CN109494474A - A kind of honeycomb sandwich construction radome method for maintaining - Google Patents
A kind of honeycomb sandwich construction radome method for maintaining Download PDFInfo
- Publication number
- CN109494474A CN109494474A CN201810771241.4A CN201810771241A CN109494474A CN 109494474 A CN109494474 A CN 109494474A CN 201810771241 A CN201810771241 A CN 201810771241A CN 109494474 A CN109494474 A CN 109494474A
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- CN
- China
- Prior art keywords
- suture
- radome
- dry state
- kevlar fiber
- sandwich construction
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/285—Aircraft wire antennas
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a kind of honeycomb sandwich construction radome method for maintaining, comprising the following steps: 1) the prefabricated pin hole in place for needing to suture in radome honeycomb sandwich construction using drill bit；2) suture repair is carried out along honeycomb interlayer thickness direction using the dry state Kevlar fiber suture after immersion epoxy resin solvent；3) it provides 100 DEG C of temperature to be solidified, penetrates into the epoxy resin solvent on dry state Kevlar fiber suture in pin hole, form suture resin column reinforcement after solidification in honeycomb sandwich construction；4) under the conditions of 20 DEG C~30 DEG C of temperature, covering and lower one layer of preimpregnate glass cloth of skin-surface seam area paving in radome, the method for maintaining is simple and quick, requirement to maintenance personal is lower, Kevlar fiber intensity with higher, shock resistance and wave transparent performance, load can be effectively transmitted, the bearing requirements of structure are met, the electrical property of radome is influenced smaller.
Description
Technical field
The present invention relates to radome technical fields, in particular to a kind of honeycomb sandwich construction radome maintenance side
Method.
Background technique
Radar is the farsighted person of aircraft, person who can hear voices a long way off, and important feature functional component of the radome as radar system is
Radar provides excellent electromagnetic transparent window, while bearing various load and natural environment effect, protection radar system safety, by
In honeycomb sandwich construction specific strength with higher, rigidity and good electromagnetic wave permeable energy, fly to be civilian both at home and abroad at present
The primary structure form that machine radome uses.
Honeycomb sandwich construction radar antenna covers on to use and be on active service will appear layering, degumming, cracking, impact etc. respectively in the process
The damage of seed type, if repairing not in time, under hygrothermal environment effect, moisture can enter composite material cover from damage location
Inside, lead to honeycomb and covering unsticking, under the influence of mechanical environment, delamination area can extend, and cause integrally-built strong
Disabler is spent, meanwhile, aircraft can meet with weathering and rain impact in high speed flight at high altitude, and the raindrop scavenging of high speed will be invaded seriously
Anti- weathering system is lost, rain-proof erosion resisting coating is caused to fall off, if repairing not in time, is accumulated over a long period, moisture is immersed in radome
Inside, so that ponding inside cover, causes honeycomb sandwich construction unsticking, layering, seriously affect the wave transparent performance of radome
And mechanical property, therefore, after there is damage in honeycomb interlayer, it is necessary to repair, just can guarantee radome properties
It meets the requirements.
The method for maintaining of traditional radome generally uses sticking patch to overlap bonded process, and the material of sticking patch need to be selected and be covered
The same or similar low dielectric, low-loss glass fiber compound material system of skin material, thickness will be with the electric thickness phases of original structure
Match, repair technology is more complex, to the more demanding of maintenance.
Summary of the invention
Present invention solves the technical problem that: a kind of honeycomb sandwich construction radome method for maintaining is provided, to solve
Traditional sticking patch overlap joint bonded process repair technology is more complex, to the more demanding problem of maintenance personal.
Technical solution of the present invention:
A kind of honeycomb sandwich construction radome method for maintaining, it is characterised in that: the following steps are included:
Step 1: the prefabricated pin hole in place for needing to suture in radome honeycomb sandwich construction using drill bit；
Step 2: using immerse epoxy resin solvent after dry state Kevlar fiber suture along honeycomb interlayer thickness direction into
Row suture repair；
Step 3: 100 DEG C of temperature being provided and is solidified, the epoxy resin solvent on dry state Kevlar fiber suture is seeped
Enter into pin hole, forms suture resin column reinforcement after solidification in honeycomb sandwich construction.
Under the conditions of the temperature of 4:20 DEG C of step~30 DEG C, covering and lower skin-surface seam area paving in radome
Paste one layer of preimpregnate glass cloth.
The prefabricated pin hole in place for needing to suture in radome honeycomb sandwich construction using drill bit described in step 1, institute
The pinhole diameter stated is 2.2mm.
Using the dry state Kevlar fiber suture after immersion epoxy resin solvent along honeycomb interlayer thickness side described in step 2
To suture repair is carried out, dry state Kevlar fiber suture suture spacing a is 10mm, and suture needle distance b is 10mm, and dry state Kevlar is fine
Dimension length of suture c is 10mm.
Using the dry state Kevlar fiber suture after immersion epoxy resin solvent along honeycomb interlayer thickness side described in step 2
To suture repair is carried out, the dry state Kevlar fiber suture is the dry state Kevlar fiber suture of 100 Tekes.
Beneficial effects of the present invention:
A kind of honeycomb sandwich construction radome method for maintaining is provided, the honeycomb interlayer needs in radome are repaired
The region of benefit is sutured using the dry state Kevlar fiber suture after immersion epoxy resin solvent along honeycomb interlayer thickness direction
Repairing, the method for maintaining is simple and quick, and the requirement to maintenance personal is lower, simultaneously as Kevlar fiber is with higher
Intensity and shock resistance, therefore can effectively transmit load, meet the bearing requirements of structure, furthermore, due to Kevlar
Fiber has good wave transparent performance, therefore suture repair is smaller on the influence of the electrical property of radome, is also applied for other
The maintenance of structure type radome.
Detailed description of the invention
Fig. 1 is dry state Kevlar fiber suture of the present invention along honeycomb interlayer suture schematic diagram；
Fig. 2 is dry state Kevlar fiber suture of the present invention in skin-surface suture schematic diagram；
It is identified in figure: 1, upper covering, 2, honeycomb interlayer, 3, lower covering, 4, dry state Kevlar fiber suture.
Specific embodiment
A kind of honeycomb sandwich construction radome method for maintaining, it is characterised in that: the following steps are included:
Step 1: the prefabricated pin hole in place for needing to suture in 2 structure of radome honeycomb interlayer using drill bit；
Step 2: using the dry state Kevlar fiber suture 4 after immersion epoxy resin solvent along 2 thickness direction of honeycomb interlayer
Carry out suture repair；
Step 3: 100 DEG C of temperature being provided and is solidified, the epoxy resin solvent on dry state Kevlar fiber suture 4 is seeped
Enter into pin hole, forms suture resin column reinforcement after solidification in 2 structure of honeycomb interlayer.
Under the conditions of the temperature of 4:20 DEG C of step~30 DEG C, the 3 surface seam area of covering 1 and lower covering in radome
One layer of preimpregnate glass cloth of paving.
The prefabricated pin hole in place for needing to suture in radome honeycomb sandwich construction using drill bit described in step 1, institute
The pinhole diameter stated is 2.2mm.
Using the dry state Kevlar fiber suture 4 after immersion epoxy resin solvent along 2 thickness of honeycomb interlayer described in step 2
Direction carries out suture repair, and 4 suture spacing a of dry state Kevlar fiber suture is 10mm, and suture needle distance b is 10mm, dry state
Kevlar fiber length of suture c be 10mm, line suture spacing a, suture needle distance b, length of suture c Design of length both can be effective
Load is transmitted in honeycomb interlayer 2, and can satisfy honeycomb interlayer 2 wave transparent requirement.
Using the dry state Kevlar fiber suture 4 after immersion epoxy resin solvent along honeycomb interlayer thickness 2 described in step 2
Direction carries out suture repair, and the dry state Kevlar fiber suture 4 is the dry state Kevlar fiber suture 4 of 100 Tekes, by
In the intensity with higher of dry state Kevlar fiber suture 4 of 100 Tekes, thus can effective Transfer of Shear, meet knot
The bearing requirements of structure, while the dry state Kevlar fiber suture 4 of 100 Tekes has good wave transparent performance, therefore honeycomb presss from both sides
Splicing suture between layer 2 influences the electrical property of radome smaller.
Claims (4)
1. a kind of honeycomb sandwich construction radome method for maintaining, it is characterised in that: the following steps are included:
Step 1: the prefabricated pin hole in place for needing to suture in radome honeycomb interlayer (2) structure using drill bit；
Step 2: using the dry state Kevlar fiber suture (4) after immersion epoxy resin solvent along honeycomb interlayer (2) thickness direction
Carry out suture repair；
Step 3: 100 DEG C of temperature being provided and is solidified, the epoxy resin solvent on dry state Kevlar fiber suture (4) is penetrated into
Into pin hole, suture resin column reinforcement is formed after solidification in honeycomb sandwich construction；
Under the conditions of the temperature of 4:20 DEG C of step~30 DEG C, covering (1) and lower covering (3) surface seam area in radome
One layer of preimpregnate glass cloth of paving.
2. a kind of honeycomb sandwich construction radome method for maintaining according to claim 1, it is characterised in that: step 1
The prefabricated pin hole in place for needing to suture in radome honeycomb interlayer (2) structure using drill bit, the pin hole are straight
Diameter is 2.2mm.
3. a kind of honeycomb sandwich construction radome method for maintaining according to claim 1, it is characterised in that: step 2
Described is carried out using the dry state Kevlar fiber suture (4) after immersion epoxy resin solvent along honeycomb interlayer (2) thickness direction
Suture repair, dry state Kevlar fiber suture (4) suture spacing a are 10mm, and suture needle distance b is 10mm, dry state Kevlar fiber
Length of suture c is 10mm.
4. a kind of honeycomb sandwich construction radome method for maintaining according to claim 2, it is characterised in that: step 2
Described is carried out using the dry state Kevlar fiber suture (4) after immersion epoxy resin solvent along honeycomb interlayer (2) thickness direction
Suture repair, the dry state Kevlar fiber suture (4) are the dry state Kevlar fiber suture (4) of 100 Tekes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810771241.4A CN109494474A (en) | 2018-07-13 | 2018-07-13 | A kind of honeycomb sandwich construction radome method for maintaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810771241.4A CN109494474A (en) | 2018-07-13 | 2018-07-13 | A kind of honeycomb sandwich construction radome method for maintaining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109494474A true CN109494474A (en) | 2019-03-19 |
Family
ID=65689301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810771241.4A Pending CN109494474A (en) | 2018-07-13 | 2018-07-13 | A kind of honeycomb sandwich construction radome method for maintaining |
Country Status (1)
| Country | Link |
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| CN (1) | CN109494474A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3101808A1 (en) * | 2019-10-09 | 2021-04-16 | Safran Nacelles | Repair by suture of a sandwich panel |
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| CN101462382A (en) * | 2009-01-16 | 2009-06-24 | 武汉理工大学 | Sandwich structure composite material with elastic core material and preparation method thereof |
| CN101630774A (en) * | 2009-08-07 | 2010-01-20 | 北京玻钢院复合材料有限公司 | Glass steel radar cover single element and forming method thereof |
| CN102055068A (en) * | 2009-10-27 | 2011-05-11 | 上海玻璃钢研究院有限公司 | Manufacturing method of wind shield for a vehicular radar |
| CN103000995A (en) * | 2012-12-12 | 2013-03-27 | 洛阳双瑞橡塑科技有限公司 | Combined antenna housing |
| CN104577324A (en) * | 2015-02-06 | 2015-04-29 | 哈尔滨哈玻拓普复合材料有限公司 | Method for designing large-power-resisting broadband radar antenna cover |
| CN105552567A (en) * | 2015-12-09 | 2016-05-04 | 上海复合材料科技有限公司 | Antenna reflection plane and preparation method therefor |
| US20170309996A1 (en) * | 2016-04-20 | 2017-10-26 | The United States Of America As Represented By The Secretary Of The Navy | Advanced radome designs with tailorable reinforcement and methods of manufacturing the same |
| CN206657858U (en) * | 2017-01-22 | 2017-11-21 | 上海之合玻璃钢有限公司 | The fire-retardant antenna house of wideband |
| CN108023180A (en) * | 2017-11-29 | 2018-05-11 | 中国航空工业集团公司济南特种结构研究所 | A kind of antenna house of assorted fibre interlayer |
-
2018
- 2018-07-13 CN CN201810771241.4A patent/CN109494474A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09162636A (en) * | 1995-12-04 | 1997-06-20 | Furukawa Electric Co Ltd:The | Plane radio wave reflector provided with multi-sheet radome |
| JP2001007625A (en) * | 1999-06-22 | 2001-01-12 | Taiei Shoko Kk | Radome for antenna and forming method |
| CN101227029A (en) * | 2008-01-24 | 2008-07-23 | 吴豪 | Composite material satellite antenna reflection surface and manufacturing process thereof |
| CN101462382A (en) * | 2009-01-16 | 2009-06-24 | 武汉理工大学 | Sandwich structure composite material with elastic core material and preparation method thereof |
| CN101630774A (en) * | 2009-08-07 | 2010-01-20 | 北京玻钢院复合材料有限公司 | Glass steel radar cover single element and forming method thereof |
| CN102055068A (en) * | 2009-10-27 | 2011-05-11 | 上海玻璃钢研究院有限公司 | Manufacturing method of wind shield for a vehicular radar |
| CN103000995A (en) * | 2012-12-12 | 2013-03-27 | 洛阳双瑞橡塑科技有限公司 | Combined antenna housing |
| CN104577324A (en) * | 2015-02-06 | 2015-04-29 | 哈尔滨哈玻拓普复合材料有限公司 | Method for designing large-power-resisting broadband radar antenna cover |
| CN105552567A (en) * | 2015-12-09 | 2016-05-04 | 上海复合材料科技有限公司 | Antenna reflection plane and preparation method therefor |
| US20170309996A1 (en) * | 2016-04-20 | 2017-10-26 | The United States Of America As Represented By The Secretary Of The Navy | Advanced radome designs with tailorable reinforcement and methods of manufacturing the same |
| CN206657858U (en) * | 2017-01-22 | 2017-11-21 | 上海之合玻璃钢有限公司 | The fire-retardant antenna house of wideband |
| CN108023180A (en) * | 2017-11-29 | 2018-05-11 | 中国航空工业集团公司济南特种结构研究所 | A kind of antenna house of assorted fibre interlayer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3101808A1 (en) * | 2019-10-09 | 2021-04-16 | Safran Nacelles | Repair by suture of a sandwich panel |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |
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| RJ01 | Rejection of invention patent application after publication |