CN104977148B - The detection means and method of test chamber angle of attack mechanism pivot - Google Patents
The detection means and method of test chamber angle of attack mechanism pivot Download PDFInfo
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- CN104977148B CN104977148B CN201510459287.9A CN201510459287A CN104977148B CN 104977148 B CN104977148 B CN 104977148B CN 201510459287 A CN201510459287 A CN 201510459287A CN 104977148 B CN104977148 B CN 104977148B
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Abstract
The present invention relates to the detection means and method of test chamber angle of attack mechanism pivot, detection means includes the support location structure with horizontal extensions, support location structure is provided with the guide frame that horizontal extensions can be made to make vertical shift, the elongated end of horizontal extensions is provided with detection location structure, and corresponding with the detection location structure is arranged at the tulwar support plate of test chamber angle of attack mechanism the measurement apparatus that can make positive negative angle of attack arcuate movement with tulwar support plate.The detection means and method of test chamber angle of attack mechanism pivot of the present invention, make measurement process more directly perceived, simple and direct, and it is small to have set up out error, stability benchmark high, obviously shorten the implementation cycle, operating personnel are reduced, labour intensity is reduced, the cost of each side is greatly saved.
Description
Technical field
The present invention relates to the detection means and method of test chamber angle of attack mechanism pivot.
Background technology
In aerospace field, many flying qualities are required for first passing through wind-tunnel facilities and carry out the mould of high-altitude and the outer space
Intend experiment to obtain.A crucial section in wind-tunnel is test section, and the core apparatus of the inside of test section are angle of attack mechanism, are passed through
Angle of attack mechanism detects that can the effective utilization of wind-tunnel reliably for the development of aircraft is accurately shaped, and its effect is irreplaceable.
Angle of attack mechanism is in the middle part of test section, as shown in figure 1, being included in angle of attack mechanism by upper bracket 11, the and of middle bracket 12
The tulwar support plate 1 that lower bracket 13 is constituted, tulwar support plate 1 is held in upper and lower track frame.Aircraft is scaled to be fabricated to
After test model, first on high-precision standard pole, then the middle bracket that tulwar support plate 1 is injected together with standard pole set
Fixed in 12 centre bores, under the oil cylinder pushing in the frame that gets on the right track, angle of attack mechanism is along the accurate arc guide rail in upper and lower track frame
In test section against wind-tunnel in the temporary punching that discharges or continuous flow, make the accurately positive and negative angle of attack along the direction of arrow in Fig. 1
Running.
Above-mentioned tulwar support plate positive negative angle of attack running refer to using the vertical elevation parallel to wind-tunnel axis as weigh base
Standard, around the center of circle being on wind-tunnel axis, the circular motion made in the vertical guide where wind-tunnel axis (such as Fig. 1 arrows
Shown in head).In test section installation process, its upper and lower rails frame assembly precision is higher, and circular arc of the angle of attack mechanism in its both sides is led
Make pivot when circular arc runs under rail clamping just closer to theoretical place-centric, then, it is installed on tulwar support plate 1
The aerodynamic data that dummy vehicle in middle bracket 12 is collected in wind tunnel simulation flow field by sophisticated sensor just more connects
Time of day is bordering on, this will greatly shorten the cycle that aircraft is tested to product birth from model.
To sum up can be seen that, in test section in after installation on wind-tunnel axis, being intended to survey out angle of attack mechanism pivot
Actual position, to check its registration with theoretical center.If registration is overproof, then illustrate on test section relevant position
Installation accuracy does not reach requirement, test section installation procedure need to be just analyzed and implement associated mounting location to subtracting for reason
Reinstalling in small registration bias direction and adjust, until angle of attack mechanism pivot exists with the deviation control of theoretical center
In the range of design requirement.
In existing detection method, can be measured using DJ1 micrometer instrument combination DS1 class precision spirit levels.Should
Method surveys data is influenceed larger by tulwar support plate location status, and the rotary middle point for fitting can only be informative.Thus,
According to the result that the measuring method draws, can only be used as to judge that trend carrys out adjustment test section installment state by rule of thumb, not be complete essence
Accurate data.
Still an alternative is that plug is positioned in tulwar support plate centre bore being detected.The method operates than upper
One kind is convenient, but because plug is often more long, the deformation that the forming residual stress for itself containing causes is larger, this kind of side
The measurement declination error that formula implements caused can exceed that first method, and the data for being drawn also can only be for reference.
In addition still an alternative is that what is occurred in the recent period carries out testing with laser tracker.This metering system is accurate, obtains
The result for going out is right with time of day kissing higher.But the method can only be used as the inspection of final products, be unsuitable in test section
The process variations of generation are checked in adjustment as the foundation of moment reference in installing.Because this kind of mode gathered data point is many
Many, also the data for gathering are analyzed by computer can just go out result, and the whole link cycle is long, can not meet test section peace
Transient demand during dress to measuring.
The content of the invention
The invention provides a kind of detection means and method of test chamber angle of attack mechanism pivot, make measurement process
It is more directly perceived, simple and direct, and set up out that error is small, stability benchmark high makes engineers and technicians be easy in force correctly
Adjustment degree is held, and can clearly eliminate the measure to be taken of deviation.
The detection means of test chamber angle of attack mechanism pivot of the present invention, including the support with horizontal extensions
Location structure, support location structure is provided with the guide frame that horizontal extensions can be made to make vertical shift, horizontal extensions
Elongated end be provided with detection location structure, and location structure is corresponding is arranged at test chamber angle of attack mechanism with the detection
Tulwar support plate at can make the measurement apparatus of positive negative angle of attack arcuate movement with tulwar support plate.
When being detected to angle of attack mechanism pivot, can be realized by the detection location structure of horizontal extensions elongated end
By the theoretical pivot hypostazation of angle of attack mechanism, theoretical pivot intuitively show in the space of test chamber
In, the method that it is set up is very simple and direct to be applicable, and high precision, good stability, then measurement detects location structure and located at angle of attack machine
The distance between measurement apparatus on structure tulwar support plate, and compared with designed distance, according to measurement distance whether in allowable error
In the range of rotation to judge angle of attack mechanism whether have deviation.Detection means of the invention greatly simplify measurement operation, and
Will not be adjusted times influence, can be reused, until completing the accurate adjustment of test section, often be adjusted compared to existing various methods
The whole complicated processes for being once required for setting up again instrument, centering again, are greatly reduced operating personnel, shorten implementation week
Phase, reduce labour intensity, saved cost, and the detection means can apply to it is various across, supersonic wind tunnel in wind-tunnel
The determination of the angle of attack mechanism centre of gyration, highly versatile.
Specifically, the support location structure in above-mentioned detection device may include to be connected with the fixed base of horizontal extensions
Frame, horizontal extensions include that the take-up housing of structure movement can be vertically directed along on stationary base mount, and are fixed with take-up housing
And it is provided with the measurement bar of the detection location structure in elongated end.For example, stationary base mount can be it is a kind of by joist steel upright and
The square shape structure of the L-square composition of bottom, the web surface of joist steel upright is vertical windward side in wind-tunnel, on web
There is described guide frame along the finishing of its longitudinal centre line.Take-up housing can move up and down tune along the guide frame on stationary base mount
Whole height.Positioned in the space three-dimensional of vertical position in horizontal, lengthwise position and take-up housing by stationary base mount, so that it may so that with cunning
The detection location structure in measurement bar that block is fixed is positioned at the theoretical pivot of angle of attack mechanism in test chamber space
Place.
Preferably, described measurement bar is connected with take-up housing with the cone and taper hole structure positioning being engaged.Using cone
Self-positioning and auto-lock function and taper hole structure between, can very easily realize being accurately positioned.
Further, it is provided with horizontal extensions for keeping its stabilization and height-adjustable support bar.Support
Bar can be a screwed round steel type adjusting rod in termination, be conducive to the stabilization and certain auxiliary to horizontal extensions
Height adjustment effect.
Preferably, the detection location structure of the measurement bar is sphere structure；There is described measurement apparatus one end to be used for
The matrix being connected with tulwar support plate, the other end is provided with the spherical measurement end corresponding with the detection location structure of measurement bar.Spheroid
The characteristics of radius with arbitrfary point on end face is identical, therefore can very easily determine and detect the detection positioning of sphere structure
The distance between structure and spherical measurement end corresponding with detection location structure.
