CN208520547U - A kind of removable provision for disengagement for elimination end effect in wind load test - Google Patents
A kind of removable provision for disengagement for elimination end effect in wind load test Download PDFInfo
- Publication number
- CN208520547U CN208520547U CN201820805955.8U CN201820805955U CN208520547U CN 208520547 U CN208520547 U CN 208520547U CN 201820805955 U CN201820805955 U CN 201820805955U CN 208520547 U CN208520547 U CN 208520547U
- Authority
- CN
- China
- Prior art keywords
- shaped stent
- door shaped
- model
- end effect
- upper head
- 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.)
- Expired - Fee Related
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model discloses a kind of for eliminating the removable provision for disengagement of end effect, including door shaped stent, sleeve, upper head plate, bottom plate and force balance in wind load test；Hinge there are two being set on two bending places of the door shaped stent；The sleeve is nested in the middle part of door shaped stent, can be moved in a certain range；The upper head plate is connected by long threaded rod with door shaped stent and sleeve；The upper head plate is equipped with level(l)ing device；The model is connected by bolt with bottom plate, and bottom plate is arranged in shaft, and shaft is arranged on force balance.Utility model device production is simple, is convenient for assembly and disassembly, can adjust the distance between end plate and model according to demand, can be used for eliminating end effect in wind tunnel test, can more true simulated environment.
Description
Technical field
The utility model design structure wind load test apparatus field, and in particular to one kind is for eliminating end in wind load test
The removable provision for disengagement of effect.
Background technique
In structures under wind wind- tunnel investigation, the end effect of model is can not be ignored the phenomenon that, model structure
End state to structure wake flow form, vortex shedding frequencies, wind force distribution have fairly obvious influence, for guarantee model week
The flowing enclosed is two-dimensional flow and the influence for eliminating end effect, and suitable end plate usually is arranged at model both ends or adds compensator section
Model is to eliminate end effect.But it in actual wind-tunnel wind load test, for the model length of different operating conditions, needs to end plate
Position adjusted repeatedly, it is extremely cumbersome.
Utility model content
The purpose of this utility model is to provide a kind of for eliminating the removable disassembly dress of end effect in wind load test
It sets.
The technical solution adopted in the utility model are as follows: a kind of for eliminating the removable disassembly of end effect in wind load test
Device, including door shaped stent, sleeve, upper head plate, bottom plate and force balance；Two bending places of the door shaped stent are equipped with
Two hinges；The sleeve is nested in the middle part of door shaped stent, can be moved in a certain range；The upper head plate passes through long threaded rod
It is connected with door shaped stent and sleeve；The upper head plate is equipped with level(l)ing device；The model passes through bolt and bottom plate
It is connected, bottom plate is arranged in shaft, and shaft is arranged on force balance.
Further, respectively there are four bolt hole, door shaped stent is fixed by bolts in ground for the door shaped stent two sides.
Further, the model has at a distance from 2mm or so between upper head plate.
Further, the level(l)ing device is horizontal ruler.
The beneficial effect that the utility model generates is: utility model device production is simple, is convenient for assembly and disassembly, can root
According to demand, the distance between end plate and model are adjusted, can be used for eliminating end effect in wind tunnel test, it can more true mould
Near-ring border.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is partial enlarged view at B in Fig. 1；
Fig. 3 is partial enlarged view at A in Fig. 1；
Fig. 4 is the upper head plate schematic diagram of the utility model；
In figure: 1- door shaped stent, 2- long threaded rod, 3- sleeve, 4- hinge, 5- level(l)ing device, 6- upper head plate, 7- mould
Type, 8- bottom plate, 9- shaft, 10- bolt hole, the ground 11-, 12- force balance.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1, the utility model is a kind of for eliminating the removable provision for disengagement of end effect in wind load test,
Including the door shaped stent 1 being placed on wind-tunnel ground, two bottom ends of door shaped stent 1 are bolted on ground 11, and two
Respectively there are four bolts hole 10 for side.
As shown in Fig. 2, door shaped stent 1 is equipped with bent 90 degree of hinge 4, convenient for installing or tearing open on door shaped stent 1
Sleeve 3 is unloaded, before the test, the hinge of the side of door shaped stent can be opened, sleeve 3 is nested on door shaped stent 1.Such as Fig. 3
Shown, sleeve 3 can move left and right on door shaped stent 1.During the test, sleeve 3 is fixed on gate by long threaded rod 2
On bracket 1, the bottom end of long threaded rod 2 is connected and is located at the center point of circular upper plate with upper head plate 6.As shown in figure 4, in upper head plate
6 upper surface is equipped with level(l)ing device 5, and in the present embodiment, level(l)ing device 5 uses horizontal ruler, when on horizontal ruler
When two bubbles are all in intermediate state, then upper head plate is horizontal.
It is equipped with force balance 12 in the ground lower part of wind-tunnel, for aerodynamic force of the measurement model under wind effect.Dynamometry day
The center point of bottom plate 8 is connected on flat 12 by shaft 9, bottom plate 8 can be can be adjusted up and down in height using bolt.When test, mould
Type 7 is bolted on bottom plate 8, and model 7 has at a distance from 2mm or so between upper head plate 6, it is therefore an objective to guarantee
Air-flow is steady, environment locating for more acurrate simulant building thing.
Utility model device production is simple, is convenient for assembly and disassembly, can adjust between end plate and model according to demand
Distance can be used for eliminating end effect in wind tunnel test, can more true simulated environment.
Claims (4)
1. it is a kind of in wind load test eliminate end effect removable provision for disengagement, it is characterised in that: including door shaped stent,
Sleeve, upper head plate, bottom plate and force balance；Hinge there are two being set on two bending places of the door shaped stent；The sleeve
It is nested in the middle part of door shaped stent, can move in a certain range；The upper head plate passes through long threaded rod and door shaped stent and sleeve
It is connected；The upper head plate is equipped with level(l)ing device；Model is connected by bolt with bottom plate, and bottom plate is arranged in shaft
On, shaft is arranged on force balance.
2. it is according to claim 1 a kind of for eliminating the removable provision for disengagement of end effect in wind load test, it is special
Sign is: respectively there are four bolt hole, door shaped stent is fixed by bolts in ground for the door shaped stent two sides.
3. it is according to claim 1 a kind of for eliminating the removable provision for disengagement of end effect in wind load test, it is special
Sign is: the model has at a distance from 2mm or so between upper head plate.
4. it is according to claim 1 a kind of for eliminating the removable provision for disengagement of end effect in wind load test, it is special
Sign is: the level(l)ing device is horizontal ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805955.8U CN208520547U (en) | 2018-05-29 | 2018-05-29 | A kind of removable provision for disengagement for elimination end effect in wind load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805955.8U CN208520547U (en) | 2018-05-29 | 2018-05-29 | A kind of removable provision for disengagement for elimination end effect in wind load test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520547U true CN208520547U (en) | 2019-02-19 |
Family
ID=65339729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820805955.8U Expired - Fee Related CN208520547U (en) | 2018-05-29 | 2018-05-29 | A kind of removable provision for disengagement for elimination end effect in wind load test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520547U (en) |
-
2018
- 2018-05-29 CN CN201820805955.8U patent/CN208520547U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20200529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |