CN110320000A - Installation device of sensor is used in a kind of test of acoustic wind tunnel - Google Patents
Installation device of sensor is used in a kind of test of acoustic wind tunnel Download PDFInfo
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- CN110320000A CN110320000A CN201810319880.7A CN201810319880A CN110320000A CN 110320000 A CN110320000 A CN 110320000A CN 201810319880 A CN201810319880 A CN 201810319880A CN 110320000 A CN110320000 A CN 110320000A
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- wirerope
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- connecting rod
- steel wire
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- 238000009434 installation Methods 0.000 title claims abstract description 43
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 9
- 239000006096 absorbing agent Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 241001269238 Data Species 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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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
Acoustic wind tunnel test installation device of sensor is made of using steel wire array format wirerope, connecting rod, fixing bolt and Cable wire tightener, and wherein connecting rod one end is connect with fixing bolt, and one end is connect with wirerope or Cable wire tightener；Fixing bolt can be pre-installed in the metope of test chamber, also can according to need interim installation；Wirerope and connecting rod after the installation is completed, are tightened with Cable wire tightener, after the tensioning degree for reaching needs, are fixed wirerope crosspoint with finer wire or band etc..The device can be used for the installation of sensor when sound field and flow field characteristic measure in wind-tunnel, especially lateral sound field or flow field, with light-weight, installation is simple, stream field and sound field influence advantage small, at low cost, that function expansibility is strong.
Description
One, technical field
The present invention relates to a kind of measuring instrument equipment of wind-tunnel, and in particular to a kind of acoustic wind tunnel test is installed with sensor
Device.
Two, background technique
Wind-tunnel (wind tunnel) be can artificially generated and control air-flow, with simulated flight device or object ambient gas
Flowing, and air-flow can be measured to a kind of pipe-like experimental facilities of the effect of object and observation physical phenomenon, it is to carry out sky
Aerodynamic force tests the most frequently used, most effective tool.Wind tunnel experiment is an indispensable composition in aircraft development work
Part.It not only plays an important role in the research and development of aerospace engineering, with the hair of industrial aerodynamics
Exhibition, is even more indispensable in fields such as navigation, communications and transportation, building construction, wind energy utilizations.Acoustic wind tunnel (is also known as eliminated the noise
Wind-tunnel) it is for the special wind-tunnel facility of pneumatically-acoustic experiment, by reducing the ambient noise of test chamber, for pneumatic
Carry out acoustic experiment under environmental condition, Aerodynamic parameter and parameters,acoustic can be measured simultaneously.The basic pattern of acoustic wind tunnel
It is divided into two kinds of reverse-flow type (closed type) and single flow (open type).
Wind-tunnel acoustic experiment is to carry out the important means of aerodynamic noise mechanism of production research, and the pneumatic noise reduction of verifying optimizes
Design most direct, effective method.It is accurately to determine aerodynamic noise source to generate that aeroacoustics, which test most important purpose,
Region, and the spatial distribution of the frequency spectrum of sound and the intensity (such as sound pressure level) of sound is measured, it is mentioned for noise control and noise reduction process
For technical support.Wind-tunnel acoustic experiment generally requires the measurement that acoustic measurement system carries out parameters,acoustic.
Complete acoustic measurement system mainly by microphone (usually sound pressure sensor or Sound intensity probe), sensor
Mounting device (such as array), multipath paralleling data acquisition equipment and measurement analysis software are constituted.Wherein, microphone is distributed in
On array, for obtaining the voice signal in space；And data acquisition equipment is then converted to the electric signal that microphone exports
For the digital signal of computer storage and processing；Measurement processing software operates on measurement analytical calculation machine, for realizing adopting
The control and communication for collecting equipment are completed at the same time the functions such as processing and the result output of test data.
Although sensor, data acquisition equipment and measurement analysis software are the key component in measuring system, sensing
Device mounting device also has a major impact the use of sensor, especially in wind-tunnel, when air velocity is higher in wind-tunnel, passes
The installation condition of sensor is influenced by flow perturbation, can interfere the use of sensor, including sensor shake in the gas flow,
The secondary noise etc. that sensor fastening device generates under airflow function can greatly influence the accuracy of sensor measurement data
And validity.Moment sensor mounting device mostly uses greatly two kinds of forms of fixed array or removable support.Array
Fixing situation is preferable, is typically mounted in wind-tunnel below test specimen.Often size is big, at high cost, difficult to install for array, special
When not being flow field or the sound field for measuring test specimen side, the big array installation of weight and fixation are all highly difficult, and stream field
It can have adverse effect on.In addition, array is after installation is fixed, it is past by the position of its mobile change sensor
Toward more difficulty, the increase and change of test measurement point are limited.Removable support can be as needed not although very light
With location point placement sensor.But often stability is poor for removable support, and especially in bigger wind-tunnel, measuring point position
Set usually it is higher, removable support is often difficult to fix in big air-flow, even if bracket is capable of fixing, but is mounted in movement
Often shake is very serious in big air-flow for sensor on formula bracket, is unable to measure to obtain effective data at all.In addition, moving
Dynamic formula bracket itself can in wind-tunnel flow field and sound field have an adverse effect, itself need to do Acoustic treatment, improve it
Use cost.