Further, connected with the cone and taper hole structure positioning that are engaged between the measurement apparatus and tulwar support plate, together
Sample easily and efficiently can be positioned and fixed to measurement apparatus.
The method that the present invention is detected using above-mentioned detection device to test chamber angle of attack mechanism pivot, step
Including：
A. by detection location structure horizontal-extending on the support location structure in above-mentioned detection device by space
Three-dimensional adjustment is placed in theoretical rotary middle point of the angle of attack mechanism on wind-tunnel axis；
B. the corresponding measurement apparatus positioning of the detection location structure in the location structure with support is arranged at the angle of attack
The center of the tulwar support plate of mechanism；
C. measurement apparatus is made positive negative angle of attack arcuate movement with tulwar support plate, measure it and positioned with detection in motion process
The distance between measurement point of structure, and the distance and designed distance are compared, prolonged by adjusting level on support location structure
The position of the detection location structure stretched, the scope for making the deviation of itself distance and the measurement point of measurement apparatus between be allowed in design
It is interior.
Further, when the horizontal-extending detection location structure and measurement apparatus are sphere structure, level is made
The horizontal-extending end points of spheroid of the spheroid detection location structure of elongated end is located at the theoretical rotary middle point of wind-tunnel, and measurement is described
The distance between horizontal-extending end points and measurement apparatus measurement point are to measure the distance between its two relative sphere.
The detection means and method of test chamber angle of attack mechanism pivot of the present invention, can be by the theory rotation of angle of attack mechanism
Turn central entity, make measurement process more directly perceived, simple and direct, and set up out that error is small, stability benchmark high, greatly
Simplify measurement operation, it will be apparent that shorten the implementation cycle, reduce operating personnel, reduce labour intensity, significantly
The cost of each side is saved.And the detection means can apply to various in wind-tunnel be returned across, supersonic wind tunnel angle of attack mechanism
Turn the determination at center, highly versatile.
Specific embodiment with reference to embodiments, is described in further detail again to the above of the invention.
But this scope for being interpreted as above-mentioned theme of the invention should not be only limitted to following example.Think above-mentioned technology of the invention is not departed from
In the case of thinking, according to various replacements or change that ordinary skill knowledge and customary means are made, this hair all should be included in
In bright scope.
Brief description of the drawings
Fig. 1 is current test chamber angle of attack mechanism structural representation.
Fig. 2 is a kind of structural representation of the detection means of test chamber angle of attack mechanism pivot of the present invention.
Specific embodiment
The detection means of test chamber angle of attack mechanism pivot of the present invention as shown in Figure 2, including with horizontal-extending
The support location structure 4 of structure, support location structure 4 includes the stationary base mount for connecting the horizontal extensions, and support is fixed
Bit architecture 4 is provided with the guide frame that horizontal extensions can be made to make vertical shift.The rectangular chi shape of stationary base mount, by I-steel
The L-square composition of column and bottom, the web surface of joist steel upright is vertical windward side in wind-tunnel, there is vertical along it on web
To the gathering sill that center line is finished.
Horizontal extensions include can be along the take-up housing 6 for being vertically directed structure movement on stationary base mount, and and sliding block
Seat 6 is connected with the cone and taper hole structure positioning being engaged and is provided with the survey for detecting location structure 2 of sphere structure in elongated end
Gauge rod 5；Also have with it is described detection location structure 2 it is corresponding be arranged at the tulwar support plate 1 of test chamber angle of attack mechanism, can
Make the measurement apparatus 3 of positive negative angle of attack arcuate movement with tulwar support plate 1.The inner chamber of take-up housing 6 is that taper positions pore structure, and it is not opened
A guide ledges are machined with the end face of taper hole, for being engaged with the gathering sill on stationary base mount, can wherein make micro-
The linear slide in gap.The termination lower weld of the perforate of take-up housing 6 has a tapped pipe sleeve, is connected with by the pipe sleeve
The stabilization of auxiliary slider seat 6 and height-adjustable support bar 7.One end of measurement bar 5 is and the taper location hole phase on take-up housing 6
The cone of adaptation；The other end is provided with a detection location structure 2 for sphere structure.
The matrix that measurement apparatus 3 corresponding with detection location structure 2 are used to be connected with tulwar support plate 1 with one end, and lead to
Cross the center of the same middle bracket 12 that angle of attack mechanism tulwar support plate 1 is inserted with the cone and taper hole structure positioning that are engaged of matrix
Positioned in hole.The other end of detection means 3 is provided with the spherical measurement end corresponding with the detection location structure 2 of measurement bar 5.
When detection means is set, the pedestal of support location structure 4 is first fixed：According to the technical parameter of design, push away in advance
Calculate position of the pivot of tulwar support plate on wind-tunnel axis.After centering on wind-tunnel axis, that is, tulwar branch is set up out
The rotary middle point of plate, the process is not required to, by spirit level and theodolite, set up process simple.According to the position of the rotary middle point
Put, measured with inside micrometer, spacing on the upper and lower wallboard face of the inner chamber of nozzle section 9, determine stationary base mount in jet pipe
Section at 9 port of export cavity planted agents of section, and the projection line in the section and the projection line of wind-tunnel axis are marked, form longitudinal and transverse hanging down
Straight right-angled intersection datum line；Then stationary base mount is installed on the section, makes two orthogonal facades of stationary base mount
Longitudinal centre line, aligned with above-mentioned right-angled intersection datum line respectively, so, stationary base mount is just carried out on horizontal and vertical
Positioning, and be on required section and kept aligning with wind-tunnel axis.
Take-up housing 6 is provisionally attached to stationary base mount up again, its guide ledges is in the gathering sill of stationary base mount,
In the precession pipe sleeve of support bar 7 and it is supported in the lower wall panels of nozzle section 9.Then respectively with the upper and lower wallboard of nozzle section 9 be rise a primordium
Standard, take-up housing 6 is fastened along (i.e. wind-tunnel center) in vertical gathering sill accurate adjustment to the chamber central position of nozzle section 9, adjustment branch
The height of strut 7 in the lower wall panels of nozzle section 9, take-up housing 6 is positioned on vertical to suitable state rear support.
Finally the conical section of measurement bar 5 is installed with the vertebral foramen respective outer side edges of take-up housing 6, the matrix one of measurement apparatus 3
End fixedly mounts with the centre bore of the middle bracket 12 of angle of attack mechanism tulwar support plate.At this moment, the detection positioning of the elongated end of measurement bar 5
Theoretical pivot when structure 2 is in the running of the tulwar support plate angle of attack.
During angle of attack mechanism pivot is detected, can the uniform selection 3~5 on the stroke of angle of attack mechanism rotation
Position is paused, and tulwar support plate middle part is measured at the theoretical rotary middle point of detection location structure 2 and be arranged on thousand points of bars 8 of internal diameter
The air line distance between the spherical measurement end of measurement apparatus 3 in the centre bore of support 12, compares with design size, checks its deviation
Whether in allowed band, and hereby it is possible to accurately be inferred to the adjustment direction of angle of attack mechanism offset correction.
The installation of test chamber and check property adjustment process are produced according to the detection means and method using the present embodiment
Raw cost is analyzed, and its financial cost saves nearly by 20% than traditional approach, while operating personnel are also greatly reduced, shortens
Implementation cycle, and the accuracy that significantly improves detection.
Claims (2)
1. the detection method of test chamber angle of attack mechanism pivot, it is characterized by：
A. include with horizontal extensions support location structure (4), support location structure (4) be provided with can make it is horizontal-extending
Structure makees the guide frame of vertical shift, and the elongated end of horizontal extensions is provided with detection location structure (2), and with the inspection
Determining bit architecture (2) corresponding tulwar support plate (1) place for being arranged at test chamber angle of attack mechanism can make just with tulwar support plate (1)
The measurement apparatus (3) of negative angle of attack arcuate movement；
Detection location structure (2) horizontal-extending on support location structure (4) is adjusted by the three-dimensional in space
It is placed in theoretical rotary middle point of the angle of attack mechanism on wind-tunnel axis；
B. measurement apparatus (3) positioning corresponding with the detection location structure (2) in support location structure is arranged at angle of attack machine
The center of the tulwar support plate of structure；
C. measurement apparatus (3) is made positive negative angle of attack arcuate movement with tulwar support plate, measure it and positioned with detection in motion process
The distance between measurement point of structure (2), and the distance and designed distance are compared, by adjusting in support location structure (4)
The position of horizontal-extending detection location structure (2), makes the deviation of itself distance and the measurement point of measurement apparatus (3) between in design
In the range of permission.
2. detection method as claimed in claim 1, it is characterized by：When the horizontal-extending detection location structure (2) and survey
When amount device (3) is sphere structure, the spheroid at horizontal-extending end is set to detect the horizontal-extending end points position of the spheroid of location structure (2)
In the theoretical rotary middle point of wind-tunnel, horizontal-extending detection location structure (2) and measurement apparatus (3) measurement point described in measurement
The distance between to measure the distance between its two relative sphere.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105157949A (en) * | 2015-10-16 | 2015-12-16 | 中国空气动力研究与发展中心低速空气动力研究所 | Model attack angle mechanism |
| CN105890864A (en) * | 2016-05-24 | 2016-08-24 | 湖北三江航天红阳机电有限公司 | Yawing mechanism |
| CN106644361B (en) * | 2016-09-30 | 2018-12-28 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of simple and easy method measuring transonic wind tunnel test section space flow field symmetry |
| CN106525384B (en) * | 2016-11-28 | 2018-11-23 | 济宁学院 | Modeling wind field experiment test device towards wind driving robot |
| CN109211515B (en) * | 2018-08-06 | 2020-06-09 | 中国航天空气动力技术研究院 | Wind tunnel test model attitude calibration device and calibration method |
| CN113970418A (en) * | 2021-10-26 | 2022-01-25 | 中国航空工业集团公司哈尔滨空气动力研究所 | Variable attack angle device for wind tunnel test |
| CN114383803B (en) * | 2022-03-22 | 2022-06-14 | 西南交通大学 | Wind tunnel test device for aerodynamic characteristics of pseudo-dynamic vehicle-bridge |
| CN115219145B (en) * | 2022-08-01 | 2022-12-06 | 中国航空工业集团公司沈阳空气动力研究所 | High-speed wind tunnel attack angle mechanism |
| CN115265999B (en) * | 2022-09-28 | 2022-12-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Horizontal double-engine layout air inlet duct wind tunnel test device |
| CN118010297B (en) * | 2024-04-09 | 2024-06-18 | 中国空气动力研究与发展中心高速空气动力研究所 | Sub-transonic variable attack angle concurrent direct connection wind tunnel test support system and design method |
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| ATE504868T1 (en) * | 2006-05-31 | 2011-04-15 | Panasonic Corp | METHOD FOR CALCULATION OF A CENTER OF ROTATION, METHOD FOR CALCULATION OF AN AXIS OF ROTATION, METHOD FOR CREATING A PROGRAM, OPERATING METHOD AND ROBOTIC DEVICE |
| CN101236077B (en) * | 2008-03-07 | 2010-06-09 | 潘旭华 | Rotating platform object fulcrum and rotating platform central line overlap ratio measuring method |
| JP5219090B2 (en) * | 2009-07-02 | 2013-06-26 | ソーバル株式会社 | 3D shape measuring device, 3D shape measuring method |
| CN101963490B (en) * | 2010-09-03 | 2012-06-06 | 暨南大学 | Method for determining rotating center of rotating body based on laser mixing interference |
| CN102679921B (en) * | 2012-05-04 | 2014-07-16 | 上海华力微电子有限公司 | Device and method for measuring rotating center |
| CN103240592B (en) * | 2013-04-11 | 2015-12-23 | 中国葛洲坝集团股份有限公司 | The exactly determined method of turning hydrogenerator set for alignment unit pivot |
| CN204758255U (en) * | 2015-07-30 | 2015-11-11 | 四川省工业设备安装公司 | Detection apparatus for test chamber angle of attack rotation center of mechanism |
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