CN106121859B - A kind of regulating device for wide fast domain structure changes jet pipe - Google Patents
A kind of regulating device for wide fast domain structure changes jet pipe Download PDFInfo
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- CN106121859B CN106121859B CN201610710381.1A CN201610710381A CN106121859B CN 106121859 B CN106121859 B CN 106121859B CN 201610710381 A CN201610710381 A CN 201610710381A CN 106121859 B CN106121859 B CN 106121859B
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- Prior art keywords
- jet pipe
- deformation
- hydraulic cylinder
- bottom plate
- crank
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/06—Varying effective area of jet pipe or nozzle
- F02K1/15—Control or regulation
- F02K1/18—Control or regulation automatic
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of regulating devices for wide fast domain structure changes jet pipe to be symmetrically mounted on nozzle bottom plate top using two sets of identical deflection structures；The head of Telescopic hydraulic cylinder is fixed on the body side plate of jet pipe top, hydraulic cylinder piston rod is connect with long crank one end, one end of the other end and short crank is connected on the hinged shaft of body side plate, the other end of short crank is connect with one end of deformation connecting rod, the other end for deforming connecting rod is connect with deformation truss upper end, and deformation truss lower end is connected on the side plate of aircraft jet pipe bottom plate；Piston rod forms sliding constraint with Telescopic hydraulic cylinder, realizes that jet pipe bottom plate deflects up and down.Regulating device is simple in structure, using jet pipe upper space, when aircraft is in state of flight, according to the stream condition in jet pipe, driving piston rod carries out up and down adjustment to jet pipe lower plate, changes stream condition, improve engine performance, there is good transmission performance and bearing capacity.
Description
Technical field
The present invention relates to hypersonic vehicle scramjet engine fields, specifically, being related to a kind of for wide speed
The regulating device of domain structure changes jet pipe.
Background technology
For the hypersonic vehicle of accelerating type Horizontal Take-off and Landing, needed in practical flight across subsonic speed, transonic speed,
The operating condition in supersonic speed and hypersonic several stages, wide speed domain has the performance of engine very high requirement, it is desirable that starts
Machine provides stable, efficient and as big as possible thrust to aircraft in the case where fuel flow rate is certain.Aircraft is in wide fast domain
When working under flight envelope, due to the difference of inlet flow conditions, the working condition of engine can be also very different, therefore jet pipe
Generally there are three kinds of states for air-flow：It is expanded 1. crossing；2. owing expansion；3. expansion completely.When the state of flight of aircraft is in design
When near point, jet pipe air-flow is in fully expanded state, and engine tends to play outstanding thrust performance, but inclined
When from design point, since jet pipe shape is fixed, and external pressure variation is violent, cause the air-flow sprayed be in owe expansion or
Cross swelling state so that engine performance drastically declines.Therefore it is required to meet the high performance operation of engine, it is necessary to using change
Structure design provides stable performance for engine.
Groove is arranged to improve fixed wings in non-design in German Aachen RWTH researchs on nozzle contour
Performance under operating mode is detached by promoting, can significantly improve static thrust system of jet pipe under the conditions of low static pressure ratio, low mach
Number.This method has stronger practicability under low mach, but when flight Mach number is higher, not outstanding performance.State
Interior scientific research personnel makes absorption slot be in by the multiple absorption slots of body upper face arrangement after aircraft, driving upper cover plate
Be turned on and off state improves engine performance to change the combustion gas degrees of expansion in jet pipe.But this method is mainly used for being promoted
Jet pipe interior flow field under Ejector Mode crosses the working performance under swelling state.
Invention content
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of adjusting for wide fast domain structure changes jet pipe
Device, the regulating device become for wide fast domain hypersonic aircraft nozzle recurring structure in entire flight course
Shape so that under different flight state, improve the atmospheric pressure state of engine jet pipe internal gas flow, it is narrow to efficiently use engine
Sidewall spaces, the load that the force transferring structure of design to act on jet pipe is small, is more easy to play thrust performance.
The technical solution adopted by the present invention to solve the technical problems is:Including Telescopic hydraulic cylinder, long crank, short song
Handle, deformation connecting rod, deformation truss, jet pipe bottom plate are symmetrically mounted on engine using two sets of identical herringbone deflection structures
The head of jet pipe bottom plate upper side, Telescopic hydraulic cylinder is bolted on the body side plate of jet pipe top, can be stretched
The piston rod of contracting hydraulic cylinder is connect with long crank one end by shaft, and one end of the long crank other end and short crank is connected to body
It on the hinged shaft of side plate, and is freely rotated around hinged shaft, with deformation connecting rod one end by fixed axis connection, deformation connects the short crank other end
For the bar other end with deformation truss upper end by stud connection, deformation truss lower end passes through hinge with aircraft jet pipe bottom plate epipleural
Chain link；Piston rod forms sliding constraint with Telescopic hydraulic cylinder, and drives long crank, short crank, deformation connecting rod, deformation truss
It interlocks, realizes that jet pipe bottom plate deflects up and down.
The Telescopic hydraulic cylinder is located at long crank, short crank, deformation connecting rod, deformation truss in same perpendicular.
It is circumferentially with seal groove on the jet pipe bottom plate, sealing is realized by inserting flexible material.
Advantageous effect
A kind of regulating device for the fast domain structure changes jet pipe of width proposed by the present invention, it is hypersonic winged for wide fast domain
Row device nozzle recurring structure in entire flight course deforms so that under different flight state, improves engine
The atmospheric pressure state of jet pipe internal gas flow.Good deformation effect is all had under each operation mode of engine in entire flight course
Fruit preferably plays the performance of engine；Regulating device occupies little space, and can efficiently use the narrow sidewall spaces of engine；
So that the load acted on jet pipe is small, force transferring structure size is small, is more easy to play efficiency in a limited space.
Regulating device of the present invention for wide fast domain structure changes jet pipe, has good transmission performance and bearing capacity,
It is simple in structure, jet pipe upper space is made full use of, while also meeting the constraint of jet pipe sidewall spaces.At the hypersonic vehicle of wide speed domain
When each state of flight, according to the stream condition in aircraft jet pipe, driving piston rod carries out up and down jet pipe lower plate
Deflection is adjusted, and to change stream condition, improves engine performance, has good operability.
Description of the drawings
Make below in conjunction with the accompanying drawings with the embodiment regulating device for wide fast domain structure changes jet pipe a kind of to the present invention
It is further described.
Fig. 1 is the axonometric drawing that regulating device of the present invention is installed on aircraft jet pipe.
Fig. 2 is the front view that regulating device of the present invention is installed on aircraft jet pipe.
Schematic diagram when Fig. 3 makes jet pipe bottom plate upward deflect for regulating device of the present invention.
Schematic diagram when Fig. 4 makes jet pipe bottom plate deflect down for regulating device of the present invention.
Fig. 5 is the regulating device structural schematic diagram of the wide fast domain structure changes jet pipe of the present invention.
In figure:
1. 2. long crank of Telescopic hydraulic cylinder, 3. short crank 4. deforms connecting rod 5. and deforms 6. jet pipe bottom plate of truss
Specific implementation mode
The present embodiment is a kind of regulating device for wide fast domain structure changes jet pipe.For wide fast domain hypersonic flight
Device nozzle recurring structure in entire flight course deforms so that under different flight state, improves engine spray
The pressure state of pipe internal gas flow all has good deformation effect in entire flight course under each operation mode of engine,
Preferably play the performance of engine；Regulating device occupies little space, and can efficiently use the narrow sidewall spaces of engine so that
The load acted on jet pipe is small, and force transferring structure is interior in a limited space to play thrust performance.
Refering to fig. 1~Fig. 5, regulating device of the present embodiment for wide fast domain structure changes jet pipe, by Telescopic hydraulic cylinder
1, long crank 2, short crank 3, deformation connecting rod 4, deformation truss 5, jet pipe bottom plate 6 form；It is inclined using two sets of identical herringbones
Rotation structure is symmetrically mounted on aircraft engine jet pipe bottom plate upper side.The head of Telescopic hydraulic cylinder 1 is solid by bolt
It is scheduled on the body side plate of jet pipe top, 1 piston rod of Telescopic hydraulic cylinder passes through stud connection, long crank 2 with 2 one end of long crank
One end of the other end and short crank 3 is connected on the hinged shaft of body side plate, and is freely rotated around hinged shaft；The other end of short crank 3
With one end of deformation connecting rod 4 by fixed axis connection, the other end of connecting rod 4 and deformation 5 upper end of truss are deformed by stud connection,
Deformation 5 lower end of truss is connected through the hinge with 6 epipleural of aircraft jet pipe bottom plate.Piston rod and the formation of Telescopic hydraulic cylinder 1
Sliding constraint, and long crank 2, short crank 3, deformation connecting rod 4, deformation truss 5 is driven to interlock；Realize about 6 jet pipe bottom plate partially
Turn.
The effect of each component part:
The driving mechanism that about 6 jet pipe bottom plate deflects in order to control in regulating device of Telescopic hydraulic cylinder 1, piston rod with
Telescopic hydraulic cylinder 1 forms sliding constraint；Long crank 2 and short crank 3 are Telescopic hydraulic cylinder 1 and driving tail spray in the mechanism
The bindiny mechanism of the deformation connecting rod 4 of tube bottom plate deflection, mechanism avoid Telescopic hydraulic cylinder 1 from being directly connected to deformation connecting rod 4, to
Jet pipe top body space is made full use of, does not influence nozzle performance, while also it being made not constrained by sidewall spaces；Deform connecting rod
4 directly drive the deflection of jet pipe bottom plate 6 in mechanism, but it is not connected with jet pipe bottom plate 6 directly, but pass through change
Shape truss is connect with jet pipe bottom plate 6, and the mode of being connected through shortens the length of connecting rod, to reduce the sky for occupying jet pipe side wall
Between.
When needing to control 6 deflection of aircraft jet pipe bottom plate, flying vehicles control device provides control instruction driving piston
Bar carries out flexible certain distance in Telescopic hydraulic cylinder 1.When jet pipe bottom plate 6 needs to upward deflect, need to control can
1 piston rod of telescopic hydraulic cylinder is to contract；When jet pipe bottom plate 6 needs to deflect down, 1 piston of Telescopic hydraulic cylinder need to be controlled
Bar stretches out.1 piston rod of subsequent Telescopic hydraulic cylinder pushes long crank 2 to be deflected with short crank 3, and short crank 3 pushes and its phase
Connected deformation connecting rod 4 deflects, and the deformation driving deformation truss 5 of connecting rod 4 controls about 6 jet pipe bottom plate and deflects.
Hypersonic vehicle state of flight residing in flight course in wide speed domain changes greatly, to the need of jet pipe structure changes
Seeking Truth is continually changing；Regulating device by this example for wide fast domain structure changes jet pipe, is given by flying vehicles control device
The distance of stretch out and draw back for going out control instruction control 1 piston rod of Telescopic hydraulic cylinder, realizes the continuous deflection up and down of jet pipe bottom plate 6, changes
Become the stream condition inside jet pipe, to make the wide fast superb engine in domain play good performance.
Claims (3)
1. a kind of regulating device for wide fast domain structure changes jet pipe, it is characterised in that:Including Telescopic hydraulic cylinder, long song
Handle, short crank, deformation connecting rod, deformation truss, jet pipe bottom plate are symmetrically installed using two sets of identical herringbone deflection structures
It is bolted on the body side plate of jet pipe top on the head of jet pipe bottom plate upper side, Telescopic hydraulic cylinder, it can
The piston rod of telescopic hydraulic cylinder is connect with long crank one end by shaft, and one end of the long crank other end and short crank is connected to machine
It on the hinged shaft of side plate, and is freely rotated around hinged shaft, the short crank other end passes through fixed axis connection, deformation with deformation connecting rod one end
With deformation truss upper end by stud connection, deformation truss lower end is connected with jet pipe bottom plate epipleural by hinge the connecting rod other end
It connects；Piston rod forms sliding constraint with Telescopic hydraulic cylinder, and long crank, short crank, deformation connecting rod, deformation truss is driven to connect
It is dynamic, realize that jet pipe bottom plate deflects up and down.
2. the regulating device according to claim 1 for wide fast domain structure changes jet pipe, it is characterised in that:It is described to stretch
Contracting hydraulic cylinder is generally aligned in the same plane interior with long crank, short crank, deformation connecting rod, deformation truss.
3. the regulating device according to claim 1 for wide fast domain structure changes jet pipe, it is characterised in that:The tail spray
It is circumferentially with seal groove on tube bottom plate, sealing is realized by inserting flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710381.1A CN106121859B (en) | 2016-08-23 | 2016-08-23 | A kind of regulating device for wide fast domain structure changes jet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710381.1A CN106121859B (en) | 2016-08-23 | 2016-08-23 | A kind of regulating device for wide fast domain structure changes jet pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106121859A CN106121859A (en) | 2016-11-16 |
| CN106121859B true CN106121859B (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610710381.1A Active CN106121859B (en) | 2016-08-23 | 2016-08-23 | A kind of regulating device for wide fast domain structure changes jet pipe |
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| CN (1) | CN106121859B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431694B (en) * | 2020-11-20 | 2021-11-05 | 哈尔滨工程大学 | Expandable spray pipe using flexible material and external truss structure |
| CN116220940A (en) * | 2023-05-04 | 2023-06-06 | 西安航天动力研究所 | Wide-range adjustable spray pipe |
| CN117022656B (en) * | 2023-09-05 | 2024-03-01 | 浙江弘飞空天科技有限公司 | Tail nozzle device suitable for high-speed stealth unmanned aerial vehicle and airflow adjusting method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5102050A (en) * | 1991-01-22 | 1992-04-07 | General Electric Company | Divergent flap actuation system for two-dimensional convergent - divergent turbojet exhaust nozzle |
| US5586431A (en) * | 1994-12-06 | 1996-12-24 | United Technologies Corporation | Aircraft nacelle ventilation and engine exhaust nozzle cooling |
| US6299077B1 (en) * | 1999-12-18 | 2001-10-09 | United Technologies Corporation | Actuation system for convergent/divergent nozzle |
| CN2428402Y (en) * | 1999-12-30 | 2001-05-02 | 王建军 | Universal vector spraying tube |
| CN201580565U (en) * | 2010-01-22 | 2010-09-15 | 顾祝平 | Platform vehicle for assembling and disassembling tail pipe nozzle of engine |
| CN103423027A (en) * | 2013-08-09 | 2013-12-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Two-dimensional thrust vectoring nozzle expanding section control mechanism |
| CN103993983B (en) * | 2014-04-24 | 2016-01-13 | 北京航空航天大学 | Parallel feed formula rear culvert channel injector in a kind of variable cycle engine adjusting mechanism |
| CN104033275B (en) * | 2014-06-09 | 2016-02-17 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of two-dimensional nozzle converging portion control mechanism |
| CN104033278B (en) * | 2014-06-09 | 2016-03-30 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of two-dimensional nozzle throat area control mechanism |
| CN105041507A (en) * | 2015-07-09 | 2015-11-11 | 中国航空工业集团公司沈阳发动机设计研究所 | Two-dimensional nozzle |
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| CN106121859A (en) | 2016-11-16 |
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| CB03 | Change of inventor or designer information |
Inventor after: Gong Chunlin Inventor after: Chen Bing Inventor after: Shi Xiangpeng Inventor after: Gu Liangxian Inventor after: Fan Jianping Inventor after: Zhu Zhengguang Inventor after: Dai Cunxi Inventor after: Zhang Yunwei Inventor after: Zhang Xiaonan Inventor before: Gong Chunlin Inventor before: Shi Xiangpeng Inventor before: Chen Bing Inventor before: Gu Liangxian Inventor before: Fan Jianping Inventor before: Zhu Zhengguang Inventor before: Dai Cunxi Inventor before: Zhang Yunwei Inventor before: Zhang Xiaonan |
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Effective date of registration: 20200110 Address after: 710072 No.127 Youyi West Road, Xi'an, Shaanxi Province Co-patentee after: Beijing Electronic Engineering General Research Institute Patentee after: Northwest University of Technology Address before: 710072 Xi'an friendship West Road, Shaanxi, No. 127 Patentee before: Northwest University of Technology |
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