CN108054508A - A kind of reinforced PMI foam layers radome - Google Patents
A kind of reinforced PMI foam layers radome Download PDFInfo
- Publication number
- CN108054508A CN108054508A CN201711225197.9A CN201711225197A CN108054508A CN 108054508 A CN108054508 A CN 108054508A CN 201711225197 A CN201711225197 A CN 201711225197A CN 108054508 A CN108054508 A CN 108054508A
- Authority
- CN
- China
- Prior art keywords
- radome
- reinforcing rib
- pmi foam
- foam layers
- reinforced
- 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.)
- Pending
Links
- 229920007790 polymethacrylimide foam Polymers 0.000 title claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 5
- 230000003116 impacting effect Effects 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 11
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
- B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0257—Polyamide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
Landscapes
- Details Of Aerials (AREA)
Abstract
The invention belongs to radome design fields, and in particular to a kind of reinforced PMI foam layers radome.PMI foam layers are widely used in radome field.But the shock resistance of PMI foam layers is weaker, is impacting by hail, is easily being damaged after the accidental shocks such as bird is hit, sandstone impacts.The reinforced PMI foam layers radome of the present invention, has reinforcing rib between the upper covering and lower covering of radome, PMI foam cores is provided in the region between reinforcing rib.The present invention can improve the impact resistance of radome, effectively limit damage propatagtion, improve the bearing capacity and use reliability of structure, can be used on existing and later many types of antenna house.
Description
Technical field
The invention belongs to radome design fields, and in particular to a kind of reinforced PMI foam layers radome.
Background technology
PMI foam layers due to specific stiffness and specific strength height, light weight, have good stability, the advantages such as endurance are in aviation
Space industry has obtained widely applying, in addition, the isotropic characteristics of PMI foam cores make it have good wave transparent performance,
Therefore, PMI foam layers act not only as structural member use, can also be used as functor use.At present, PMI foam layers
It is widely used in radome field.
But the shock resistance of PMI foam layers is weaker, impacted by hail, the unexpected punching such as bird is hit, sandstone impacts
It is easily damaged after hitting, the intensity and modulus of especially PMI foam cores is relatively low with respect to covering, and permissible is small, has centainly
Brittleness is more prone to damage after being subject to impact loading, if damage continues to carry after generating, it may appear that crack propagation,
Influence the bearing capacity and use reliability of structure.
The content of the invention
The present invention is in view of the above-mentioned problems, devise a kind of reinforced PMI foam layers radome, by foam core
In add reinforcing rib, enhance the impact resistance of radome, weaken after be subject to shock loading and foam core is damaged, limit
The extension of foam core damage processed, improves structural-load-carrying capacity and use reliability.
The reinforced PMI foam layers radome of the present invention, between the upper covering and lower covering of radome
There is reinforcing rib, PMI foam cores are provided in the region between reinforcing rib.
The material identical of the reinforcing rib and upper and lower covering.
The PMI foam cores are the identical several independent blocks of region shape between reinforcing rib, are directly placed at
Between reinforcing rib, cured by glued membrane and upper and lower covering.
The reinforcing rib uses the form of transverse bar and vertical bars Orthogonally arrangement, and is connected with upper and lower covering.
The reinforcing rib is integrally formed with lower covering, is cured with upper covering by glued membrane.
The reinforced PMI foam layers radome of the present invention, the material of reinforcing rib is identical with covering, reinforcing rib and Inner Mongol
Skin is connected with exterior skin, plays good supporting role, at the same with Transfer of Shear, can enhance radome intensity and
Rigidity improves the impact resistance of radome, can effectively weaken after be subject to shock loading and foam core is damaged；
And since the lattice section of reinforcing rib acts on, the damage that foam core generates can only extend in fixed region, can effectively prevent to steep
The damage propatagtion of foam core improves the bearing capacity and use reliability of structure.
During manufacture and use, if foam core is damaged, only to there is the replacement of the foam core of damage, avoid
Foam core even overall structure is replaced on a large scale to scrap, and improves the maintainability of structure.
The present invention can improve the impact resistance of radome, effectively limit damage propatagtion, improve holding for structure
Loading capability and use reliability, the present invention can use on existing and later many types of antenna house.
Description of the drawings
Fig. 1 is the structure diagram of the reinforced PMI foam layers radome of the present invention；
Fig. 2 is the Radome Antenna Structure schematic diagram for eliminating exterior skin.
Specific embodiment
It please refers to Fig.1 and Fig. 2, radome of the invention manufactures by the following method, first, be molded 4 He of inside panel
The overall structure of reinforcing rib 2, the size and spacing distance a of reinforcing rib 2 are designed according to the requirement of actual product；Secondly, add
Work is simultaneously molded several foam cores 3 for meeting shape and thickness requirement, and foam core 3 is individually positioned in the region that reinforcing rib 2 surrounds
In；Finally, exterior skin 1 is molded, and with substructure entirely through the shaping of glued membrane Nian Jie solidify afterwards.
Claims (5)
1. a kind of reinforced PMI foam layers radome, it is characterised in that：Radome upper covering (1) and under
There is reinforcing rib (2) between covering (4), PMI foam cores (3) are provided in the region between reinforcing rib (2).
2. radome according to claim 1, it is characterised in that：The reinforcing rib (2) and upper and lower covering (Isosorbide-5-Nitrae)
Material identical.
3. radome according to claim 1, it is characterised in that：The PMI foam cores (3) be and reinforcing rib (2)
Between the identical several independent blocks of region shape, be directly placed between reinforcing rib (2), pass through glued membrane and covered with upper and lower
Skin (Isosorbide-5-Nitrae) cures.
4. radome according to claim 1, it is characterised in that：The reinforcing rib (2) is using transverse bar and vertical bars just
The form of arrangement is handed over, and is connected with upper and lower covering (Isosorbide-5-Nitrae).
5. radome according to claim 4, it is characterised in that：The reinforcing rib (2) and lower covering (4) one into
Type is cured with upper covering (1) by glued membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225197.9A CN108054508A (en) | 2017-11-29 | 2017-11-29 | A kind of reinforced PMI foam layers radome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225197.9A CN108054508A (en) | 2017-11-29 | 2017-11-29 | A kind of reinforced PMI foam layers radome |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108054508A true CN108054508A (en) | 2018-05-18 |
Family
ID=62121095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711225197.9A Pending CN108054508A (en) | 2017-11-29 | 2017-11-29 | A kind of reinforced PMI foam layers radome |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108054508A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490837A (en) * | 2018-07-13 | 2019-03-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of Anti-cracking extended pattern foamed sandwich structure radome |
| CN114474780A (en) * | 2020-10-26 | 2022-05-13 | 北京市政建设集团有限责任公司 | Sandwich plate type shield tunnel segment anti-collision energy absorption device and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001007625A (en) * | 1999-06-22 | 2001-01-12 | Taiei Shoko Kk | Radome for antenna and forming method |
| CN102848622A (en) * | 2012-09-06 | 2013-01-02 | 江苏兆鋆新材料科技有限公司 | Sandwich material with PMI foam core material, and preparation method thereof |
| CN103496178A (en) * | 2013-09-03 | 2014-01-08 | 航天特种材料及工艺技术研究所 | Foamed reinforced composite material structure vacuum co-injection integral forming method |
| CN106739043A (en) * | 2017-03-17 | 2017-05-31 | 零八电子集团四川天源机械有限公司 | PMI foam layers radome of fighter and its manufacture method |
| CN107331961A (en) * | 2017-07-14 | 2017-11-07 | 广东通宇通讯股份有限公司 | Enhanced antenna house and omnidirectional antenna |
-
2017
- 2017-11-29 CN CN201711225197.9A patent/CN108054508A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001007625A (en) * | 1999-06-22 | 2001-01-12 | Taiei Shoko Kk | Radome for antenna and forming method |
| CN102848622A (en) * | 2012-09-06 | 2013-01-02 | 江苏兆鋆新材料科技有限公司 | Sandwich material with PMI foam core material, and preparation method thereof |
| CN103496178A (en) * | 2013-09-03 | 2014-01-08 | 航天特种材料及工艺技术研究所 | Foamed reinforced composite material structure vacuum co-injection integral forming method |
| CN106739043A (en) * | 2017-03-17 | 2017-05-31 | 零八电子集团四川天源机械有限公司 | PMI foam layers radome of fighter and its manufacture method |
| CN107331961A (en) * | 2017-07-14 | 2017-11-07 | 广东通宇通讯股份有限公司 | Enhanced antenna house and omnidirectional antenna |
Non-Patent Citations (1)
| Title |
|---|
| 石姗姗: "仿生格栅增强蜂窝夹芯结构的设计、制造与分析", 《中国博士学位论文全文数据库 工程科技I辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490837A (en) * | 2018-07-13 | 2019-03-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of Anti-cracking extended pattern foamed sandwich structure radome |
| CN114474780A (en) * | 2020-10-26 | 2022-05-13 | 北京市政建设集团有限责任公司 | Sandwich plate type shield tunnel segment anti-collision energy absorption device and preparation method thereof |
| CN114474780B (en) * | 2020-10-26 | 2023-12-12 | 北京市政建设集团有限责任公司 | Sandwich plate type shield tunnel segment anti-collision energy absorbing device and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |