CN204250352U - The anti-bird of a kind of plane nose hits turnup structure - Google Patents
The anti-bird of a kind of plane nose hits turnup structure Download PDFInfo
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- CN204250352U CN204250352U CN201420588332.1U CN201420588332U CN204250352U CN 204250352 U CN204250352 U CN 204250352U CN 201420588332 U CN201420588332 U CN 201420588332U CN 204250352 U CN204250352 U CN 204250352U
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- bird
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Abstract
The utility model relates to the anti-bird of a kind of plane nose and hits turnup structure, and this structure, by changing the flange direction of head crossbeam skeleton and covering connection location, reaches the design objective that handpiece structure does not penetrate.This structure comprises covering, the crossbeam be connected with covering, and crossbeam is connected with covering by flange, and the direction of flange is forward, and namely flange direction is consistent with vector.Use this structure to meet bird awing when hitting, handpiece structure can not cause outbreak-crash, effectively ensures the personal safety of aviator.
Description
Technical field
The utility model relates to a kind of bird strike resistance of airplane and hits structure, the crossbeam turnup structure that the anti-bird of especially a kind of plane nose is hit.
Background technology
Aircraft Bird-Impact accident has been classified as " A " class aviation disaster by Federation Aeronautic International, and aircaft configuration, once experience bird is hit, will cause serious threat to flight safety, and cause serious consequence.Add up with regard to the bird accident of hitting of military-civil aircraft in recent years respectively below.
, there is bird and hit accident 619 times in military secret aspect: according to the statistics of US military, caused 7 military aircraft chaufeurs dead altogether, 14 airplanes crash altogether between 1970 ~ nineteen eighty-two of United States Air Force.It is perfect not that my army hits mechanism in casualty statistics bird, and the pertinent data display found at present, from nineteen fifty-seven to nineteen eighty-two, my army at least also there occurs 50 routine birds and hits accident.
Civil aircraft aspect: the statistical information according to FAA shows, in 13 years of nineteen ninety by 2002, the civil aircraft bird accident of hitting counted on reaches more than 46000.And estimate according to FAA, this is only that whole civil aircraft bird hits 20% of accident.The direct economic loss 3.45 hundred million dollars every year on average that 46000 bird accidents of hitting of adding up cause, indirect economic loss 1.44 hundred million dollars every year on average.And if by the hypothesis of U.S. FAA, the bird accident of hitting counted on account for that total bird hits accident 20%, bird hits the direct economic loss caused will reach 17.25 hundred million dollars every year, and indirect economic loss is average annual 7.2 hundred million dollars.
Along with the development of airplane design technology, make the flying speed of aircraft itself in continuous increase, flight noise, in continuous reduction, is added people in recent years and is day by day focused on the protection to natural environment, and factors makes bird hit number of times to present the trend increased year by year.This just has higher requirement to the anti-bird impact design of aircaft configuration, and as one of the Main Means of anti-bird impact design, optimal design should obtain enough attention and development.
Designing requirement: specify according to CCAR the 25th (CCAR-25): when the shock that the structure such as plane nose, the leading edge of a wing is subject to 1.8 kilograms (4 pounds) heavy bird causes structural damage, aircraft must can complete this flight; In addition, the design of tail structure must ensure that aircraft is after bumping against with the bird in 3.6 kilograms (8 pounds), still can continue safe flight and landing.
Summary of the invention
The purpose of this utility model is to provide a kind of plane nose crossbeam skeleton of improvement and the connection structure of covering to solve the problem easily causing outbreak-crash in existing structure.
In aircaft configuration anti-bird impact design, in order to ensure the personal safety of aviator, can not there is outbreak-crash when meeting with bird and hitting in handpiece structure, the utility model, by changing the flange direction of head crossbeam skeleton and covering connection location, reaches the design objective that handpiece structure does not penetrate.
When bird body clashes into crossbeam frame position, first can form a pit at the anterior covering place of skeleton, and support the existence on border due to this pit rear cross, thus hamper bird body along skin-surface and normally slide backward, cause bird physical efficiency to build up in pit.Inner at pit, covering then can bear the pressure perpendicular to itself, and this pressure can increase gradually due to the accumulation of bird physical efficiency, finally causes covering to be sheared destruction in skeleton forward position, causes bird body to puncture structure.
By crossbeam and flange direction by changing into forward backward, see Fig. 1, the force way that crossbeam position can be met with when bird be hit is cut from covering becomes crossbeam and covering junction by curved, reaches the object alleviating covering and damage, reaches the design objective that handpiece structure does not penetrate.
