CN209841329U - Internal and external double-frame supporting system capable of realizing double-angle change - Google Patents
Internal and external double-frame supporting system capable of realizing double-angle change Download PDFInfo
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- CN209841329U CN209841329U CN201920697523.4U CN201920697523U CN209841329U CN 209841329 U CN209841329 U CN 209841329U CN 201920697523 U CN201920697523 U CN 201920697523U CN 209841329 U CN209841329 U CN 209841329U
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- frame
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- disc
- angle
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
An internal and external double-frame supporting system for realizing double-angle change comprises an internal frame, an external frame and a turntable; the rotary table is rotatably connected with the wind tunnel wall, the lower end of the outer frame is connected with the wind tunnel wall through the rotary table, and the inner frame is rotatably connected with the outer frame. The utility model realizes the purpose of synchronous force measurement of the rigid body model by a plurality of high-frequency dynamic force measuring balances through linkage among all parts, and compared with the prior art, the test result is more accurate and reliable, and the error is small; when the wind drift angle or the wind attack angle needs to be adjusted, the rotation angle of the turntable and the disc only needs to be adjusted, the test equipment or parts of the test equipment do not need to be disassembled, and the test equipment is simple and convenient to operate and high in test efficiency.
Description
Technical Field
The utility model relates to a braced system, especially an inside and outside double-frame braced system who realizes two angle changes belong to wind-tunnel test technical field.
Background
The wind resistance problem becomes the key problem of building design, and the accurate measurement of the aerodynamic force parameter is a very important link when the rigid body model is used for wind resistance design checking calculation. At present, a force measuring device of a rigid body model directly fixes the rigid body model to be measured in a wind tunnel on a large balance, the large balance is connected with a rotating disc of the wind tunnel, and a wind deflection angle is adjusted by rotating the rotating disc, but the wind deflection angle cannot be adjusted, so that the test conditions lack diversity. Because only one large balance is provided, the obtained result has large error, and therefore comprehensive and accurate test data cannot be obtained.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to the not enough of above-mentioned prior art, the utility model provides a can carry out synchronous dynamometry to rigid body model, adjust wind angle of attack, wind declination simultaneously, test error is little, the inside and outside double-frame braced system that experimental data is comprehensive, accurate.
In order to achieve the above object, the utility model adopts the following technical scheme: an internal and external double-frame supporting system for realizing double-angle change comprises an internal frame, an external frame and a turntable; the rotary table is rotatably connected with the wind tunnel wall, the outer frame is fixed on the rotary table, and the inner frame is rotatably connected with the outer frame.
Preferably, the middle part of the upper end of the outer frame is connected with the wind tunnel wall through a bearing, the middle parts of the left side and the right side of the outer frame are respectively provided with a disc, one surface of each disc is rotatably connected with the outer frame, and the other surface of each disc is fixedly connected with the inner frame.
Preferably, the disc is marked with wind attack angle scales.
Preferably, the rotary disc is marked with windage yaw angle scales.
Compared with the prior art, the utility model has more accurate and reliable test result and small error; when the wind drift angle or the wind attack angle needs to be adjusted, the rotation angle of the rotary disc or the disc only needs to be adjusted, the test equipment or parts of the test equipment do not need to be disassembled, the operation is simple and convenient, the test efficiency is high, on the other hand, the disc and the rotary disc are marked with scales, and the wind attack angle or the wind drift angle can be observed more clearly when the test equipment or the parts of the test equipment are adjusted.
Drawings
Fig. 1 is a usage state diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
FIG. 3 is a schematic structural diagram of a rigid body model.
Fig. 4 is a schematic structural view of a high-frequency dynamic force balance.
Fig. 5 is a perspective view of the present invention.
Fig. 6 is a schematic rotation diagram of the present invention.
In the figure, 1-the outer frame; 2-an inner frame; 3-a disc; 4-a turntable; 5-rigid body model; 6-high frequency dynamic force balance; 7-upper compensation section; 8-a test section; 9-lower compensation section.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-6: an internal and external double-frame support system for realizing double-angle change comprises an internal frame 2, an external frame 1, a turntable 4, a rigid body model 5 and a force measuring balance; the wind tunnel is characterized in that the turntable 4 is rotationally connected with a wind tunnel wall, the outer frame 1 is fixed on the turntable 4, the inner frame 2 is rotationally connected with the outer frame 1, the upper end and the lower end of the rigid body model 5 are respectively fixed on the upper side and the lower side of the inner frame 2, and the force measuring balance is arranged on the rigid body model 5; the force measuring balances are high-frequency dynamic force measuring balances 6, and the number of the force measuring balances is not less than 1; the rigid body model 5 is divided into an upper compensation section 7, a test section 8 and a lower compensation section 9; the upper end of the upper compensation section 7 is connected with the middle part of the upper end of the inner frame 2, the lower end of the lower compensation section 9 is connected with the middle part of the lower end of the inner frame 2, two ends of the test section 8 are respectively connected with the upper compensation section 7 and the lower compensation section 9, the upper compensation section 7 and the lower compensation section 9 are used for maintaining the stability of aerodynamic force of the test section 8, reducing the influence of other factors on the test process and improving the accuracy of the test result; the lower end of a test section 8 of the rigid body model 5 is connected with an upper end plate of a high-frequency dynamic force measuring balance 6, the upper end of a lower compensation section 9 is connected with a lower end plate of the high-frequency dynamic force measuring balance 6, the lower end of the lower compensation section 9 is connected with the lower end of an inner frame 2, and the upper end of an upper compensation section 7 is connected with the upper end of the inner frame 2; the wind tunnel is characterized in that the middle of the upper end of the outer frame 1 is connected with a wind tunnel wall through a bearing, the middle parts of the left side and the right side of the outer frame 1 are respectively provided with a disc 3, one surface of each disc 3 is rotatably connected with the outer frame 1, the other surface of each disc is fixedly connected with the inner frame 2, and wind attack angle scales are marked on the discs 3.
The utility model discloses a linkage between each position to the realization is carried out the purpose of synchronous dynamometry to the rigid body model by a plurality of high frequency developments dynamometry balances. Before the test, the adjustment of the wind attack angle required by the test can be completed by adjusting the rotation angle of the disc, the adjustment of the wind deflection angle required by the test is completed by adjusting the rotation angle of the disc, and the rigid body model force measurement wind tunnel test under the working conditions of the set wind deflection angle and the set wind attack angle is performed by starting the fan. In the test process, an anemometer is used for collecting wind speed time-course data, and the data of force and moment applied to the rigid body model test section is measured by a high-frequency dynamic force measuring balance of the rigid body model test section, so that the data of the force and moment of the rigid body model test section under the working conditions of the set wind drift angle and the wind attack angle are obtained. Through this inside and outside double-frame braced system, can realize the quick adjustment to wind declination or wind angle of attack, need not to do any dismantlement to test equipment or its part, easy operation, convenience, test efficiency is high, and disc and carousel all mark the scale simultaneously, can more clearly observe when adjusting wind angle of attack or wind declination, and on the other hand, because there are a plurality of dynamic dynamometry balances to test simultaneously, the test result is more accurate, reliable, and the error is little.
Claims (3)
1. The utility model provides an inside and outside double-frame braced system that realizes two angle changes which characterized in that: comprises an inner frame, an outer frame and a turntable; the rotary table is rotationally connected with the wind tunnel wall, the outer frame is fixed on the rotary table, and the inner frame is rotationally connected with the outer frame; the middle part of the upper end of the outer frame is connected with the wind tunnel wall through a bearing, the middle parts of the left side and the right side of the outer frame are respectively provided with a disc, one surface of each disc is rotatably connected with the outer frame, and the other surface of each disc is fixedly connected with the inner frame.
2. The inner and outer double-frame support system for achieving double-angle change as claimed in claim 1, wherein: the disc is marked with wind attack angle scales.
3. The inner and outer double-frame support system for achieving double-angle change as claimed in claim 1, wherein: the rotary disc is marked with windage yaw angle scales.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920697523.4U CN209841329U (en) | 2019-05-15 | 2019-05-15 | Internal and external double-frame supporting system capable of realizing double-angle change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920697523.4U CN209841329U (en) | 2019-05-15 | 2019-05-15 | Internal and external double-frame supporting system capable of realizing double-angle change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209841329U true CN209841329U (en) | 2019-12-24 |
Family
ID=68897213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920697523.4U Expired - Fee Related CN209841329U (en) | 2019-05-15 | 2019-05-15 | Internal and external double-frame supporting system capable of realizing double-angle change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209841329U (en) |
-
2019
- 2019-05-15 CN CN201920697523.4U patent/CN209841329U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200709 Address after: 515000, 243, University Road, Jinping District, Guangdong, Shantou Co-patentee after: Hainan Zhongjiao expressway investment and Construction Co.,Ltd. Patentee after: SHANTOU University Address before: 515063, 243, University Road, Jinping District, Guangdong, Shantou Patentee before: SHANTOU University |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |