CN106525381B - A kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel - Google Patents
A kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel Download PDFInfo
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- CN106525381B CN106525381B CN201611092556.3A CN201611092556A CN106525381B CN 106525381 B CN106525381 B CN 106525381B CN 201611092556 A CN201611092556 A CN 201611092556A CN 106525381 B CN106525381 B CN 106525381B
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- adjustment sheet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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Abstract
A kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel belongs to aviation aerodynamic force wind-tunnel technique field.The present invention is big in order to solve the problems, such as existing Mach number regulating mechanism flow cross-sectional adjusting blockage percentage.The present invention includes that preceding tail prolongs plate, diamond shape adjustment sheet and rear molding and prolongs plate, preceding tail prolongs plate and rear molding prolongs plate setting in the cavity that two venturi wainscots and two venturi lower wall panels are formed, preceding tail prolong plate and rear molding prolong plate between be hinged with diamond shape adjustment sheet, auxiliary adjustment mechanism is equipped in the diamond body of diamond shape adjustment sheet, rear molding prolongs plate and realizes the sliding action in sliding rail mounting base by the driving of main electric cylinder, by pulling rear molding to prolong the opening and closing that plate controls diamond shape adjustment sheet.Mechanism of the present invention uses diamond shape adjustment sheet, prolongs plate with preceding tail, rear molding prolongs the airflow face of plate formation continuously without scale, and diamond shape adjustment sheet can pack up that conjunction is flat, and device obstruction degree is small, and aeroperformance is good completely.
Description
Technical field
The present invention relates to a kind of Mach number regulating mechanisms suitable for transonic and supersonic wind tunnel, belong to the examination of aviation aerodynamic force wind-tunnel
Test technical field.
Background technology
Aerodynamics is to develop aeronautical and space technology and a basic science of other industrial technologies, and wind tunnel experiment is empty
One of the basic skills of aerodynamics research.It is sub-, in, supersonic wind tunnel experiment, Mach number all needs accurately to simulate
One of important aerodynamic parameter.In transonic and supersonic wind tunnel, there are many methods for control experiment Mach number, utilize the second larynx of centerbody formula
Road control experiment Mach number, is widely adopted because it has the characteristics that fast response time, degree of regulation is high.It is existing across supersonic speed
The second throat center body mechanism of wind-tunnel, some is discontinuous using two-piece type structure, airflow face, and some adjustment sheets can not be packed up
Conjunction is flat, blockage percentage is larger, and aeroperformance is poor.In conclusion there is an urgent need to develop a kind of novel Mach number regulating mechanism, energy
Enough take into account Mach number regulatory function and good aeroperformance.
Invention content
The purpose of the present invention is to solve the second throat centers of the existing transonic and supersonic wind tunnel using two-piece type structure
Body mechanism, because adjustment sheet smooth can not be packed up, conjunction is flat to cause Mach number measurement blockage percentage larger, the poor problem of aeroperformance, into
And provide a kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel.
Technical scheme of the present invention：
A kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel includes main electric cylinder, auxiliary adjustment mechanism, main electricity
Dynamic cylinder mounting base, oscillating bearing, connecting seat, sliding-rail sliding, sliding rail mounting base, preceding tail prolong plate, diamond shape adjustment sheet and rear molding and prolong plate,
The preceding tail prolongs plate and rear molding prolongs plate setting in the cavity that two venturi wainscots and two venturi lower wall panels are formed, preceding tail
Prolong plate and rear molding prolong plate between be hinged with diamond shape adjustment sheet, be equipped with auxiliary adjustment machine in the diamond body of the diamond shape adjustment sheet
Structure, the preceding tail prolong plate and are fixedly mounted on two venturi wainscots and the madial wall of two venturi lower wall panels, and the rear molding is prolonged
The upper and lower ends of plate are fixed with connecting seat, are equipped with sliding-rail sliding on connecting seat, rear molding prolong plate by sliding-rail sliding be mounted on
Sliding rail mounting base on two venturi wainscots and two venturi lower wall panels outer walls establishes connection, two venturi wainscots and two venturi lower walls
Main electric cylinder mounting base is also equipped on the outer wall of plate, main electric cylinder mounting base is equipped with main electric cylinder, and main electric cylinder passes through pass
Bearings are established with connecting seat and are connected.
Preferably：The diamond shape adjustment sheet includes the first adjustment sheet, the second adjustment sheet, third adjustment sheet and the 4th adjusting
Piece, first adjustment sheet and the second adjustment sheet prolong plate by articulated manner and preceding tail and establish connection, and the third is adjusted
Piece and the 4th adjustment sheet prolong plate by articulated manner and rear molding and establish connection, and first adjustment sheet is cut with scissors with third adjustment sheet
It connects, second adjustment sheet and the 4th adjustment sheet are hinged, the first adjustment sheet, the second adjustment sheet, third tune after articulated connection
Nodal plate and the 4th adjustment sheet form diamond shape and are hinged four-bar linkage structure.
Preferably：The auxiliary adjustment mechanism includes auxiliary electric cylinder, auxiliary electric cylinder mounting base and push rod, the push rod
It is arranged in the framework that diamond shape adjustment sheet is formed, push rod is completed to push by the auxiliary electric cylinder in auxiliary electric cylinder mounting base
Action, the auxiliary electric cylinder mounting base are fixedly mounted on two venturi wainscots and the lateral wall of two venturi lower wall panels.
Preferably：The adjustment sheet ontology of first adjustment sheet, the second adjustment sheet, third adjustment sheet and the 4th adjustment sheet
Centre is groove-like, and when diamond shape adjustment sheet is closed, push rod is in the notch of two adjustment sheets formation.
Preferably：The sliding rail mounting base includes upper sliding rail mounting base and glidepath mounting base, and the connecting seat is logical
It crosses the upper end and lower end installation sliding-rail sliding is mounted in upper sliding rail mounting base and glidepath mounting base.
The invention has the advantages that：Mechanism of the present invention uses diamond shape adjustment sheet, prolongs plate with preceding tail, rear molding prolongs plate
The airflow face of formation is continuously without scale, and diamond shape adjustment sheet can pack up conjunction and put down completely, and device obstruction degree is small, and aeroperformance is good
It is good.Mechanism uses auxiliary electric cylinder and pusher structure, can be by auxiliary electronic in the case where diamond shape adjustment sheet is in and packs up conjunction level state
Diamond shape adjustment sheet is opened a low-angle, abolishes the dead-centre position of mechanism, then driven by main electric cylinder by cylinder driving push rod
The proper motion of implementation mechanism.
Description of the drawings
Fig. 1 is a kind of vertical view of the Mach number regulating mechanism suitable for transonic and supersonic wind tunnel；
Fig. 2 is a kind of front view of the Mach number regulating mechanism suitable for transonic and supersonic wind tunnel；
Fig. 3 is sectional view at A-A in Fig. 1；
The main electric cylinders of 1- in figure, 2- auxiliary adjustments mechanism, the main electric cylinder mounting bases of 3-, the auxiliary electric cylinder mounting bases of 4-, 5- are closed
Bearings, 6- connecting seats, 7- sliding-rail slidings, 8- sliding rail mounting bases, tail prolongs plate, 10- diamond shape adjustment sheets before 9-, and 11- rear moldings prolong plate,
12- push rods, bis- venturi wainscots of 13-, bis- venturi lower wall panels of 14-, the auxiliary electric cylinders of 15-, the first adjustment sheets of 16-, 17- second are adjusted
Piece, 18- third adjustment sheets, the 4th adjustment sheets of 19-, the upper sliding rail mounting bases of 20-, 21- glidepath mounting bases.
Specific implementation mode
Specific implementation mode one：Illustrate that present embodiment, one kind of present embodiment are suitable for across super in conjunction with Fig. 1 to Fig. 3
The Mach number regulating mechanism of velocity of sound wind-tunnel includes main electric cylinder 1, auxiliary adjustment mechanism 2, main electric cylinder mounting base 3, oscillating bearing
5, connecting seat 6, sliding-rail sliding 7, sliding rail mounting base 8, preceding tail prolong plate 9, diamond shape adjustment sheet 10 and rear molding and prolong plate 11, the preceding tail
Prolong plate 9 and rear molding prolongs the setting of plate 11 in the cavity that two venturi wainscots 13 and two venturi lower wall panels 14 are formed, preceding tail prolongs
Plate 9 and rear molding are hinged with diamond shape adjustment sheet 10 between prolonging plate 11, and auxiliary is equipped in the diamond body of the diamond shape adjustment sheet 10
Regulating mechanism 2, the preceding tail prolong plate 9 and are fixedly mounted on two venturi wainscots 13 and the madial wall of two venturi lower wall panels 14,
The upper and lower ends that the rear molding prolongs plate 11 are fixed with connecting seat 6, sliding-rail sliding 7 are equipped on connecting seat 6, it is logical that rear molding prolongs plate 11
It crosses sliding-rail sliding 7 and establishes connection with the sliding rail mounting base 8 on 14 outer wall of two venturi wainscots 13 and two venturi lower wall panels,
Main electric cylinder mounting base 3, main electric cylinder mounting base 3 are also equipped on two venturi wainscots 13 and the outer wall of two venturi lower wall panels 14
It is equipped with main electric cylinder 1, main electric cylinder 1 is established with connecting seat 6 and connected；The sliding rail mounting base 8 includes upper sliding rail mounting base
20 and glidepath mounting base 21, the connecting seat 6 installs sliding-rail sliding 7 by the upper end and lower end and is mounted on the installation of upper sliding rail
On seat 20 and glidepath mounting base 21.It is fixedly mounted under two venturi wainscots 13 and two venturis so set, preceding tail is prolonged plate 9
On the madial wall of siding 14, preceding tail prolong plate 9 and rear molding prolong plate 11 between be hinged with diamond shape adjustment sheet 10, rear molding prolongs plate 11 and passes through master
Sliding action in sliding rail mounting base 8 is realized in the driving of electric cylinder 1, controls diamond shape tune by pulling rear molding to prolong plate 11 when experiment
The opening and closing of nodal plate 10 are realized by adjusting the venturi cross-sectional area that diamond shape adjustment sheet 10 and second throat sidewall paneling are formed
In transonic and supersonic wind tunnel, the adjusting of control experiment Mach number.
Specific implementation mode two：Illustrate that present embodiment, one kind of present embodiment are suitable for across super in conjunction with Fig. 1 to Fig. 3
Diamond shape adjustment sheet 10 described in the Mach number regulating mechanism of velocity of sound wind-tunnel includes the first adjustment sheet 16, the second adjustment sheet 17, third
Adjustment sheet 18 and the 4th adjustment sheet 19, first adjustment sheet 16 and the second adjustment sheet 17 prolong plate by articulated manner and preceding tail
9 establish connection, the third adjustment sheet 18 and the 4th adjustment sheet 19 prolongs the foundation connection of plate 11, institute by articulated manner and rear molding
The first adjustment sheet 16 and third adjustment sheet 18 stated are hinged, and second adjustment sheet 17 and the 4th adjustment sheet 19 are hinged, hinged
The first adjustment sheet 16, the second adjustment sheet 17, third adjustment sheet 18 and the 4th adjustment sheet 19 after connection form diamond shape hinged four and connect
Rod structure.
Specific implementation mode three：Illustrate that present embodiment, one kind of present embodiment are suitable for across super in conjunction with Fig. 1 to Fig. 3
Auxiliary adjustment mechanism 2 described in the Mach number regulating mechanism of velocity of sound wind-tunnel includes auxiliary electric cylinder 15, auxiliary electric cylinder mounting base 4 and pushes away
Bar 12, the push rod 12 are arranged in the framework that diamond shape adjustment sheet 10 is formed, and push rod 12 is installed by being mounted on auxiliary electric cylinder
Auxiliary electric cylinder 15 on seat 4 completes pushing action, and the auxiliary electric cylinder mounting base 4 is fixedly mounted on two venturi wainscots, 13 He
On the lateral wall of two venturi lower wall panels 14.So set, being driven by auxiliary electric cylinder 15, it will can be in pack up and close under level state
Diamond shape adjustment sheet 10 open a low-angle, abolish the dead-centre position of mechanism, then pass through main electric cylinder 1 drive implementation mechanism
Proper motion.
Specific implementation mode four：Illustrate that present embodiment, one kind of present embodiment are suitable for across super in conjunction with Fig. 1 to Fig. 3
The first adjustment sheet 16, the second adjustment sheet 17, third adjustment sheet 18 and the 4th described in the Mach number regulating mechanism of velocity of sound wind-tunnel are adjusted
It is groove-like among the adjustment sheet ontology of nodal plate 19, when diamond shape adjustment sheet 10 is closed, push rod 12 is in the formation of two adjustment sheets
In notch.
Present embodiment is only to the exemplary description of this patent does not limit its scope of protection, people in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (5)
1. a kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel, including main electric cylinder (1), auxiliary adjustment mechanism (2),
Main electric cylinder mounting base (3), oscillating bearing (5), connecting seat (6), sliding-rail sliding (7), sliding rail mounting base (8), preceding tail prolong plate
(9), diamond shape adjustment sheet (10) and rear molding prolong plate (11), it is characterised in that：The preceding tail prolongs plate (9) and rear molding is prolonged plate (11) and set
It sets in the cavity that two venturi wainscots (13) and two venturi lower wall panels (14) are formed, preceding tail prolongs plate (9) and rear molding prolongs plate
(11) it is hinged with diamond shape adjustment sheet (10) between, auxiliary adjustment mechanism is equipped in the diamond body of the diamond shape adjustment sheet (10)
(2), the preceding tail prolongs plate (9) and is fixedly mounted on two venturi wainscots (13) and the madial wall of two venturi lower wall panels (14),
The upper and lower ends that the rear molding prolongs plate (11) are fixed with connecting seat (6), and sliding-rail sliding (7), rear molding are equipped on connecting seat (6)
Prolong plate (11) and passes through sliding-rail sliding (7) and the sliding rail on two venturi wainscots (13) and two venturi lower wall panels (14) outer walls
Mounting base (8), which is established, to be connected, and main electric cylinder is also equipped on the outer wall of two venturi wainscots (13) and two venturi lower wall panels (14)
Mounting base (3), main electric cylinder mounting base (3) be equipped with main electric cylinder (1), main electric cylinder (1) by oscillating bearing (5) with connect
Seat (6) establishes connection.
2. a kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel according to claim 1, it is characterised in that：Institute
The diamond shape adjustment sheet (10) stated includes the first adjustment sheet (16), the second adjustment sheet (17), third adjustment sheet (18) and the 4th adjusting
Piece (19), first adjustment sheet (16) and the second adjustment sheet (17) prolong plate (9) by articulated manner and preceding tail and establish connection,
The third adjustment sheet (18) and the 4th adjustment sheet (19) prolongs plate (11) by articulated manner and rear molding and establishes connection, described
First adjustment sheet (16) is hinged with third adjustment sheet (18), and second adjustment sheet (17) is hinged with the 4th adjustment sheet (19),
The first adjustment sheet (16), the second adjustment sheet (17), third adjustment sheet (18) after articulated connection and the formation of the 4th adjustment sheet (19)
Diamond shape is hinged four-bar linkage structure.
3. a kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel according to claim 2, it is characterised in that：Institute
The auxiliary adjustment mechanism (2) stated includes auxiliary electric cylinder (15), auxiliary electric cylinder mounting base (4) and push rod (12), the push rod
(12) it is arranged in the framework that diamond shape adjustment sheet (10) is formed, push rod (12) is by being mounted on auxiliary electric cylinder mounting base (4)
Auxiliary electric cylinder (15) completes pushing action, the auxiliary electric cylinder mounting base (4) be fixedly mounted on two venturi wainscots (13) and
On the lateral wall of two venturi lower wall panels (14).
4. a kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel according to claim 3, it is characterised in that：Institute
The adjustment sheet ontology of the first adjustment sheet (16), the second adjustment sheet (17), third adjustment sheet (18) and the 4th adjustment sheet (19) stated
Centre is groove-like, and when diamond shape adjustment sheet (10) are closed, push rod (12) is in the notch of two adjustment sheets formation.
5. a kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel according to claim 1, it is characterised in that：Institute
The sliding rail mounting base (8) stated includes upper sliding rail mounting base (20) and glidepath mounting base (21), and the connecting seat (6) passes through it
Sliding-rail sliding (7) is installed and is mounted on upper sliding rail mounting base (20) and glidepath mounting base (21) in top and bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092556.3A CN106525381B (en) | 2016-12-02 | 2016-12-02 | A kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092556.3A CN106525381B (en) | 2016-12-02 | 2016-12-02 | A kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN106525381A CN106525381A (en) | 2017-03-22 |
| CN106525381B true CN106525381B (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611092556.3A Active CN106525381B (en) | 2016-12-02 | 2016-12-02 | A kind of Mach number regulating mechanism suitable for transonic and supersonic wind tunnel |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806977B (en) * | 2017-11-29 | 2024-04-09 | 中国航空工业集团公司沈阳空气动力研究所 | Combined wide Mach number high enthalpy pulse wind tunnel tube structure |
| CN107830986B (en) * | 2017-11-29 | 2024-05-07 | 中国航空工业集团公司沈阳空气动力研究所 | Air inlet channel model flow regulating mechanism |
| CN108181080B (en) * | 2017-12-29 | 2019-12-20 | 中国航天空气动力技术研究院 | Position feedback and protection device for adjusting sheet of sub-span super wind tunnel diffusion section |
| CN108362465B (en) * | 2017-12-29 | 2021-11-09 | 中国空气动力研究与发展中心设备设计及测试技术研究所 | Continuous transonic wind tunnel semi-flexible wall surface spray pipe throat block vertical space type electric driving device |
| CN110057537B (en) * | 2019-04-12 | 2021-10-19 | 北京空天技术研究所 | Aircraft aerodynamic performance influence prediction method |
| CN111044249B (en) * | 2019-12-31 | 2020-11-24 | 中国空气动力研究与发展中心高速空气动力研究所 | Method for adjusting step difference of high-speed wind tunnel side wall glass observation window |
| CN112504612A (en) * | 2020-12-29 | 2021-03-16 | 北京航天益森风洞工程技术有限公司 | Two-throat real-time adjustable super-expanding section |
| CN115096540B (en) * | 2022-07-14 | 2022-11-15 | 中国航空工业集团公司沈阳空气动力研究所 | Continuous wind tunnel mach number fine adjustment mechanism |
| CN115031919B (en) * | 2022-08-10 | 2022-11-01 | 中国航空工业集团公司沈阳空气动力研究所 | Continuous wind tunnel two-throat channel |
| CN116519255B (en) * | 2023-03-13 | 2023-09-08 | 中国航空工业集团公司沈阳空气动力研究所 | Mach number accurate control system and method for continuous transonic wind tunnel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60213843A (en) * | 1984-04-09 | 1985-10-26 | Mitsubishi Heavy Ind Ltd | Supersonic-speed wind tunnel |
| CN206378267U (en) * | 2016-12-02 | 2017-08-04 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of Mach number governor motion suitable for transonic and supersonic wind tunnel |
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