CN110576970A - Hydrofoil and air bag combined type water surface lifting device - Google Patents
Hydrofoil and air bag combined type water surface lifting device Download PDFInfo
- Publication number
- CN110576970A CN110576970A CN201810590797.3A CN201810590797A CN110576970A CN 110576970 A CN110576970 A CN 110576970A CN 201810590797 A CN201810590797 A CN 201810590797A CN 110576970 A CN110576970 A CN 110576970A
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- CN
- China
- Prior art keywords
- hydrofoil
- air bag
- water surface
- combined type
- lifting device
- 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.)
- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 210000001015 abdomen Anatomy 0.000 claims description 14
- 239000002775 capsule Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C35/00—Flying-boats; Seaplanes
- B64C35/001—Flying-boats; Seaplanes with means for increasing stability on the water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C35/00—Flying-boats; Seaplanes
- B64C35/008—Amphibious sea planes
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
A hydrofoil and air bag combined type water surface lifting device comprises the following contents: (1) at least comprises a hydrofoil and a hydrofoil retraction device; (2) at least comprises a gasbag and a device for inflating and deflating the gasbag; (3) the balloon includes a flexible wall. When the airplane slides on the water surface at a high speed, the hydrofoil is used for providing dynamic lifting force of the airplane, and the strength of the hydrofoil can completely resist huge hydraulic impact; when the aircraft is in low sliding speed or completely static, the air bag is inflated and provides static buoyancy, and the aircraft keeps a certain distance from the water surface, so that the water inflow of an engine and the corrosion of an engine body are avoided; when the aircraft flies at high speed in the air, the hydrofoils and the air bags are all retracted, so that the additional windward area of the aircraft is not increased.
Description
Technical Field
the invention belongs to the field of water take-off and landing devices of water craft, and particularly relates to a hydrofoil and air bag combined water surface take-off and landing device.
Background
The seaplane realizes the take-off, landing and mooring on the water surface by utilizing a hull or a buoy below a belly. The main advantages are that it can be used on the surface of rivers, lakes, rivers and seas with wide water area, it is safe, the ground auxiliary facilities are economical, the tonnage of the airplane is not limited, so it can be widely used in patrol, anti-dive and rescue on the sea. The main disadvantages of the seaplane are: the aircraft is influenced by the shape of a ship body or an externally hung buoy, the weight of the aircraft body is large, the aerodynamic resistance is large, and therefore the aircraft cannot be compared with an aircraft taking off and landing on the land in the aspects of flying speed, endurance mileage and fuel economy. For example, the most advanced seaplane AG600 in China currently has the maximum horizontal flight speed of 500 km/h, the maximum flight distance of 4500 km and the use lift limit of 6000 m, while the most advanced land take-off and landing transport plane in China has the maximum horizontal flight speed of 920 km/h, the maximum flight distance of 7800 km and the use lift limit of 13000 m.
To solve this problem, in the fifties of the last century, the american well firms proposed a solution with a water pry (understood as a hydrofoil with a very small aspect ratio) — a Sea Dart (Sea Dart). The method is characterized in that: in the taking-off and landing process, the water pry below the belly extends out to provide dynamic lifting force for the airplane to slide on the water surface; in flight, the water pry is retracted and flush with the belly, so that the flight resistance cannot be increased. The problems are that: when the airplane is at a low sliding speed or is static, the water pry loses the lifting force, and a large part of the volume of the airplane is buried in water. In order to solve the problem of water inflow of the air inlet and the air outlet of the engine, the mounting position of the engine needs to be raised, so that the propelling force of the engine deviates from the gravity center of the airplane, and a large moment for forcing the nose to downwards is generated in the process of rapid acceleration. On day 4 of 1954, the "sea dart" disintegrated in the air in one display flight, and the pilot was responsible for the situation, which was directly the cause of this defect. The Chinese patent 'folding inflatable buoy and seaplane applying the folding inflatable buoy' (application number CN 201110404181.0) proposes that the inflatable buoy capable of being inflated and deflated is utilized to solve the lifting force problem of the seaplane after being static. The method is characterized in that: the folding bracket mechanism is positioned in the folding inflatable buoy, and two ends of the folding bracket mechanism are connected with two ends of the hydraulic driving device and used for realizing folding and unfolding of the folding inflatable buoy; the skin covers the periphery of the folding bracket mechanism, and the interior of the skin forms a closed space isolated from the outside and used for carrying out buoy modeling when the folding bracket mechanism is unfolded; and the inflation and deflation device is positioned outside the skin and used for inflating and deflating the closed space formed by the skin. The following problems arise if this scheme is implemented: when the aircraft is just landed or is close to takeoff, the speed can reach more than 200 km/h, and the water has huge impact force on the buoy, which causes the buoy formed by the skin to be in danger of being disassembled.
Disclosure of Invention
In order to solve the problems, the invention provides a hydrofoil and air bag combined type water surface lifting device, which simultaneously solves three problems: hydraulic impact when the water craft slides on the water surface at high speed; providing a lifting force and a lifting height when the water surface is static; frontal area when flying in the air.
A hydrofoil and air bag combined type water surface lifting device comprises the following contents:
(1) At least comprises a hydrofoil and a hydrofoil retraction device; (2) at least comprises a gasbag and a device for inflating and deflating the gasbag; (3) the balloon includes a flexible wall.
The hydrofoil is combined with the flexible bladder wall in a sealing way, and the hydrofoil forms the rigid lower bladder wall of the air bag.
The hydrofoil has a wing groove, the inner contour of which is similar to the outer contour of the hydrofoil, and the hydrofoil can be embedded in the wing groove.
The wing grooves are hermetically combined with the flexible capsule wall, and the wing grooves form a rigid upper capsule wall of the air bag.
The hydrofoil retraction device comprises a front hydraulic cylinder and a rear hydraulic cylinder, wherein the lower end of the front hydraulic cylinder and the lower end of the rear hydraulic cylinder are connected with the inner surface of the hydrofoil; the hydraulic control system is further included.
The displacement of the rear hydraulic cylinder is larger than that of the front hydraulic cylinder.
The air bag is divided into a plurality of independent chambers through flexible diaphragms.
The composite water landing gear is arranged under the belly of the airplane.
The composite landing gear is symmetrically arranged below the wings of the airplane.
When the airplane slides on the water surface at a high speed, the hydrofoil is used for providing dynamic lifting force of the airplane, and the strength of the hydrofoil can completely resist huge hydraulic impact; when the aircraft slides at a low speed or completely stops, the air bag is inflated and provides static buoyancy, and the aircraft keeps a certain distance from the water surface, so that water inflow of an engine and corrosion of an engine body are avoided; when the aircraft flies at high speed in the air, the hydrofoils and the air bags are all retracted, so that the additional windward area of the aircraft is not increased.
Drawings
FIG. 1 is a schematic view of a hydrofoil and air bag combined water surface lifting device in a stowed state, shown from the front;
FIG. 2 is a schematic view of the hydrofoil and air bag combined water surface lifting device in a retracted state-a left side view;
Fig. 3 is a schematic view of the hydrofoil and air bag combined type water surface lifting device in an opened state, namely a front view.
In the figure: 1. an aircraft; 2. a hydrofoil; 3. an air bag; 4. a capsule wall; 5. a diaphragm; 6. a chamber; 7. the inner surface of the hydrofoil; 8. a wing groove; 9. a front hydraulic cylinder; 10. a rear hydraulic cylinder; 11. a landing gear bay; 12. a belly 13, a wing; 14. and an auxiliary buoy.
In the figure: 1. an aircraft; 2. a hydrofoil; 3. an air bag; 4. a capsule wall; 5. a diaphragm; 6. a chamber; 7. the inner surface of the hydrofoil; 8. a wing groove; 9. a front hydraulic cylinder; 10. a rear hydraulic cylinder; 11. a landing gear bay; 12. a belly 13, a wing; 14. and an auxiliary buoy.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
the invention is further described with reference to the following figures and specific examples.
FIG. 1 ~ FIG. 3 shows an embodiment of the present invention on a large conveyor.
The aircraft 1 retains land landing gear and the landing gear compartment 11 houses wheeled landing gear figure 1 ~ figure 2 shows the aircraft in flight at high speed in the air and with the hydrofoil 2 (the hydrofoil and the water wing are referred to herein as "hydrofoils") in a stowed position on the belly 12, with a smooth transition from the shape of the wing to the belly 12, without additional wind resistance.
Fig. 3 is a schematic view of the aircraft in a planing and stopped state on water, and for convenience of presentation, the flexible wall 4 is transparentized, and the hydrofoil 2 is extended and the airbag 3 is inflated. The front part of the inner surface 7 of the hydrofoil is connected with the lower end of the front hydraulic cylinder 9, and the rear part of the inner surface 7 of the hydrofoil is connected with the lower end of the rear hydraulic cylinder 10. The displacement of the rear hydraulic cylinder 10 is greater than the displacement of the front hydraulic cylinder 9, so that in the maximum open position of the hydrofoil 2, the hydrofoil 2 has an inclination with respect to the central axis of the aircraft, and provides a greater upward hydrodynamic force during landing and takeoff. The two hydraulic cylinders are controlled by a set of hydraulic system, and the hydraulic control system consists of a hydraulic pump, an electromagnetic valve, a hydraulic pipeline and a hydraulic controller, which are not shown in the figure.
The belly 12 is provided with a wing groove 8, the inner contour of which is matched with the outer contour of the hydrofoil 2, and when the hydrofoil 2 is folded, as shown in figures 1 and 2, the hydrofoil can be embedded in the wing groove 8, so that the outer surface of the hydrofoil 2 is smoothly transited with the belly 12.
Fig. 3 shows that the air bag 3 is also included, and when the airplane slides on the water surface and stops, the air bag is inflated by using a set of inflating devices. The periphery of the air bag 3 is a circle of flexible bag wall 4, the bag wall 4 is hermetically combined with the inner surface 7 of the hydrofoil, and the hydrofoil 2 forms the rigid lower bag wall of the air bag 3. The wing grooves 8 are hermetically joined to the bag wall 4, the wing grooves 8 constituting a rigid upper bag wall of the airbag 3. The interior of the air bag 3 is divided into a plurality of independent chambers 6 by flexible diaphragms 5, so that even if the air leaks from individual chambers, the airplane can still be ensured to be far away from the water surface. The air charging and discharging of each chamber is realized by a set of air charging and discharging devices, which comprise an air pump, an air switching valve, an air pipeline and a pneumatic controller, which are not shown in the figure.
FIG. 1 ~ the embodiment shown in FIG. 3 shows a hydrofoil and bladder combined take-off and landing apparatus mounted under the belly 12 of an aircraft 1 and auxiliary buoys 14 symmetrically mounted under the wings 13 to correct the roll of the aircraft 1 on the water surface the combined take-off and landing apparatus of the present invention can be used in place of the buoys 14 to provide dynamic and static buoyancy, or the positions of both the belly 12 and buoys 14 can be used to provide multi-point water support.
The hydrofoil 2 and the airbag 3 can also be arranged separately at different positions of the aircraft: for example, the hydrofoil is installed on the belly, the air bags are installed on two sides of the wing, the height direction of the hydrofoil is downward, and the height direction of the air bags is upward. When the aircraft slides on the water surface at a high speed, the hydrofoils are in contact with the water to provide dynamic lifting force, and the air bags are not in contact with the water surface. When the aircraft slides at low speed or is static, the distance between the aircraft and the water surface is reduced, and the air bag is in contact with the water surface to provide static buoyancy.
besides being used for seaplanes, the invention can also be popularized and used for other seaplane taking-off and landing aircrafts, such as seaplane-ground-effect aircrafts and seaplane ferry aircrafts.
