CN205429161U - Radome sandwich structure - Google Patents
Radome sandwich structure Download PDFInfo
- Publication number
- CN205429161U CN205429161U CN201521075919.3U CN201521075919U CN205429161U CN 205429161 U CN205429161 U CN 205429161U CN 201521075919 U CN201521075919 U CN 201521075919U CN 205429161 U CN205429161 U CN 205429161U
- Authority
- CN
- China
- Prior art keywords
- foamed core
- sandwich
- bundles
- sandwich structure
- glass fibres
- 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.)
- Active
Links
Landscapes
- Details Of Aerials (AREA)
Abstract
The utility model provides a radome sandwich structure, includes foamed core and the covering that is located both ends about the foamed core, and covering and foamed core pass through the bonding agent and bond and form sandwich structure, are equipped with vertical through -hole at the sandwich structure intermediate position, and the through -hole runs through covering and foamed core, through -hole both ends little outer big bell mouth in being, be equipped with bundles of glass fibres in the through -hole, glue through solidification between the bundles of glass fibres and between bundles of glass fibres and the sandwich structure and be connected, bundles of glass fibres suits in port department and bell mouth with the combination shape that solidification was glued at least. The utility model provides a radome sandwich structure uses bundles of glass fibres with covering and foamed core through connection, glues fixedly with solidification, has solved the problem of foamed sandwich structure " weak bonding ", and bundles of glass fibres can normally transmit covering and foamed core's stress, and bundles of glass fibres itself also can bear shear force and tensile stress, has strengthened the rigidity and the intensity of structure by a wide margin.
Description
Technical field
The present invention relates to a kind of sandwich, be specifically related to a kind of radome sandwich.
Background technology
In recent years, woven foam sandwich composite material structure is widely used at aviation field.In foamed sandwich structure, use low-density sandwich material can to increase substantially rigidity and the intensity of structure, reach the effect of loss of weight and enhancing on the premise of weight increases seldom.Additionally, for the functor with wave transparent requirement this for radome, foam core is compared honeycomb sandwich construction due to its homogeneity and is had more excellent wave transparent performance, and foamed sandwich structure is successfully applied in part radome.
Foamed sandwich structure is mainly considered to three factors: eyelid covering, sandwich layer and eyelid covering are bonding with sandwich layer.Eyelid covering undertakes tension and compressive stress, and its strength and stiffness are required height；Sandwich layer mainly undertakes shearing；And the bonding agent of bonding eyelid covering and sandwich layer should possess certain adhesive strength, stretching that normal delivery eyelid covering and sandwich layer are subject to and shear stress.One simple principle is exactly the shear strength that the adhesive strength of bonding agent is not less than foamed core.
At present, the defect that foamed sandwich structure is easiest to occur is " weak bonding " between eyelid covering with foamed core, and this situation can not be detected by normal NDI method.If there is " weak bonding " in radome, the easy unsticking in interface between eyelid covering and foamed core when bearing aerodynamic loading, cause structural failure.
Summary of the invention
For the problems referred to above, the utility model proposes the radome sandwich of a kind of enhancement mode, efficiently solve the structural failure destruction that " weak bonding " phenomenon of foamed sandwich structure causes, rigidity and the intensity of structure are greatly enhanced so that it is meet the requirement of strength and stiffness under aerodynamic loading, inertial load, acceleration load and vibratory shock load effect.
For solving the problems referred to above, design of the present utility model is: a kind of radome sandwich, including foamed core and the eyelid covering being positioned at the upper and lower two ends of foamed core, eyelid covering passes through bonding agent bonding formation sandwich with foamed core, it is provided with vertical through holes in sandwich centre position, through hole runs through eyelid covering and foamed core, and described through hole two ends are inner small and outside big bellmouth；It is provided with glass fiber bundle in through-holes, is connected by solidification glue between glass fiber bundle and between glass fiber bundle with sandwich；The combined shaped of glass fiber bundle and solidification glue at least adapts with bellmouth in port.After solidification gelling is solid, shrinking, tension eyelid covering and foamed core, fixed effect is more preferable.The glass fiber bundle being located in sandwich can be by the stress normal delivery of eyelid covering and foamed core, and glass fiber bundle itself also can bear shearing and tension, and rigidity and the intensity of structure have been greatly enhanced, it is to avoid the phenomenon of " weak bonding " occur.
Preferably, described bellmouth is arranged on eyelid covering.The glass fiber bundle being located in through hole runs through eyelid covering and foamed core, and is connected by solidification glue and foamed core.
Preferably, described bellmouth is arranged on eyelid covering and foamed core.The glass fiber bundle being located in through hole runs through eyelid covering and foamed core, and is connected by solidification glue and foamed core.
Preferably, a diameter of φ 8mm of described glass fiber bundle, glass fiber bundle fills up through hole with solidification glue combined shaped, adapts with the thickness of eyelid covering and foamed core.
Preferably, the described distance between glass fiber bundle is 40mm, limits glass fiber bundle and solidification glue ratio in through-holes, thus control that glass fibre can bear bear shearing and tension, meet process requirements.
Beneficial effect: a kind of radome sandwich that the utility model proposes, use glass fiber bundle to be run through with foamed core by eyelid covering to be connected, fix with solidification glue, the problem solving " weak bonding " of foamed sandwich structure, glass fiber bundle can be by the stress normal delivery of eyelid covering and foamed core, and glass fiber bundle itself also can bear shearing and tension, rigidity and the intensity of structure are greatly enhanced.
Accompanying drawing explanation
Fig. 1 is sandwich schematic diagram；
Fig. 2 is clamping tooling pressing clip Rotating fields schematic diagram；
Wherein, 1, eyelid covering, 2, foamed core, 3, through hole, 4, glass fiber bundle, 5, clamping tooling, 6, sandwich.
Detailed description of the invention
A kind of radome sandwich, as shown in Figure 1, including foamed core 2 and the eyelid covering 1 being positioned at foamed core about 2 two ends, eyelid covering 1 passes through bonding agent bonding formation sandwich 6 with foamed core 2, it is provided with vertical through holes 3 in sandwich 6 centre position, through hole 3 runs through eyelid covering 1 and foamed core 2, and described through hole 1 two ends are inner small and outside big bellmouth, and described bellmouth is arranged on eyelid covering 1；It is provided with glass fiber bundle 4 in through-holes, a diameter of φ 8mm of glass fiber bundle 4, it is connected by solidification glue between glass fiber bundle 4 and between glass fiber bundle 4 with sandwich 6, the distance between glass fiber bundle is 40mm；The combined shaped of glass fiber bundle 4 and solidification glue at least adapts with bellmouth in port.Solidification glue is used to be tamped in the gap in through hole 3, the solid after-contraction of solidification gelling, and strain eyelid covering 1 and foamed core 2, fixed effect is more preferable.Glass fiber bundle 4 meeting being located in sandwich 6 is by the stress normal delivery of eyelid covering 1 and foamed core 2, and glass fiber bundle 4 itself also can bear shearing and tension, and rigidity and the intensity of sandwich have been greatly enhanced, it is to avoid the phenomenon of " weak bonding " occur.
As in figure 2 it is shown, after being tamped by through hole 3 with solidification glue, use clamping tooling 5 compress testpieces and solidify.
This use is novel can apply in existing and later many types of radome is developed.
Claims (5)
1. a radome sandwich, including foamed core and the eyelid covering being positioned at the upper and lower two ends of foamed core, eyelid covering passes through bonding agent bonding formation sandwich with foamed core, it is characterized in that: be provided with vertical through holes in sandwich centre position, through hole runs through eyelid covering and foamed core, and described through hole two ends are inner small and outside big bellmouth；It is provided with glass fiber bundle in through-holes, is connected by solidification glue between glass fiber bundle and between glass fiber bundle with sandwich；The combined shaped of fibre bundle and solidification glue at least adapts with bellmouth in port.
2. according to the radome sandwich described in claim 1, it is characterised in that: described bellmouth is arranged on eyelid covering.
3. according to the radome sandwich described in claim 1, it is characterised in that: described bellmouth is arranged on eyelid covering and foamed core.
4. according to the radome sandwich described in Claims 2 or 3, it is characterised in that: a diameter of φ 8mm of described glass fiber bundle.
5. according to the radome sandwich described in claim 4, it is characterised in that: the described distance between glass fiber bundle is 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075919.3U CN205429161U (en) | 2015-12-22 | 2015-12-22 | Radome sandwich structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075919.3U CN205429161U (en) | 2015-12-22 | 2015-12-22 | Radome sandwich structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205429161U true CN205429161U (en) | 2016-08-03 |
Family
ID=56537861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521075919.3U Active CN205429161U (en) | 2015-12-22 | 2015-12-22 | Radome sandwich structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205429161U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387874A (en) * | 2018-01-26 | 2018-08-10 | 合肥驼峰电子科技发展有限公司 | A kind of millimetre-wave radar protective cover using sandwich |
| CN112373674A (en) * | 2020-11-19 | 2021-02-19 | 航天彩虹无人机股份有限公司 | Sensor unmanned aerial vehicle's wing connection structure, wing and unmanned aerial vehicle |
| CN112701466A (en) * | 2020-12-24 | 2021-04-23 | 中国航空制造技术研究院 | Sandwich structure airborne radome with water leakage holes and preparation method thereof |
| CN113715418A (en) * | 2021-09-07 | 2021-11-30 | 常州市新创智能科技有限公司 | Foam sandwich composite board and forming process thereof |
| CN113823908A (en) * | 2021-05-19 | 2021-12-21 | 上海阿莱德实业股份有限公司 | Low-cost 5G antenna housing and sealing method and preparation method thereof |
-
2015
- 2015-12-22 CN CN201521075919.3U patent/CN205429161U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387874A (en) * | 2018-01-26 | 2018-08-10 | 合肥驼峰电子科技发展有限公司 | A kind of millimetre-wave radar protective cover using sandwich |
| CN112373674A (en) * | 2020-11-19 | 2021-02-19 | 航天彩虹无人机股份有限公司 | Sensor unmanned aerial vehicle's wing connection structure, wing and unmanned aerial vehicle |
| CN112701466A (en) * | 2020-12-24 | 2021-04-23 | 中国航空制造技术研究院 | Sandwich structure airborne radome with water leakage holes and preparation method thereof |
| CN113823908A (en) * | 2021-05-19 | 2021-12-21 | 上海阿莱德实业股份有限公司 | Low-cost 5G antenna housing and sealing method and preparation method thereof |
| CN113715418A (en) * | 2021-09-07 | 2021-11-30 | 常州市新创智能科技有限公司 | Foam sandwich composite board and forming process thereof |
| CN113715418B (en) * | 2021-09-07 | 2023-02-24 | 常州市新创智能科技有限公司 | Foam sandwich composite board and forming process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205429161U (en) | Radome sandwich structure | |
| Sun et al. | Three-point bending properties of carbon fiber/honeycomb sandwich panels with short-fiber tissue and carbon-fiber belt interfacial toughening at different loading rate | |
| CN103661918B (en) | The composite airplane wings of bonding | |
| US9863258B2 (en) | Method of forming a structural connection between a spar cap and a fairing for a wind turbine blade | |
| US20180223800A1 (en) | Triaxial fiber-reinforced composite laminate | |
| CN105392620A (en) | Stiffened composite panels and method of their manufacture | |
| JP2018527265A (en) | Composite sandwich structure | |
| CN105015626B (en) | A kind of preparation method of carbon fiber automotive couplers | |
| CN103448338B (en) | Metal plate/fiber mixed reinforced type sandwich plate | |
| JP6128597B2 (en) | Reinforcement structure and reinforcement method for concrete structures | |
| CN107100327A (en) | The concrete structure and implementation method of a kind of carbon cloth parcel reinforcing bar | |
| CN106741835B (en) | A kind of forming method of multiple material metal-integral pull rod | |
| CN210390356U (en) | Composite material foam sandwich structure capable of ensuring product flatness | |
| CN103085363A (en) | Novel composite material dot matrix structure for connecting rod piece and panel and preparation method for novel composite material dot matrix structure | |
| US20150217535A1 (en) | Prestressed Rod Stiffened Composite Structures | |
| CN104032672A (en) | Lead core rubber support composited by high-strength steel fibers and fine steel wire meshes | |
| CN207110524U (en) | One kind reinforces H profile steel beam column | |
| CN109397719A (en) | For drawing-pressing the carbon fibre composite of carrying to wind connector and preparation method thereof | |
| CN203093159U (en) | Composite material dot-matrix structure with novel connection between rod member and panel | |
| CN203974161U (en) | The heat insulation vibration damping laminate of a kind of fiber enhanced foam gradient | |
| CN107035158B (en) | Anchoring device for concrete column | |
| CN202685426U (en) | Stone composite plate with sandwich structure | |
| CN108673972A (en) | A kind of combined wood-bamboo material of cross laminate and preparation method thereof | |
| CN206745823U (en) | One kind enhancing suspension ring circle | |
| CN204202982U (en) | For the charger of material biaxial compression test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |