CN109406086A - One kind being arranged symmetrically formula building structure synchronous gas bullet-survey is pressed-and surveys Air Force device - Google Patents
One kind being arranged symmetrically formula building structure synchronous gas bullet-survey is pressed-and surveys Air Force device Download PDFInfo
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- CN109406086A CN109406086A CN201811252572.3A CN201811252572A CN109406086A CN 109406086 A CN109406086 A CN 109406086A CN 201811252572 A CN201811252572 A CN 201811252572A CN 109406086 A CN109406086 A CN 109406086A
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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
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Abstract
Formula building structure synchronous gas bullet-survey is pressed-, which is arranged symmetrically, the invention discloses one kind surveys Air Force device, it applies in flow tunnel testing device field, including buildings model, mounting base, substrate, deformation bar and foil gauge, the present invention is by designing symmetrical buildings model and wind sensor, it can be achieved to measure the size of test the wind-force size and air inertia force of same point, it tests wind-force size and air inertia force obtains reality by wind-induced aerodynamic force size, make the practical more accurate by wind-induced aerodynamic data of measurement, and manometric test and aeroelastic test can be carried out simultaneously, comprehensive reaction model vibrates the influence to wind load, make experimental analysis data more closing to reality situation, and improve test efficiency.
Description
Technical field
The invention belongs to flow tunnel testing device fields, and in particular to one kind is arranged symmetrically the synchronous gas bullet-survey of formula building structure
Pressure-survey Air Force device.
Background technique
When designing super high-rise building, the wind-excited responese of structure is the factor for needing emphasis to consider in design process, therefore
When designing super high-rise building, must be studied with wind tunnel test come the charming appearance and behaviour effect to buildings model.
In the prior art, the experimental rig function of can be used for studying buildings model charming appearance and behaviour effect is all more single, for example, often
Experimental rig used in the wind tunnel pressure measuring experimental rig seen can not simulate vibration of the model under charming appearance and behaviour effect,
The pressure measured does not include the influence (influence of fluid structurecoupling) of structural vibration, therefore measurement result can not reaction model vibration comprehensively
The dynamic influence to wind load, and can have air inertia force in model vibration processes, existing pilot system have ignored pair more
The measurement of the factor power, therefore obtain practical inaccurate by wind-induced aerodynamic force result.For another example common wind-tunnel gas bullet
Test experimental rig used, due to that can not measure the aerodynamic force acted in structure, there is also unilateral for measurement result
Property.Have a small number of testing equipments that can carries out manometric test and aeroelastic test in set of device, but can only by manometric test with
Aeroelastic test two tests carry out respectively, and conventional efficient is lower, and test data is unable to respond the influence vibrated to model.
Summary of the invention
In view of this, the purpose of the present invention is to provide one kind to be arranged symmetrically the synchronous gas bullet-survey pressure of formula building structure-survey sky
Pneumatic plant can synchronize and carry out manometric test and aeroelastic test, and comprehensive reaction model vibrates the influence to wind load, and measures
Air inertia force in model vibration processes out makes to obtain practical more accurate by wind-induced aerodynamic force result.
In order to achieve the above objectives, the invention provides the following technical scheme:
One kind being arranged symmetrically formula building structure synchronous gas bullet-survey is pressed-and surveys Air Force device, including buildings model, mounting base,
Substrate, deformation bar and foil gauge；The substrate level is fixedly installed in wind tunnel test region, and upper surface of base plate is to have test
Wind side, lower surface are without test wind side, and substrate center vertically offers mounting hole；The mounting hole is in the horizontal direction
The left and right sides is arc-shaped；The mounting base is rotatably set in the mounting hole of substrate by a shaft, and its level side
The upward left and right sides is matched arc-shaped in mutually agreeing with mounting hole pattern face；The shaft parallel test wind wind direction setting, and
Its axle center is located on the central axes M on substrate level direction；The arc-shaped center of circle at left and right sides of the mounting base and mounting hole
At the axle center of shaft；The buildings model has identical two, is separately connected and is set to the upper and lower sides of mounting base simultaneously
Symmetrical about central axes M, each buildings model is equipped with wind sensor in the left and right sides of vertical test wind wind direction, and is arranged
Wind sensor in two buildings models is symmetrical about central axes M；The deformation bar has two to be connected to substrate following table relatively
Face, every deformation bar pass through a spring and connect respectively with the left/right surface of buildings model；The foil gauge has two panels difference
Two deformation bar opposite exterior lateral sides are embedded in, and are respectively positioned on above spring.