Three, summary of the invention
To overcome the problems, such as existing two kinds of installation device of sensor, the present invention devises a kind of new acoustic wind tunnel test
With installation device of sensor, referred to as steel wire array apparatus, the installation for being mainly used for test specimen side sensor in acoustic wind tunnel is fixed
Position, as shown in Figure 1.
The technical solution adopted by the present invention to solve the technical problems is: using steel wire array format, by wirerope, even
Extension bar, fixing bolt and Cable wire tightener composition, wherein connecting rod one end is connect with fixing bolt, one end and wirerope or steel
The connection of cord tightener；Fixing bolt can be pre-installed in the metope of test chamber, also can according to need interim peace
Dress；Wirerope and connecting rod after the installation is completed, are tightened with Cable wire tightener, after the tensioning degree for reaching needs, use finer wire
Or band etc. fixes wirerope crosspoint.The device can be used for the peace of sensor when sound field and flow field characteristic measure in wind-tunnel
Dress, especially lateral sound field or flow field.
The beneficial effects of the present invention are: (1) is light-weight, only wirerope and connecting rod, the weight of Cable wire tightener, phase
Existing sensor array frame weight is greatly reduced；(2) installation is simple, only needs in advance that there are installation interface, steel wire arrays
The installation and removal of device are all very easy；(3) stream field and sound field influence small, since steel wire array apparatus scale itself is small,
Stream field and sound field will not all make a big impact；(4) at low cost, steel wire array apparatus due to itself sound reflecting area very
It is small, can ignore substantially, so it goes without doing special Acoustic treatment, and the device constitute simple, required wirerope and its
The installation costs such as connecting rod are all very low；(5) function expansibility is strong, and only need to increase wirerope quantity can be formed by how netted survey
Point, and can arbitrarily increase measuring point quantity among steel wire as needed, there is good function expansibility.
Four, Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is one-dimensional steel wire array apparatus scheme of installation (while being also embodiment one), reflects one dimensional linear array side
Used steel wire array apparatus form when formula placement sensor.(1) connecting rod in figure, (2) wirerope, (3) sensor peace
Holding position, (4) wedge absorber, (5) test specimen, (6) wind-tunnel entrance, (7) wind-tunnel diffuser.
Fig. 2 is connecting rod installation diagram.(1) mounting rod in figure, (2) mounting rod tighten bolt, (3) connection ring, (4) connection ring
Bolt is tightened, (5) expansion bolt, (6) metope
Fig. 3 is wirerope schematic diagram.(1) wirerope in figure, (2) wirerope connection ring, (3) wirerope clip, (4) steel wire
Rope tightener
Fig. 4 is sensor and wirerope scheme of installation at point position.(1) sensor in figure, (2) transverse steel wire rope,
(3) vertical wirerope, (4) sensor and wirerope binding device.
Fig. 5 is two-dimentional steel wire array apparatus scheme of installation (while being also embodiment two), reflects two-dimensional surface battle array
Used steel wire array apparatus form when mode placement sensor.(1) connecting rod in figure, (2) wirerope, (3) sensor
Installation site, (4) wedge absorber, (5) test specimen, (6) wind-tunnel entrance, (7) wind-tunnel diffuser.
Fig. 6 is three-dimensional steel wire array apparatus scheme of installation (while being also embodiment three), reflects three-dimensional space battle array
Used steel wire array apparatus form when mode placement sensor.(1) connecting rod in figure, (2) wirerope, (3) sensor
Installation site, (4) wedge absorber, (5) test specimen, (6) wind-tunnel entrance, (7) wind-tunnel diffuser.
Fig. 7 is that steel wire array apparatus increases measuring point schematic diagram (while being also example IV), is reflected in three-dimensional space
On the basis of battle array mode placement sensor when other one dimensional linear array, two-dimensional surface and three-dimensional space position increase measuring point, adopted
Steel wire array apparatus form.(1) connecting rod in figure, (2) wirerope, (3) sensor mounting location, (4) wedge absorber,
(5) test specimen, (6) wind-tunnel entrance, (7) wind-tunnel diffuser, (8) increase the mode one of measuring point, and (9) increase the mode of measuring point
Two, (10) increase the mode three of measuring point, and (11) increase the mode four of measuring point, wirerope needed for (12) increase measuring point.
Five, specific embodiment
Embodiment one (one-dimensional steel wire arranging-in-row device)
In embodiment one shown in Fig. 1, used steel wire array when one dimensional linear array mode placement sensor is reflected
Device form.Steel wire array apparatus is made of connecting rod (1) and wirerope (2), and wherein connecting rod needs certain length,
Slightly above wedge absorber (4).Steel wire array apparatus after the installation is completed, senses required for can installing in point position (3)
Device, such as sound pressure sensor.In embodiment one, one shares 5 point positions for installing sensor, constitutes one dimensional linear array arrangement
Form can measure and the various signal datas at wind-tunnel axis parallel position, such as sound pressure signal.Specific connection type is as schemed
Shown in 4~Fig. 6.
In connecting rod installation diagram shown in Fig. 2, mounting rod (1) one end is tightened in bolt (2) and metope (6) by mounting rod
Preassembled fixing bolt (5) (expansion bolt can be used) connection, and connecting rod is fixed, the other end and connection ring (3)
Bolt (4) connection is tightened by connection ring, for installing wirerope.
In wirerope schematic diagram shown in Fig. 3, wirerope (1) both ends by wirerope connection ring (2) respectively with connecting rod
It connects with Cable wire tightener (4), or is all connect with Cable wire tightener (4), and pass through wirerope clip for wirerope (1)
It locks.If wirerope (1) only has one end to be connected with Cable wire tightener (4), Cable wire tightener also needs and connecting rod
It reconnects, after connection, tightening wirerope by Cable wire tightener (4) prevents wirerope (1) relaxation.If wirerope
(1) both ends all connecting steel wire ropes tighteners (4), then it is same again after two Cable wire tighteners (4) connect with two connecting rods respectively
When tighten wirerope (1).
At point position shown in Fig. 4 in sensor and wirerope scheme of installation, transverse steel wire rope (2) and vertical steel wire
Rope (3) intersects, and the crosspoint of the two will be passed for installing sensor (1) by sensor and wirerope binding device (4)
Sensor (1) is connected and fixed simultaneously with transverse steel wire rope (2) and vertical wirerope (3).Sensor and wirerope binding device (4) can
In the form of use is simple, such as band, cord, iron wire etc., it can also specially design a kind of similar to construction scaffold
The form of upper steel pipe jointing device does not do special design in the present invention.
Wirerope (2) can according to need selection different size, select bis- twirl (multiply) the stainless steel steel of 3mm in the present embodiment
Cord.
Embodiment two (two-dimentional steel wire arranging-in-row device)
In embodiment two shown in Fig. 5, used steel wire battle array when two-dimensional surface battle array mode placement sensor is reflected
Array apparatus form.Steel wire array apparatus is made of connecting rod (1) and wirerope (2), and wherein connecting rod needs certain length
Degree, slightly above wedge absorber (4).Steel wire array apparatus after the installation is completed, passes required for can installing in point position (3)
Sensor.In embodiment two, one shares 5 × 5=25 point position for installing sensor, constitutes two-dimensional surface battle array and arranges shape
Formula can measure the various signal datas at the plan-position parallel with wind-tunnel axis.
Embodiment three (three-dimensional steel wire arranging-in-row device)
In embodiment three shown in Fig. 6, used steel wire battle array when three-dimensional space battle array mode placement sensor is reflected
Array apparatus form.Steel wire array apparatus is made of connecting rod (1) and wirerope (2), and wherein connecting rod needs certain length
Degree, slightly above wedge absorber (4).Steel wire array apparatus after the installation is completed, passes required for can installing in point position (3)
Sensor.In embodiment three, one shares 5 × 5 × 3=75 point position for installing sensor, constitutes three-dimensional space face battle array arrangement
Form can measure and the various signal datas in wind-tunnel axis lateral space field.
Example IV (increases measuring point)
Fig. 7 is that steel wire array apparatus increases measuring point schematic diagram (while being also example IV), is reflected in three-dimensional space
On the basis of battle array mode placement sensor when other one dimensional linear array, two-dimensional surface and three-dimensional space position increase measuring point, adopted
Steel wire array apparatus form.Steel wire array apparatus is made of connecting rod (1) and wirerope (2), and wherein connecting rod needs
There are certain length, slightly above wedge absorber (4).Steel wire array apparatus after the installation is completed, can pacify in point position (3)
Sensor required for filling.In example IV, on the basis of original point position, it can according to need and increase in many ways
Measuring point provides the modes of four kinds of increase measuring points in Fig. 7.The embodiment also illustrates that steel wire array apparatus has good function
It can expansion.
Claims (4)
1. a kind of acoustic wind tunnel test installation device of sensor by wirerope, connecting rod, is consolidated using steel wire array format
Determine bolt and Cable wire tightener composition, wherein connecting rod one end is connect with fixing bolt, and one end and wirerope or wirerope are received
Tight device connection；Fixing bolt can be pre-installed in the metope of test chamber, also can according to need interim installation；Steel wire
Rope after the installation is completed, is tightened, after the tensioning degree for reaching needs, with finer wire or band etc. with connecting rod with Cable wire tightener
Wirerope crosspoint is fixed, which can be used for the installation of sensor when sound field and flow field characteristic measure in wind-tunnel, especially
It is lateral sound field or flow field, with light-weight, installation is simple, stream field and sound field influence are small, at low cost, function expansibility is strong
Advantage.
2. acoustic wind tunnel test installation device of sensor according to claim 1, it is characterized in that: in wirerope crosspoint
Place's installation sensor, wirerope size itself is small, light-weight, to the influence very little in flow field and sound field in wind-tunnel, wirerope
It does not need to do special Acoustic treatment, cost is relatively low.
3. acoustic wind tunnel test installation device of sensor according to claim 1, it is characterized in that: the arrangement of wirerope can
Using the diversified forms such as increase measuring point installation sensing between one dimensional linear array, two-dimensional surface battle array, three-dimensional space battle array and wirerope
Device, functions expanding are good.
4. acoustic wind tunnel test installation device of sensor according to claim 1, it is characterized in that: fixing bolt can be pre-
It is first mounted in the metope of test chamber, also can according to need interim installation, which only needs connecting rod and fixation
It is bolted, then connecting rod is connect with connecting steel wire ropes, steel wire tightener, i.e., mountable sensor, simple installation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810319880.7A CN110320000A (en) | 2018-03-29 | 2018-03-29 | Installation device of sensor is used in a kind of test of acoustic wind tunnel |
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| CN201810319880.7A CN110320000A (en) | 2018-03-29 | 2018-03-29 | Installation device of sensor is used in a kind of test of acoustic wind tunnel |
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| CN110320000A true CN110320000A (en) | 2019-10-11 |
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| CN201810319880.7A Pending CN110320000A (en) | 2018-03-29 | 2018-03-29 | Installation device of sensor is used in a kind of test of acoustic wind tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341174A (en) * | 2021-06-03 | 2021-09-03 | 中国人民解放军海军工程大学 | Transonic cascade wind tunnel piv test device test method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0954010A (en) * | 1995-08-11 | 1997-02-25 | Denso Corp | Wind tunnel test apparatus, initial state setting method for sample body to be supported in wind tunnel, and measurement of fluid dynamics characteristic thereof |
| CN103009391A (en) * | 2012-12-14 | 2013-04-03 | 厦门大学 | Variable-structure rope-traction parallel robot for wind tunnel test |
| CN106289706A (en) * | 2016-08-15 | 2017-01-04 | 浙江大学 | The flow tunnel testing device of power transmission line wind noise |
| CN107298481A (en) * | 2017-07-28 | 2017-10-27 | 安徽省天虹绿洲环保科技有限公司 | A kind of lake pollution cleaning system |
| CN209247310U (en) * | 2018-03-29 | 2019-08-13 | 中国人民解放军海军工程大学 | Installation device of sensor is used in a kind of test of acoustic wind tunnel |
-
2018
- 2018-03-29 CN CN201810319880.7A patent/CN110320000A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0954010A (en) * | 1995-08-11 | 1997-02-25 | Denso Corp | Wind tunnel test apparatus, initial state setting method for sample body to be supported in wind tunnel, and measurement of fluid dynamics characteristic thereof |
| CN103009391A (en) * | 2012-12-14 | 2013-04-03 | 厦门大学 | Variable-structure rope-traction parallel robot for wind tunnel test |
| CN106289706A (en) * | 2016-08-15 | 2017-01-04 | 浙江大学 | The flow tunnel testing device of power transmission line wind noise |
| CN107298481A (en) * | 2017-07-28 | 2017-10-27 | 安徽省天虹绿洲环保科技有限公司 | A kind of lake pollution cleaning system |
| CN209247310U (en) * | 2018-03-29 | 2019-08-13 | 中国人民解放军海军工程大学 | Installation device of sensor is used in a kind of test of acoustic wind tunnel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341174A (en) * | 2021-06-03 | 2021-09-03 | 中国人民解放军海军工程大学 | Transonic cascade wind tunnel piv test device test method and system |
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