CN107607289A - Aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test - Google Patents
Aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test Download PDFInfo
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- CN107607289A CN107607289A CN201710902835.XA CN201710902835A CN107607289A CN 107607289 A CN107607289 A CN 107607289A CN 201710902835 A CN201710902835 A CN 201710902835A CN 107607289 A CN107607289 A CN 107607289A
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- chute guide
- diagnostics
- guide pillar
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- 238000012360 testing method Methods 0.000 title claims abstract description 71
- 230000036541 health Effects 0.000 title claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 41
- 238000009434 installation Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses the aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test, including support and rod-type balance, described rod-type balance is horizontally disposed two, two rod-type balances are symmetrical, two rod-type balances are installed in the top of support, for bridge health test and diagnostics in test between two rod-type balances, the device for measuring force can realize two balance synchronous force measurements in wind tunnel test.
Description
Technical field
The present invention relates to bridge model wind tunnel test system regions, in particular to for bridge health test and diagnostics wind tunnel test
Aerodynamic balance measuring device.
Background technology
The accurate measurement of pneumatic three component is most important to calculating and stating bridge wind load.At present, it is pneumatic to obtain bridge
The method of triadic Cantor set mainly has numerical simulation and wind tunnel test, is compared to numerical simulation analysis, and wind tunnel experiment intuitively may be used
Lean on, various turbulence effects can be considered, be to apply more technological means at present.
The component of bridge three is tested it may first have to the platform of the component of Segment Model three of building bridge test, reality more at present
It is to stand upright on Segment Model on connection pedestal to test room, tests three component only with a balance, its equipment presence can not eliminate
Model afterbody two-dimensional flow effects, and easily produce high torque, the problem of super balance range damage balance.
The content of the invention
It is an object of the invention to provide the aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test, the device for measuring force is used
In realizing two balance synchronous force measurements in wind tunnel test.
This purpose of the present invention is realized by following structure form：For bridge health test and diagnostics wind tunnel test
Aerodynamic balance measuring device, it is characterised in that：The device for measuring force includes support and rod-type balance, and described rod-type balance sets for level
Two put, two rod-type balances are symmetrical, and two rod-type balances are installed in the top of support, and bridge health test and diagnostics are being surveyed
During examination between two rod-type balances, the device for measuring force can realize two balance synchronous force measurements in wind tunnel test.
In the present invention, described rod-type balance is arranged on the top of support by being rotatablely connected detent mechanism, and described turns
Dynamic connecting locating mechanism includes connection pedestal, balance mounting seat and connection bearing, described connection pedestal and is fixedly mounted on support
Top, linker seat tool has centre bore, and described balance mounting seat has centre bore, and the end of the rod-type balance is inserted into
It is connected after the centre bore of balance mounting seat with balance mounting seat by screw, described balance mounting seat is inserted into connection pedestal
Centre bore in, described connection bearing be arranged on balance mounting seat and connection pedestal between, connecting shaft accept insurance card balance installation
It can be relatively rotated between seat and connection pedestal, and balance mounting seat is turned to after installation site by screw with being connected pedestal phase
Connection.
Described connection bearing is deep groove ball bearing.
The present invention can do following improvement：Described balance mounting seat is further opened with the card of four structure identical circular arc
Button hole, four block button holes are evenly distributed on same circumference, four block button holes respectively positioned at balance mounting seat centre bore upper left,
Lower-left, upper right, bottom right four direction, a soket head cap screw is respectively installed on the notch of each block button hole, passes through interior hexagonal spiral shell
Nail by balance mounting seat be locked in connection pedestal on, it is described connection pedestal be carved with place above balance mounting seat -10 °~
10 ° of curved scale line, 0 ° of scale are located at middle, and minimum scale is 0.5 °.
Central angle corresponding to each block button hole is 30 °.
In the present invention, described support is the two-way chute-type that bidirectional modulation can be carried out in horizontal and vertical both direction
Support, the support include support underframe, the vertical chute guide pillar and horizontal concrete chute guide pillar, and described support underframe is by supporting bar
Formed with junction button, supporting bar is the aluminium section bar with chute, and described the vertical chute guide pillar is vertically arranged, and top has vertical
Chute, bottom have the vertical chute guide rail, and the vertical chute guide rail is inserted into the chute of supporting bar, and the vertical chute guide pillar can
Moved along the length direction of chute, to meet that the bridge health test and diagnostics of different length and the wind tunnel test of diverse location operating mode are tested
It is required that described horizontal concrete chute guide pillar is laterally set, the end of horizontal concrete chute guide pillar has horizontal concrete chute guide rail, and horizontal concrete chute is led
Rail is inserted into the vertical chute of the vertical chute guide pillar, and horizontal concrete chute guide pillar vertically chute can move up and down, to meet not
With high measure requirement, after bridge health test and diagnostics are adjusted in place, with screw respectively by the vertical chute guide pillar and supporting bar with
And horizontal concrete chute guide pillar is tightened with the vertical chute guide pillar, described rod-type balance is rack-mounted on described horizontal concrete chute guide pillar.
Scale is all labeled with described the vertical chute guide rail and horizontal concrete chute guide rail.
Compared with prior art, the present invention has following remarkable advantage：
(1) present invention is avoided that showing using the excessive damage balance of a balance moment of torsion using two balances while dynamometry
As eliminating the influence of model afterbody two-dimensional flow effect, ensure that the accuracy and applicability of measurement result.
(2) present invention can use energy shaped steel aluminium to carry out support assembly, and support rod unit mark scale, can accurately carry out
Equipment is installed and is accurately positioned, and realization device and equipment are simple and easy.
(3) Bidirectional adjustable slipping groove stent of the present invention, the use range of day device for measuring force is expanded, can be well adapted to
Different scales bridge model, different height landform operating mode.
(4) present invention is provided with zanjon bearing using balance connecting seat, and marks scale and setting in connect base and determine
Position hole, can flexibly adjust the angle of attack required for wind tunnel test, and be accurately positioned very much.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the use state front view of aerodynamic balance measuring device of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is the partial structural diagram of aerodynamic balance measuring device of the present invention, display connection pedestal, balance mounting seat and connection
The position relationship and annexation of bearing；
Fig. 4 is the front view of balance mounting seat in aerodynamic balance measuring device of the present invention；
Fig. 5 is the sectional view of balance mounting seat in invention aerodynamic balance measuring device；
Fig. 6 is the front view that pedestal is connected in aerodynamic balance measuring device of the present invention；
Fig. 7 is the sectional view that pedestal is connected in invention aerodynamic balance measuring device.
Description of reference numerals
1st, supporting bar；2nd, the vertical chute guide pillar；3rd, horizontal concrete chute guide pillar；4th, rod-type balance；
5th, pedestal is connected；6th, balance mounting seat；61st, block button hole；7th, bearing is connected；
100th, bridge health test and diagnostics.
Embodiment
The aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test as shown in Figures 1 to 7, including support and rod-type
Balance 4, rod-type balance 4 are horizontally disposed two, and two rod-type balances 4 are symmetrical, and two rod-type balances 4 are installed in branch
The top of frame, bridge health test and diagnostics 100 are in test between two rod-type balances 4, and device for measuring force is in bridge health test and diagnostics
Two balance synchronous force measurements can be realized in 100 wind tunnel test.
In the present embodiment, support is the two-way chute-type branch that bidirectional modulation can be carried out in horizontal and vertical both direction
Frame, support include support underframe, the vertical chute guide pillar 2 and horizontal concrete chute guide pillar 3, and support underframe is by supporting bar 1 and junction button
Composition, supporting bar 1 is the aluminium section bar with chute, and the vertical chute guide pillar 2 is vertically arranged, and top has the vertical chute, bottom tool
There is the vertical chute guide rail, the vertical chute guide rail is inserted into the chute of supporting bar 1, and the vertical chute guide pillar 2 can be along chute
Length direction moves, to meet the bridge health test and diagnostics 100 of different length and diverse location operating mode wind tunnel test test request,
Horizontal concrete chute guide pillar 3 is laterally set, and the end of horizontal concrete chute guide pillar 3 has horizontal concrete chute guide rail, the vertical chute guide rail and transverse direction
Scale is all labeled with chute guide rail, horizontal concrete chute guide rail is inserted into the vertical chute of the vertical chute guide pillar 2, and horizontal concrete chute is led
Post 3 vertically chute can move up and down, to meet different height test request, after bridge health test and diagnostics 100 are adjusted in place,
The vertical chute guide pillar 2 and supporting bar 1 and horizontal concrete chute guide pillar 3 are tightened with the vertical chute guide pillar 2 respectively with screw, rod-type
Balance 4 is rack-mounted on the horizontal concrete chute guide pillar 3 of cradle top.
In the present embodiment, rod-type balance 4 is arranged on the top of support by being rotatablely connected detent mechanism, and the rotation connection is determined
Position mechanism includes connection pedestal 5, balance mounting seat 6 and connection bearing 7, and connection bearing 7 is deep groove ball bearing, and connection pedestal 5 is solid
Dingan County is mounted in the top of support, and connection pedestal 5 has centre bore, and balance mounting seat 6 has centre bore, the end of rod-type balance 4
It is connected after being inserted into the centre bore of balance mounting seat 6 with balance mounting seat 6 by screw, balance mounting seat 6 is inserted into connection
In the centre bore of pedestal 5, connection bearing 7 is arranged between balance mounting seat 6 and connection pedestal 5, and connection bearing 7 ensures day safety
It can be relatively rotated between dress seat 6 and connection pedestal 5, and balance mounting seat 6 is turned to after installation site by screw with being connected
Pedestal 5 is connected.Here the installation site of balance mounting seat 6 refers to when rod-type balance 4 is in horizontal residing for balance mounting seat 6
Position.
Balance mounting seat 6 is further opened with the block button hole 61 of four structure identical circular arc, and four block button holes 61 uniformly divide
For cloth on same circumference, central angle corresponding to each block button hole 61 is 30 °, and four block button holes 61 are located at balance mounting seat respectively
The upper left of 6 centre bores, lower-left, upper right, bottom right four direction, an interior hexagonal spiral shell is respectively installed on the notch of each block button hole 61
Nail, balance mounting seat 6 is locked on connection pedestal 5 by soket head cap screw, connection pedestal 5 is positioned at balance mounting seat 6
- 10 °~10 ° of curved scale line is carved with top, and 0 ° of scale is located at middle, and minimum scale is 0.5 °.
The support underframe of the present embodiment is made up of supporting bar and junction button, and supporting bar is all using the aluminium profiles with chute
Material processing grinding forms.The vertical chute guide pillar is a kind of segmented guide pillar for being symmetrically distributed in bridge health test and diagnostics both ends, is passed through
Bolt and fastener are connected with support underframe, and the vertical chute guide rail can move forward and backward along support underframe rod member chute, to meet
Different length Segment Model and diverse location operating mode wind tunnel test test request.Horizontal concrete chute guide pillar leads to the vertical chute guide pillar
Bolt is crossed with fastener to be connected.Horizontal concrete chute guide pillar vertically chute guide pillar can move up and down, to meet that different height is tested
It is required that.The vertical chute guide rail and horizontal concrete chute guide rail are all labeled with scale, after model is adjusted in place, tightens screw and fix, right
Model level degree and position can be accurately positioned, and reduce workload.
Being rotatablely connected detent mechanism includes connection pedestal, balance mounting seat and connection bearing composition.Connect pedestal and bearing
Positive connecting plate is connected by bolt, is fixed at the runner position reserved on connecting plate.Connect pedestal, balance mounting seat
Between configure deep groove ball bearing, it is ensured that balance can easily rotate above base.Due to the prerun of bridge health test and diagnostics
Test the wind angle of attack typically to rotate between -10 °~10 °, therefore -10 °~10 ° of scale, 0 ° of scale are set above balance mounting seat
Directly on top, minimum scale is 0.5 °, and one is respectively provided with the upper left of mounting seat, lower-left, upper right, bottom right four direction
Block button hole along the circumferential direction, for locking specified angle.
Rotation system in the present invention can realize experiment wind angle of attack flexible modulation, and bracket chute system can be applicable different scales
Bridge and operating condition of test.
The aerodynamic balance measuring device of the present invention, it is as follows to carry out system Installation And Test step：
(1) support underframe is fixed on wind-tunnel bottom plate using Simple fastener, and it is accurately positioned, support underframe
Horizontal and vertical chute guide rail installation after, mounting bracket the vertical chute guide pillar, the position of the vertical chute guide pillar can root
It is adjusted according to being actually needed, the vertical chute guide pillar is fixed with support underframe using L-type fastener and bolt, and its fixed form is firm
It is and simple to operate；
(2) after the installation of the vertical chute guide pillar, horizontal concrete chute guide pillar is installed, every section of day flushconnection installs lower two
Horizontal concrete chute guide pillar, for fixed weigher, horizontal concrete chute guide pillar and the vertical chute guide pillar use fastener and bolt connection.
(3) installation connection pedestal and rotation system, connection pedestal are caught in horizontal concrete chute guide pillar, its position are fixed using bolt
Put, after pedestal installation to be connected, by balance with being bolted on base, bridge health test and diagnostics are finally installed to day
On plain now reserved connecting bolt.
(4) after bridge health test and diagnostics and rod-type balance installation, realize balance demarcation and reset, the school of model level degree
Accurate and the angle of attack debugging, can be with very convenient using the scale and rotation system positioning screw hole reserved in balance mounting seat
The debugging for realizing the Segment Model angle of attack.
The above embodiment of the present invention is not limiting the scope of the present invention, and embodiments of the present invention are not limited to
This, all this kind, according to the ordinary technical knowledge and customary means of this area, is not departing from this according to the above of the present invention
Under the premise of inventing above-mentioned basic fundamental thought, modification, replacement or the change of the other diversified forms made to said structure of the present invention
More, all should fall within the scope and spirit of the invention.
Claims (7)
1. the aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test, it is characterised in that：The device for measuring force includes support
With rod-type balance (4), described rod-type balance (4) is horizontally disposed two, and two rod-type balances (4) are symmetrical, two
Rod-type balance (4) is installed in the top of support, bridge health test and diagnostics (100) in test positioned at two rod-type balances (4) it
Between, the device for measuring force can realize two balance synchronous force measurements in the wind tunnel test of bridge health test and diagnostics (100).
2. the aerodynamic balance measuring device according to claim 1 for bridge health test and diagnostics wind tunnel test, it is characterised in that：Institute
The rod-type balance (4) stated is arranged on the top of support, described rotation connection detent mechanism bag by being rotatablely connected detent mechanism
Include connection pedestal (5), balance mounting seat (6) and connection bearing (7), described connection pedestal (5) and be fixedly mounted on the top of support
Portion, connection pedestal (5) have centre bore, and described balance mounting seat (6) has centre bore, the end of the rod-type balance (4)
It is inserted into after the centre bore of balance mounting seat (6) and is connected with balance mounting seat (6) by screw, described balance mounting seat
(6) it is inserted into the centre bore of connection pedestal (5), described connection bearing (7) is arranged on balance mounting seat (6) with being connected pedestal
(5) between, connection bearing (7) ensures that balance mounting seat (6) can relatively rotate with being connected between pedestal (5), and balance is installed
Seat (6) is turned to after installation site to be connected by screw with being connected pedestal (5).
3. the aerodynamic balance measuring device according to claim 2 for bridge health test and diagnostics wind tunnel test, it is characterised in that：Institute
The connection bearing (7) stated is deep groove ball bearing.
4. the aerodynamic balance measuring device according to claim 2 for bridge health test and diagnostics wind tunnel test, it is characterised in that：Institute
The balance mounting seat (6) stated is further opened with the block button hole (61) of four structure identical circular arc, and four block button holes (61) are uniform
It is distributed on same circumference, four block button holes (61) are located at the upper left, lower-left, upper right, the right side of balance mounting seat (6) centre bore respectively
Lower four direction, a soket head cap screw is respectively installed on the notch of each block button hole (61), by soket head cap screw by balance
Mounting seat (6) is locked on connection pedestal (5), and the connection pedestal (5) is being carved with -10 ° above balance mounting seat (6)
~10 ° of curved scale line, 0 ° of scale are located at middle, and minimum scale is 0.5 °.
5. the aerodynamic balance measuring device according to claim 4 for bridge health test and diagnostics wind tunnel test, it is characterised in that：Institute
Central angle corresponding to stating each block button hole (61) is 30 °.
6. the aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test according to right wants 1 to 5 any one, its feature
It is：Described support is can be in the two-way sliding groove type bracket of horizontal and vertical both direction progress bidirectional modulation, the branch
Frame includes support underframe, the vertical chute guide pillar (2) and horizontal concrete chute guide pillar (3), described support underframe by supporting bar (1) and
Junction button forms, and supporting bar (1) is the aluminium section bar with chute, and described the vertical chute guide pillar (2) is vertically arranged, and top has
The vertical chute, bottom have the vertical chute guide rail, and the vertical chute guide rail is inserted into the chute of supporting bar (1), the vertical chute
Guide pillar (2) can move along the length direction of chute, to meet the bridge health test and diagnostics of different length (100) and diverse location
Operating mode wind tunnel test test request, described horizontal concrete chute guide pillar (3) are laterally set, and the end of horizontal concrete chute guide pillar (3) has
Horizontal concrete chute guide rail, horizontal concrete chute guide rail are inserted into the vertical chute of the vertical chute guide pillar (2), horizontal concrete chute guide pillar (3) energy
Enough vertically chutes move up and down, and to meet different height test request, after bridge health test and diagnostics (100) are adjusted in place, use
Screw respectively twists the vertical chute guide pillar (2) and supporting bar (1) and horizontal concrete chute guide pillar (3) with the vertical chute guide pillar (2)
Tightly, described rod-type balance (4) is rack-mounted on described horizontal concrete chute guide pillar (3).
7. the aerodynamic balance measuring device according to claim 6 for bridge health test and diagnostics wind tunnel test, it is characterised in that：Institute
Scale is all labeled with the vertical chute guide rail and horizontal concrete chute guide rail stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710902835.XA CN107607289A (en) | 2017-09-29 | 2017-09-29 | Aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710902835.XA CN107607289A (en) | 2017-09-29 | 2017-09-29 | Aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107607289A true CN107607289A (en) | 2018-01-19 |
Family
ID=61057848
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710902835.XA Pending CN107607289A (en) | 2017-09-29 | 2017-09-29 | Aerodynamic balance measuring device for bridge health test and diagnostics wind tunnel test |
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| Country | Link |
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| CN (1) | CN107607289A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470445A (en) * | 2018-12-24 | 2019-03-15 | 浙江大学 | A kind of freely-supported type air tunnel testing device for growing thin component resistance coefficient |
| CN110779675A (en) * | 2019-12-03 | 2020-02-11 | 西南交通大学 | Wind tunnel test device for vehicle and bridge model |
| CN113804395A (en) * | 2021-08-23 | 2021-12-17 | 中国水利水电第五工程局有限公司 | Testing device for simulating loading conditions of rail train and bridge |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470445A (en) * | 2018-12-24 | 2019-03-15 | 浙江大学 | A kind of freely-supported type air tunnel testing device for growing thin component resistance coefficient |
| CN109470445B (en) * | 2018-12-24 | 2020-03-17 | 浙江大学 | Simply supported wind tunnel testing device for resistance coefficient of long and thin component |
| CN110779675A (en) * | 2019-12-03 | 2020-02-11 | 西南交通大学 | Wind tunnel test device for vehicle and bridge model |
| CN110779675B (en) * | 2019-12-03 | 2024-06-07 | 西南交通大学 | Wind tunnel test device for vehicle and bridge model |
| CN113804395A (en) * | 2021-08-23 | 2021-12-17 | 中国水利水电第五工程局有限公司 | Testing device for simulating loading conditions of rail train and bridge |
| CN113804395B (en) * | 2021-08-23 | 2024-05-28 | 中国水利水电第五工程局有限公司 | Testing device for simulating loading conditions of rail train and bridge |
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