CN109502037A - A kind of urgent descending mechanism of the reversed jet bubbling crystallzation aviation aircraft water surface - Google Patents
A kind of urgent descending mechanism of the reversed jet bubbling crystallzation aviation aircraft water surface Download PDFInfo
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- CN109502037A CN109502037A CN201811355430.XA CN201811355430A CN109502037A CN 109502037 A CN109502037 A CN 109502037A CN 201811355430 A CN201811355430 A CN 201811355430A CN 109502037 A CN109502037 A CN 109502037A
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- water surface
- fuselage
- fixed block
- pipeline
- steering mechanism
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 230000007246 mechanism Effects 0.000 title claims abstract description 71
- 230000005587 bubbling Effects 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 18
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 12
- 210000003934 vacuole Anatomy 0.000 description 11
- 230000003139 buffering effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/04—Landing aids; Safety measures to prevent collision with earth's surface
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
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Abstract
A kind of urgent descending mechanism of the reversed jet bubbling crystallzation aviation aircraft water surface, belongs to aviation aircraft water surface forced landing technical field.The present invention includes high energy jet hole, compel descending mechanism fixed block, motor, nozzle, steering mechanism, hose, fuselage, pipeline fixed block, pipeline, gas flowmeter, gas pressure regulating valve, air compressor, mechanism sealing cover, compel the opening that descending mechanism fixed block is fixed on fuselage, compel the center installation steering mechanism of descending mechanism fixed block, it is mechanism sealing cover below steering mechanism, steering mechanism is connected to motor, there is high energy jet hole in steering mechanism, high energy jet hole is successively connect with nozzle, hose, pipeline, air compressor connection, pipeline has gas flowmeter, gas pressure regulating valve.The present invention makes body slow down, and reduces into water resistance, slowly smoothly enters water, the gas jet stream of sending is both the reaction object of deceleration buffer, moreover it is possible to generate bubbling crystallzation, not need additional high pressure gas generation device, reduce the shock loading of itself and the water surface to greatest extent.
Description
Technical field
The invention belongs to aviation aircraft water surface forced landing technical fields, and in particular to a kind of reversed jet bubbling crystallzation aviation
Aircraft water surface forced landing mechanism.
Background technique
As across the water flying activity of the aircrafts such as aircraft, helicopter is more and more common, bring water surface forced landing accident
It is more and more.Either aircraft or helicopter, it is more complex relative to static land forced landing in water surface forced landing.Aircraft exists
When land is force-landed, the point face contact of fuselage and ground face contact by develops to plane-plane contact, and shock loading is concentrated mainly on
Aircraft belly, due to airframe structure arrangement using honeycomb interlayer, foam fill etc. energy-absorbing bufferings structure, energy-absorbing buffering structure with
It is gradually crushed or destroys in the contact process of ground, finally other non-endergonic structures bear fraction shock loading by fuselage, in this way
Energy-absorbing buffering structure can play maximum cushioning effect；And the water surface force-lands, airsurfaceunderwater contact is directly exactly plane-plane contact, is compared
In ground struck, shock loading is relatively small, so that the energy-absorbing buffering structure conquassation of airframe structure arrangement is smaller, it is difficult to maximum limit
Degree play energy-absorbing buffering effect, and unabsorbed energy very likely result in housing construction fracture, along with the water surface rise and fall and
Water flow it is unpredictable, fuselage and the water surface hit caused by damage be no less than and damage caused by collision on the ground.With right
The research of water surface forced landing technology, people are gradually developed into the research to structure water entry shock problem, and are widely applied to
The fields such as ship, Torpedo Water Entry.From the point of view of result of study, enormous impact load caused by the forced landing of the aviation aircraft water surface is direct
Influence airframe or the safety of personnel, and during forced landing for aircraft, the engines of two sides in forced landing at
For obstacle, high resistance can be generated, it is more likely that cause wing fracture aircraft to disintegrate, once aircraft disintegrates in the water surface, surviving can
Energy property can be very low.Researchers at home and abroad all generally concentrate in the forced landing numerical value calculating of the research water surface and simulation, emphatically analysis machine
Body enters the shock loading of water, to can alleviate or reduce water impact load structure or mechanism proposition it is few few, thus very
It is necessary to propose that a kind of water surface forced landing is slowed down to drop the scheme of resistance.The program mainly uses the vacuole technology in underwater drag reduction, a side
Face gas jet stream when not entering water may act as the reaction object to slow down, cut down the speed of aviation aircraft decline；On the other hand work as to enter
It can produce vacuole package fuselage when water, slowly enter water, reduce aviation aircraft and the excessive shock loading of the water surface.
The present invention aviation aircraft force-land during using high energy gas jet stream spray the water surface, fuselage during decline with
Continuous slow resistance is generated between the water surface, so that fuselage be made slowly to decline when close to the water surface, fuselage contacts generation with the water surface
Non- step evolution shock loading, when forced landing, greatly reduce the impact between fuselage and the water surface.High energy gas jet stream is torn after the contact water surface
The water surface and form gas cavity during entering water and wrap up fuselage, to reduce into water resistance, keep aviation aircraft smooth and
Slowly enter water forced landing.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of reversed jet bubbling crystallzation aviation aircraft waters surface to compel descending mechanism.
To achieve the above object, a kind of reversed jet bubbling crystallzation aviation aircraft water surface compels descending mechanism, and structure includes
High energy jet hole 1 compels descending mechanism fixed block 2, motor 3, nozzle 4, steering mechanism 5, hose 6, fuselage 7, pipeline fixed block 8, pipe
Road 9, gas flowmeter 10, gas pressure regulating valve 11, air compressor 12, mechanism sealing cover 13, the urgent descending mechanism fixed block 2
It is fixed on the opening of fuselage 7, the center for compeling descending mechanism fixed block 2 is equipped with steering mechanism 5, is equipped with below steering mechanism 5
Mechanism sealing cover 13, steering mechanism 5 are connected with motor 3；The motor 3 is placed on urgent descending mechanism fixed block 2, steering mechanism
High energy jet hole 1 is installed, high energy jet hole 1 is connect with nozzle 4, and nozzle 4 is connect with hose 6, and hose 6 passes through pipeline 9 and sky on 5
Air compressor 12 connects；The air compressor 12 is located on fuselage 7；The pipeline 9 is equipped with 10 He of gas flowmeter
Gas pressure regulating valve 11, gas pressure regulating valve 11 are located at close to the side of air compressor 12.
The direction of the nozzle 4 changes with the rotation of steering mechanism 5.
The size of the mechanism sealing cover 13 is identical as the opening of fuselage 7.
The beneficial effects of the present invention are:
A kind of reversed jet bubbling crystallzation aviation aircraft water surface provided by the invention compels descending mechanism, and more traditional directly compels
For drop mode, which can not only make body slow down, moreover it is possible to reduce into water resistance, body is made slowly smoothly to enter water.The dress
The gas jet stream set not only serves as the reaction object of deceleration buffer, and can also generate bubbling crystallzation, does not need additional high pressure
Gas generation apparatus.For the aviation aircraft to run out of steam, which can reduce its impact with the water surface to greatest extent
Load.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is a specific embodiment of the invention schematic diagram.
Specific embodiment:
The present invention will be further described with reference to the accompanying drawing:
Embodiment 1
A kind of urgent descending mechanism of the reversed jet bubbling crystallzation aviation aircraft water surface, structure include high energy jet hole 1, forced landing
Mechanism fixed block 2, motor 3, nozzle 4, steering mechanism 5, hose 6, fuselage 7, pipeline fixed block 8, pipeline 9, gas flowmeter 10,
Gas pressure regulating valve 11, air compressor 12, mechanism sealing cover 13 compel the opening that descending mechanism fixed block 2 is fixed on fuselage 7, compel
The center of descending mechanism fixed block 2 is equipped with steering mechanism 5, and mechanism sealing cover 13, steering mechanism 5 are equipped with below steering mechanism 5
It is connected with motor 3, motor 3 is placed on urgent descending mechanism fixed block 2, high energy jet hole 1 is installed in steering mechanism 5, high energy is penetrated
Discharge orifice 1 is connect with nozzle 4, and nozzle 4 is connect with hose 6, and hose 6 is connect by pipeline 9 with air compressor 12, air compressor
12 are located on fuselage 7, and pipeline 9 is equipped with gas flowmeter 10, gas pressure regulating valve 11, and gas pressure regulating valve 11 is located at close to air pressure
The side of contracting machine 12.
The direction of the high energy jet hole 1 and nozzle 4 changes with the rotation of steering mechanism 5.
The size of the mechanism sealing cover 13 is identical as the opening of fuselage 7.
The operation principle of the present invention is that air compressor 12 generates high energy gas by pipeline 9, by gas pressure regulating valve 11
Enter nozzle 4, warp with gas flowmeter 10, high energy jet hole 1 sprays at a high speed the water surface, requires to be turned by the control of motor 3 according to forced landing
The direction that nozzle 4 is adjusted to mechanism 5, reduces the decrease speed of aviation aircraft under the reaction force of injection；In addition, navigating
The water surface is torn one of gap by high energy gas jet stream high speed ejection during empty aircraft decline, is formed opening vacuole and is wrapped up fuselage,
Reduce into water resistance.Whole process is fed back to required for computer control forced landing as gas flowmeter 10 and gas pressure regulating valve 11
Gas flow and pressure.
For aircraft, according to research and flying experience, the water surface must assure that standard of fuselage posture is smaller faces upward when force-landing
Angle, tail portion, which first enters water, makes aircraft, guarantees that airframe is not caused to disintegrate by high-velocity flow compressing, therefore afterbody can be equal
Even arrangement device；The forced landing of the helicopter water surface is mostly vertical decline, it is contemplated that this device is evenly arranged in fuselage bottom.
The specific work process of the device is as follows:
When aviation aircraft chance emergency needs to force-land the water surface, driver chooses forced landing waters, by aviation aircraft
It is pulled down to certain forced landing height；Opening mechanism sealing cover 13 determines immersion angle degree according to aviation aircraft current pose and controls
Motor 3 adjusts steering mechanism 5 and adjusts nozzle 4 to certain angle, by being placed in aviation aircraft when close to water surface height
The computer starting in the portion device；Computer controls air compressor 12 and sprays high energy high pressure gas by high energy jet hole 1, and leads to
Cross gas flowmeter 10, gas pressure regulating valve 11 obtains data appropriate adjustment gas jet stream, preventing from spraying too drastic leads to aviation aircraft
Unstability；Gas jet stream squeezes the water surface and tears gap, gradually forms opening vacuole, and fuselage is wrapped up by vacuole, and digging water speed and impact rub
It wipes resistance to decline to a great extent, aviation aircraft forced landing process does not have step evolution to impact and smoothly smooth fall into the water.
Embodiment 2
A kind of urgent descending mechanism of the reversed jet bubbling crystallzation aviation aircraft water surface
The design relates generally to aviation aircraft water surface forced landing technical field.Aviation aircraft is meeting the urgent precipitation of emergency
When face, a possibility that surviving for raising personnel and save body as far as possible, should as far as possible by aviation aircraft during forced landing with
The shock loading that the water surface generates when contacting reduces.The water surface not only generates airframe structure with the excessive shock loading of body huge
It destroys, even more directly influences the chances of survival of staff on board.For this purpose, being penetrated during aviation aircraft forced landing using high energy gas
The stream injection water surface, fuselage during decline with continuous slow resistance is generated between the water surface, to make fuselage close to the water surface
When slowly decline, fuselage is contacted with the water surface generates non-step evolution shock loading, and when forced landing greatly reduces between fuselage and the water surface
Impact.High energy gas jet stream tears the water surface and forms gas cavity package fuselage during entering water after the contact water surface, to reduce
Enter water resistance, keep aviation aircraft smooth and slowly enters water forced landing.
As across the water flying activity of the aircrafts such as aircraft, helicopter is more and more common, bring water surface forced landing accident
It is more and more.Either aircraft or helicopter, it is more complex relative to static land forced landing in water surface forced landing.Aircraft exists
When land is force-landed, the point face contact of fuselage and ground face contact by develops to plane-plane contact, and shock loading is concentrated mainly on
Aircraft belly, due to airframe structure arrangement using honeycomb interlayer, foam fill etc. energy-absorbing bufferings structure, energy-absorbing buffering structure with
It is gradually crushed or destroys in the contact process of ground, finally other non-endergonic structures bear fraction shock loading by fuselage, in this way
Energy-absorbing buffering structure can play maximum cushioning effect；And the water surface force-lands, airsurfaceunderwater contact is directly exactly plane-plane contact, is compared
In ground struck, shock loading is relatively small, so that the energy-absorbing buffering structure conquassation of airframe structure arrangement is smaller, it is difficult to maximum limit
Degree play energy-absorbing buffering effect, and unabsorbed energy very likely result in housing construction fracture, along with the water surface rise and fall and
Water flow it is unpredictable, fuselage and the water surface hit caused by damage be no less than and damage caused by collision on the ground.With right
The research of water surface forced landing technology, people are gradually developed into the research to structure water entry shock problem, and are widely applied to
The fields such as ship, Torpedo Water Entry.From the point of view of result of study, enormous impact load caused by the forced landing of the aviation aircraft water surface is direct
Influence airframe or the safety of personnel, and during forced landing for aircraft, the engines of two sides in forced landing at
For obstacle, high resistance can be generated, it is more likely that cause wing fracture aircraft to disintegrate, once aircraft disintegrates in the water surface, surviving can
Energy property can be very low.Researchers at home and abroad all generally concentrate in the forced landing numerical value calculating of the research water surface and simulation, emphatically analysis machine
Body enters the shock loading of water, to can alleviate or reduce water impact load structure or mechanism proposition it is few few, thus very
It is necessary to propose that a kind of water surface forced landing is slowed down to drop the scheme of resistance.The program mainly uses the vacuole technology in underwater drag reduction, a side
Face gas jet stream when not entering water may act as the reaction object to slow down, cut down the speed of aviation aircraft decline；On the other hand work as to enter
It can produce vacuole package fuselage when water, slowly enter water, reduce aviation aircraft and the excessive shock loading of the water surface.
The design has invented a kind of device of water surface forced landing deceleration drop resistance.Concrete structure diagram is shown in Fig. 1, primary structure: 1-
High energy jet hole, 2- compel descending mechanism fixed block, 3- motor, 4- nozzle, 5- steering mechanism, 6- hose, 7- fuselage, and 8- pipeline is fixed
Block, 9- pipeline, 10- gas flowmeter, 11- gas pressure regulating valve, 12- air compressor.The device is specifically laid out and is placed in aviation
The air compressor of aircraft interior generates high energy gas by 9- pipeline, by 11- gas pressure regulating valve and 10- gas flowmeter
Into 4- nozzle through the 1- high energy jet hole high speed injection water surface, required according to forced landing suitably by 3- motor control 5- steering mechanism tune
Whole nozzle direction reduces the decrease speed of aviation aircraft under the reaction force of injection；In addition, declining in aviation aircraft
The water surface is torn one of gap by high energy gas jet stream high speed ejection in the process, is formed opening vacuole and is wrapped up fuselage, reduces into water resistance
Power.Whole process feeds back to gas flow required for computer control is force-landed by 10- gas flowmeter and 11- gas pressure regulating valve
And pressure.
The device, which applies to water surface forced landing, following advantage:
For more traditional direct forced landing mode, which can not only make body slow down, moreover it is possible to reduce into water resistance, make
Body slowly smoothly enters water.The gas jet stream of the device not only serves as the reaction object of deceleration buffer, and can also generate ventilation
Vacuole does not need additional high pressure gas generation device.For the aviation aircraft to run out of steam, which can be to greatest extent
Reduction itself and the water surface shock loading.
For aircraft, according to research and flying experience, the water surface must assure that standard of fuselage posture is smaller faces upward when force-landing
Angle, tail portion, which first enters water, makes aircraft, guarantees that airframe is not caused to disintegrate by high-velocity flow compressing, therefore afterbody can be equal
Even arrangement device；The forced landing of the helicopter water surface is mostly vertical decline, it is contemplated that this device is evenly arranged in fuselage bottom.In figure
It draws a generation three to demonstrate, shown in structure diagram 2.The specific work process of the device is as follows:
(1) when aviation aircraft chance emergency needs to force-land the water surface, driver chooses forced landing waters, by aviation flight
Device is pulled down to certain forced landing height.
(2) opening mechanism sealing cover determines immersion angle degree according to aviation aircraft current pose and controls motor adjustment turn
Nozzle is adjusted to certain angle to mechanism, computer starting when close to water surface height by being placed in inside aviation aircraft
The device.
(3) computer control air compressor by high energy jet hole spray high energy high pressure gas, and by gas flowmeter,
Gas pressure regulating valve obtains data appropriate adjustment gas jet stream, and preventing from spraying too drastic leads to aviation aircraft unstability.
(4) gas jet stream squeeze the water surface tear gap, gradually form opening vacuole, fuselage is wrapped up by vacuole, digging water speed and
Impact friction resistance declines to a great extent, and aviation aircraft forced landing process does not have step evolution to impact and smoothly smooth fall into the water.
Claims (3)
1. a kind of reversed jet bubbling crystallzation aviation aircraft water surface compels descending mechanism, structure includes high energy jet hole (1), forced landing
Mechanism fixed block (2), motor (3), nozzle (4), steering mechanism (5), hose (6), fuselage (7), pipeline fixed block (8), pipeline
(9), gas flowmeter (10), gas pressure regulating valve (11), air compressor (12), mechanism sealing cover (13), it is characterised in that: institute
The urgent descending mechanism fixed block (2) stated is fixed on the opening of fuselage (7), and the center for compeling descending mechanism fixed block (2) is equipped with steering
Mechanism (5), steering mechanism (5) lower section are equipped with mechanism sealing cover (13), and steering mechanism (5) is connected with motor (3)；The electricity
Machine (3) is placed on urgent descending mechanism fixed block (2), in steering mechanism (5) install high energy jet hole (1), high energy jet hole (1) with
Nozzle (4) connection, nozzle (4) are connect with hose (6), and hose (6) is connect by pipeline (9) with air compressor (12)；It is described
Air compressor (12) be located on fuselage (7)；The pipeline (9) is equipped with gas flowmeter (10) and gas pressure regulating valve
(11), gas pressure regulating valve (11) is located at close to the side of air compressor (12).
2. a kind of reversed jet bubbling crystallzation aviation aircraft water surface according to claim 1 compels descending mechanism, feature exists
In: the direction of the nozzle (4) is consistent with the direction of steering mechanism (5).
3. a kind of reversed jet bubbling crystallzation aviation aircraft water surface according to claim 1 compels descending mechanism, feature exists
In: the size of the mechanism sealing cover (13) is identical as the opening of fuselage (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811355430.XA CN109502037B (en) | 2018-11-14 | 2018-11-14 | Water surface forced landing mechanism of reverse air-jet ventilation cavitation aviation aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811355430.XA CN109502037B (en) | 2018-11-14 | 2018-11-14 | Water surface forced landing mechanism of reverse air-jet ventilation cavitation aviation aircraft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109502037A true CN109502037A (en) | 2019-03-22 |
| CN109502037B CN109502037B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811355430.XA Active CN109502037B (en) | 2018-11-14 | 2018-11-14 | Water surface forced landing mechanism of reverse air-jet ventilation cavitation aviation aircraft |
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| CN (1) | CN109502037B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110525698A (en) * | 2019-08-13 | 2019-12-03 | 北京卫星环境工程研究所 | Test macro and test method for space capsule pressure guard system |
| CN110682751A (en) * | 2019-10-17 | 2020-01-14 | 哈尔滨工程大学 | Mechanism for assisting aircraft to land and water slide based on water-beating float principle |
| CN111412382A (en) * | 2020-04-09 | 2020-07-14 | 西北工业大学 | Load reduction model experiment air supply device |
| CN111829402A (en) * | 2020-06-10 | 2020-10-27 | 中山大学 | Method for assisting high-speed water entry by forward water spraying, air spraying and air ventilating cavitation |
| CN113998106A (en) * | 2021-10-27 | 2022-02-01 | 南京壮大智能科技研究院有限公司 | Overwater forced landing method for unmanned aerial vehicle |
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| Publication number | Publication date |
|---|---|
| CN109502037B (en) | 2021-11-09 |
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