CN107764508B - Free flight model jet experimental rig - Google Patents
Free flight model jet experimental rig Download PDFInfo
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- CN107764508B CN107764508B CN201711083970.2A CN201711083970A CN107764508B CN 107764508 B CN107764508 B CN 107764508B CN 201711083970 A CN201711083970 A CN 201711083970A CN 107764508 B CN107764508 B CN 107764508B
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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
- G01M9/08—Aerodynamic models
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Abstract
A kind of free flight model jet experimental rig, including dummy head (1), model interlude (2), model endpiece (3) etc.；Dummy head (1), model interlude (2), model endpiece (3) are sequentially connected, and dummy head (1) inner cavity, model interlude (2) inner cavity, model endpiece (3) inner cavity are connected to form mould impression；Inner cavity blind hole is provided on mould impression wall, spout correction of the flank shape block (10) is mounted in dummy head (1), model interlude (2) or model endpiece (3) on any one section of outer wall, spout correction of the flank shape block (10) mounting hole is connected to inner cavity blind hole, compressed gas cylinder (4), jet mechanism are mounted in mould impression, gas is generated by jet mechanism controls compressed gas cylinder (4), spout correction of the flank shape block (10) sprays under gas effect.The problem of present invention solves the disadvantage that previous free flight model not and can be carried out the test of active Flow Control class, overcomes gas source installation, guidance, triggers.
Description
Technical field
The present invention relates to a kind of model in wind tunnel more particularly to a kind of free flight model jet experimental rigs.
Background technique
Gas puff Z-pinch is a kind of common active Flow Control mode, usually in the model table for needing to be improved flow field quality
Face opens up puff prot, sprays gas to aircraft exterior as needed, thus the flow field mechanism on change of flight device surface, for flight
Device provides additional aerodynamic force and torque, and in aerospace field, jet-propelled Active Control Method is a popular research class
Topic.Model free flight wind tunnel test is a kind of research method of common exploratory flight device unsteady aerodynamic characteristic, with no support
The unique features of interference are different from other permanent and pseudo steady research techniques.The basic skills of model free flight wind tunnel test is
Flow Field in Wind Tunnel pops up model inversion airflow direction high speed after stablizing, can the unconfined free flight in wind-tunnel in the model short time
Row, while model is shot by observation window using high-speed photography, it can get the posture track of dummy vehicle free flight,
Later period can obtain the dynamic aerodynamic parameter of aircraft by data processing.
Common gas puff Z-pinch model gas source comes from air compressor or high pressure gas cylinder, is inserted into model using snorkel
Compressed gas is led on test model the position for needing jet by portion, due to compressor or bulky, is generally positioned at model
Outside wind-tunnel.And wind tunnel free-flight model be during the test it is entirely free on his, carry out free flight model jet test when,
A snorkel insertion model can not be provided to gas source outside model as the test of previous jet, and must be by gas source
It is mounted on inside model.Common wind tunnel free-flight model is often smaller, and size is suitable with ball pen, how to arrange that gas source is one
Difficult point.Meanwhile testing and carrying out jet movement when needing model completely free, the unlock of jet is also a big difficulty of design.
Summary of the invention
The technical problems to be solved by the present invention are: having overcome the deficiencies of the prior art and provide a kind of free flight model spray
Gas experimental rig solves the disadvantage that previous free flight model not and can be carried out the test of active Flow Control class, compressed gas source is pacified
Inside model, the problem of overcoming gas source installation, guidance, trigger.
The adopted technical solution is that: a kind of free flight model jet experimental rig, including dummy head,
Model interlude, model endpiece, compressed gas cylinder, jet mechanism, spout correction of the flank shape block；Dummy head, model interlude, model endpiece
It is sequentially connected, dummy head inner cavity, model interlude inner cavity, model endpiece inner cavity are connected to form mould impression；Mould impression wall
On be provided with inner cavity blind hole, spout correction of the flank shape block is mounted on any one section in dummy head, model interlude or model endpiece of outer wall
On, spout correction of the flank shape block mounting hole is connected to inner cavity blind hole, and compressed gas cylinder, jet mechanism are mounted in mould impression, passes through jet
Mechanism controls compressed gas cylinder generates gas, and spout correction of the flank shape block sprays under gas effect.