It preferably, further include damping force simulation mechanism；The damping force simulation mechanism include connecting rod, damping fin, container and
Damping oil；The connecting rod top is connected to the buildings model lower end center of downside, and lower part is connect with damping fin；The vessel port
Upwards, the inside contains damping oil；The damping fin inserts in damping oil in the form of sheets, and the leptoprosopy side of its laminated structure and examination
It is parallel to test wind wind direction.
Preferably, the wind sensor is laid with multiple in each buildings model short transverse.
Preferably, it is 1~3mm that the mounting base, which mutually agrees with the distance between matched arc-shaped surface with mounting hole,.
It preferably, further include flexible pouch；The flexible pouch in superfluous shape be connected to upside buildings model and upper surface of base plate it
Between and downside buildings model and base lower surface between, mounting base is mutually agreed between matched arc-shaped surface with mounting hole
Gap be completely covered.
Preferably, the flexible pouch is plastic bag.
The beneficial effects of the present invention are:
1, the present invention is by designing symmetrical buildings model and wind sensor, it can be achieved that measuring the test wind-force of same point
The size of size and air inertia force, test wind-force size and air inertia force obtain it is practical by wind-induced aerodynamic force size,
Make the practical more accurate by wind-induced aerodynamic data of measurement.
2, the present invention can carry out manometric test and aeroelastic test simultaneously, and comprehensive reaction model vibrates the influence to wind load,
Make experimental analysis data more closing to reality situation, and improves test efficiency.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is one structural schematic diagram of embodiment；
Fig. 2 is two structural schematic diagram of embodiment.
It is marked in attached drawing as follows: buildings model 1, mounting base 2, substrate 3, mounting hole 31, deformation bar 4, foil gauge 5, shaft
6, connecting rod 7, damping fin 8, container 9, damping oil 10, tight fixed bolt 11, wind sensor 12, flexible pouch 13, spring 14.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
Embodiment one
Such as Fig. 1, one kind being arranged symmetrically formula building structure synchronous gas bullet-survey is pressed-and surveys Air Force device, including buildings model 1,
Mounting base 2, substrate 3, deformation bar 4 and foil gauge 5；3 level of substrate is fixedly installed in wind tunnel test region, and substrate 3
Upper surface is to have test wind side, and lower surface is without test wind side, and realizing that one of the mode of wind-force distribution can be will be whole
A experimental rig is placed in wind-tunnel, but the structure below of substrate 3 using enclosing carry out it is completely isolated, realize base lower surface without
Wind；Realizing the two of the mode of wind-force distribution can be the structure of 3 or more substrate is placed in wind-tunnel, the structure below of substrate 3
Be placed in wind-tunnel it is outer (lower part on the outside of wind-tunnel is usually idle space, in order on the downside of wind-tunnel to every test parameters and structure
Adjusting), certainly, those skilled in the art should know, or other structures.
3 central vertical of substrate offers mounting hole 31；The left and right sides of the mounting hole 31 in the horizontal direction is in circular arc
Shape；The mounting base 2 is rotatably set in the mounting hole 31 of substrate 3 by a shaft 6, and the left and right in its horizontal direction
Two sides are matched arc-shaped in mutually agreeing with 31 type face of mounting hole；6 parallel test wind wind direction of the shaft setting, and its axle center position
In on the central axes M in 3 horizontal direction of substrate；The arc-shaped center of circle of 31 left and right sides of the mounting base 2 and mounting hole exists
At the axle center of shaft 6；The buildings model 1 has identical two, is connected in installation by tight fixed bolt 11 respectively
The upper and lower sides of seat 2 are simultaneously symmetrical about central axes M, and each buildings model 1 is equipped with wind-force in the left and right sides of vertical test wind wind direction
Sensor 12, and the wind sensor 12 being arranged in two buildings models 1 is symmetrical about central axes M；The deformation bar 4 has two
Root is opposite to be connected to 3 lower surface of substrate, every deformation bar 4 by a spring 14 respectively with the left/right surface of buildings model 1
Connection；The foil gauge 5 has two panels to be embedded in two 4 opposite exterior lateral sides of deformation bar respectively, and is respectively positioned on 14 top of spring.
When test, the good buildings model 1 two of pre-production is symmetrically installed on to the upper and lower sides of mounting base 2, then will
A whole set of experimental rig is placed in wind-tunnel or substrate 3 is placed in outside wind-tunnel with flowering structure, with specific reference to " 3 upper surface of substrate is to have above
Test wind side, lower surface be without test wind side " implementation.After wind-tunnel starting, test wind wind direction is as shown in Figure 1, make
For buildings model 1, under beam wind effect the swing of 6 left and right directions around the shaft can occur as shown in figure 1 for buildings model 1.
Since the buildings model 1 of upside and the buildings model 1 of downside are symmetrical about central axes M, and each buildings model 1 exists
The left and right sides of vertical test wind wind direction is equipped with wind sensor 12, and the wind sensor being arranged in two buildings models 1
12 is symmetrical about central axes M, and with reference to Fig. 1, i.e. wind sensor A-a is symmetrical, and B-b is symmetrical, and C-c is symmetrical, and D-d is symmetrical, with wind-force
For sensors A-a, A point can measure the size of test wind-force FA, and a point can measure the size of the air inertia force corresponding to A point
Fa, then FA-Fa is exactly practical by wind-induced aerodynamic force size.The arrangement of the symmetrical expression buildings model and wind sensor,
The size of the air inertia force of same point can be measured, then the test wind-force that the point measures is subtracted into inertia force, so that it may be obtained complete
By wind-induced aerodynamic force, relative to the aerodynamic data comprising air inertia force that conventional wind tunnel test measures, this hair is obtained
It is complete by wind-induced aerodynamic data more true and accurate.
At the same time, during buildings model 1 is swung, the buildings model 1 of downside can oppress spring 14 connected to it,
And then deformation occurs for compressing deformation bar 4, and the foil gauge 5 being embedded on deformation bar 4 then obtains survey pressure data, realizes same stepping
Row manometric test and aeroelastic test, comprehensive reaction model vibrate the influence to wind load.
It should be strongly noted that the wire laying mode of above-mentioned wind sensor 12 and foil gauge 5 is received with signal, data obtain
Taking mode is the conventional arrangement of this field, therefore the application does not repeat them here.
Further, the present embodiment further includes damping force simulation mechanism；The damping force simulation mechanism includes connecting rod 7, resistance
Buddhist nun's piece 8, container 9 and damping oil 10；7 top of connecting rod is connected to 1 lower end of the buildings model center of downside, lower part and damping fin
8 connections；9 opening upwards of container, the inside contain damping oil 10；The damping fin 8 is inserted in the form of sheets in damping oil 10, and
The leptoprosopy side of its laminated structure is parallel with test wind wind direction, to ensure that damping fin 8 obtains maximum damping in damping oil 10
Stress surface.It, can (namely control damping fin 8 be immersed and is hindered by adjusting the contact area of damping fin 8 and damping oil 10 during test
The depth of Buddhist nun's oil 10) come adjust buildings model vibration when damping ratio, abundant simulant building structure beam wind effect vibrates
From the isostructural damping stress condition of bottom soil, keep the aerodynamic force measured and pressure value more accurate, closer to actual conditions.
Further, the wind sensor 12 that the present embodiment uses is laid in each 1 short transverse of buildings model
Have multiple, which can disposably realize that the practical of many places improves test efficiency by wind-induced aerodynamic force size, while also side
Just the practical relationship measured between pressure by wind-induced aerodynamic force and foil gauge at different height is analyzed.
Further, mounting base 2 and 31 phase of mounting hole that the present embodiment uses agree between matched arc-shaped surface away from
From for 1~3mm, which can guarantee that mounting base 26 can rotate freely around the shaft in substrate 3, and be unlikely to 3 upside of substrate
Test wind alters wind to 3 downside interference test DATA REASONING of substrate.
Embodiment two
Such as Fig. 2, the difference with embodiment one is, the present embodiment further includes flexible pouch 13, the flexible pouch 13 that this place uses
For plastic bag；The flexible pouch 13 is connected between upside buildings model 1 and 3 upper surface of substrate in superfluous shape and downside is built
Between 3 lower surface of model 1 and substrate, the gap that mounting base 2 and 31 phase of mounting hole are agreed between matched arc-shaped surface is complete
Covering.The flexible pouch 13 of superfluous shape setting can absorb the amplitude of fluctuation of buildings model 1, and mounting base 2 and installation is completely covered
Gap between hole 31 thoroughly prevents the case where altering wind appearance.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (6)
1. one kind is arranged symmetrically formula building structure synchronous gas bullet-survey is pressed-and surveys Air Force device, it is characterised in that: including building mould
Type, mounting base, substrate, deformation bar and foil gauge；
The substrate level is fixedly installed in wind tunnel test region, and upper surface of base plate is to have test wind side, and lower surface is
Without test wind side, substrate center vertically offers mounting hole；
The left and right sides of the mounting hole in the horizontal direction is arc-shaped；
The mounting base is rotatably set in the mounting hole of substrate by a shaft, and the left and right sides in its horizontal direction
It is matched arc-shaped in mutually agreeing with mounting hole pattern face；
The shaft parallel test wind wind direction setting, and its axle center is located on the central axes M on substrate level direction；
The arc-shaped center of circle at left and right sides of the mounting base and mounting hole is at the axle center of shaft；
The buildings model has identical two, is separately connected the upper and lower sides for being set to mounting base and about M pairs of central axes
Claim, each buildings model is equipped with wind sensor in the left and right sides of vertical test wind wind direction, and is arranged in two buildings models
On wind sensor it is symmetrical about central axes M；
The deformation bar have two it is opposite be connected to base lower surface, every deformation bar pass through a spring respectively with building mould
The left/right surface of type connects；
The foil gauge has two panels to be embedded in two deformation bar opposite exterior lateral sides respectively, and is respectively positioned on above spring.
It is arranged symmetrically formula building structure synchronous gas bullet-survey is pressed -2. according to claim 1 and surveys Air Force device, feature
It is: further includes damping force simulation mechanism；The damping force simulation mechanism includes connecting rod, damping fin, container and damping oil；It is described
Connecting rod top is connected to the buildings model lower end center of downside, and lower part is connect with damping fin；The vessel port is upward, and the inside is contained
Fill damping oil；The damping fin inserts in damping oil in the form of sheets, and the leptoprosopy side of its laminated structure and test wind wind direction are flat
Row.
It is arranged symmetrically formula building structure synchronous gas bullet-survey is pressed -3. according to claim 1 and surveys Air Force device, feature
Be: the wind sensor is laid with multiple in each buildings model short transverse.
It is arranged symmetrically formula building structure synchronous gas bullet-survey is pressed -4. according to claim 1 and surveys Air Force device, feature
Be: it is 1~3mm that the mounting base, which mutually agrees with the distance between matched arc-shaped surface with mounting hole,.
It is arranged symmetrically formula building structure synchronous gas bullet-survey is pressed -5. according to claim 4 and surveys Air Force device, feature
It is: further includes flexible pouch；The flexible pouch is connected between upside buildings model and upper surface of base plate in superfluous shape and downside
Between buildings model and base lower surface, gap mounting base mutually agreed with mounting hole between matched arc-shaped surface is covered completely
Lid.
It is arranged symmetrically formula building structure synchronous gas bullet-survey is pressed -6. according to claim 5 and surveys Air Force device, feature
Be: the flexible pouch is plastic bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811252572.3A CN109406086B (en) | 2018-10-25 | 2018-10-25 | Synchronous aeroelastic-pressure measuring-air force measuring device for symmetrically-arranged building structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811252572.3A CN109406086B (en) | 2018-10-25 | 2018-10-25 | Synchronous aeroelastic-pressure measuring-air force measuring device for symmetrically-arranged building structure |
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| Publication Number | Publication Date |
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| CN109406086A true CN109406086A (en) | 2019-03-01 |
| CN109406086B CN109406086B (en) | 2020-05-12 |
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| CN201811252572.3A Active CN109406086B (en) | 2018-10-25 | 2018-10-25 | Synchronous aeroelastic-pressure measuring-air force measuring device for symmetrically-arranged building structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109946036A (en) * | 2019-04-01 | 2019-06-28 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of integrated test method of high-speed wind tunnel dynamometry survey pressure |
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| CN109946036A (en) * | 2019-04-01 | 2019-06-28 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of integrated test method of high-speed wind tunnel dynamometry survey pressure |
| CN109946036B (en) * | 2019-04-01 | 2021-02-26 | 中国空气动力研究与发展中心高速空气动力研究所 | Force and pressure measurement integrated test method for high-speed wind tunnel |
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