The above embodiments are merely some specific embodiments for implementing the present invention, and do not include all embodiments. Based on the present embodiment and the idea of the present invention, other technicians can make non-invasive new modifications and variations to the above-mentioned embodiment by using the known technology, and all fall into the protection scope of the present invention.
Claims (9)
1. The utility model provides a hydrofoil and gasbag combined type surface of water take-off and landing device which characterized in that: (1) at least comprises a hydrofoil and a hydrofoil retraction device; (2) at least comprises a gasbag and a device for inflating and deflating the gasbag; (3) the balloon includes a flexible wall.
2. The hydrofoil and air bag combined type water surface lifting device according to claim 1, wherein: the hydrofoil is combined with the flexible capsule wall in a sealing way, and the hydrofoil forms the rigid lower capsule wall of the air bag.
3. The hydrofoil and air bag combined type water surface lifting device according to claim 1, wherein: the hydrofoil has a wing groove, the inner contour of which is similar to the outer contour of the hydrofoil, and the hydrofoil can be embedded in the wing groove.
4. The hydrofoil and air bag combined type water surface lifting device according to claim 3, wherein: the wing grooves are hermetically combined with the flexible capsule wall, and the wing grooves form a rigid upper capsule wall of the air bag.
5. The hydrofoil and air bag combined type water surface lifting device according to claim 1, wherein: the hydrofoil retraction device comprises a front hydraulic cylinder and a rear hydraulic cylinder, wherein the lower end of the front hydraulic cylinder and the lower end of the rear hydraulic cylinder are connected and are connected with the inner surface of the hydrofoil, and the hydrofoil retraction device also comprises a set of hydraulic control system.
6. The hydrofoil and air bag combined type water surface lifting device according to claim 1, wherein: the displacement of the rear hydraulic cylinder is larger than that of the front hydraulic cylinder.
7. The hydrofoil and air bag combined type water surface lifting device according to claim 1, wherein: the air bag is divided into a plurality of independent chambers through flexible diaphragms.
8. The hydrofoil and air bag combined type water surface lifting device according to claim 1, wherein: the composite water landing gear is arranged under the belly of the airplane.
9. The hydrofoil and air bag combined type water surface lifting device according to claim 1, wherein: the composite landing gear is symmetrically arranged below the wings of the airplane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590797.3A CN110576970A (en) | 2018-06-09 | 2018-06-09 | Hydrofoil and air bag combined type water surface lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590797.3A CN110576970A (en) | 2018-06-09 | 2018-06-09 | Hydrofoil and air bag combined type water surface lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110576970A true CN110576970A (en) | 2019-12-17 |
Family
ID=68809235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810590797.3A Pending CN110576970A (en) | 2018-06-09 | 2018-06-09 | Hydrofoil and air bag combined type water surface lifting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110576970A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152923A (en) * | 2020-01-07 | 2020-05-15 | 长江水利委员会长江科学院 | Underwater terrain measuring device based on vertical take-off and landing fixed wing amphibious unmanned aerial vehicle |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1149619A (en) * | 1966-06-13 | 1969-04-23 | Edgar Leonarde Keedy | Inflatable support means for aircraft |
| DE3841878A1 (en) * | 1988-12-13 | 1990-06-21 | Dornier Gmbh | Vehicle having means for producing hydrodynamic lift, such as boats, seaplanes and, in particular, flying boats |
| RU2024418C1 (en) * | 1992-01-16 | 1994-12-15 | Демидченко Владимир Иванович | Seaplane |
| CN1876493A (en) * | 2006-06-01 | 2006-12-13 | 肖忠渊 | Carbon fiber composite material manufactured helicopter capable of launching and landing from water and land |
| CN200985093Y (en) * | 2006-12-22 | 2007-12-05 | 中国科技开发院 | Water-driving arrangement for ground effect aircraft |
| CN200988577Y (en) * | 2005-11-07 | 2007-12-12 | 邵厚洪 | Double airframe triphibian aircraft |
| CN201023656Y (en) * | 2007-03-02 | 2008-02-20 | 广州天象地效飞行器股份有限公司 | Ground effect aircraft |
| CN101544280A (en) * | 2008-12-10 | 2009-09-30 | 陈宜中 | Amphibious aircraft carrier |
| JP2010126008A (en) * | 2008-11-27 | 2010-06-10 | Gracemarie World Corp | Shift (telescopic motion) type float seaplane (semi-boat seaplane or the like) |
| WO2012175756A1 (en) * | 2011-06-20 | 2012-12-27 | Aerovision Vehiculos Aereos, S.L. | Device whereby an aircraft can land on water |
| KR20150002927U (en) * | 2014-01-20 | 2015-07-29 | 대우조선해양 주식회사 | Landing assistance apparatus for Wing In Ground effect ship |
| US20150321757A1 (en) * | 2014-05-08 | 2015-11-12 | Perry Gino DiClemente | Multi-hull seaplane |
| CN106314814A (en) * | 2016-09-28 | 2017-01-11 | 天津大学 | Fixed-wing-unmanned-aerial-vehicle portable taking-off device for field scientific research and application method |
| CN208576725U (en) * | 2018-06-09 | 2019-03-05 | 天津大学（青岛）海洋工程研究院有限公司 | A kind of hydrofoil and air bag combined type water surface lifting gear |
-
2018
- 2018-06-09 CN CN201810590797.3A patent/CN110576970A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1149619A (en) * | 1966-06-13 | 1969-04-23 | Edgar Leonarde Keedy | Inflatable support means for aircraft |
| DE3841878A1 (en) * | 1988-12-13 | 1990-06-21 | Dornier Gmbh | Vehicle having means for producing hydrodynamic lift, such as boats, seaplanes and, in particular, flying boats |
| RU2024418C1 (en) * | 1992-01-16 | 1994-12-15 | Демидченко Владимир Иванович | Seaplane |
| CN200988577Y (en) * | 2005-11-07 | 2007-12-12 | 邵厚洪 | Double airframe triphibian aircraft |
| CN1876493A (en) * | 2006-06-01 | 2006-12-13 | 肖忠渊 | Carbon fiber composite material manufactured helicopter capable of launching and landing from water and land |
| CN200985093Y (en) * | 2006-12-22 | 2007-12-05 | 中国科技开发院 | Water-driving arrangement for ground effect aircraft |
| CN201023656Y (en) * | 2007-03-02 | 2008-02-20 | 广州天象地效飞行器股份有限公司 | Ground effect aircraft |
| JP2010126008A (en) * | 2008-11-27 | 2010-06-10 | Gracemarie World Corp | Shift (telescopic motion) type float seaplane (semi-boat seaplane or the like) |
| CN101544280A (en) * | 2008-12-10 | 2009-09-30 | 陈宜中 | Amphibious aircraft carrier |
| WO2012175756A1 (en) * | 2011-06-20 | 2012-12-27 | Aerovision Vehiculos Aereos, S.L. | Device whereby an aircraft can land on water |
| KR20150002927U (en) * | 2014-01-20 | 2015-07-29 | 대우조선해양 주식회사 | Landing assistance apparatus for Wing In Ground effect ship |
| US20150321757A1 (en) * | 2014-05-08 | 2015-11-12 | Perry Gino DiClemente | Multi-hull seaplane |
| CN106314814A (en) * | 2016-09-28 | 2017-01-11 | 天津大学 | Fixed-wing-unmanned-aerial-vehicle portable taking-off device for field scientific research and application method |
| CN208576725U (en) * | 2018-06-09 | 2019-03-05 | 天津大学（青岛）海洋工程研究院有限公司 | A kind of hydrofoil and air bag combined type water surface lifting gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152923A (en) * | 2020-01-07 | 2020-05-15 | 长江水利委员会长江科学院 | Underwater terrain measuring device based on vertical take-off and landing fixed wing amphibious unmanned aerial vehicle |
| CN111152923B (en) * | 2020-01-07 | 2021-06-25 | 长江水利委员会长江科学院 | Underwater terrain measuring device based on vertical take-off and landing fixed wing amphibious unmanned aerial vehicle |
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