CN107521659B - Multifunctional airfoil leading edge structure - Google Patents
Multifunctional airfoil leading edge structure Download PDFInfo
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- CN107521659B CN107521659B CN201710645290.9A CN201710645290A CN107521659B CN 107521659 B CN107521659 B CN 107521659B CN 201710645290 A CN201710645290 A CN 201710645290A CN 107521659 B CN107521659 B CN 107521659B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/36—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like adapted to receive antennas or radomes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/36—Structures adapted to reduce effects of aerodynamic or other external heating
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- Aviation & Aerospace Engineering (AREA)
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Abstract
The invention relates to an aircraft structure design, in particular to a multifunctional airfoil leading edge structure. A multi-function airfoil leading edge structure comprising: the at least two first supports are plate-shaped, the plate surfaces of the at least two first supports are parallel to each other and are arranged in parallel, and one ends of the first supports, far away from the straight edges, are provided with U-shaped grooves; the front edge skin is fixedly wrapped on the U-shaped edges of the at least two first supports; the short wave antenna is tubular, metal wires are uniformly wound on the outer surface of the short wave antenna, and the short wave antenna is detachably fixed in U-shaped grooves of at least two first supports along the direction perpendicular to the first support plate surface. According to the multifunctional airfoil leading edge structure, the short wave antenna and the leading edge structure are integrally designed, and the short wave antenna is installed in the leading edge, so that the pneumatic efficiency is improved, and the weight is reduced.
Description
Technical Field
The invention relates to an aircraft structure design, in particular to a multifunctional airfoil leading edge structure.
Background
In the aircraft structural design, the requirement of short wave antenna installation exists, and the short wave antenna is long in size and needs to be maintained. However, mounting the antenna outside the aircraft structure can adversely affect the aerodynamic characteristics of the aircraft, as well as be detrimental to the overall use of the structure and weight reduction.
Disclosure of Invention
The invention aims to provide a multifunctional airfoil leading edge structure, which at least solves at least one problem existing in the installation of the existing short-wave antenna.
The technical scheme of the invention is as follows:
a multi-function airfoil leading edge structure comprising:
the first support is plate-shaped, the plate-shaped first support is provided with a straight edge and a U-shaped edge, the straight edge is positioned at the opening end of the U-shaped edge and connected with two end points of the opening end of the U-shaped edge, the number of the first support is at least two, the plate surfaces of at least two first supports are parallel to each other and are arranged in parallel, one end of each first support, which is far away from the straight edge, is provided with a U-shaped groove, and the direction of the opening end of each U-shaped groove is opposite to the direction of the opening of the U-shaped edge of the first support;
the front edge skin is fixedly wrapped on the U-shaped edges of the at least two first supports, and two edges of the front edge skin in the opening end direction of the U-shaped edges of the first supports are flush with a plane formed by straight edges and straight edges between the at least two first supports;
the short wave antenna is tubular, metal wires are uniformly wound on the outer surface of the short wave antenna, and the short wave antenna is detachably fixed in at least two U-shaped grooves of the first support along the direction perpendicular to the plane of the first support.
Optionally, a reinforcing plate is fixedly arranged along the first support edge in the longitudinal direction, and the surface of the first support is perpendicular to the surface of the reinforcing plate;
the reinforcing plate is provided with an opening matched with the U-shaped groove at the U-shaped groove.
Optionally, the first support edge and the reinforcing plate are integrally formed members.
Optionally, the first support is provided with at least one lightening hole.
Optionally, the number of the first supports is two, and the first supports are respectively located at two end portions of the leading edge skin in the length direction.
Optionally, the multifunctional airfoil leading edge structure further comprises:
the angle piece is provided with a round hole matched with the short wave antenna, and the short wave antenna is detachably fixed in the U-shaped groove of the first support through the angle piece.
Optionally, the multifunctional airfoil leading edge structure further comprises:
the shape of the external outline of the second support is similar to that of the first support, the number of the second supports is at least two, the plate surfaces of the at least two second supports are parallel to each other and are arranged between the two first supports in parallel, one side of the second support, which is back to the U-shaped opening end, is fixedly connected with the front edge skin, the second support is provided with a mounting hole, wherein,
the short wave antenna is arranged in the mounting hole along the direction perpendicular to the second support plate surface.
Optionally, the second support and the leading edge skin are both made of composite materials and are integrally formed components.
Optionally, the number of the second supports is two.
The invention has the following effects:
according to the multifunctional airfoil leading edge structure, the short wave antenna and the leading edge structure are integrally designed, and the short wave antenna is installed in the leading edge, so that the pneumatic efficiency is improved, and the weight is reduced.
Drawings
FIG. 1 is a schematic structural view of a multi-function airfoil leading edge configuration of the present invention;
FIG. 2 is a schematic view of a first support in the multi-function airfoil leading edge configuration of the present invention;
FIG. 3 is a schematic view of the integral structure of the leading edge skin and the second support in the multi-functional airfoil leading edge structure of the present invention;
FIG. 4 is a schematic view of a corner piece of the multi-functional airfoil leading edge structure of the present invention.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The multi-function airfoil leading edge structure of the present invention is described in further detail below with reference to FIGS. 1-4.
The invention provides a multifunctional airfoil leading edge structure which can comprise a first support 1, a leading edge skin 2, a short wave antenna 3 and the like.
The first support 1 is plate-shaped, and the plate-shaped first support 1 has a straight edge and a U-shaped edge, the straight edge is located at the open end of the U-shaped edge and is connected with two end points of the open end of the U-shaped edge, so that the outer contour shape of the first support 1 is similar to the outer contour shape of the preformed front edge structure. In addition, the number of the first supports 1 is at least two, and the plate surfaces of at least two first supports 1 are parallel to each other and are arranged in parallel, which is equivalent to a framework forming a front edge structure; in addition, a U-shaped groove 11 is formed in one end, far away from the straight edge, of the first support 1, and the opening end direction of the U-shaped groove 11 is opposite to the opening direction of the U-shaped edge of the first support 1.
The front edge skin 2 is fixedly wrapped on the U-shaped edges of the at least two first supports 1, and two edges of the front edge skin 2 in the opening end direction of the U-shaped edges of the first supports 1 are flush with a plane formed by straight edges and straight edges between the at least two first supports 1, so that a front edge structure is basically formed; wherein the leading edge skin 2 may be fixed to the first support 1 in a number of suitable ways, such as riveting, welding, etc.
The short wave antenna 3 is tubular, and metal wires are uniformly wound on the outer surface of the short wave antenna; the short wave antenna 3 is detachably fixed in the U-shaped grooves 11 of the at least two first supports 1 along the direction vertical to the plate surfaces of the first supports 1; and, according to the setting position of the U-shaped groove 11 of the first support 1, the short wave antenna 3 is basically positioned at the front position of the front edge structure, so that the short wave antenna 3 has better use effect.
According to the multifunctional airfoil leading edge structure, the short wave antenna and the leading edge structure are integrally designed, and the short wave antenna is installed in the leading edge, so that the pneumatic efficiency is improved, and the weight is reduced.
It should be noted that the number of the first support seats 1 may be set as required, and in this embodiment, it is preferable that the number of the first support seats 1 is two, and the two first support seats are respectively located at two end portions of the leading edge skin 2 in the length direction.
Further, in the multifunctional airfoil leading edge structure, the reinforcing plate 13 is fixedly arranged along the side length direction of the first support 1, and the plate surface of the first support 1 is perpendicular to the plate surface of the reinforcing plate 13; the first support 1 is fixedly connected with the leading edge skin 2 through a reinforcing plate 13, so that the structural stability is stronger. In the present embodiment, the first bracket 1 and the reinforcing plate 13 are preferably formed as an integral member. In addition, in order to facilitate the installation of the short wave antenna 3 at the U-shaped groove 11, the reinforcing plate 13 has an opening at the U-shaped groove 11 that is adapted to the U-shaped groove 11.
Furthermore, in the multifunctional airfoil leading edge structure, the first support 1 is provided with at least one lightening hole 14, so that the lightening effect is achieved, and meanwhile, the installation of other devices in the leading edge structure is facilitated.
In the multifunctional airfoil leading edge structure, the short wave antenna 3 can be detachably fixed in the U-shaped groove 11 in various suitable modes; in this embodiment, still include fillet 4, set up the round hole with short wave antenna 3 looks adaptation on the fillet 4, fillet 4 passes through bolted connection with first support 1 to make short wave antenna 3 fix in the U-shaped recess 11 of first support 1 through fillet 4 detachably.
The multi-function airfoil leading edge structure of the present invention may further comprise a second support 5.
The second support 5 is plate-shaped, the shape of the outer contour of the second support is similar to that of the first support 1, and the outer contour of the second support is slightly smaller than that of the first support 1; the number of the second supports 5 is at least two, the plate surfaces of the at least two second supports 5 are parallel to each other and are arranged between the two first supports 1 in parallel, and one side, back to the U-shaped opening end, of each second support 5 is fixedly connected with the front edge skin 2. In addition, the second support 5 is provided with a mounting hole 51, the short wave antenna 3 is arranged in the mounting hole 51 along the direction perpendicular to the surface of the second support 5, and the mounting hole 51 plays a role in fixing and limiting.
Also, the number of the second supports 5 may be set appropriately according to the needs, and in this embodiment, it is preferable that the number of the second supports 5 is two and is uniformly distributed between the two first supports 1. Furthermore, it is further preferable that the second bracket 5 and the leading edge skin 2 are both made of composite materials and are integrally molded members, so that the structural strength is higher.
When the multifunctional airfoil leading edge structure is installed, the short wave antenna 3 sequentially penetrates through the installation holes 51 of the two second supports 5 and is installed on the leading edge skin 2; the front edge skin 2 is connected with the two first supports 1 through bolts, and two ends of the short wave antenna 3 are respectively clamped into the U-shaped grooves 11 of the two first supports 1; and finally, fixing the short-wave antenna 3 and the first support 1 through an angle piece 4 to finish installation.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A multi-function airfoil leading edge structure, comprising:
the first support (1) is plate-shaped, the plate-shaped first support (1) is provided with a straight edge and a U-shaped edge, the straight edge is positioned at the opening end of the U-shaped edge and connected with two end points of the opening end of the U-shaped edge, the number of the first support (1) is at least two, the plate surfaces of at least two first supports (1) are parallel to each other and are arranged in parallel, one end of the first support (1) far away from the straight edge is provided with a U-shaped groove (11), and the opening direction of the U-shaped groove (11) is opposite to the opening direction of the U-shaped edge of the first support (1);
the front edge skin (2) is fixedly wrapped on the U-shaped edges of the at least two first supports (1), and two edges of the front edge skin (2) in the direction of the opening ends of the U-shaped edges of the first supports (1) are flush with a plane formed by straight edges and straight edges between the at least two first supports (1);
the short-wave antenna (3) is tubular, metal wires are uniformly wound on the outer surface of the short-wave antenna, and the short-wave antenna (3) is detachably fixed in U-shaped grooves (11) of at least two first supports (1) along the direction perpendicular to the plate surface of the first supports (1);
further comprising:
the outer contour shape of the second support saddle (5) is similar to that of the first support saddle (1), the number of the second support saddles (5) is at least two, the plate surfaces of at least two second support saddles (5) are parallel to each other and are arranged between the two first support saddles (1) in parallel, one side of each second support saddle (5) back to the U-shaped opening end is fixedly connected with the front edge skin (2), the second support saddle (5) is provided with a mounting hole (51), wherein,
the short wave antenna (3) is arranged in the mounting hole (51) along the direction perpendicular to the second support (5) plate surface.
2. The multifunctional airfoil leading edge structure according to claim 1, characterized in that a reinforcing plate (13) is fixedly arranged along the side length direction of the first support (1), and the surface of the first support (1) is perpendicular to the surface of the reinforcing plate (13);
the reinforcing plate (13) has an opening at the U-shaped groove (11) that is adapted to the U-shaped groove (11).
3. The multifunctional airfoil leading edge structure according to claim 2, characterized in that the first support (1) and the stiffener plate (13) are an integral member.
4. The multifunctional airfoil leading edge structure according to claim 3, characterized in that the first support (1) is provided with at least one lightening hole (14).
5. The multifunctional airfoil leading edge structure according to any one of claims 1 to 4, characterized in that the number of the first supports (1) is two, and the two first supports are respectively positioned at two ends of the leading edge skin (2) in the length direction.
6. The multi-function airfoil leading edge structure of claim 5, further comprising:
the corner piece (4), seted up on the corner piece (4) with the round hole of short wave antenna (3) looks adaptation, short wave antenna (3) pass through corner piece (4) detachably is fixed in U-shaped recess (11) of first support (1).
7. The multifunctional airfoil leading edge structure according to claim 1, characterized in that the second support (5) and the leading edge skin (2) are both made of composite material and are integrally formed members.
8. The multifunctional airfoil leading edge structure according to claim 7, characterized in that the number of the second pedestals (5) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710645290.9A CN107521659B (en) | 2017-08-01 | 2017-08-01 | Multifunctional airfoil leading edge structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710645290.9A CN107521659B (en) | 2017-08-01 | 2017-08-01 | Multifunctional airfoil leading edge structure |
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| CN107521659A CN107521659A (en) | 2017-12-29 |
| CN107521659B true CN107521659B (en) | 2020-07-07 |
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| CN201710645290.9A Active CN107521659B (en) | 2017-08-01 | 2017-08-01 | Multifunctional airfoil leading edge structure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305323A (en) * | 2018-09-25 | 2019-02-05 | 陕西飞机工业（集团）有限公司 | A kind of dorsal fin carrier aircraft and the antenna integrated configuration of task system |
| CN109625245A (en) * | 2018-11-02 | 2019-04-16 | 中国航空工业集团公司西安飞机设计研究所 | A kind of general-purpose aircraft composite material rudder and production method |
| CN110299602B (en) * | 2019-06-24 | 2022-03-15 | 陕西飞机工业（集团）有限公司 | Mounting structure of hidden short wave antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2242200A (en) * | 1938-12-01 | 1941-05-13 | Bell Aircraft Corp | Airplane structure |
| CN201472666U (en) * | 2009-06-04 | 2010-05-19 | 中国航空工业集团公司西安飞机设计研究所 | Airplane slat anti-icing extension tube supporting structure |
| CN102263317A (en) * | 2010-05-25 | 2011-11-30 | 中国商用飞机有限责任公司 | Airplane vertical tail front edge parallel feed slot antenna |
| US8354968B1 (en) * | 2010-04-08 | 2013-01-15 | Paulsen Lee M | Boxed feed for improved high frequency (HF) shunt antenna performance |
| CN106697258A (en) * | 2016-11-28 | 2017-05-24 | 西北工业大学 | Leading edge capable of improving bird impact resistance of airplane |
-
2017
- 2017-08-01 CN CN201710645290.9A patent/CN107521659B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2242200A (en) * | 1938-12-01 | 1941-05-13 | Bell Aircraft Corp | Airplane structure |
| CN201472666U (en) * | 2009-06-04 | 2010-05-19 | 中国航空工业集团公司西安飞机设计研究所 | Airplane slat anti-icing extension tube supporting structure |
| US8354968B1 (en) * | 2010-04-08 | 2013-01-15 | Paulsen Lee M | Boxed feed for improved high frequency (HF) shunt antenna performance |
| CN102263317A (en) * | 2010-05-25 | 2011-11-30 | 中国商用飞机有限责任公司 | Airplane vertical tail front edge parallel feed slot antenna |
| CN106697258A (en) * | 2016-11-28 | 2017-05-24 | 西北工业大学 | Leading edge capable of improving bird impact resistance of airplane |
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| CN107521659A (en) | 2017-12-29 |
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