The jet mechanism includes striker, bullet block, spring, bullet block fixed block, pulls pin, guide wire, guide wire fixed block；It leads
Skirt fixed block is mounted on inner cavity blind hole open end；Compressed gas cylinder is mounted in mould impression, and end is fixed in model endpiece
In the centre bore of partition in chamber；Bullet block fixed block outer wall and model endpiece inner wall cooperate, and are fixed in model endpiece；Bullet block peace
Between partition in bullet block fixed block and model endpiece inner cavity, bullet block outer wall and model endpiece inner wall cooperate, bullet block end face
It is provided with the bullet block through-hole along central axis and radial direction, bullet block through-hole is connected to bullet block end face and side wall surface, and striker is mounted on bullet block, position
In bullet block through-hole in the open end of bullet block end face, the centre bore of striker syringe needle is connected to bullet block through-hole, and the elastic slice end of bullet block is inserted
Enter in bullet block fixed block centre bore；It pulls pin in one end insertion elastic slice, struts each elastic slice and make in elastic slice end and bullet block fixed block
The port clamping of heart hole, the other end connect line of pulling pin；For spring pocket on elastic slice, both ends are separately connected bullet block sliding block, bullet block fixed block；
Guide wire one end is inserted into guide wire fixed block centre bore, and the other end is inserted into bullet block through-hole in the open end of bullet block side wall, connection
Dummy head blind hole and bullet block through-hole；By pulling pin, line is pulled pin, and discharges bullet block, and bullet block drives striker to insert under spring promotion
Enter compressed gas cylinder, discharges gas.
The bullet block fixed block includes cylindrical structure, annular end face；Annular end face is located at cylindrical structure one end, annular end face
The centre bore port edge at middle part has chamfering.
The bullet block includes sliding block, elastic slice, and sliding block is cross, and sliding block outer wall and model endpiece inner wall cooperate, sliding block one
End end face is provided with bullet block through-hole, bullet block through-hole in the open end of bullet block side wall in sliding block cross two-arm angle, other end end
Middle face is circumferentially distributed a elastic slice, and there is elastic slice boss in elastic slice end, and elastic slice inner surface is bullet block tapered slope, elastic slice boss
Inclined-plane can form contact of incline plane cooperation with the chamfering of bullet block fixed block centre bore.
Described to pull pin including conical section, connecting pin, connecting pin is located at cone section big end, and connecting pin is connect with line of pulling pin, circular cone
The outer conical surface and cone block tapered slope cooperation of section.
Model endpiece through-hole is provided on partition in model endpiece inner cavity, guide wire is passed through from model endpiece through-hole.
Further include sealing ring, seals snare on striker syringe needle, cooperate with compressed gas cylinder bottleneck.
The advantages of the present invention over the prior art are that:
(1) present invention uses the mountable Mini compressed gas cylinder inside model, solves the jet gas of free flight model
Source problem.The test of free flight jet carries out jet movement when needing model completely free, therefore gas source can not be as previous jet
Test is equally imported gas source inside model using snorkel, and need to be integrated gas source and modelling, using compressed gas cylinder
Mode solve this problem.Compressed gas cylinder is designed to a part of model, is fixedly connected with model, to solve certainly
By the problem for flying model injection gas source；
(2) present invention passes through hollow striker and seal washer, it is ensured that model is sprayed in entirely free on his situation
It is pneumatic to make, reach design requirement.The present invention solve the problems, such as how at the time of needing by gas export compressed gas cylinder, by
Higher in gas pressure in compressed gas cylinder, air entraining device triggering must be quick, and has preferable leakproofness, can prevent high pressure gas
Leakage.It is pulled pin using spring firing pin and rear, it is ensured that model triggers jet mechanism in entirely free on his situation, solves mould
When type is free, the triggering problem of mechanism；
(3) present invention by guide wire fixed block guarantees that spout may be provided at model any position, and when can prevent jet
Air jet pipe, which is not fixed, causes pipeline to be extracted caused test failure.The position of jet flowing control is unfixed, Ke Neng
Dummy head, it is also possible at model wing or in model tail portion, all jet positions can be met using guide wire fixed block
It sets.Compared with long soft-pipe when carrying out jet since active force and reaction force principle will cause to lash phenomenon, jet pipeline is consolidated
Determine block, while there is air jet pipe test failure caused by extracting out from nozzle when preventing jet；
(4) present invention is by setting reverse thread, so that model is easier for installation, avoiding causes because tightening model
The problem of model internal duct knots.Dummy head is fixed in jet pipeline one end, and one end is fixed at gas cylinder, and gas cylinder is often
Positioned at model tail portion, if primary threaded connection is used only, when pipeline is fixed and tightens screw thread, inherently make inside model
Pipeline is twisted therewith together, so that pipeline be made to knot, air-flow is unsmooth when causing jet, even results in test failure.And it is of the invention
By installing reverse thread section between in a model additional, when need to only adjust pipeline, installation before model installation fixed model head and
Tail portion is motionless, rotating model interlude, can be good by model integral installation, and model internal duct relative position will not change
Become, it is entirely avoided the problem of pipeline knots；
(5) present invention solves the feelings of previous model shape defect at jet fore nozzle by setting spout correction of the flank shape block
Condition.In the past when carrying out jet test, nozzle exit area shape is fixed and invariable, this is not inconsistent with truth.Present invention design
Spout correction of the flank shape block, keeps model shape before carrying out jet consistent with not jet mode shape, improves the authenticity of test.
Detailed description of the invention
Fig. 1 is model entirety isometric views of the invention；
Fig. 2 is complete section isometric views before triggering after Model Mounting of the invention is good；
Fig. 3 is complete section isometric views after model triggering of the invention；
Fig. 4 is main component complete section explosive view of the invention；
Fig. 5 is main component explosive view of the invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
Free flight model jet experimental rig includes dummy head 1, model interlude 2, model endpiece 3, compressed gas cylinder 4,
Striker 5, bullet block 6, spring 7, bullet block fixed block 8, pull pin 9, spout correction of the flank shape block 10, sealing ring 11, guide wire 12, guide wire are fixed
Block 13；
Model is integrally divided into three sections, respectively dummy head 1, model interlude 2 and model endpiece 3.Dummy head 1,
Model interlude 2, model endpiece 3 are sequentially connected, 1 inner cavity of dummy head, 2 inner cavity of model interlude, the connection of 3 inner cavity of model endpiece
Mould impression is formed, is provided with inner cavity blind hole on internal chamber wall, guide wire fixed block 13 is mounted on inner cavity blind hole open end, spout correction of the flank shape
Block 10 is mounted on model side wall, and the mounting hole of spout correction of the flank shape block 10 is connected to inner cavity blind hole cecum；
Compressed gas cylinder 4 is mounted in mould impression, and end is fixed on the centre bore 3-1 of the partition in 3 inner cavity of model endpiece
It is interior；8 outer wall of bullet block fixed block and 3 inner wall of model endpiece cooperate, and are fixed in model endpiece 3；Bullet block 6 is mounted on bullet block fixed block
8 and 3 inner cavity of model endpiece in partition between, 6 outer wall of bullet block and 3 inner wall of model endpiece cooperate, and 6 end face of bullet block is provided with along center
The bullet block through-hole of axis and radial direction, bullet block through-hole are connected to 6 end face of bullet block and side wall surface, and striker 5 is mounted on bullet block 6, is located at bullet block
In the open end 6-3 of 6 end face of bullet block, the centre bore of striker syringe needle 5-1 is connected to through-hole with bullet block through-hole, the end elastic slice 6-5 of bullet block 6
Portion is inserted into 8 centre bore of bullet block fixed block；It pulls pin in 9 one end insertion elastic slice 6-5, struts each elastic slice 6-5 and make the end elastic slice 6-5
With the 8 centre bore port clamping of bullet block fixed block, the other end connects line of pulling pin；7 sets of spring on elastic slice 6-5, both ends are separately connected
6 sliding block of bullet block, bullet block fixed block 8；12 one end of guide wire is inserted into guide wire fixed block centre bore 13-4, and the other end is inserted into bullet block
Through-hole is connected to dummy head blind hole 1-2 and bullet block through-hole in the open end 6-2 of bullet block side wall；9 are pulled pin by line of pulling pin,
Bullet block 6 is discharged, bullet block 6 drives striker 5 to be inserted into compressed gas cylinder 4, discharges gas under the promotion of spring 7, and spout correction of the flank shape block 10 is spraying
It is moved under gas effect to outside model.11 sets of sealing ring on striker syringe needle 5-1, cooperate with 4 bottleneck of compressed gas cylinder.
Bullet block fixed block 8 includes cylindrical structure, annular end face；Annular end face is located at cylindrical structure one end, in annular end face
The centre bore port edge in portion has chamfering 8-1.Bullet block 6 includes sliding block, elastic slice 6-5, and sliding block is cross, sliding block outer wall and model
The cooperation of 3 inner wall of endpiece, sliding block one end end face are provided with bullet block through-hole, bullet block through-hole bullet block side wall open end 6-2 in sliding block ten
In font two-arm angle, circumferentially distributed in the middle part of the other end face to have 4 elastic slice 6-5, there is elastic slice boss 6-1 in the end elastic slice 6-5,
Elastic slice 6-5 inner surface is bullet block tapered slope 6-4, and the inclined-plane elastic slice boss 6-1 can be with the chamfering 8-1 shape of bullet block fixed block centre bore
Cooperate at contact of incline plane.Pulling pin 9 includes conical section, connecting pin, and connecting pin is located at cone section big end, and connecting pin connect with line of pulling pin,
The outer conical surface 9-1 of conical section and cone block tapered slope 6-4 cooperation.Model endpiece is provided on partition in 3 inner cavity of model endpiece
Through-hole 3-2, guide wire 12 are passed through from model endpiece through-hole 3-2.
Guide wire fixed block 13 may be provided at model any position so that jet flowing control position be it is unfixed,
It may be in dummy head, it is also possible at model wing or in model tail portion, can be met using guide wire fixed block 13 all
Jet position.
Embodiment:
In the present embodiment, free flight model jet experimental rig is by notch setting in dummy head 1.Dummy head 1 is cone
Shape, conical surface are cambered surface, model interlude 2, model endpiece 3 be it is columnar structured, 3 tail portion of model endpiece has empennage；
It is provided with dummy head blind hole 1-2 along central axis on the end face of 1 inner cavity of dummy head, 1 side wall of dummy head is provided with dummy head platform
Rank hole 1-1, dummy head stepped hole 1-1 are connected to dummy head blind hole 1-2 cecum, and spout correction of the flank shape block 10 is mounted on dummy head
In stepped hole 1-1, compressed gas cylinder 4, jet mechanism are mounted in mould impression, are generated by jet mechanism controls compressed gas cylinder 4
Gas, spout correction of the flank shape block 10 is under gas effect to 1 movement outside of dummy head.Guide wire fixed block 13 is mounted on dummy head
The open end blind hole 1-2.
There are dummy head stepped hole 1-1, dummy head blind hole 1-2 on dummy head 1, dummy head stepped hole 1-1 is also
The nozzle exit area of this secondary design.Spout correction of the flank shape block 10 can be put into dummy head stepped hole 1-1, and form cooperation, only allow to spray
Mouthful correction of the flank shape block 10 is to model movement outside.There is screw thread in dummy head blind hole 1-2, it can be with the external screw thread of guide wire fixed block 13
13-3 cooperation, there are two guide wire fixed block notch 13-2 for guide wire fixed block 13, are lacked using tool rotation guide wire fixed block
Guide wire fixed block 13 can be fixed on dummy head 1 by mouth 13-2.Guide wire fixed block 13 has guide wire fixed block centre bore
13-4, guide wire 12 can inject guide wire fixed block 13 by guide wire fixed block centre bore 13-4, and guide wire fixed block 13 has
Guide wire fixed block blind hole 13-1, after guide wire 12 injects guide wire fixed block 13, in guide wire fixed block blind hole 13-1
Guide wire 12 and guide wire fixed block 13 can be fixed together by filling glue.
12 other end of guide wire is inserted into inside the bullet block blind hole 6-2 of bullet block 6, is equally connected using glue.Simultaneously on bullet block 6
Have 4 elastic slice 6-5, there is elastic slice boss 6-1 in the end elastic slice 6-5, and inner surface is bullet block tapered slope 6-4, can with pull pin 9 outer circle
Conical surface 9-1 cooperation.There is bullet block tapped blind hole 6-3 on bullet block 6, there is striker external screw thread 5-2 in the outer surface of striker 5, can be with bullet block spiral shell
Line blind hole 6-3 cooperation, so that striker 5 and bullet block 6 are fixed together.Striker 5 has hollow striker syringe needle 5-1.
There is bullet block fixed block 8 on rear side of bullet block 6, bullet block fixed block 8 has bullet block fixed block external screw thread 8-2, can be with model endpiece 3
Model endpiece internal screw thread 3-3 cooperation, 4 elastic slice 6-5 can be inserted into 8 interstitial hole of bullet block fixed block, and elastic slice boss 6-1 is oblique
Face can form contact of incline plane cooperation with bullet block fixed block center Hole chamfering 8-1.
There is partition in 3 inner cavity of model endpiece, the centre bore 3-1 of partition is threaded hole, can be by the compressed gas cylinder of compressed gas cylinder 4
Thread head 4-1 is screwed on model endpiece 3.Model interlude 2 has model interlude external screw thread 2-1 and model interlude internal screw thread 2-
2, model interlude external screw thread 2-1 and model interlude internal screw thread 2-2 are reverse thread, model interlude external screw thread 2-1 and mould
Type head 1 cooperates, and model interlude internal screw thread 2-2 and model endpiece 3 cooperate, to guarantee dummy head 1, model interlude 2
And model endpiece 3 links together.
Before on-test, bullet block 6 and striker 5 are threaded togather, by 12 one end of guide wire and 6 glue connection of bullet block one
It rises, by 11 sets of sealing ring on striker syringe needle 5-1,12 other end of guide wire is passed through to the model endpiece through-hole 3-2 of model endpiece 3
Model endpiece 3 is forward extended out, bullet block 6 is inside model tail portion insertion model endpiece 3, will by 7 sets of spring on the outside of elastic slice 6-5
Bullet block fixed block 8 is screwed into model endpiece 3, pushes bullet block 6 to transport to model tail portion by model endpiece through-hole 3-2 using screwdriver
It is dynamic, and compressed spring 7, until the inclined-plane elastic slice boss 6-1 and bullet block fixed block center Hole chamfering 8-1 form contact of incline plane cooperation,
It will pull pin 9 insertion bullet block tapered slope 6-4 from model tail portion, thus locking device.Compressed gas cylinder 4 is screwed on model endpiece 3.
By 12 extension end of guide wire and 13 glue connection of guide wire fixed block, guide wire fixed block 13 passes through model interlude 2 and is screwed in model
On head 1, and spout correction of the flank shape block 10 is filled in into dummy head stepped hole 1-1.Finally, adjusting the guarantee of 12 front-rear position of guide wire
Pipeline is unobstructed, fixes dummy head 1 and model endpiece 3, and rotating model interlude 2 is by dummy head 1, model interlude 2
And model endpiece 3 links together, model installs.
When on-test, will pull pin 9 is connected on wind-tunnel by line of pulling pin, another to use after Flow Field in Wind Tunnel is set up
Model emitter into flow field, due to the length limitation for line of pulling pin, pulls pin model overall emission when model moves forward to
When the line length limit, 9 are pulled pin by the extraction inside model, so that bullet block 6 drives striker 5 forward under the impetus of spring 7
Movement, which is hit, wears 4 head thinner region of compressed gas cylinder, and due to the effect of sealing ring 11, makes the high pressure gas inside compressed gas cylinder 4
Body is introduced to nozzle exit area by guide wire 12.When start spray gas, it is no longer necessary to spout correction of the flank shape block 10, due to pressure make
With spout correction of the flank shape block 10 is sprayed outward, while air-flow sprays outward from spout, reaches the jet effect of test requirements document, is tested
It finishes.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
It is not described in detail in description of the invention and partly belongs to common sense well known to those skilled in the art.
Claims (6)
1. a kind of free flight model jet experimental rig, which is characterized in that including dummy head (1), model interlude (2), mould
Type endpiece (3), compressed gas cylinder (4), jet mechanism, spout correction of the flank shape block (10)；Dummy head (1), model interlude (2), model
Endpiece (3) is sequentially connected, and dummy head (1) inner cavity, model interlude (2) inner cavity, model endpiece (3) inner cavity are connected to form model
Inner cavity；Be provided with inner cavity blind hole on mould impression wall, spout correction of the flank shape block (10) be mounted on dummy head (1), model interlude (2) or
In model endpiece (3) on any one section of outer wall, spout correction of the flank shape block (10) mounting hole is connected to inner cavity blind hole, compressed gas cylinder (4),
Jet mechanism is mounted in mould impression, generates gas by jet mechanism controls compressed gas cylinder (4), spout correction of the flank shape block (10) exists
Gas effect is lower to be sprayed；
The jet mechanism includes striker (5), bullet block (6), spring (7), bullet block fixed block (8), pull pin (9), guide wire (12),
Guide wire fixed block (13)；Guide wire fixed block (13) is mounted on inner cavity blind hole open end；Compressed gas cylinder (4) is mounted in model
In chamber, end is fixed in the centre bore (3-1) of the partition in model endpiece (3) inner cavity；Bullet block fixed block (8) outer wall and model
The cooperation of endpiece (3) inner wall, is fixed in model endpiece (3)；Bullet block (6) is mounted in bullet block fixed block (8) and model endpiece (3)
Between partition in chamber, bullet block (6) outer wall and model endpiece (3) inner wall cooperate, and bullet block (6) end face is provided with along central axis and radial direction
Bullet block through-hole, bullet block through-hole is connected to bullet block (6) end face and side wall surface, and striker (5) is mounted on bullet block (6), it is logical to be located at bullet block
Hole is connected in the open end (6-3) of bullet block (6) end face, the centre bore of striker syringe needle (5-1) with bullet block through-hole, the bullet of bullet block (6)
The piece end (6-5) is inserted into bullet block fixed block (8) centre bore；It pulls pin in (9) one end insertion elastic slice (6-5), struts each elastic slice (6-
5) make the elastic slice end (6-5) and bullet block fixed block (8) centre bore port clamping, the other end connects line of pulling pin；Spring (7) covers
On elastic slice (6-5), both ends are separately connected bullet block (6) sliding block, bullet block fixed block (8)；It is solid that guide wire is inserted into guide wire (12) one end
Determine in block centre bore (13-4), the other end is inserted into bullet block through-hole in the open end (6-2) of bullet block side wall, is connected to dummy head blind hole
(1-2) and bullet block through-hole；It is pulled pin (9), is discharged bullet block (6) by line of pulling pin, bullet block (6) drives in the case where spring (7) push
Striker (5) is inserted into compressed gas cylinder (4), discharges gas.
2. a kind of free flight model jet experimental rig according to claim 1, it is characterised in that: the bullet block fixed block
It (8) include cylindrical structure, annular end face；Annular end face is located at cylindrical structure one end, the centre bore port side in the middle part of annular end face
Edge has chamfering (8-1).
3. a kind of free flight model jet experimental rig according to claim 2, it is characterised in that: bullet block (6) packet
Sliding block, elastic slice (6-5) are included, sliding block is cross, and sliding block outer wall and model endpiece (3) inner wall cooperate, and sliding block one end end face is provided with
Bullet block through-hole, bullet block through-hole in the open end (6-2) of bullet block side wall in sliding block cross two-arm angle, in the middle part of the other end face
Circumferentially distributed to have 4 elastic slices (6-5), the end elastic slice (6-5) has elastic slice boss (6-1), and elastic slice (6-5) inner surface is bullet block cone
Shape inclined-plane (6-4), the inclined-plane elastic slice boss (6-1) can form contact of incline plane cooperation with the chamfering (8-1) of bullet block fixed block centre bore.
4. a kind of free flight model jet experimental rig according to claim 3, it is characterised in that: described (9) packet of pulling pin
Include conical section, connecting pin, connecting pin is located at cone section big end, and connecting pin is connect with line of pulling pin, the outer conical surface (9-1) of conical section and
Bullet block tapered slope (6-4) cooperation.
5. a kind of free flight model jet experimental rig according to claim 2, it is characterised in that: the model endpiece
(3) model endpiece through-hole (3-2) is provided on the partition in inner cavity, guide wire (12) is passed through from model endpiece through-hole (3-2).
6. a kind of free flight model jet experimental rig according to claim 2, it is characterised in that: further include sealing ring
(11), sealing ring (11) covers on striker syringe needle (5-1), cooperates with compressed gas cylinder (4) bottleneck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711083970.2A CN107764508B (en) | 2017-11-07 | 2017-11-07 | Free flight model jet experimental rig |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711083970.2A CN107764508B (en) | 2017-11-07 | 2017-11-07 | Free flight model jet experimental rig |
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| Publication Number | Publication Date |
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| CN107764508A CN107764508A (en) | 2018-03-06 |
| CN107764508B true CN107764508B (en) | 2019-05-24 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109100110B (en) * | 2018-08-10 | 2020-05-12 | 中国航天空气动力技术研究院 | Be applied to two throat thrust vectoring nozzle support arm device of ventilating |
| CN109632253B (en) * | 2018-12-10 | 2021-02-09 | 中国航天空气动力技术研究院 | Model device for rotary body jet flow force measurement test |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003065890A (en) * | 2001-08-23 | 2003-03-05 | Mitsubishi Heavy Ind Ltd | Wind tunnel device |
| CN102305699A (en) * | 2011-05-19 | 2012-01-04 | 北京航空航天大学 | Wind tunnel experiment system for free flight model |
| CN203732238U (en) * | 2014-03-25 | 2014-07-23 | 哈尔滨工业大学 | Ventilation device for underwater supercavitation navigation body scaled model test |
| CN104534944B (en) * | 2014-12-11 | 2016-03-02 | 中国航天空气动力技术研究院 | The full free flight wind tunnel test mechanism of sub-munition separation |
| CN106932169B (en) * | 2017-03-16 | 2018-11-09 | 大连理工大学 | A kind of revolution is ventilated the air-breather tested into water |
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