; the connecting part is of a hollow square pipe structure, the end part of the connecting part is provided with a connecting interface, and the connecting interface is spliced with the adaptor; and a fillet or cambered surface structure is processed at the joint of the connecting part and the middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220999312.8U CN217074704U (en) | 2022-04-28 | 2022-04-28 | Hydrofoil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220999312.8U CN217074704U (en) | 2022-04-28 | 2022-04-28 | Hydrofoil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217074704U true CN217074704U (en) | 2022-07-29 |
Family
ID=82501494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220999312.8U Active CN217074704U (en) | 2022-04-28 | 2022-04-28 | Hydrofoil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217074704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115408778A (en) * | 2022-10-31 | 2022-11-29 | 北京大学 | Method, device and equipment for determining hydrofoil structure size parameters of cross-medium aircraft |
-
2022
- 2022-04-28 CN CN202220999312.8U patent/CN217074704U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115408778A (en) * | 2022-10-31 | 2022-11-29 | 北京大学 | Method, device and equipment for determining hydrofoil structure size parameters of cross-medium aircraft |
| CN115408778B (en) * | 2022-10-31 | 2023-03-10 | 北京大学 | Method, device and equipment for determining hydrofoil structure size parameters of cross-medium aircraft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20040061029A1 (en) | High efficiency tip vortex reversal and induced drag reduction | |
| US7100867B2 (en) | Lifting foil | |
| US10894584B2 (en) | Low-drag fin and foil system for surfboards | |
| CN217074704U (en) | Hydrofoil | |
| CN114771717B (en) | Small waterplane area three-body wing ship | |
| US3987982A (en) | Wind-powered flying boat | |
| CN103523223B (en) | Transverse course control system and transverse course control method for flying wing configuration | |
| CN201010045Y (en) | Ground-effect aircraft | |
| CN209521859U (en) | A kind of double-body hydrofoil formula seaplane | |
| CN109436183B (en) | Bat type T-shaped high lift hydrofoil device | |
| CN111776131B (en) | An ultra-high-speed surface vehicle based on a three-segment supercavitating hydrofoil | |
| WO2007130700A2 (en) | Surfboard fin system | |
| JP3477564B2 (en) | Bilge vortex energy recovery system for ships | |
| AU643642B2 (en) | Stable racing catamaran with hydrofoil qualities | |
| GB2177353A (en) | Boat keel | |
| CN113859514B (en) | Split type allies oneself with wing overall arrangement aircraft | |
| US8348198B2 (en) | Sail wing with high span efficiency and controlled pitching moment | |
| CN114851790B (en) | Drag-reducing flying wing structure of amphibious vehicle | |
| CN201296149Y (en) | Amphibious catamaran hydrofoil sightseeing boat | |
| US20120285354A1 (en) | Adjusting rigid foil spar system | |
| CN103625602B (en) | Water-surface monomer unmanned wing planing boat with two hydraulic propellers | |
| WO2021092652A1 (en) | A hydrofoil arrangement for a watercraft. | |
| CN222005331U (en) | Single-oar ship vortex fin device | |
| CN221585778U (en) | Long flight vertical take-off and landing UAV | |
| CN221623941U (en) | Three-dimensional stealthy wing sword |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |