CN109606708A - A kind of small size inlet structure preparation method - Google Patents
A kind of small size inlet structure preparation method Download PDFInfo
- Publication number
- CN109606708A CN109606708A CN201811465862.6A CN201811465862A CN109606708A CN 109606708 A CN109606708 A CN 109606708A CN 201811465862 A CN201811465862 A CN 201811465862A CN 109606708 A CN109606708 A CN 109606708A
- Authority
- CN
- China
- Prior art keywords
- covering
- inlet
- lip
- small size
- air intake
- 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.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims abstract description 4
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000002048 anodisation reaction Methods 0.000 claims description 3
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 230000036244 malformation Effects 0.000 abstract 1
- 238000007792 addition Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/60—Riveting or staking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Duct Arrangements (AREA)
Abstract
A kind of small size inlet structure preparation method, it will be coated first added with the resin mixture liquor of curing agent to fibre reinforced materials using low pressure contact moulding process, then fibre reinforced materials merging is used to prepare in the mold of air intake duct composite material parts, the composite product of air intake duct main body, upper covering, middle covering and lower covering is obtained by curing molding, demoulding；Then machine add-on type prepares inlet lip, then upper covering is inserted into inlet lip with middle covering and is connect by self-plugging rivet, is connect after middle covering is aligned with lower covering overlap joint by self-plugging rivet；Finally air intake duct main body is packed into after inlet lip and is fixed by plate nut, the prefabricated screw hole of lip to get to small size inlet structure, integration is higher, and covering rigidity is strong, can control malformation；Constitutional detail number and riveting quantity are effectively reduced simultaneously, and complex-curved configuration design requirement is able to satisfy using composite material, is suitable for complex contour, the insufficient inlet structure in operating space.
Description
Technical field
The present invention relates to technical field of aircraft structure design more particularly to a kind of small size inlet structure preparation methods.
Background technique
Aircraft engine intake mainly has following two big functions: first is that guaranteeing that engine can under various working conditions
Steadily work；Second is that compressing to the air for entering air intake duct, the kinetic energy of air-flow is promoted to become pressure potential.For subsonics
For fast aircraft, the main function of air intake duct is the steady air current for guaranteeing to enter engine.Due to baby plane (basis coach
Machine, unmanned plane), the volume of aircraft is relatively small, therefore the outer dimension of air intake duct is also smaller, and existing inlet structure is general
Using aluminium alloy thin-walled riveted structure, need to arrange inside panel to meet inlet flow requirement, and exterior skin then need to meet it is winged
The requirement of machine aerodynamic configuration, however covering rigidity is weaker, in order to meet intensity, the rigidity requirement of inlet structure, between inside and outside covering
It need to be supported using rib, assembly connection is more, needs biggish operating space, and such air intake duct is more with number of parts, ties
Structure weight is larger, assembly is complicated, the deficiencies of not being suitable for complex-curved shape, requiring riveting operation space larger.
Summary of the invention
Technical problem solved by the invention is to provide a kind of small size inlet structure preparation method, above-mentioned to solve
Disadvantage in background technique.
Technical problem solved by the invention is realized using following technical scheme:
A kind of small size inlet structure preparation method, the specific steps are as follows:
1) it will be coated first added with the resin mixture liquor of curing agent to fibre reinforced materials using low pressure contact moulding process, and
Fibre reinforced materials merging is used to prepare in the mold of air intake duct composite material parts afterwards, is obtained by curing molding, demoulding
Air intake duct main body, upper covering, middle covering and lower covering composite product；
2) machine add-on type prepares inlet lip；
3) plate nut, the prefabricated screw hole of lip are installed in the air intake duct main body prepared in step 1)；
4) the upper covering prepared in step 1) and middle covering are inserted into inlet lip, while in upper covering, middle covering and air inlet
The junction depressed area fiberfill fibers silk of road lip；
5) the middle covering prepared in step 1) is aligned with lower covering overlap joint；
6) by air intake duct main body pack into inlet lip by the prefabricated screw hole of plate nut, lip it is fixed to get to small size into
Air passage structure.
In the present invention, small size inlet structure is connect by rivet or quick-detachable lock with surrounding structure.
In the present invention, the material of covering in preparation, middle covering, lower covering and air intake duct main body is composite material
NY9200GA/EW210 prepreg.
In the present invention, inlet lip is made of 7050 aluminium alloys, procedure of processing are as follows: by 7050 aluminium alloy additions
Through anodization after shape, then apply H06-3 zinc chromate primer.
In the present invention, small size inlet structure includes air intake duct main body, upper covering, middle covering, lower covering and air inlet
Road lip, wherein upper covering and middle covering are inserted into inlet lip, and middle covering is aligned with lower covering overlap joint, air intake duct main body set
On inlet lip.
In the present invention, it is connect after middle covering is aligned with lower covering overlap joint by self-plugging rivet.
In the present invention, upper covering, middle covering are connect with inlet lip by self-plugging rivet.
In the present invention, air intake duct main body is fixed with inlet lip by plate nut, the prefabricated screw hole of lip.
The utility model has the advantages that small size inlet structure integration prepared by the present invention is higher, covering rigidity is strong, can control structure
Deformation；Constitutional detail number and riveting quantity are effectively reduced simultaneously, and assembly is simple, so that assembly cost is reduced, using composite wood
Material is able to satisfy the design requirement of complex-curved shape, is suitable for complex contour, the insufficient inlet structure in operating space (including machine
The air intake ducts configurations such as back formula, bilateral type, ventral formula) it designs and manufactures.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of presently preferred embodiments of the present invention.
Fig. 2 is cross-sectional view at A-A in Fig. 1.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
A kind of small size inlet structure preparation method, the specific steps are as follows:
1) it will be coated first added with the resin mixture liquor of curing agent to fibre reinforced materials using low pressure contact moulding process, and
Fibre reinforced materials merging is used to prepare in the mold of air intake duct composite material parts afterwards, is obtained by curing molding, demoulding
Air intake duct main body 1, upper covering 3, middle covering 4 and lower covering 5 composite product；
2) machine add-on type prepares inlet lip 2；
3) plate nut, the prefabricated screw hole of lip are installed in the air intake duct main body 1 prepared in step 1)；
4) the upper covering 3 prepared in step 1) is inserted into inlet lip 2 with middle covering 4 and is connect by self-plugging rivet, simultaneously
In upper covering 3, the junction depressed area fiberfill fibers silk of middle covering 4 and inlet lip 2；
5) it after being aligned the middle covering 4 prepared in step 1) with lower covering 5 overlap joint, is connected by self-plugging rivet；
6) air intake duct main body 1 is packed into fixed to get to small ruler by plate nut, the prefabricated screw hole of lip after inlet lip 2
Little progress air passage structure.
In the present embodiment, small size inlet structure is connect by rivet (or quick-detachable lock) with surrounding structure.
In the present embodiment, the material of covering 3 in preparation, middle covering 4, lower covering 5 and air intake duct main body 1 is composite material
NY9200GA/EW210 prepreg, it is 7050 aluminium alloys that inlet lip 2, which prepares material, will be passed through after 7050 aluminium alloy addition shapes
Anodization, then apply H06-3 zinc chromate primer.
In the present embodiment, the small size inlet structure as shown in FIG. 1 to FIG. 2 include air intake duct main body 1, upper covering 3,
Middle covering 4, lower covering 5 and inlet lip 2, wherein upper covering 3 is inserted into inlet lip 2 with middle covering 4, and middle covering 4 is under
The overlap joint alignment of covering 5,1 set of air intake duct main body on inlet lip 2.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (9)
1. a kind of small size inlet structure preparation method, which is characterized in that specific step is as follows:
1) it will be coated first added with the resin mixture liquor of curing agent to fibre reinforced materials using low pressure contact moulding process, and
Fibre reinforced materials merging is used to prepare in the mold of air intake duct composite material parts afterwards, is obtained by curing molding, demoulding
Air intake duct main body, upper covering, middle covering and lower covering composite product；
2) machine add-on type prepares inlet lip；
3) plate nut, the prefabricated screw hole of lip are installed in the air intake duct main body prepared in step 1)；
4) the upper covering prepared in step 1) and middle covering are inserted into inlet lip, while in upper covering, middle covering and air inlet
The junction depressed area fiberfill fibers silk of road lip；
5) the middle covering prepared in step 1) is aligned with lower covering overlap joint；
6) by air intake duct main body pack into inlet lip by the prefabricated screw hole of plate nut, lip it is fixed to get to small size into
Air passage structure.
2. a kind of small size inlet structure preparation method according to claim 1, which is characterized in that small size air intake duct
Structure is connect by rivet or quick-detachable lock with surrounding structure.
3. a kind of small size inlet structure preparation method according to claim 1, which is characterized in that covering in preparation,
The material of middle covering, lower covering and air intake duct main body is composite material NY9200GA/EW210 prepreg.
4. a kind of small size inlet structure preparation method according to claim 1, which is characterized in that inlet lip is adopted
It is made of 7050 aluminium alloys.
5. a kind of small size inlet structure preparation method according to claim 4, which is characterized in that inlet lip adds
Work step is rapid are as follows:, through anodization, then will apply H06-3 zinc chromate primer after 7050 aluminium alloy addition shapes.
6. a kind of small size inlet structure preparation method according to claim 1, which is characterized in that the small size of preparation
Inlet structure includes air intake duct main body, upper covering, middle covering, lower covering and inlet lip, wherein upper covering and middle covering
It is inserted into inlet lip, middle covering is aligned with lower covering overlap joint, and air intake duct main body covers on inlet lip.
7. a kind of small size inlet structure preparation method according to claim 6, which is characterized in that middle covering and lower illiteracy
It is connected after skin overlap joint alignment by self-plugging rivet.
8. a kind of small size inlet structure preparation method according to claim 6, which is characterized in that upper covering, middle illiteracy
Skin is connect with inlet lip by self-plugging rivet.
9. a kind of small size inlet structure preparation method according to claim 6, which is characterized in that air intake duct main body with
Inlet lip is fixed by plate nut, the prefabricated screw hole of lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811465862.6A CN109606708B (en) | 2018-12-03 | 2018-12-03 | Preparation method of small-size air inlet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811465862.6A CN109606708B (en) | 2018-12-03 | 2018-12-03 | Preparation method of small-size air inlet structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109606708A true CN109606708A (en) | 2019-04-12 |
| CN109606708B CN109606708B (en) | 2022-04-08 |
Family
ID=66005709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811465862.6A Active CN109606708B (en) | 2018-12-03 | 2018-12-03 | Preparation method of small-size air inlet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109606708B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162336A (en) * | 2021-12-14 | 2022-03-11 | 北京机电工程研究所 | Aircraft radar stealth air inlet duct and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2064412A (en) * | 1979-11-29 | 1981-06-17 | Rolls Royce | Moulding Perforated Structures |
| EP0265890A2 (en) * | 1986-10-24 | 1988-05-04 | NUOVA SIAI MARCHETTI S.p.A. | Method of producing aircraft air intake ducts from composite synthetic material |
| KR20030034667A (en) * | 2001-10-26 | 2003-05-09 | 한국항공우주산업 주식회사 | Structure of inlet lip of airplane using composite material |
| CN101535122A (en) * | 2006-08-04 | 2009-09-16 | 法国空中巴士公司 | Structural element of an aircraft |
| CN102057144A (en) * | 2008-06-06 | 2011-05-11 | 空中巴士运作简易股份有限公司 | Method of depositing a coating for improving laminar flow |
| CN103407173A (en) * | 2013-07-30 | 2013-11-27 | 北京航空航天大学 | Integrally-forming method of wing made of fiber reinforced resin matrix composites |
| US20130315657A1 (en) * | 2010-05-07 | 2013-11-28 | Aircelle | Unit for an aircraft thruster |
| US20150129045A1 (en) * | 2013-11-11 | 2015-05-14 | The Boeing Company | Nacelle inlet configuration |
| CN104691765A (en) * | 2013-12-09 | 2015-06-10 | 成都飞机工业（集团）有限责任公司 | Composite material integrated air inlet way |
| CN106715267A (en) * | 2014-09-18 | 2017-05-24 | 赛峰短舱公司 | Device for attaching an air inlet onto a fan casing of an aircraft turbojet nacelle |
-
2018
- 2018-12-03 CN CN201811465862.6A patent/CN109606708B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2064412A (en) * | 1979-11-29 | 1981-06-17 | Rolls Royce | Moulding Perforated Structures |
| EP0265890A2 (en) * | 1986-10-24 | 1988-05-04 | NUOVA SIAI MARCHETTI S.p.A. | Method of producing aircraft air intake ducts from composite synthetic material |
| KR20030034667A (en) * | 2001-10-26 | 2003-05-09 | 한국항공우주산업 주식회사 | Structure of inlet lip of airplane using composite material |
| CN101535122A (en) * | 2006-08-04 | 2009-09-16 | 法国空中巴士公司 | Structural element of an aircraft |
| CN102057144A (en) * | 2008-06-06 | 2011-05-11 | 空中巴士运作简易股份有限公司 | Method of depositing a coating for improving laminar flow |
| US20130315657A1 (en) * | 2010-05-07 | 2013-11-28 | Aircelle | Unit for an aircraft thruster |
| CN103407173A (en) * | 2013-07-30 | 2013-11-27 | 北京航空航天大学 | Integrally-forming method of wing made of fiber reinforced resin matrix composites |
| US20150129045A1 (en) * | 2013-11-11 | 2015-05-14 | The Boeing Company | Nacelle inlet configuration |
| CN104691765A (en) * | 2013-12-09 | 2015-06-10 | 成都飞机工业（集团）有限责任公司 | Composite material integrated air inlet way |
| CN106715267A (en) * | 2014-09-18 | 2017-05-24 | 赛峰短舱公司 | Device for attaching an air inlet onto a fan casing of an aircraft turbojet nacelle |
Non-Patent Citations (1)
| Title |
|---|
| 杨永文: "《复合材料层合板及飞机进气道铺层设计与分析》", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162336A (en) * | 2021-12-14 | 2022-03-11 | 北京机电工程研究所 | Aircraft radar stealth air inlet duct and preparation method thereof |
| CN114162336B (en) * | 2021-12-14 | 2024-01-05 | 北京机电工程研究所 | Stealth air inlet channel of aircraft radar and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109606708B (en) | 2022-04-08 |
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