CN108216659A - The buffer air bag being vented using explosion mouth - Google Patents
The buffer air bag being vented using explosion mouth Download PDFInfo
- Publication number
- CN108216659A CN108216659A CN201611191545.0A CN201611191545A CN108216659A CN 108216659 A CN108216659 A CN 108216659A CN 201611191545 A CN201611191545 A CN 201611191545A CN 108216659 A CN108216659 A CN 108216659A
- Authority
- CN
- China
- Prior art keywords
- air bag
- utricule
- explosion mouth
- vented
- sail
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS 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
- B64D45/06—Landing aids; Safety measures to prevent collision with earth's surface mechanical
Abstract
The invention discloses a kind of buffer air bag being vented using explosion mouth, air bag utricule is cylinder, and two circular end faces of utricule are principal part（1）, principal part（1）It is divided into two layers, internal layer washs a sail silk fabric using 519 bright and beautiful sail silk fabrics, outer layer lining cloth using 49603；Utricule encloses portion（2）Material is using 519 bright and beautiful sail silk fabrics；Utricule principal part（1）Both ends of the surface center is respectively provided with a round explosion mouth exhaust.The present invention is deflated by buffer air bag explosion, reduces the shock loading of UAV Landing, suitable for the unmanned plane of larger recycling weight.
Description
Technical field
The present invention relates to the landing buffer recycling of unmanned plane, specifically, being a kind of buffering gas being vented using explosion mouth
Capsule.
Background technology
Buffer air bag one of is used as common relief means, air-drop protection, UAV Landing recycling, it is outer
There is extensive application in the fields such as celestial body detecting device soft landing.For unmanned plane recycling for, buffer air bag have additional mass it is low,
The advantages such as folding property is good, packaging volume is small, and at low cost, system is reliable.The unmanned plane that foreign countries develop from the 1960s is just opened
Begin using air bag buffer technology, such as the USD-5 scounting aeroplanes in the U.S., AQM-34V scounting aeroplanes.
In recent years, the domestic research to unmanned plane air bag buffering is increased, and practical application is not also wide, certain domestic type target drone
Two wings are separately mounted to using three air bags, below engine, protect wing and engine in UAV Landing, but its
Small, height is low, and buffering effect is not obvious.Meanwhile because the model of unmanned plane is different, so its shape, weight are also different,
Therefore it when air bag is used to buffer, needs to design the air bag of different schemes.Otherwise easily there is phenomena such as unmanned plane rebound, rollover,
The effect of buffering is not achieved.
Invention content
The purpose of the present invention is to provide a kind of buffer air bags being vented using explosion mouth.
Realize the object of the invention technical solution be：A kind of buffer air bag being vented using explosion mouth, air bag utricule
For cylinder, two circular end faces of utricule are principal part, and principal part is divided into two layers, and internal layer is adopted using 519 bright and beautiful sail silk fabrics, outer layer lining cloth
A sail silk fabric is washed with 49603；Utricule encloses portion's material using 519 bright and beautiful sail silk fabrics；Utricule principal part both ends of the surface center is respectively provided with a circle
Explosion mouth is vented.
The utricule encloses portion equipped with aeration jet.
The utricule encloses is fixedly connected with fixed band in portion by screw.
The air bag height is determined by following formula：
In formula：H --- air bag height；
v0--- the landing speed of unmanned plane；
amax--- the maximum overload of landing of permission；
G --- acceleration of gravity.
Compared with prior art, the present invention its remarkable advantage is：(1) present invention is mainly deflated by buffer air bag explosion,
Reduce the shock loading of UAV Landing.(2) it present invention is mainly used for the recycling of the landing buffer of unmanned plane, is especially adapted for use in
The unmanned plane of larger recycling weight.
Description of the drawings
Attached drawing 1 is the outline drawing of air bag in the present invention.
Specific embodiment
With reference to attached drawing, the utricule of air bag of the present invention is cylinder, and respectively there are one round explosion mouth exhausts at cylindrical both ends.Capsule
Two circles of body are principal part, the bright and beautiful sail silk fabric of coating 519 of principal part material high intensity, using anti-tear performance it is high 49603 wash silk
Sail silk fabric prevents stress concentration during air bag explosion mouth explosion from tear principal part as outer layer lining cloth；Utricule encloses portion's material using high-strength
The bright and beautiful sail silk fabric of coating 519 of degree.An air bag is respectively assembled before and after unmanned plane body center of gravity, in gravity during UAV Landing
Air pressure increase absorbs landing shock energy in lower gasbag, discharge release impact energy after explosion mouth explosion.
Air bag height is determined by following formula：
In formula：H --- air bag height；
v0--- the landing speed of unmanned plane；
amax--- the maximum overload of landing of permission；
G --- acceleration of gravity.
The present invention is when UAV Landing, and under unmanned plane gravity, gas pressure increases in air bag, temperature increases,
Until before explosion mouth explosion, air bag absorbs impact energy；After explosion mouth explosion, airbag gas is discharged from explosion mouth, is being discharged
In gas process, the impact energy absorbed is more slowly discharged, achievees the purpose that reduce landing shock load.
Air bag utricule is made of nonelastic high intensity airtight fabric, and cylindrical structure can efficiently use pneumatophore
Product, but it is easy to process.During air bag explosion, stress concentration on two circumference, by strengthening the intensity of circumference, prevents above and below cylinder
Air bag is broken through.The mode of explosion mouth exhaust, respectively there are one the round explosion mouth of same size, ensures it for two principal parts on air bag
The exhaust of explosion simultaneously, makes unmanned plane not turn on one's side, meanwhile, by simulation calculation and ground experiment, the buffering of single circle explosion mouth
It is with obvious effects to be better than with explosion implication capsules multiple under area.
The present invention completes the ground drop-test of more than 30 times and the flight test of more than 60 sorties altogether with amphitypy unmanned plane, examination
The equal explosion of air bag explosion mouth is tested, and unmanned plane, without rollover, rebound, unmanned plane body and airborne equipment are intact.Items experiment reaches
To the desired effect of design.
Claims (4)
1. a kind of buffer air bag being vented using explosion mouth, it is characterised in that：Air bag utricule is cylindrical, two circles of utricule
End face is principal part（1）, principal part（1）It is divided into two layers, internal layer washs a sail silk fabric using 519 bright and beautiful sail silk fabrics, outer layer lining cloth using 49603；
Utricule encloses portion（2）Material is using 519 bright and beautiful sail silk fabrics；Utricule principal part（1）Both ends of the surface center is respectively provided with a round explosion mouth exhaust.
2. the buffer air bag according to claim 1 being vented using explosion mouth, it is characterised in that：The utricule encloses portion（2）
It is equipped with aeration jet.
3. the buffer air bag according to claim 1 being vented using explosion mouth, it is characterised in that：The utricule encloses portion（2）
It is upper that fixed band is fixedly connected with by screw.
4. the buffer air bag being vented using explosion mouth according to claim 1,2 or 3, it is characterised in that：The air bag is high
Degree is determined by following formula：
In formula：H --- air bag height；
v0--- the landing speed of unmanned plane；
amax--- the maximum overload of landing of permission；
G --- acceleration of gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191545.0A CN108216659A (en) | 2016-12-21 | 2016-12-21 | The buffer air bag being vented using explosion mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191545.0A CN108216659A (en) | 2016-12-21 | 2016-12-21 | The buffer air bag being vented using explosion mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108216659A true CN108216659A (en) | 2018-06-29 |
Family
ID=62651816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611191545.0A Pending CN108216659A (en) | 2016-12-21 | 2016-12-21 | The buffer air bag being vented using explosion mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108216659A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101723093A (en) * | 2009-12-22 | 2010-06-09 | 航宇救生装备有限公司 | Landing cushion gasbag |
| CN202923891U (en) * | 2012-11-06 | 2013-05-08 | 航宇救生装备有限公司 | Landing buffer air bag |
| CN104401499A (en) * | 2014-11-25 | 2015-03-11 | 南京航空航天大学 | Landing buffering device for unmanned aerial vehicle recovery by parachute |
| CN104828248A (en) * | 2015-04-30 | 2015-08-12 | 北京空间机电研究所 | Initiative exhaustion-type buffer airbag device |
-
2016
- 2016-12-21 CN CN201611191545.0A patent/CN108216659A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101723093A (en) * | 2009-12-22 | 2010-06-09 | 航宇救生装备有限公司 | Landing cushion gasbag |
| CN202923891U (en) * | 2012-11-06 | 2013-05-08 | 航宇救生装备有限公司 | Landing buffer air bag |
| CN104401499A (en) * | 2014-11-25 | 2015-03-11 | 南京航空航天大学 | Landing buffering device for unmanned aerial vehicle recovery by parachute |
| CN104828248A (en) * | 2015-04-30 | 2015-08-12 | 北京空间机电研究所 | Initiative exhaustion-type buffer airbag device |
Non-Patent Citations (1)
| Title |
|---|
| 戈嗣诚等: "无人机回收气囊缓冲特性研究", 《南京航空航天大学学报》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
|
| RJ01 | Rejection of invention patent application after publication |