CN204250350U - A kind of anti-bird of aircraft leading edge arranging monocline plate hits structure - Google Patents
A kind of anti-bird of aircraft leading edge arranging monocline plate hits structure Download PDFInfo
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- CN204250350U CN204250350U CN201420588230.XU CN201420588230U CN204250350U CN 204250350 U CN204250350 U CN 204250350U CN 201420588230 U CN201420588230 U CN 201420588230U CN 204250350 U CN204250350 U CN 204250350U
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- bird
- leading edge
- axle beam
- monocline
- monocline plate
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Abstract
The utility model relates to a kind of anti-bird of aircraft leading edge arranging monocline plate and hits structure; this structure by increasing monocline plate between skins front edges and front-axle beam; monocline plate and course angle are 30 degree; remaining most of energy after bird body penetrates skins front edges is absorbed in this; again front beam structure is clashed into after preventing bird body from penetrating covering; effectively protect front-axle beam, make leading edge structure meet anti-bird impact design requirement.This structure comprises skins front edges, front-axle beam, is arranged on the rib on front-axle beam, between skins front edges and front-axle beam, be also provided with monocline plate.Angle a between monocline plate and course is 30 degree.Use this structure to meet bird awing when hitting, structural damage is less, can not cause comparatively macrolesion, effectively ensure flight safety to front beam structure.
Description
Technical field
The utility model relates to a kind of bird strike resistance of airplane and hits structure, and the anti-bird of especially a kind of aircraft wing leading edge, empennage leading edge hits structure.
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.
Utility model content
The purpose of this utility model is to provide a kind of aircraft wing leading edge of improvement, the anti-bird of empennage leading edge is hit structure and meets bird and hit to solve existing structure and easily cause the problem compared with macrolesion to front beam structure afterwards.
After aircraft wing leading edge, empennage leading edge suffer birdstrike, skins front edges cannot absorb the energy that bird body clashes into, bird body generally all can penetrate skins front edges and directly clash into front beam structure, comparatively macrolesion is caused to front beam structure, this will inevitably threaten the flight safety of aircraft, does not meet anti-bird impact design requirement.Particular content of the present utility model is: between skins front edges and front-axle beam, increase monocline plate; monocline plate and course angle are 30 degree; remaining most of energy after bird body penetrates skins front edges is absorbed in this; again front beam structure is clashed into after preventing bird body from penetrating covering; reach the object of protection front-axle beam, make leading edge structure meet anti-bird impact design requirement.
In order to reach foregoing invention object, the technical solution of the utility model is achieved in that this structure comprises skins front edges, and front-axle beam is arranged on the rib on front-axle beam, between skins front edges and front-axle beam, be also provided with monocline plate.Angle a between monocline plate and course is 30 degree.
The beneficial effects of the utility model are: use this structure to meet bird awing when hitting, leading edge structure damage is less, can not cause comparatively macrolesion, effectively ensure flight safety to front beam structure.
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 aircraft wing leading edge of the present utility model, empennage leading edge structure schematic diagram
Fig. 2-1 ~ Fig. 2-3 is aircraft wing leading edges of the prior art, empennage leading edge structure meet bird hit after structural failure and bird body motion schematic diagram
Fig. 3-1 ~ Fig. 3-3 aircraft wing leading edge of the present utility model, empennage leading edge structure meet bird hit after structural failure and bird body motion schematic diagram
Numeral and the corresponding component title represented by letter in figure:
1 skins front edges
2 front-axle beams
3 monocline plates
4 bird bodies
(arrow on bird body is bird body sense of motion)
5 ribs
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.
As shown in Fig. 1, Fig. 3-1, this structure comprises skins front edges 1 (skins front edges 1 in Fig. 1 is not shown), and front-axle beam 2, is arranged on the rib 5 on front-axle beam 2, between skins front edges 1 and front-axle beam 2, is also provided with monocline plate 3.Angle a between monocline plate 3 and course is 30 degree.
Obviously can find out that have employed the later leading edge of a wing of monocline plate 3, the empennage leading edge structure bird body 4 when meeting bird and hitting that adds of the present utility model can leave away (Fig. 3-3) along monocline plate 3 surface by Fig. 2-1 ~ Fig. 2-3 and the contrast of Fig. 3-1 ~ Fig. 3-3, the outbreak-crash to front-axle beam 2 as Figure 2-3 can not be caused, effectively ensure flight safety.
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 (2)
1. the anti-bird of aircraft leading edge arranging monocline plate hits structure, comprise skins front edges (1), front-axle beam (2), be arranged on the rib (5) on front-axle beam (2), it is characterized in that: between skins front edges (1) and front-axle beam (2), be also provided with monocline plate (3).
2. a kind of anti-bird of aircraft leading edge arranging monocline plate according to claim 1 hits structure, it is characterized in that: the angle a between monocline plate (3) and course is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588230.XU CN204250350U (en) | 2014-10-11 | 2014-10-11 | A kind of anti-bird of aircraft leading edge arranging monocline plate hits structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588230.XU CN204250350U (en) | 2014-10-11 | 2014-10-11 | A kind of anti-bird of aircraft leading edge arranging monocline plate hits structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204250350U true CN204250350U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420588230.XU Active CN204250350U (en) | 2014-10-11 | 2014-10-11 | A kind of anti-bird of aircraft leading edge arranging monocline plate hits structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986003A (en) * | 2017-03-15 | 2017-07-28 | 西北工业大学 | A kind of anti-bird for having monocline plate knocks tail nose of wing away |
| CN109572996A (en) * | 2018-12-04 | 2019-04-05 | 中国航空工业集团公司西安飞机设计研究所 | It is a kind of consider temperature change the anti-bird of empennage hit additional covering leading edge structure |
| 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 |
| CN112407244A (en) * | 2020-11-27 | 2021-02-26 | 中国商用飞机有限责任公司 | Aircraft leading edge assembly |
| CN114248907A (en) * | 2020-09-22 | 2022-03-29 | 中国航发商用航空发动机有限责任公司 | Inlet part of aircraft engine nacelle and aircraft engine nacelle |
| CN114248907B (en) * | 2020-09-22 | 2024-05-28 | 中国航发商用航空发动机有限责任公司 | Inlet portion of an aircraft nacelle and an aircraft nacelle |
-
2014
- 2014-10-11 CN CN201420588230.XU patent/CN204250350U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986003A (en) * | 2017-03-15 | 2017-07-28 | 西北工业大学 | A kind of anti-bird for having monocline plate knocks tail nose of wing away |
| CN106986003B (en) * | 2017-03-15 | 2019-09-24 | 西北工业大学 | A kind of anti-bird having monocline plate knocks tail nose of wing away |
| CN109572996A (en) * | 2018-12-04 | 2019-04-05 | 中国航空工业集团公司西安飞机设计研究所 | It is a kind of consider temperature change the anti-bird of empennage hit additional covering leading edge structure |
| 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 |
| CN114248907A (en) * | 2020-09-22 | 2022-03-29 | 中国航发商用航空发动机有限责任公司 | Inlet part of aircraft engine nacelle and aircraft engine nacelle |
| CN114248907B (en) * | 2020-09-22 | 2024-05-28 | 中国航发商用航空发动机有限责任公司 | Inlet portion of an aircraft nacelle and an aircraft nacelle |
| CN112407244A (en) * | 2020-11-27 | 2021-02-26 | 中国商用飞机有限责任公司 | Aircraft leading edge assembly |
| CN112407244B (en) * | 2020-11-27 | 2022-05-24 | 中国商用飞机有限责任公司 | Aircraft leading edge assembly |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |