CN109238627A - A kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test - Google Patents

A kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test Download PDF

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Publication number
CN109238627A
CN109238627A CN201811049048.6A CN201811049048A CN109238627A CN 109238627 A CN109238627 A CN 109238627A CN 201811049048 A CN201811049048 A CN 201811049048A CN 109238627 A CN109238627 A CN 109238627A
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CN
China
Prior art keywords
pressure
comb
column
wind
multipoint synchronous
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Pending
Application number
CN201811049048.6A
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Chinese (zh)
Inventor
高亮
李加武
白桦
李宇
王峰
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Xian University of Technology
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Xian University of Technology
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Filing date
Publication date
Application filed by Xian University of Technology filed Critical Xian University of Technology
Priority to CN201811049048.6A priority Critical patent/CN109238627A/en
Publication of CN109238627A publication Critical patent/CN109238627A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels
    • G01M9/06Measuring arrangements specially adapted for aerodynamic testing
    • G01M9/062Wind tunnel balances; Holding devices combined with measuring arrangements

Abstract

The invention discloses a kind of Multipoint synchronous comb pressure measuring units applied to wind field characteristic wind tunnel test, two pieces of tailgates of comb column and two sides including center, the pressure tap for drawing pressure-measuring pipe line is uniformly provided on comb column, pressure-measuring pipe line is across pressure tap and secured by gluing knot, and pressure-measuring pipe line is pierced by from the top of two pieces of tailgates or bottom, and be connected with external survey pressure scanning valve, one end of two pieces of tailgates is separately fixed at comb column two sides, and other end intersection is bonded together;The upper and lower ends of comb column are fixed on the fixed bracket of experiment by connecting bolt.Test accuracy and efficiency can be improved in the present invention, meets Multipoint synchronous measurement test requirements document, and production is simple, uses and saves conveniently.

Description

A kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test
Technical field
The invention belongs to engineering structure wind load test technical fields, and in particular to one kind is applied to the wind tunnel test of wind field characteristic Multipoint synchronous comb pressure measuring unit.
Background technique
It is to examine and enhancing strong wind area knot to wind resistance wind tunnel test is carried out across, the sensitive engineering structure of the wind such as towering greatly The anti-disaster caused by a windstorm ability of structure reduces the effective way of disaster caused by a windstorm loss.Meanwhile specifying the spy of the wind at complicated landform site locating for engineering structure Property parameter (average wind characterisitic parameter, fluctuating wind characterisitic parameter) can be structure wind force proofing design, safe construction and normal use Scientific basis and technical guarantee are provided.The accurate and efficient requirement of wind tunnel test, in the dummy run phase of incoming flow wind field, in landform mould The test phase of type wind field characteristic, which is presented as, to synchronize measurement to enough measuring points.Wind when wind tunnel test is carried out at present The measurement of speed mainly has wind-tunnel inherently to pop one's head in and first two device of sitting posture bracket carrying spy.Both devices are both in routine The measuring wind speed of (Segment Model dynamometer check) in wind tunnel test, when the simulation (rigid model manometric test) for carrying out incoming flow wind field When debugging, generallys use mobile sitting posture bracket carrying probe apparatus and each target point in wind field section is measured one by one, it is time-consuming Arduously;When carrying out the wind tunnel test of complicated landform model wind field characteristic in bridge site area or wind power plant large scale, due to measure More points, larger range of wind field characteristic, it is necessary to one can be moved easily, can Multipoint synchronous measurement, and measurement accuracy is higher Wind speed measuring apparatus.Wind-tunnel is inherently popped one's head in and can not be moved, this is not available in the wind tunnel test of wind field characteristic, and A seating branch The device that frame carries probe is difficult to fix on complicated landform model, is easy to topple under biggish arrives stream wind speed, and the two is equal It is difficult to realize Multipoint synchronous measurement, can not efficiently complete the wind tunnel test requirement of wind field characteristic.
There are no special multiple spots for the wind tunnel test of the test of the current debugging and wind field characterisitic parameter for incoming flow wind field Synchronous testing device, equipment therefor is mostly the improvement or simple reprocessing on this basis of old device when test.Due to not having Have and targetedly designed and proved, these improved devices efficiency in test is lower, and not can guarantee test data The continuity that reliability and device use.
Summary of the invention
The purpose of the present invention is to provide a kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test, Test accuracy and efficiency can be improved, meet Multipoint synchronous measurement test requirements document, and production is simple, uses and save convenient survey Trial assembly is set.
To achieve the above object the invention adopts the following technical scheme: a kind of multiple spot applied to wind field characteristic wind tunnel test Synchronous comb pressure measuring unit, two pieces of tailgates of comb column and two sides including center are uniformly provided with for drawing on comb column The pressure tap of pressure-measuring pipe line out, pressure-measuring pipe line pass through pressure tap and secured by gluing knot, and pressure-measuring pipe line is from two pieces of tailgates Top or bottom are pierced by, and are connected with external survey pressure scanning valve, and one end of two pieces of tailgates is separately fixed at comb column two sides, separately One end intersection is bonded together;The upper and lower ends of comb column are fixed on the fixed bracket of experiment by connecting bolt.
As a further solution of the present invention, the comb column and tailgate are contour, be highly set as Boundary Layer Height 1~ 1.3 times, transom breadth is 3~6 times of comb column diameter.
As a further solution of the present invention, the pressure tap on comb column is laid as needed, and the spacing of pressure tap uses 5mm~10mm, comb column diameter are 20mm~50mm.
As a further solution of the present invention, the tailgate is made of the high density three-ply board of 1mm~2mm thickness, comb Column selects organic glass solid post.
As a further solution of the present invention, for Multipoint synchronous measurement in the horizontal direction when use, using multiple surveys Pressure pipe device arranges that the distance between each device is preferably greater than comb column diameter along direction of flow horizontal spreading in the horizontal direction 5 times.
The beneficial effects of the present invention are:
(1) it is able to achieve and is fixed on up-and-down complicated landform model, and will not topple under biggish arrives stream wind speed.
(2) can in synchro measure larger range spatial points wind field characterisitic parameter, be suitable for multi-measuring point, a wide range of, big The test of the complicated landform model wind field characteristic of scale and the debugging of incoming flow wind field.
(3) when relief model needs to rotate the wind field characteristic for testing other wind angles, pressure rake device is easy to disassemble, Installation;
(4) the rack-mount trip of pressure rake device, not by support interferences;And in bracket and three oblique pull wirerope Under collective effect, the stabilization and institute's measured data precision with higher of pressure rake device can guarantee.
(5) all components of apparatus of the present invention are detachable, this in test can ease of assembly, and can after the completion of experiment Easy to dismantle, storage, and take up an area few.
Detailed description of the invention
Fig. 1 is comb pressure measuring unit overall schematic of the present invention;
Fig. 2 is the comb column schematic diagram of comb pressure measuring unit of the present invention.
In figure: 1, comb column, 2, tailgate, 3, pressure tap, 4, connection bolt.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Whole elaboration.
As shown in Figs. 1-2, a kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test, including center Comb column 1 and two sides two pieces of tailgates 2, the pressure tap 3 for drawing pressure-measuring pipe line is uniformly provided on comb column 1, is surveyed Pressure pipeline passes through pressure tap 3 and secured by gluing knot, and pressure-measuring pipe line is pierced by from the top of two pieces of tailgates 2 or bottom, and with External survey pressure scanning valve is connected, and one end of two pieces of tailgates 2 is separately fixed at 1 two sides of comb column, and other end intersection is bonded in one It rises;The upper and lower ends of comb column 1 are fixed on the fixed bracket of experiment by connecting bolt 4.
The comb column and tailgate are contour, are highly set as 1~1.3 times of Boundary Layer Height, and transom breadth is comb column 3~6 times of diameter.
Lay the pressure tap on comb column as needed, in order to increase test density, the spacing of pressure tap using 5mm~ 10mm notices that spacing is overstocked, can reduce the rigidity of comb column, can be improved by the diameter of the column of increase comb, comb column Diameter is 20mm~50mm.
There are three the effects of tailgate, can be exposed in flow field destroyed to avoid pressure-measuring pipe line first, and convenient for surveying pressure It is pierced by after pipeline bending from tailgate top or bottom;Secondly tailgate can be dry to avoid wake flow caused by comb column and pressure-measuring pipe line It disturbs;Tailgate and comb cylindricality are integral simultaneously, can be used as center rest.The tailgate uses the high density three-ply board of 1~2mm thickness It is made, comb column selects organic glass solid post.This makes that the device of the invention is easy to process, is easy to make, is at low cost, and its Stable structure is reliable.
In order to which Multipoint synchronous in the horizontal direction measures when use, using multiple pressure rake devices edge in the horizontal direction Direction of flow horizontal spreading arrangement, the distance between each device is preferably greater than 5 times of comb column diameter, to avoid between each device It interferes with each other.
Present invention disassembly, conveniently moving, it is time saving and energy saving in production, installation, test, especially need to rotate in relief model It when wind field characteristic to test other wind direction angles, is rotated together after the device is detachable with relief model, or solid with top Determine device and tested model surface is directly lifted away from by bracket, to can further improve test efficiency in the test of multi-state. Comb pressure measuring unit small volume, lateral dimension can be ignored with respect to wind-tunnel width, want to wind-tunnel space and moulded dimension Ask low, strong applicability is suitable for the demand of conventional wind tunnel test.
The above is present pre-ferred embodiments, for the ordinary skill in the art, according to the present invention Introduction, in the case where not departing from the principle of the present invention and spirit, changes, modifications, replacement and change that embodiment is carried out Type is still fallen within protection scope of the present invention.

Claims (5)

1. a kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test, which is characterized in that including center Comb column and two pieces of tailgates of two sides are uniformly provided with the pressure tap for drawing pressure-measuring pipe line, pressure-measuring pipe line on comb column It is across pressure tap and secured by gluing knot, and pressure-measuring pipe line is pierced by from the top of two pieces of tailgates or bottom, and with external survey Pressure scanning valve is connected, and one end of two pieces of tailgates is separately fixed at comb column two sides, and other end intersection is bonded together;Comb column Upper and lower ends are fixed on the fixed bracket of experiment by connecting bolt.
2. a kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test as described in claim 1, special Sign is that the comb column and tailgate are contour, is highly set as 1~1.3 times of Boundary Layer Height, and transom breadth is that comb column is straight 3~6 times of diameter.
3. a kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test as described in claim 1, special Sign is, lays the pressure tap on comb column as needed, and the spacing of pressure tap uses 5mm~10mm, and comb column diameter is 20mm~50mm.
4. a kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test as described in claim 1, special Sign is that the tailgate is made of the high density three-ply board of 1mm~2mm thickness, and comb column selects organic glass solid post.
5. a kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test as described in claim 1, special Sign is, in order to which Multipoint synchronous in the horizontal direction measures when use, using multiple pressure rake devices edge in the horizontal direction Direction of flow horizontal spreading arrangement, the distance between each device are preferably greater than 5 times of comb column diameter.
CN201811049048.6A 2018-09-10 2018-09-10 A kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test Pending CN109238627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811049048.6A CN109238627A (en) 2018-09-10 2018-09-10 A kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811049048.6A CN109238627A (en) 2018-09-10 2018-09-10 A kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109827740A (en) * 2019-04-02 2019-05-31 重庆科技学院 Wind tunnel test multiple spot adjustable type disturbing flow device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102865044A (en) * 2012-10-11 2013-01-09 江苏科技大学 Imitated aerofoil adaptive vortex-induced vibration suppression and resistance reduction device for underwater riser
CN204116012U (en) * 2014-10-23 2015-01-21 重庆科技学院 A kind of shaped end comb being applicable to complicated landform wind tunnel test
CN205581136U (en) * 2016-01-06 2016-09-14 中国建筑科学研究院 Framed bent is measured to transient state multiple spot wind speed
CN205785751U (en) * 2016-06-16 2016-12-07 广东省建筑科学研究院集团股份有限公司 A kind of Multipoint synchronous wind speed testing tube for building wind tunnel test
CN107121259A (en) * 2017-06-05 2017-09-01 石家庄铁道大学 Two-dimentional square column wind tunnel test end effect suppressing method and device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102865044A (en) * 2012-10-11 2013-01-09 江苏科技大学 Imitated aerofoil adaptive vortex-induced vibration suppression and resistance reduction device for underwater riser
CN204116012U (en) * 2014-10-23 2015-01-21 重庆科技学院 A kind of shaped end comb being applicable to complicated landform wind tunnel test
CN205581136U (en) * 2016-01-06 2016-09-14 中国建筑科学研究院 Framed bent is measured to transient state multiple spot wind speed
CN205785751U (en) * 2016-06-16 2016-12-07 广东省建筑科学研究院集团股份有限公司 A kind of Multipoint synchronous wind speed testing tube for building wind tunnel test
CN107121259A (en) * 2017-06-05 2017-09-01 石家庄铁道大学 Two-dimentional square column wind tunnel test end effect suppressing method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109827740A (en) * 2019-04-02 2019-05-31 重庆科技学院 Wind tunnel test multiple spot adjustable type disturbing flow device
CN109827740B (en) * 2019-04-02 2021-01-08 重庆科技学院 Multipoint adjusting type turbulence device for wind tunnel test

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Application publication date: 20190118