CN109357834A - A kind of fluorescence silk thread mounting structure based on sleeve - Google Patents
A kind of fluorescence silk thread mounting structure based on sleeve Download PDFInfo
- Publication number
- CN109357834A CN109357834A CN201811346701.5A CN201811346701A CN109357834A CN 109357834 A CN109357834 A CN 109357834A CN 201811346701 A CN201811346701 A CN 201811346701A CN 109357834 A CN109357834 A CN 109357834A
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- Prior art keywords
- sleeve
- silk thread
- fluorescence silk
- testpieces
- fluorescence
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- 238000002474 experimental method Methods 0.000 claims abstract description 32
- 238000007596 consolidation process Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 241000771208 Buchanania arborescens Species 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a kind of fluorescence silk thread mounting structure based on sleeve, is made of fluorescence silk thread, sleeve and testpieces.Wherein, fluorescence silk thread plugs in sleeve, consolidates fluorescence silk thread one end and sleeve using glue, fluorescence silk thread is fixed in the aperture of testpieces surface based on sleeve；There are the length for exposing to testpieces surface, fluorescence silk threads can change with incoming flow in wind tunnel experiment for the fluorescence silk thread other end, and fluorescence silk thread is avoided directly to contact with testpieces surface.The identification degree during wind tunnel experiment can be improved using fluorescence silk thread, fluorescence silk thread and sleeve consolidation plug after the aperture of testpieces surface, and can be waved by fluorescence silk thread with stream the incoming flow flowing variation being observed in wind-tunnel in wind tunnel experiment.Fluorescence silk thread and sleeve consolidation are plugged and carry out wind tunnel experiment in testpieces surface aperture, sleeve and fluorescence silk thread are consolidated can be recycled and reuse, reduce the cost of wind tunnel experiment, improve wind tunnel experiment efficiency.
Description
Technical field
The present invention relates to wind tunnel technique fields, specifically, being related to a kind of fluorescence silk thread installation knot based on sleeve
Structure.
Background technique
Wind tunnel experiment is as a kind of in the side that test section passes through generation air-flow and installation mock-up is tested wherein
Method is of great significance in multiple fields.It is aobvious to carry out surface flow that flow-field visualized method is generallyd use in wind tunnel experiment
Show；This method is to place probe material on testpieces surface, and the shape of probe material will be made around the flowing of testpieces airflow on surface
Shape changes, so that observer directly can visually observe the flow regime on testpieces surface, and then infers the characteristic of flowing.
Fluorescence thread technology is a kind of Flow Visualization most-often used in flow visualization, and the technology is former using fluorescence blast
Reason, to flowing interference it is minimum in the case where, can convenient the phenomenon that being clearly observed flowing and development, in wind tunnel experiment skill
There is very important function in art.Conventional fluorescent thread technology is the surface progress wind that fluorescence silk thread is pasted onto testpieces
Hole is tested, and recoverable does not increase wind tunnel experiment cost to fluorescence silk thread in turn in experiment.
Patent of invention CN104075870 discloses that " a kind of low-speed wind tunnel fluorescence silk thread based on fiber line and its flowing are aobvious
Show method ".This method includes paper tape, adhesive tape and several fluorescence silk threads, and fluorescence silk thread is pasted between adhesive tape and paper tape, is used
The light source induced fluorescence silk thread of specific wavelength shines, and is shot by apparatus for making a video recording to experimentation；The characteristics of this method, exists
In easy to operate, as a result reliably, but it uses adhesive tape that fluorescence silk thread is pasted onto testpieces surface to carry out wind tunnel experiment, testing
Fluorescence silk thread can not recycle after the completion, cause the waste of fluorescence silk thread.
" hypersonic interior rotatable air intake duct and the wall surface silk in distance piece flow field are disclosed in patent of invention CN106768813
Line display methods ".This method is that the part wall of interior rotatable air intake duct and distance piece inner flow passage is applicable in transparent material displacement, one
Side transparent material is used to observe, and processes multiple rows of micropore on the transparent wall surface in the other side, is sticked on the outside of wall surface after silk thread is passed through micropore,
To observe interior flow field in an experiment.This method feature is to observe that interior flow field changes in an experiment,
But silk thread is passed through micropore and is adhered on the outside of wall surface again by it, and silk thread mounting means is complex, and silk thread can not recycle, and is improved
Experimental cost.
Summary of the invention
In order to avoid the shortcomings of the prior art, overcome fluorescence silk thread in wind tunnel experiment that can not recycle and reuse, and
The more difficult problem of mounting means, the present invention propose a kind of fluorescence silk thread mounting structure based on sleeve；Fluorescence silk thread peace
Assembling structure uses sleeve supplementary mode, and fluorescence silk thread is fixedly arranged in sleeve, by drill bit in testpieces surface vertical perforating, set
Cylinder plugs in the aperture of testpieces surface with fluorescence silk thread, and testpieces is put into wind-tunnel and is tested；After sleeve is completed in experiment
With the recyclable reuse of fluorescence silk thread, wind tunnel experiment cost is reduced.
The technical solution adopted by the present invention to solve the technical problems is: including fluorescence silk thread, sleeve, testpieces and test
Part surface aperture, the sleeve are hollow cylinder, open at one end closed at one end, and sleeve is located in the aperture of testpieces surface, and
Sleeve height is less than the depth of testpieces surface aperture, and sleeve is coupled with testpieces surface aperture, so that testpieces surface
It is smooth；
The testpieces surface is vertically and horizontally evenly equipped with several Blind holes, and testpieces surface aperture axis and testpieces axis
Line is vertical, and testpieces surface hole diameter is slightly larger than sleeve diameter, and sleeve is detachable；
The fluorescence silk thread is located in sleeve, and fluorescence silk thread one end and sleeve are consolidated in sleeve by being glued, fluorescence silk
The line other end exposes to testpieces surface, and sleeve and fluorescence silk thread consolidation plug in the aperture of testpieces surface, outside fluorescence silk thread
Reveal length and is higher than testpieces surface 15mm~20mm；Fluorescence wire diameter is less than the boundary-layer on testpieces surface in wind tunnel experiment
Thickness.
The sleeve material is copper or stainless steel.
The fluorescence wire diameter is less than 0.16mm, and length is 26mm~30mm.
The testpieces uses glass reinforced plastic or light wood machine-shaping.
Beneficial effect
A kind of fluorescence silk thread mounting structure based on sleeve proposed by the present invention, fluorescence silk thread one end is plugged in sleeve
It is consolidated using glue, the fluorescence silk thread other end can change in wind tunnel experiment with incoming flow, be consolidated fluorescence silk thread based on sleeve
It is scheduled in the aperture of testpieces surface, avoids fluorescence silk thread from contacting with the direct of testpieces surface, reduce the complexity of operation.
The present invention is based on the fluorescence silk thread mounting structures of sleeve, and fluorescence silk thread and sleeve are plugged into testpieces surface aperture
It is interior, the testpieces of the fluorescence silk thread and sleeve that have plugged is put into wind-tunnel and is tested, since sleeve is being plugged into testpieces table
When inside the aperture of face, the two is not affixed, therefore the sleeve and fluorescence silk thread being fixed together after the completion of testing can be recycled and repeat
It uses.
The present invention is based on the fluorescence silk thread mounting structure of sleeve, distinguishing during wind tunnel experiment can be improved using fluorescence silk thread
After knowledge degree, fluorescence silk thread and sleeve consolidation plug testpieces surface aperture, there are protruded lengths for fluorescence silk thread, can be in wind-tunnel
Flowing is observed in experiment；Fluorescence wire diameter is less than testpieces surface boundary layer thickness, can guarantee the reasonable of experimental result
Property and accuracy.
The present invention is based on the fluorescence silk thread mounting structures of sleeve compared with prior art, and fluorescence silk thread can in wind tunnel experiment
Identification is higher, it is easier to which operator observes the flowing variation in wind tunnel experiment；Fluorescence silk thread and sleeve are consolidated, and then will
The two plugs in the aperture of testpieces surface, reduces Preparatory work of experiment time and operation complexity；Improve wind tunnel experiment effect
Rate.
Detailed description of the invention
Make with reference to the accompanying drawing with the embodiment fluorescence silk thread mounting structure based on sleeve a kind of to the present invention further
It is described in detail.
Fig. 1 is that the present invention is based on the fluorescence silk thread mounting structure schematic diagrams of sleeve.
Fig. 2 is sleeve of the invention, fluorescence silk thread installation position schematic diagram.
Fig. 3 is that the present invention is based on the fluorescence silk thread mounting structure operational flowcharts of sleeve.
In figure
1. 2. fluorescence silk thread of sleeve, 3. testpieces, 4. testpieces surface aperture
Specific embodiment
The present embodiment is a kind of fluorescence silk thread mounting structure based on sleeve.
Refering to fig. 1~Fig. 3, fluorescence silk thread mounting structure of the present embodiment based on sleeve, by sleeve 1, fluorescence silk thread 2, examination
It tests part 3 and testpieces surface aperture 4 forms.Wherein, sleeve 1 is hollow cylinder, open at one end closed at one end, and sleeve 1 is installed
On testpieces in aperture, and the height of sleeve is less than the depth of testpieces surface aperture 4, sleeve 1 and testpieces surface aperture 4
It is coupled, so that testpieces surface is smooth.The outer diameter of this example middle sleeve 1 be 0.7mm~0.9mm, internal diameter be 0.3mm~
0.6mm, length are less than 4 depth of testpieces surface aperture, and sleeve is 3mm~5mm high cylindrical structure.
Fluorescence silk thread one end is fixed in sleeve, and the fluorescence silk thread other end exposes to testpieces surface, 2 diameter of fluorescence silk thread
It should be less than 0.16mm, length is between 26mm~30mm, and fluorescence silk thread 2 is diameter 0.1mm in this example, and length 26mm's has
The fiber line of preferable fluorescent characteristics.Sleeve with fluorescence silk thread is affixed plugs in the aperture of testpieces surface, the exposed length of fluorescence silk thread
Degree is higher than testpieces surface 15mm~20mm；The fluorescence wire diameter is less than the boundary-layer on testpieces surface in wind tunnel experiment
Thickness.
Testpieces 3 is the wing model for needing to carry out wind tunnel experiment in this example, and material is cork wood, is easy to aperture.Examination
It tests part surface and is evenly equipped with several apertures, and aperture axis is vertical with testpieces axis, hole diameter is greater than sleeve diameter.Aperture 4
Vertically and it is distributed in 3 surface of testpieces, all around spacing is glimmering in experimentation to guarantee between 25mm~30mm for aperture 4
It will not be wound between chevilled silk line 2, and then ensure that tests goes on smoothly；Aperture 4 is round hole, and depth should be no more than test
3 thickness of part, with the integrality of guarantee test part 3,4 diameter of aperture is less than 1mm but is greater than 1 outer diameter of sleeve, so that sleeve 1 can be smoothly
Insert aperture 4, in wind tunnel experiment, relative position variation will not occur for sleeve 1 and aperture 4,4 depth of aperture be generally 3mm~
Between 5mm；Aperture 4 is diameter 0.9mm in this example, and the round hole of depth 4mm, it is 25mm that aperture 4, which is all around spaced,.
Operating process
1. fluorescence silk thread 2 is inserted in sleeve 1,2 one end of fluorescence silk thread is fixedly arranged at sleeve 1 using 502 or 495 glue
It is interior, it is ensured that fluorescence silk thread 2 will not change with 1 position of sleeve, and the other end of fluorescence silk thread 2 can freely be transported with incoming flow
It is dynamic.
2. choosing the microbit that diameter is 0.8mm~1mm, it is that the drill bit of 0.9mm vertically tries that diameter is selected in this example
Test the punching of part surface.
3. the fluorescence silk thread 2 being consolidated and sleeve 1 are packed into testpieces surface aperture 4, and sleeve 1 is without outer
Dew, with the smoothness on 3 surface of guarantee test part；Guarantee sleeve filling aperture 4 after, 2 protruded length of fluorescence silk thread be 15mm~
Between 20mm, 2 protruded length of fluorescence silk thread is 20mm in this example, to guarantee in operator's energy visual observation wind tunnel experiment
Flow characteristics.
4. the testpieces 3 for filling in sleeve 1 and fluorescence silk thread 2, which is put into wind-tunnel, carries out wind tunnel experiment, operator is carried out
Observation and record.
5. experiment take out the sleeve 1 and fluorescence silk thread 2 consolidated after the completion, in case of next time carry out using.
Claims (4)
1. a kind of fluorescence silk thread mounting structure based on sleeve, it is characterised in that: including fluorescence silk thread, sleeve, testpieces and examination
Test part surface aperture, the sleeve is hollow cylinder, open at one end closed at one end, and sleeve is located in the aperture of testpieces surface,
And sleeve height is less than the depth of testpieces surface aperture, sleeve is coupled with testpieces surface aperture, so that testpieces table
Face is smooth；
The testpieces surface is vertically and horizontally evenly equipped with several Blind holes, and testpieces surface aperture axis and testpieces axis hang down
Directly, testpieces surface hole diameter is slightly larger than sleeve diameter, and sleeve is detachable；
The fluorescence silk thread is located in sleeve, and fluorescence silk thread one end and sleeve are consolidated in sleeve by being glued, and fluorescence silk thread is another
One end exposes to testpieces surface, and sleeve and fluorescence silk thread consolidation plug in the aperture of testpieces surface, the exposed length of fluorescence silk thread
Degree is higher than testpieces surface 15mm~20mm；The boundary-layer that fluorescence wire diameter is less than testpieces surface in wind tunnel experiment is thick
Degree.
2. the fluorescence silk thread mounting structure according to claim 1 based on sleeve, it is characterised in that: the sleeve material is
Copper or stainless steel.
3. the fluorescence silk thread mounting structure according to claim 1 based on sleeve, it is characterised in that: the fluorescence silk thread is straight
Diameter is less than 0.16mm, and length is 26mm~30mm.
4. the fluorescence silk thread mounting structure according to claim 1 based on sleeve, it is characterised in that: the testpieces uses
Glass reinforced plastic or light wood machine-shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346701.5A CN109357834A (en) | 2018-11-13 | 2018-11-13 | A kind of fluorescence silk thread mounting structure based on sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346701.5A CN109357834A (en) | 2018-11-13 | 2018-11-13 | A kind of fluorescence silk thread mounting structure based on sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109357834A true CN109357834A (en) | 2019-02-19 |
Family
ID=65344804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811346701.5A Pending CN109357834A (en) | 2018-11-13 | 2018-11-13 | A kind of fluorescence silk thread mounting structure based on sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109357834A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08114526A (en) * | 1994-10-14 | 1996-05-07 | Mitsubishi Heavy Ind Ltd | Wind tunnel test visualizing method and device |
| CN104075870A (en) * | 2014-07-08 | 2014-10-01 | 中国空气动力研究与发展中心低速空气动力研究所 | Low-speed wind tunnel fluorescent silk thread based on fiber threads and flow visualization method thereof |
| CN206019983U (en) * | 2016-07-19 | 2017-03-15 | 上海工程技术大学 | A kind of aerodynamics of wing experimental simulation device |
| CN106768813A (en) * | 2016-12-05 | 2017-05-31 | 中国科学技术大学 | Hypersonic interior rotatable air intake duct and the wall silk thread display methods in distance piece flow field |
| CN108154769A (en) * | 2018-03-20 | 2018-06-12 | 广东三嘉教育装备有限公司 | A kind of experimental provision and experimental method of researching airfoil lift secret |
| CN209117295U (en) * | 2018-11-13 | 2019-07-16 | 西北工业大学 | A kind of fluorescence silk thread mounting structure based on sleeve |
-
2018
- 2018-11-13 CN CN201811346701.5A patent/CN109357834A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08114526A (en) * | 1994-10-14 | 1996-05-07 | Mitsubishi Heavy Ind Ltd | Wind tunnel test visualizing method and device |
| CN104075870A (en) * | 2014-07-08 | 2014-10-01 | 中国空气动力研究与发展中心低速空气动力研究所 | Low-speed wind tunnel fluorescent silk thread based on fiber threads and flow visualization method thereof |
| CN206019983U (en) * | 2016-07-19 | 2017-03-15 | 上海工程技术大学 | A kind of aerodynamics of wing experimental simulation device |
| CN106768813A (en) * | 2016-12-05 | 2017-05-31 | 中国科学技术大学 | Hypersonic interior rotatable air intake duct and the wall silk thread display methods in distance piece flow field |
| CN108154769A (en) * | 2018-03-20 | 2018-06-12 | 广东三嘉教育装备有限公司 | A kind of experimental provision and experimental method of researching airfoil lift secret |
| CN209117295U (en) * | 2018-11-13 | 2019-07-16 | 西北工业大学 | A kind of fluorescence silk thread mounting structure based on sleeve |
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Application publication date: 20190219 |
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