CN107894319A - A kind of test device of round steel pipe bar Shape Coefficient - Google Patents
A kind of test device of round steel pipe bar Shape Coefficient Download PDFInfo
- Publication number
- CN107894319A CN107894319A CN201711487235.8A CN201711487235A CN107894319A CN 107894319 A CN107894319 A CN 107894319A CN 201711487235 A CN201711487235 A CN 201711487235A CN 107894319 A CN107894319 A CN 107894319A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- pipe bar
- shape coefficient
- round steel
- bar component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 125000006850 spacer group Chemical group 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 206010016256 fatigue Diseases 0.000 claims 1
- 230000001186 cumulative effect Effects 0.000 abstract description 4
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 101100194816 Caenorhabditis elegans rig-3 gene Proteins 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- G01M9/02—Wind tunnels
- G01M9/04—Details
-
- 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
- G01M9/065—Measuring arrangements specially adapted for aerodynamic testing dealing with flow
-
- 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
- G01M9/08—Aerodynamic models
Abstract
A kind of test device of round steel pipe bar Shape Coefficient, it is to be disposed with two-dimensional flow experimental rig in the test section for building wind-tunnel, two-dimensional flow experimental rig is made up of upper spacer and lower clapboard, lower clapboard is supported on the ground of test section by cushion block, upper spacer is fixed on lower clapboard by support bar, round steel pipe bar component is installed among the upper spacer and lower clapboard of two-dimensional flow experimental rig, multiple pressure taps are disposed with round steel pipe bar component stage casing, pressure tap is connected in electronic scanner by pressure-measuring pipe, pass through the Shape Coefficient of all pressure taps of electron scanning valve test, the cumulative Shape Coefficient for obtaining steel pipe bar component is carried out to the Shape Coefficient of pressure tap, utilize different wind speed and turbulivity caused by the power section and vertical baffle plate for building wind-tunnel, to test the Shape Coefficient of round steel pipe bar component in actual environment；It can pass through the Shape Coefficient of circular steel tube rod under test acquisition different-diameter, arrives stream wind speed, incoming turbulivity and surface roughness.
Description
Technical field
The present invention relates to a kind of test device of round steel pipe bar Shape Coefficient, more particularly, to the round steel pipe body of rod
The flow tunnel testing device of type coefficient, belong to wind load technical field of measurement and test.
Background technology
With the high speed development of power system, overhead transmission line is built on a large scale.Circular steel tube rod, which has, to be accounted for
The advantages that ground area is small, rod-type is attractive in appearance, quick construction, is widely used in downtown area.Wind load is round steel pipe
The major control load of bar.The Shape Coefficient of circular steel tube rod and Reynolds number close association, study generally use reduced scale mould in the past
The method of type experiment obtains the Shape Coefficient of circular steel tube rod, but because the presence of reynolds number effect causes scale (model) test to obtain
The Shape Coefficient obtained can not be generalized to material object, therefore be highly desirable to develop the test device of round steel pipe bar Shape Coefficient.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, and provide a kind of different straight by testing acquisition
The Shape Coefficient of circular steel tube rod under footpath, arrives stream wind speed, incoming turbulivity and surface roughness, it is circular steel tube rod Exact Design
The test device of the round steel pipe bar Shape Coefficient of foundation is provided.
The purpose of the present invention is completed by following technical solution, a kind of test dress of round steel pipe bar Shape Coefficient
Put, it is to be disposed with two-dimensional flow experimental rig in the test section for building wind-tunnel, and two-dimensional flow experimental rig is by upper spacer and lower clapboard
Composition, lower clapboard are supported on the ground of test section by cushion block, and upper spacer is fixed on lower clapboard by support bar, in two dimension
Installation round steel pipe bar component among the upper spacer and lower clapboard of experimental rig is flowed, is disposed with round steel pipe bar component stage casing more
Individual pressure tap, pressure tap are connected in electronic scanner by pressure-measuring pipe, pass through the body of all pressure taps of electron scanning valve test
Type coefficient, the cumulative Shape Coefficient for obtaining steel pipe bar component is carried out to the Shape Coefficient of pressure tap, utilizes the power for building wind-tunnel
Different wind speed and turbulivity caused by section and vertical baffle plate, to test the Shape Coefficient of round steel pipe bar component in actual environment.
As preferred：Described round steel pipe bar component surface uses to be surface-treated with actual conditions identical, including plating
Zinc or brushing paint, the diameter range of described round steel pipe bar component is 0.1m to 1.5m；Described pressure measurement number of perforations should be big
In 72.
As preferred：The distance between upper spacer and lower clapboard of described two-dimensional flow experimental rig are arranged to adjustable,
To adapt to different round steel pipe bar component height；Described pressure measurement number of perforations should be greater than 72.
As preferred：Described round steel pipe bar component (8) highly should be greater than 0.6m.
The present invention is studied directly against circular steel tube rod material object, is not related to the reduced scale of yardstick and wind speed, therefore it is tied
Fruit is Shape Coefficient in kind, it also avoid the reynolds number effect that scale (model) test is brought；It is produced actual using wind-tunnel
Arrives stream wind speed corresponding to situation and turbulivity, facilitate the wind field residing for object simulating steel pipe, while can be obtained using pressure testing method
Obtain the Shape Coefficient of steel pipe pole.
The invention has the advantages that：The invention provides round steel pipe bar Shape Coefficient is realized under artificial environment
Test device, the body for obtaining circular steel tube rod under different-diameter, arrives stream wind speed, incoming turbulivity and surface roughness can be tested
Type coefficient, the Exact Design for circular steel tube rod provide foundation.
Brief description of the drawings
Fig. 1 is the test device structural representation of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.It is of the present invention a kind of circular shown in Fig. 1
The test device of steel pipe pole Shape Coefficient, it is to be disposed with two-dimensional flow experimental rig 3, two-dimensional flow in the test section 2 for building wind-tunnel 1
Experimental rig 3 is made up of upper spacer 4 and lower clapboard 5, and lower clapboard 5 is supported on by cushion block 6 on the ground of test section 2, upper spacer 4
It is fixed on by support bar 7 on lower clapboard 5, the installation circular steel among the upper spacer 4 and lower clapboard 5 of two-dimensional flow experimental rig 3
Tube rod component 8, multiple pressure taps 9 are disposed with the stage casing of round steel pipe bar component 8, pressure tap 9 is connected to electricity by pressure-measuring pipe 10
In son scanning valve 11, the Shape Coefficient 12 of all pressure taps 9 is tested by electronic scanner 11, to the Shape Coefficient of pressure tap 9
12 carry out the cumulative Shape Coefficient 12 for obtaining steel pipe bar component 8, are produced using the power section 13 and vertical baffle plate 14 of building wind-tunnel 1
Different wind speed and turbulivity, to test the Shape Coefficient 12 of round steel pipe bar component 8 in actual environment.
The surface of round steel pipe bar component 8 of the present invention uses to be surface-treated with actual conditions identical, including zinc-plated
Or brushing paint, the diameter range of described round steel pipe bar component 8 is 0.1m to 1.5m；The described number of pressure tap 10 should be big
In 72, number can increase.
The distance between upper spacer 4 and lower clapboard 5 of two-dimensional flow experimental rig 3 of the present invention are arranged to adjustable,
To adapt to the different height of round steel pipe bar component 8；The described height of round steel pipe bar component 8 should be greater than 0.6m, highly can be with
Increase.
Embodiment：
Now illustrate the application method of the present apparatus by taking certain flow tunnel testing device and experiment process as an example.
As shown in figure 1, experiment process is as follows：
1）Be disposed with two-dimensional flow experimental rig 3 in the test section 2 of Zhejiang University ZD-1 building wind-tunnel 1, two-dimensional flow experimental rig 3 by
Upper spacer 4 and lower clapboard 5 are formed, and lower clapboard 5 is supported on the ground of test section 2 by cushion block 6, and cushion block is the wooden unit of 10cm square,
By 16 cushion blocks, uniformly pad is fixed on lower clapboard 5 in lower clapboard, upper spacer 4 by four support bars 7.
2）The installation round steel pipe bar component 8 among the upper spacer 4 and lower clapboard 5 of two-dimensional flow experimental rig 3, member diameters
It is highly 60cm for 1m, red antirust paint is brushed in outer surface, and 180 pressure taps 9 are disposed with the stage casing of round steel pipe bar component 8.
3）Pressure tap 9 is connected to by pressure-measuring pipe 10 in the Dsm3400 electronic scanners 11 of Scanvalve companies of the U.S.,
The Shape Coefficient 12 of all pressure taps 9 is tested by Dsm3400 electronic scanners 11, the Shape Coefficient 12 of pressure tap 9 is carried out
The cumulative Shape Coefficient 12 for obtaining steel pipe bar component 8, utilize difference caused by the power section 13 and vertical baffle plate 14 for building wind-tunnel 1
Wind speed and turbulivity, wind speed range are 5m/s to 40m/s, and turbulivity scope is 0% to 12%, to test circular steel in actual environment
The Shape Coefficient 12 of tube rod component 8.
By said process, the test of circular steel tube rod Shape Coefficient under different wind speed and turbulivity is realized.
Above-mentioned embodiment is used for illustrating the present invention, rather than limits the invention, in the spirit of the present invention
In claims, to any modifications and changes of the invention made, protection scope of the present invention is both fallen within.
Claims (4)
1. a kind of test device of round steel pipe bar Shape Coefficient, it is characterised in that in test section (2) arrangement of building wind-tunnel (1)
There is two-dimensional flow experimental rig (3), two-dimensional flow experimental rig (3) is made up of upper spacer (4) and lower clapboard (5), and lower clapboard (5) passes through
Cushion block (6) is supported on the ground of test section (2), and upper spacer (4) is fixed on lower clapboard (5) by support bar (7), in two dimension
Installation round steel pipe bar component (8) among the upper spacer (4) and lower clapboard (5) of experimental rig (3) is flowed, in round steel pipe bar component
(8) stage casing is disposed with multiple pressure taps (9), and pressure tap (9) is connected in electronic scanner (11) by pressure-measuring pipe (10), passed through
Electronic scanner (11) tests the Shape Coefficient (12) of all pressure taps (9), and the Shape Coefficient (12) of pressure tap (9) is tired out
Add the Shape Coefficient (12) for obtaining steel pipe bar component (8), produced using the power section (13) and vertical baffle plate (14) for building wind-tunnel (1)
Raw different wind speed and turbulivity, to test the Shape Coefficient (12) of round steel pipe bar component (8) in actual environment.
A kind of 2. test device of round steel pipe bar Shape Coefficient according to claim 1, it is characterised in that：Described circle
Shape steel pipe bar component (8) surface uses to be surface-treated with actual conditions identical, including zinc-plated or brushing paint, described circle
The diameter range of steel pipe bar component (8) is 0.1m to 1.5m；Described pressure tap (10) number should be greater than 72.
A kind of 3. test device of round steel pipe bar Shape Coefficient according to claim 1, it is characterised in that：Described two
The distance between upper spacer (4) and lower clapboard (5) of dimension stream experimental rig (3) are arranged to adjustable, to adapt to different circles
Steel pipe bar component (8) height；Described pressure tap (10) number should be greater than 72.
A kind of 4. test device of round steel pipe bar Shape Coefficient according to claim 1 or 3, it is characterised in that：It is described
Round steel pipe bar component (8) highly should be greater than 0.6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487235.8A CN107894319A (en) | 2017-12-29 | 2017-12-29 | A kind of test device of round steel pipe bar Shape Coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487235.8A CN107894319A (en) | 2017-12-29 | 2017-12-29 | A kind of test device of round steel pipe bar Shape Coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107894319A true CN107894319A (en) | 2018-04-10 |
Family
ID=61808915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711487235.8A Pending CN107894319A (en) | 2017-12-29 | 2017-12-29 | A kind of test device of round steel pipe bar Shape Coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107894319A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5756892A (en) * | 1997-02-27 | 1998-05-26 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Apparatus for measuring ambient pressure within a gaseous flow field |
| CN103063399A (en) * | 2013-01-09 | 2013-04-24 | 浙江大学 | Framed bent device for wind tunnel flow field |
| CN103324849A (en) * | 2013-06-19 | 2013-09-25 | 国家电网公司 | Method for determining shape coefficient of single rod of power transmission tower based on CFD (computational fluid dynamics) skew wind |
| CN105157988A (en) * | 2015-08-24 | 2015-12-16 | 同济大学 | Piezometer orifice-based tunnel pressure synchronous measuring method for whole vehicles |
| CN105257070A (en) * | 2015-09-30 | 2016-01-20 | 中国电力科学研究院 | Correction method of shape coefficient of transmission tower in wind-sand field |
| CN106289706A (en) * | 2016-08-15 | 2017-01-04 | 浙江大学 | The flow tunnel testing device of power transmission line wind noise |
| CN106289711A (en) * | 2016-08-05 | 2017-01-04 | 国网新疆电力公司电力科学研究院 | A kind of force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower |
-
2017
- 2017-12-29 CN CN201711487235.8A patent/CN107894319A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5756892A (en) * | 1997-02-27 | 1998-05-26 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Apparatus for measuring ambient pressure within a gaseous flow field |
| CN103063399A (en) * | 2013-01-09 | 2013-04-24 | 浙江大学 | Framed bent device for wind tunnel flow field |
| CN103324849A (en) * | 2013-06-19 | 2013-09-25 | 国家电网公司 | Method for determining shape coefficient of single rod of power transmission tower based on CFD (computational fluid dynamics) skew wind |
| CN105157988A (en) * | 2015-08-24 | 2015-12-16 | 同济大学 | Piezometer orifice-based tunnel pressure synchronous measuring method for whole vehicles |
| CN105257070A (en) * | 2015-09-30 | 2016-01-20 | 中国电力科学研究院 | Correction method of shape coefficient of transmission tower in wind-sand field |
| CN106289711A (en) * | 2016-08-05 | 2017-01-04 | 国网新疆电力公司电力科学研究院 | A kind of force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower |
| CN106289706A (en) * | 2016-08-15 | 2017-01-04 | 浙江大学 | The flow tunnel testing device of power transmission line wind noise |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102692309B (en) | Power transmission line wind tunnel test system and method applied to typhoon field | |
| CN103940394B (en) | The monitoring system and method for tunneltron canopy construction method excavation simulation device | |
| CN107576314A (en) | Float type depopulated zone rivers and lakes automatic monitoring system | |
| CN108181079B (en) | A kind of power transmission tower cross-arm Shape Coefficient air tunnel testing device based on double balances | |
| CN107090859B (en) | A kind of test method of the multidirectional horizontal bearing capacity of single pile under compound load action | |
| CN202974813U (en) | Indoor testing device for seepage characteristics of jointed rock mass | |
| CN108534984A (en) | A kind of power transmission tower cross-arm Shape Coefficient air tunnel testing device based on double balances | |
| CN204514632U (en) | The two-sided cable-stayed bridge test model of a kind of single tower | |
| CN103235349A (en) | Three-dimensional measuring method and measuring system for underground deformation | |
| CN207923409U (en) | The test device of round steel pipe bar Shape Coefficient | |
| CN107505001A (en) | A kind of bottom sediment temperature and pressure in site measurement instrument and its data capture method | |
| CN104483388A (en) | Method for nondestructively measuring three-dimensional space distribution of decay body in trunk | |
| CN105953762A (en) | Power transmission line modeling method used for net distance measurement and distance measurement device thereof | |
| CN102778395B (en) | In-service pipeline settlement simulation test method and device | |
| CN103018793B (en) | Cloud early warning system and method of wires under extreme meteorological conditions | |
| CN107894319A (en) | A kind of test device of round steel pipe bar Shape Coefficient | |
| CN102721523A (en) | Method for establishing interval wind spectrum model | |
| CN103321468A (en) | Guyed triangular truss wind measuring tower | |
| CN210833509U (en) | Transformer substation ground settlement monitoring device based on weak grating | |
| CN107014670A (en) | The test device of the multidirectional horizontal bearing capacity of single pile under compound load action | |
| CN205228777U (en) | Experimental device for it is experimental to flow resistance to simulate flexible plant | |
| CN104950350A (en) | Multichannel Bowen ratio remote acquiring instrument for surface flux of crop canopy | |
| CN103215901A (en) | PE (Polyethylene) snow defence net and installation method thereof | |
| CN105178366A (en) | Model test device for vertical long-time settling character test of pile foundation and application of model test device | |
| Fairhurst | Modelling and design of an oscillating wave energy converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180410 |
|
| RJ01 | Rejection of invention patent application after publication |