CN108106852B - A kind of flange sleeve test stand for rolling-control engine ground firing - Google Patents
A kind of flange sleeve test stand for rolling-control engine ground firing Download PDFInfo
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- CN108106852B CN108106852B CN201711263725.XA CN201711263725A CN108106852B CN 108106852 B CN108106852 B CN 108106852B CN 201711263725 A CN201711263725 A CN 201711263725A CN 108106852 B CN108106852 B CN 108106852B
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- flange sleeve
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- frame
- moving frame
- control engine
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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
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/96—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by specially adapted arrangements for testing or measuring
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
Abstract
The present invention proposes a kind of for rolling the integral flange sleeve test stand of control motivation ground firing, including determines frame, load pier, dynamometry component, flange sleeve moving frame；It further include bracing strut, connecting rod, linearly moving bearing and simple and fast positioning fixture.The present invention is mounted in moving frame using linearly moving bearing, the bearing ball of linearly moving bearing is in point contact with connecting rod, frictional resistance is small, measurement sensitivity is high, it is applied to the thrust measure precision that engine can be improved on test stand, solve the problem of that the installation and debugging of inclined type gimbaled nozzle rolling-control engine are difficult and thrust can not the accurate transmission.It furthermore is that jet pipe rotates during preventing test, design simple and fast positioning fixture, and in order to eliminate the gap between test stand thrust transmitting assembly and load-carrying surface, reduce influence of the concussion to thrust measurement during the impact and test that engine ignition moment generates, design pre-tightens power load maintainer.
Description
Technical field
It is specially a kind of for rolling control hair the present invention relates to solid propellant rocket standing test thrust measurement technical field
The integral flange sleeve test stand of motivation ground firing.
Background technique
The thrust measurement of engine occupies critically important status in solid propellant rocket development process.The rolling control of certain model
Engine uses inclined type gimbaled nozzle, and jet pipe is not on burning chamber axis, and nozzle axis and burning chamber axis are in a clamp
Angle causes thrust to deposit component in the vertical direction and the horizontal direction, tests main measurement horizontal direction thrust.
When due to there are the component of vertical direction, causing using traditional center posture testing program, test stand idler wheel
Compression degree can to test stand resistance generate large effect, installation condition it is inconsistent cause thrust measurement value scattered error compared with
Greatly, the accurate measurement of motor power is affected；It is in a certain angle additionally, due to pipe axis and burning chamber axis, cause using biography
When the center posture testing program of system, jet pipe can be swung, and can not accurately measure horizontal direction thrust.
In addition, when calibrated in situ process before the test, due to the component there are vertical direction act on it is dynamic-determine between frame
Linearly moving bearing on, generate rolling frictional resistance, which can change with the variation of motor power, therefore meeting
Biggish systematic error is generated, it can not effective calibration system error using traditional center posture testing program.
Summary of the invention
In order to solve the problems existing in the prior art, the present invention proposes a kind of for the whole of rolling-control engine ground firing
Body formula flange sleeve test stand, is mounted in moving frame using linearly moving bearing, and bearing ball and the connecting rod of linearly moving bearing are in
Point contact, frictional resistance is small, and measurement sensitivity is high, is applied to the thrust measure precision that engine can be improved on test stand, solves
The installation and debugging of inclined type gimbaled nozzle rolling-control engine are difficult and thrust can not the accurate transmission the problem of.
The technical solution of the present invention is as follows:
A kind of integral flange sleeve test stand for rolling-control engine ground firing, including determine frame, hold
Power pier, dynamometry component, flange sleeve moving frame；Load pier, which is fixedly mounted on, to be determined on frame, and mandril is installed to load by locking nut
On pier, dynamometry component is fixedly and coaxially connected with flange sleeve moving frame, and dynamometry component front end can be withstood on mandril；
It is characterized by also including bracing strut, connecting rod, linearly moving bearing and simple and fast positioning fixtures；
For the flange sleeve moving frame horizontal direction all around altogether there are four trunnion, trunnion is interior to be fixedly mounted linear motion
Bearing, two connecting rods cooperate with the linearly moving bearing in trunnion at left and right sides of flange sleeve moving frame horizontal direction respectively, by method
Blue sleeve moving frame is mounted on two connecting rods, and the bearing ball of linearly moving bearing is in point contact with connecting rod；Connecting rod two end is fixed
It is mounted in the connecting hole of bracing strut, and with nut axial limiting；Bracing strut, which is fixedly mounted on, to be determined on frame；Rolling-control engine burning
Room is mounted in flange sleeve moving frame by adjusting bolt；
By adjusting the adjusting bolt of bracing strut and flange sleeve moving frame, make rolling-control engine burning chamber axis and dynamometry
Arrangement axis is conllinear；And the axis of two connecting rods is made to be in same with rolling-control engine burning chamber axis and dynamometry arrangement axis
Horizontal plane, and be parallel to each other；
The simple and fast positioning fixture has bottom positioning plate and upper end " П " type clamping opening；Bottom positioning plate is fixed on rolling
It controls on engine jet pipe agent localization face, upper end " П " type clamping opening clamps the fixed block at the top of jet pipe；It is positioned by simple and fast
Fixture prevents jet pipe from rotating, and makes nozzle axis and burning chamber axis in same fore-and-aft plane, and angle remains unchanged.
Further preferred embodiment, a kind of integral flange sleeve examination for rolling-control engine ground firing
Test frame, it is characterised in that: further include pre-tightening power load maintainer；The preload power load maintainer is by pretightning force load bracket, preload
Power load adjusts bolt, spacing mandril and spring composition；The pretightning force load bracket, which is fixed on, to be determined on frame；Spacing mandril installation
On pretightning force load bracket, and spacing mandril withstands on rolling-control engine combustion chamber axis direction rear end, and spring pocket is in spacing top
On bar, and compressive state is in by the constraint in limit push rod head portion and pretightning force load bracket；Pretightning force load adjusts bolt peace
Mounted in spacing mandril end.
Further preferred embodiment, a kind of integral flange sleeve examination for rolling-control engine ground firing
Test frame, it is characterised in that: further include limit insurance institution；The limit insurance institution is protected by limit insurance institution's bracket and limit
Dangerous mechanism adjusts bolt composition；Limit insurance institution's bracket, which is fixed on, to be determined on frame；And in flange sleeve moving frame and dynamometry component
Between position, limit insurance institution adjusts bolt and is mounted on limit insurance institution's pedestal upper end, and can be in axial direction to flange
Sleeve moving frame carries out position limitation protection.
Beneficial effect
The present invention proposes a kind of for rolling the integral flange sleeve test stand of control motivation ground firing, and structure is new
Clever rationally installation and debugging are convenient, meet engine performance test needs, solve special construction motor power measurement problem,
Improve thrust measure precision.Linearly moving bearing is normalized, is commercialized, convenient for being selected according to load bearing size
Type advantageously reduces cost, can promote the use of.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1: integral flange sleeve test stand (fire trial state) structure chart；
Wherein: 1, locking nut；2, load pier；3, mandril；4, dynamometry component；5, bolt is connected；6, bolt is adjusted；7, method
Blue sleeve moving frame；8, connecting rod；9, side plate connects bolt；10, nut；11, bracing strut；12, trunnion；13, linearly moving bearing；
14, simple and fast positioning fixture；15, fixture connects bolt；16, pretightning force load adjusts bolt；17, pretightning force loads bracket；
18, spring；19, spacing mandril；20, bracing strut connects bolt；21, determine frame；22, determine the connection bolt on frame and ground；
Fig. 2: integral flange sleeve test stand (combustion chamber axially reinforces calibrated in situ state) structure chart；It is omitted in figure
Bracing strut on the left of moving frame；
Wherein: 23, load pier and the connection bolt for determining frame；24, limit insurance institution adjusts bolt；25, safety is limited
Structure and the connection bolt for determining frame；26, insurance institution is limited；27, standard transducer；28, oil cylinder is reinforced；29, oil cylinder connects bolt；
30, cylinder bracket；31, cylinder bracket and the connection bolt for determining frame；
Fig. 3: integral flange sleeve test stand (jet pipe axially reinforces calibrated in situ state) structure chart；
Fig. 4: flange sleeve moving frame structure chart；
Fig. 5: simple and fast positioning fixture structure figure；(a) main view；(b) side view；
Fig. 6: spring pre-tightens power load maintainer schematic diagram；
Fig. 7: self lubricating linearly moving bearing schematic diagram；
Fig. 8: connecting rod schematic diagram.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
As shown in Figure 1, the integral flange sleeve for rolling-control engine ground firing in the present embodiment is tested
Frame uses horizontal monolithic construction, determines frame 21, load pier 2, dynamometry component 4, flange sleeve moving frame 7.Load pier 2 is fixedly mounted
On determining frame 21, mandril 3 is installed on load pier 2 by locking nut 1, and dynamometry component 4 is coaxial fixed with flange sleeve moving frame 7
Connection, dynamometry component front end can be withstood on mandril.
The characteristics of the present embodiment, is to further include bracing strut 11, connecting rod 8, linearly moving bearing 13 and simple and fast locating clip
Tool 14.
According to the design feature of rolling-control engine, 4 self lubricating linearly moving bearings are used in the present embodiment, are pacified respectively
In the front and back trunnion 12 of 7 left and right sides of flange sleeve moving frame.2 self lubricating linearly moving bearings of every side are opposite two-by-two
Installation.Two connecting rods cooperate with the linearly moving bearing in trunnion at left and right sides of flange sleeve moving frame horizontal direction respectively, by method
Blue sleeve moving frame is mounted on two connecting rods.Connecting rod two end is fixedly mounted in the connecting hole of bracing strut, and is axially limited with nut
Position；Bracing strut, which is fixedly mounted on, to be determined on frame；Rolling-control engine combustion chamber is mounted in flange sleeve moving frame by adjusting bolt.
In structure design, by adjusting the adjusting bolt of bracing strut and flange sleeve moving frame, fire rolling-control engine
It is conllinear with dynamometry arrangement axis to burn chamber axis；And make the axis (center line of linear motion bearing) and rolling control hair of two connecting rods
Motivation burning chamber axis and dynamometry arrangement axis are in same level, and are parallel to each other, the load-carrying surface phase with load pier 2
Vertically.
When engine ignition work, flange sleeve moving frame 7 is driven to pass through the level side on connecting rod 8 of linearly moving bearing 13
To moving freely, thrust is passed into dynamometry component 4, at this point, the bearing ball due to self lubricating linearly moving bearing is in axis
Point contact, frictional resistance very little, it is believed that test the thrust measured and be equal to the component of engine in the horizontal direction.In addition, from moistening
Gliding style linearly moving bearing and connecting rod use Combination Design, and by the moving frame of itself and test stand during installation and debugging for the first time
Over all Integration has been carried out with frame is determined, so that test stand, which becomes, move-determines frame integral structure, the installation tune before avoiding test every time
Examination, solves the problem of that the difficulty of inclined type gimbaled nozzle rolling-control engine installation and debugging and thrust can not be measured accurately, improves
Test efficiency.
During test stand installation and debugging, load pier 2 is determined on frame 21 by connecting bolt 23 and being mounted on, and mandril 3 passes through
Locking nut 1 is installed on load pier 2, and dynamometry component 4 is connect by connection bolt 5 with flange sleeve moving frame 7.Determine frame 21 and uses T-type
Bolt 22 is mounted on testing stand.Bracing strut 11 is determined on frame 21 by connecting bolt 20 and being mounted on.By connecting rod 8 and linear movement
Assembly and engine moving frame 7 that bearing 13 forms and determine frame 21 and connect, 4 linearly moving bearings 13 are mounted on flange sleeve and move
In 4 trunnions 12 of frame 7 all around, the both ends of 2 connecting rods are separately mounted to determine 4 bracing struts 11 of frame all around
In connecting hole, and blocked with nut, in order to avoid play.By debugging, make the axis of 4 linearly moving bearings 13 and dynamometry component 4
It keeps in the same plane horizontal.At this point, except the dynamometry component 4 and mandril 3 and locking nut 1 of front end, test stand at
For an overall structure, installation and debugging will be no longer carried out before test every time.
In order to adapt to the installation and thrust measurement of the not rolling-control engine of joint skirt, moving frame 7 is designed as flange sleeve knot
Structure, as shown in Figure 4.Before test, the engine is connected with flange sleeve moving frame using connection bolt, to make engine
It is coaxial with dynamometry component 4, the level of bolt trace regulation engine axis is adjusted before test with 4.At this point, what engine generated
Thrust can be directly delivered on dynamometry component 4 by flange sleeve moving frame 7, the structure instead of traditional experiment frame moving frame,
Arc-shaped seat and thrust frame simplify motor power transmission link, eliminate thrust transmission error caused by multiple connecting links,
And the passive quality of moving frame is reduced, effectively increase the dynamic characteristic of test stand.
Meanwhile to prevent jet pipe during test from rotating, simple and fast positioning fixture 14, clamp structure such as Fig. 5 are designed.It should
Fixture is right by the positioning plate of clamp base and nozzle body by bolt using the positioning surface on the right side of nozzle body as reference for installation
The positioning surface of side connects, and clamps the fixed block at the top of jet pipe with " П " type clamping opening of fixture upper end, prevents jet pipe from rotating, make jet pipe
Axis and burning chamber axis are in same fore-and-aft plane, and angle remains constant, it is ensured that each installation condition of engine
Consistency.
In order to eliminate the gap between test stand thrust transmitting assembly and load-carrying surface, reduce what engine ignition moment generated
Influence of the concussion to thrust measurement, design pre-tighten power load maintainer during impact and test, as shown in Figure 6.Pretightning force load
Mechanism is adjusted bolt, spacing mandril and spring and is formed by pretightning force load bracket, pretightning force load；The pretightning force loads bracket
It is fixed on and determines on frame；Spacing mandril is mounted on pretightning force load bracket, and spacing mandril withstands on rolling-control engine combustion chamber axis
Line direction rear end, spring pocket are in compression on spacing mandril, and by the constraint in limit push rod head portion and pretightning force load bracket
State；Pretightning force load adjusts bolt and is mounted on spacing mandril end.The mechanism uses spring+mandril+locking nut structure, right
Engine shaft improves the safety of thrust measurement to pretightning force is applied.
In order to further increase test safety, limit insurance institution has also been devised；The limit insurance institution is by limiting
Insurance institution's bracket and limit insurance institution adjust bolt composition；Limit insurance institution's bracket, which is fixed on, to be determined on frame；And it is in method
Position between blue sleeve moving frame and dynamometry component, limit insurance institution adjust bolt and are mounted on limit insurance institution's bracket
End, and position limitation protection can be carried out to flange sleeve moving frame in axial direction.
During actual measurement, force of rolling friction is although small, in order to further increase test accuracy, is carrying out original
When the calibration of position, traditional combustion room shown in Fig. 2 axially reinforcing calibrated in situ cannot be fully relied on, needs to consider frictional force with thrust
Variation, design jet pipe axially reinforcing calibrated in situ device, as shown in Figure 3.
Bearing diagonal, which is fixedly mounted on, to be determined on frame, bearing diagonal top connecting flange plane and engine chamber axis angle etc.
In the inclination angle of canted nozzle axis and engine combustion chamber axis；Cylinder bracket is fixedly mounted on bearing diagonal top connecting flange
On, cylinder bracket upper side is fixedly installed with oil cylinder positioning regulating mechanism；Four side of oil cylinder positioning regulating mechanism end face is equipped with
Attachment lug；Reinforcing oil cylinder is fixedly mounted on oil cylinder positioning regulating mechanism end face, and can pass through oil cylinder positioning regulating mechanism end
The attachment lug on four side of face adjusts reinforcing oil cylinder axial location；It reinforces oil cylinder front end and passes through the coaxially connected standard sensing of cylinder connector
Device；Standard transducer front end passes through spherojoint and jet pipe positioning disk coaxial cooperation；Jet pipe positioning disc buckle goes out mounted in canted nozzle
On mouth end face, the outer ring of jet pipe positioning disk is bonded completely with nozzle contour, and nozzle axis is consistent with jet pipe positioning disk axis.
Before calibration, first jet pipe positioning disk is mounted on the jet pipe of engine, bearing diagonal is passed through into connection bolt installation
On determining frame, cylinder bracket is mounted on the connecting flange of bearing diagonal upper end with connection bolt, is determined oil cylinder with connection bolt
Position regulating mechanism is mounted on cylinder bracket, is mounted on oil cylinder positioning regulating mechanism with bolt is adjusted by oil cylinder is reinforced, then according to
Secondary installation oil cylinder connector, standard transducer and spherojoint, by adjusting oil cylinder positioning regulating mechanism and adjusting bolt, so that ball connects
The crown guarantees that calibrating direction and engine jet pipe are coaxial on the central point of jet pipe positioning disk.
When calibration, the power that reinforcing oil cylinder applies is coaxial with jet pipe, is applied on engine jet pipe, is added by standard transducer
The power that power cylinder applies is measured by standard transducer, and the component in horizontal direction is applied to dynamometry group by engine, moving frame
On part, the thrust data that dynamometry component measures is acquired by data collection system, and the component in vertical direction is applied in moving frame, and
Frictional resistance is generated, which changes, shape when this is tested with engine ignition with the variation of reinforcing oil cylinder applied force
State is almost the same, it is possible to come out moving frame, the error calibration for determining frame and test macro, to eliminate moving frame, determine frame and survey
The systematic error of test system.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (3)
1. a kind of integral flange sleeve test stand for rolling-control engine ground firing, including determine frame, load pier, survey
Power component, flange sleeve moving frame；Load pier, which is fixedly mounted on, to be determined on frame, and mandril is installed on load pier by locking nut, is surveyed
Power component is fixedly and coaxially connected with flange sleeve moving frame, and dynamometry component front end can be withstood on mandril；
It is characterized by also including bracing strut, connecting rod, linearly moving bearing and simple and fast positioning fixtures；
For the flange sleeve moving frame horizontal direction all around altogether there are four trunnion, trunnion is interior to be fixedly mounted linear motion axis
It holds, two connecting rods cooperate with the linearly moving bearing in trunnion at left and right sides of flange sleeve moving frame horizontal direction respectively, by flange
Sleeve moving frame is mounted on two connecting rods, and the bearing ball of linearly moving bearing is in point contact with connecting rod；The fixed peace of connecting rod two end
In the connecting hole of bracing strut, and with nut axial limiting；Bracing strut, which is fixedly mounted on, to be determined on frame；Rolling-control engine combustion chamber
It is mounted in flange sleeve moving frame by adjusting bolt；
By adjusting the adjusting bolt of bracing strut and flange sleeve moving frame, make rolling-control engine burning chamber axis and dynamometry component
Axis collinear；And the axis of two connecting rods is made to be in same level with rolling-control engine burning chamber axis and dynamometry arrangement axis
Face, and be parallel to each other；
The simple and fast positioning fixture has bottom positioning plate and upper end " П " type clamping opening；Bottom positioning plate is fixed on rolling control hair
On motivation nozzle body positioning surface, upper end " П " type clamping opening clamps the fixed block at the top of jet pipe；Pass through simple and fast positioning fixture
It prevents jet pipe from rotating, makes nozzle axis and burning chamber axis in same fore-and-aft plane, and angle remains unchanged.
2. a kind of integral flange sleeve test stand for rolling-control engine ground firing according to claim 1,
It is characterized by also including pre-tighten power load maintainer；The preload power load maintainer is loaded by pretightning force load bracket, pretightning force
Adjust bolt, spacing mandril and spring composition；The pretightning force load bracket, which is fixed on, to be determined on frame；
After spacing mandril is mounted on pretightning force load bracket, and spacing mandril withstands on rolling-control engine combustion chamber axis direction
End, spring pocket are in compressive state on spacing mandril, and by the constraint in limit push rod head portion and pretightning force load bracket；It pre-tightens
Power load adjusts bolt and is mounted on spacing mandril end.
3. a kind of integral flange sleeve test stand for rolling-control engine ground firing according to claim 1,
It is characterized by also including limit insurance institutions；The limit insurance institution is by limit insurance institution's bracket and limit safety
Structure adjusts bolt composition；Limit insurance institution's bracket, which is fixed on, to be determined on frame；And between flange sleeve moving frame and dynamometry component
Position, limit insurance institution adjusts bolt and is mounted on limit insurance institution's pedestal upper end, and can be in axial direction to flange sleeve
Moving frame carries out position limitation protection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263725.XA CN108106852B (en) | 2017-12-05 | 2017-12-05 | A kind of flange sleeve test stand for rolling-control engine ground firing |
| CN201910637480.5A CN110259606B (en) | 2017-12-05 | 2017-12-05 | Thrust in-situ calibration method for axial stress application of inclined spray pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711263725.XA CN108106852B (en) | 2017-12-05 | 2017-12-05 | A kind of flange sleeve test stand for rolling-control engine ground firing |
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| CN201910637480.5A Division CN110259606B (en) | 2017-12-05 | 2017-12-05 | Thrust in-situ calibration method for axial stress application of inclined spray pipe |
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| CN108106852A CN108106852A (en) | 2018-06-01 |
| CN108106852B true CN108106852B (en) | 2019-10-22 |
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| CN201910637480.5A Active CN110259606B (en) | 2017-12-05 | 2017-12-05 | Thrust in-situ calibration method for axial stress application of inclined spray pipe |
| CN201711263725.XA Active CN108106852B (en) | 2017-12-05 | 2017-12-05 | A kind of flange sleeve test stand for rolling-control engine ground firing |
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| CN107907342B (en) * | 2017-12-18 | 2020-01-14 | 西安航天动力测控技术研究所 | In-situ calibration method for realizing axial stress application of inclined spray pipe by utilizing calibration device |
| CN110220712B (en) * | 2019-06-24 | 2020-08-07 | 西北工业大学 | Rocket engine thrust testing arrangement |
| CN110763473A (en) * | 2019-12-02 | 2020-02-07 | 北京航天三发高科技有限公司 | Engine test bed and test method thereof |
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| CN112161813B (en) * | 2020-09-11 | 2023-01-31 | 北京灵动飞天动力科技有限公司 | Mobile micro-friction solid rocket engine thrust measurement system and installation method thereof |
| CN112525538B (en) * | 2020-11-10 | 2023-08-08 | 西安航天动力测控技术研究所 | Solid rocket engine test frame thrust in-situ calibration device and use method |
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| CN112683538B (en) * | 2020-11-30 | 2022-09-16 | 中国航空工业集团公司北京长城航空测控技术研究所 | Solid engine test component force leveling mechanism |
| CN113959727A (en) * | 2021-10-17 | 2022-01-21 | 西安长峰机电研究所 | Thrust testing device and method for radial rail-controlled spray pipe |
| CN113959621B (en) * | 2021-10-31 | 2023-06-16 | 西安航天动力测控技术研究所 | Test method for measuring multi-component force of solid rocket engine by five components |
| CN113959622B (en) * | 2021-10-31 | 2023-08-29 | 西安航天动力测控技术研究所 | Test device for five-component measurement of multi-component force of solid rocket engine |
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| CN110259606B (en) | 2021-07-06 |
| CN110259606A (en) | 2019-09-20 |
| CN108106852A (en) | 2018-06-01 |
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