CN220809791U - Foam sandwich rib structure - Google Patents
Foam sandwich rib structure Download PDFInfo
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- CN220809791U CN220809791U CN202322810412.9U CN202322810412U CN220809791U CN 220809791 U CN220809791 U CN 220809791U CN 202322810412 U CN202322810412 U CN 202322810412U CN 220809791 U CN220809791 U CN 220809791U
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- 239000006260 foam Substances 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 45
- 210000001503 joint Anatomy 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000003733 fiber-reinforced composite Substances 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000004584 weight gain Effects 0.000 description 2
- 235000019786 weight gain Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The application belongs to the field of aircraft wing design, and relates to a foam sandwich rib structure which comprises a web plate, wherein the web plate is of a drop-shaped structure, and a main beam connecting interface and an auxiliary beam connecting interface are formed in the web plate. The main beam connecting interface and the auxiliary beam connecting interface are respectively connected with the main beam and the auxiliary beam; the web comprises a front section, a main connecting section, an auxiliary connecting section and a tail section, wherein the front section, the main connecting section, the auxiliary connecting section and the tail section all comprise rigid foam and a first layer of composite material panel, and the first layer of composite material panel is wrapped on one side of the rigid foam; the rigid foam has certain strength and lighter weight, and is convenient to process and manufacture. The first layer of composite material panel is made of fiber reinforced composite material, and the fiber reinforced composite material has the characteristics of high specific strength, high specific modulus, corrosion resistance and good durability, is light in weight, has high load bearing capacity, can provide support for the spar, and realizes load transfer between the butt joint part and the beam.
Description
Technical Field
The application belongs to the field of aircraft wing design, and particularly relates to a foam sandwich rib structure.
Background
The unmanned aerial vehicle body structure has the remarkable characteristics of light weight and high efficiency, and if the connecting joint is independently designed at the centralized butt joint positions of the connection of the wing and the fuselage, the connection of the wing and the nacelle, the connection of the wing and the auxiliary support and the like, the weight of the unmanned aerial vehicle body is increased, and the performance of the aircraft is influenced.
How to reduce the increase in weight of the aircraft when the wing is connected to the rest of the aircraft is a problem to be solved.
Disclosure of Invention
The application aims to provide a foam sandwich rib structure so as to solve the problem that the weight of a machine body is easy to increase when a wing is in butt joint with other parts of an airplane in the prior art.
The technical scheme of the application is as follows: the foam sandwich rib structure comprises a web plate, wherein the web plate is of a drop-shaped structure, and a main beam connecting interface and an auxiliary beam connecting interface are formed in the web plate; the web is wholly in a drop-shaped structure, the web comprises a front section, a main connecting section, an auxiliary connecting section and a tail section, the front section, the main connecting section, the auxiliary connecting section and the tail section all comprise rigid foam and a first layer of composite material panel, the first layer of composite material panel is wrapped on one side of the rigid foam, and the first layer of composite material panel is made of fiber reinforced composite materials.
Preferably, the main connecting section and the auxiliary connecting section are adhered with a second layer of composite material panel, and the second layer of composite material panel is adhered to the outer side of the first layer of composite material panel.
Preferably, a third layer of composite material panel is bonded to the main connection section, the third layer of composite material panel being bonded to the side of the rigid foam remote from the first layer of composite material panel.
Preferably, the main connecting section corresponds the both sides of girder connection interface and all is equipped with concentrated butt joint portion, concentrated butt joint portion is triangle-shaped structure and passes through girder connection interface symmetry, all seted up multiunit triangular hole on anterior segment, main connecting section and the vice connecting section, the inboard in every triangular hole all has wrapped up the combined material fabric with the outward flange of web and bordures.
The application relates to a foam sandwich rib structure which comprises a web plate, wherein the web plate is of a drop-shaped structure, and a main beam connecting interface and an auxiliary beam connecting interface are formed in the web plate. The main beam connecting interface and the auxiliary beam connecting interface are respectively connected with the main beam and the auxiliary beam; the web comprises a front section, a main connecting section, an auxiliary connecting section and a tail section, wherein the front section, the main connecting section, the auxiliary connecting section and the tail section all comprise rigid foam and a first layer of composite material panel, and the first layer of composite material panel is wrapped on one side of the rigid foam; the rigid foam has certain strength and lighter weight, is convenient to process and manufacture, and can avoid structural weight gain caused by independently designing the joint. The first layer of composite material panel is made of fiber reinforced composite material, and the fiber reinforced composite material has the characteristics of high specific strength, high specific modulus, corrosion resistance and good durability, is light in weight, has high load bearing capacity, can provide support for the spar, and realizes load transfer between the butt joint part and the beam.
Drawings
In order to more clearly illustrate the technical solution provided by the present application, the following description will briefly refer to the accompanying drawings. It will be apparent that the figures described below are merely some embodiments of the application.
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is a schematic view of section A-A of FIG. 1;
FIG. 3 is an enlarged view of portion C of FIG. 2;
FIG. 4 is a schematic view of section B-B of FIG. 1.
1. A main beam connecting interface; 2. an auxiliary beam connection interface; 3. wrapping the composite fabric; 4. triangular holes; 5. a rigid foam; 6. a second layer of composite material panel; 7. a first layer of composite material panel; 8. a third layer of composite material panel; 9. a web; 10. a centralized butt joint part; 11. a front section; 12. a main connection section; 13. a secondary connection section; 14. and a tail section.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
A foam sandwich rib structure is shown in fig. 1, and comprises a web plate 9, wherein the web plate 9 is of a drop-shaped structure, and a main beam connecting interface 1 and an auxiliary beam connecting interface 2 are arranged on the web plate 9. The main beam connecting interface 1 and the auxiliary beam connecting interface 2 are respectively connected with the main beam and the auxiliary beam.
The web 9 is of a drop-shaped structure as a whole, the web 9 comprises a front section 11, a main connecting section 12, a secondary connecting section 13 and a tail section 14, and the front section 11, the main connecting section 12, the secondary connecting section 13 and the tail section 14 all comprise rigid foam 5 and a first layer of composite material panel 7 (combined with fig. 3), and the first layer of composite material panel 7 is wrapped on one side of the rigid foam 5.
The rigid foam 5 has certain strength and lighter weight, is convenient to process and manufacture, and can avoid structural weight gain caused by independently designing joints. The first layer of composite material panel 7 is made of a fibre-reinforced composite material which has the characteristics of high specific strength, high specific modulus, corrosion resistance and good durability, is light in weight, has high load bearing capacity, can provide support for the spar, and realizes load transfer between the butt joint part and the beam.
With reference to fig. 2-3, the primary and secondary connection sections 12, 13 preferably have a second layer of composite panels 6 bonded thereto, the second layer of composite panels 6 being bonded to the outside of the first layer of composite panels 7. The primary and secondary connection sections 12, 13 are more loaded than would be required for the other two sections, so a two-layer composite panel is designed to further enhance the load carrying capacity of the web 9.
Preferably, the main connecting section 12 has adhered thereto a third layer of composite panel 8, the third layer of composite panel 8 being adhered to the side of the rigid foam 5 remote from the first layer of composite panel 7. The first layer of composite material panel 7, the second layer of composite material panel 6 and the third layer of composite material panel 8 are combined with the rigid foam 5 to form a foam sandwich structure, so that the strength is high, the weight is light, and the processing is convenient. The third layer of composite panels 8 can provide further reinforcing support to the connection of the main beams.
With reference to fig. 4, preferably, the two sides of the main connecting section 12 corresponding to the main beam connecting interface 1 are respectively provided with a centralized butt joint part 10, the centralized butt joint parts 10 are of triangular structures and are symmetrical through the main beam connecting interface 1, and the centralized butt joint parts 10 can be connected with the main beams to strengthen the connection strength and reduce stress concentration. The front section 11, the main connecting section 12 and the auxiliary connecting section 13 are respectively provided with a plurality of groups of triangular holes 4, the inner side of each triangular hole 4 and the outer edge of the web 9 are respectively wrapped with a composite material fabric wrapping 3, the weight of the web 9 can be effectively reduced due to the design of the triangular holes 4, and the strength of the triangular holes 4 and the outer edge of the web 9 is enhanced due to the composite material fabric wrapping 3.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
Secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
Finally: the foregoing is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the utility model, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.
Claims (4)
1. The utility model provides a foam sandwich rib structure which characterized in that: the connecting structure comprises a web plate (9), wherein the web plate (9) is of a drop-shaped structure, and a main beam connecting interface (1) and an auxiliary beam connecting interface (2) are arranged on the web plate (9); the web (9) is of a drop-shaped structure as a whole, the web (9) comprises a front section (11), a main connecting section (12), a secondary connecting section (13) and a tail section (14), the front section (11), the main connecting section (12), the secondary connecting section (13) and the tail section (14) all comprise rigid foam (5) and a first layer of composite material panel (7), the first layer of composite material panel (7) is wrapped on one side of the rigid foam (5), and the first layer of composite material panel (7) is made of fiber reinforced composite materials.
2. The foam sandwich rib structure of claim 1, wherein: the main connecting section (12) and the auxiliary connecting section (13) are bonded with a second layer of composite material panel (6), and the second layer of composite material panel (6) is bonded to the outer side of the first layer of composite material panel (7).
3. The foam sandwich rib structure of claim 1, wherein: and a third layer of composite material panel (8) is adhered to the main connecting section (12), and the third layer of composite material panel (8) is adhered to one side, far away from the first layer of composite material panel (7), of the rigid foam (5).
4. The foam sandwich rib structure of claim 1, wherein: the main connecting section (12) is corresponding to the two sides of the main beam connecting interface (1) and is provided with concentrated butt joint parts (10), the concentrated butt joint parts (10) are of triangular structures and are symmetrical through the main beam connecting interface (1), the front section (11), the main connecting section (12) and the auxiliary connecting section (13) are provided with a plurality of groups of triangular holes (4), and the inner side of each triangular hole (4) and the outer edge of the web plate (9) are wrapped with composite material fabric wrapping edges (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322810412.9U CN220809791U (en) | 2023-10-19 | 2023-10-19 | Foam sandwich rib structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322810412.9U CN220809791U (en) | 2023-10-19 | 2023-10-19 | Foam sandwich rib structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220809791U true CN220809791U (en) | 2024-04-19 |
Family
ID=90713635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322810412.9U Active CN220809791U (en) | 2023-10-19 | 2023-10-19 | Foam sandwich rib structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220809791U (en) |
-
2023
- 2023-10-19 CN CN202322810412.9U patent/CN220809791U/en active Active
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