In order to reach foregoing invention object, the technical solution of the utility model is achieved in that this structure comprises covering, the crossbeam be connected with covering, and crossbeam is connected with covering by flange, and the direction of flange is forward, and namely flange direction is consistent with vector.
The beneficial effects of the utility model are: use this structure to meet bird awing when hitting, handpiece structure can not cause outbreak-crash, effectively ensures the personal safety of aviator.
Accompanying drawing explanation
Below in conjunction with drawings and Examples to the further detailed description of the utility model.In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, the accompanying drawing (except prior art figure) that the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, in the following detailed description, above-mentioned purpose of the present utility model, feature and advantage are by apparent; And under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is turnup structure schematic diagram of the present utility model
Fig. 2-1 ~ Fig. 2-4 are turnup structures of the prior art meet bird hit after structural failure and bird body motion schematic diagram
Fig. 3-1 ~ Fig. 3-3 turnup structure of the present utility model meet bird hit after structural failure and bird body motion schematic diagram
Numeral and the corresponding component title represented by letter in figure:
1 covering
2 crossbeams
3 flange
4 bird bodies
(arrow on bird body is bird body sense of motion)
Detailed description of the invention
Below, preferred embodiment of the present utility model is described in detail with reference to accompanying drawing.It should be noted that before this, the term used in this specification and claims book or word can not limited interpretation be implication in common implication or dictionary, and should based in order to illustrate that principle that its practical hair person of good sense can carry out suitably definition to the concept of term is interpreted as meeting implication and the concept of the utility model technological thought in the best way.Thereupon, the structure represented in embodiment described in this specification sheets and accompanying drawing is one of the utility model most preferred embodiment, technological thought of the present utility model can not be represented completely, therefore should be understood that the various equivalent and variation that may to exist for the utility model and can carry out replacing.
In fig. 2, this structure comprises covering 1, the crossbeam 2 be connected with covering 1, and crossbeam 2 is connected with covering 1 by flange 3, and the direction of flange 3 is forward, and namely flange direction is consistent with vector.
Obviously can find out that have employed turnup structure of the present utility model bird body 4 when meeting bird and hitting can leave away (Fig. 3-3) along covering 1 surface by Fig. 2-1 ~ Fig. 2-4 and the contrast of Fig. 3-1 ~ Fig. 3-3, outbreak-crash as in Figure 2-4 can not be caused, effectively ensure the personal safety of aviator.
It should be noted that, although above-mentioned explanation illustrate and describes some preferred embodiments of the present utility model, but as previously mentioned, be to be understood that the utility model is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and and can in utility model contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from spirit and scope of the present utility model, then all should in the protection domain of the utility model claims.
Claims (1)
1. the anti-bird of plane nose hits turnup structure, comprise covering (1), the crossbeam (2) be connected with covering (2), it is characterized in that: crossbeam (2) is connected with covering (1) by flange (3), the direction of flange (3) is forward, and namely flange (3) direction is consistent with vector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588332.1U CN204250352U (en) | 2014-10-11 | 2014-10-11 | The anti-bird of a kind of plane nose hits turnup structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588332.1U CN204250352U (en) | 2014-10-11 | 2014-10-11 | The anti-bird of a kind of plane nose hits turnup structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204250352U true CN204250352U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420588332.1U Active CN204250352U (en) | 2014-10-11 | 2014-10-11 | The anti-bird of a kind of plane nose hits turnup structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204250352U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109710988A (en) * | 2018-12-04 | 2019-05-03 | 中国航空工业集团公司西安飞机设计研究所 | A kind of blended wing-body aircraft girder location determining method |
| CN111846197A (en) * | 2019-04-29 | 2020-10-30 | 空中客车德国运营有限责任公司 | Leading edge component for an aircraft |
-
2014
- 2014-10-11 CN CN201420588332.1U patent/CN204250352U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109710988A (en) * | 2018-12-04 | 2019-05-03 | 中国航空工业集团公司西安飞机设计研究所 | A kind of blended wing-body aircraft girder location determining method |
| CN111846197A (en) * | 2019-04-29 | 2020-10-30 | 空中客车德国运营有限责任公司 | Leading edge component for an aircraft |
| CN111846197B (en) * | 2019-04-29 | 2024-06-04 | 空中客车德国运营有限责任公司 | Leading edge component for aircraft |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |