CN116916636A - Wind tunnel balance temperature control device - Google Patents
Wind tunnel balance temperature control device Download PDFInfo
- Publication number
- CN116916636A CN116916636A CN202311184213.XA CN202311184213A CN116916636A CN 116916636 A CN116916636 A CN 116916636A CN 202311184213 A CN202311184213 A CN 202311184213A CN 116916636 A CN116916636 A CN 116916636A
- Authority
- CN
- China
- Prior art keywords
- balance
- heat conduction
- metal skin
- control device
- temperature control
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- 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
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Radiation Pyrometers (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a wind tunnel balance temperature control device, which comprises a balance, wherein the end part of the balance is connected with a heat conduction shielding cover, the heat conduction shielding cover covers the outside of a body of the balance, the heat conduction shielding cover comprises a connecting seat, a metal skin and heat conduction pipes, the metal skin is connected with the connecting seat and is provided with a plurality of heat conduction pipes, the plurality of heat conduction pipes are welded on the outer surface of the metal skin according to different intervals, the outer surface of the metal skin is sprayed with a coating with high emissivity and high absorptivity, and the inner surface of the metal skin is sprayed with a coating with high emissivity and low absorptivity. According to the invention, the heat conduction shielding cover is arranged on the balance, so that the temperature uniformity of the balance can be improved, the influence of the environmental temperature change on the balance measurement is reduced, the balance measurement accuracy is improved, and the problem of the reduction of the measurement accuracy of the balance in a complex temperature environment is solved.
Description
Technical Field
The invention relates to the field of wind tunnel tests, in particular to a wind tunnel balance temperature control device.
Background
In wind tunnel tests, a balance is a special measuring device that measures the aerodynamic forces experienced by the test model. In the test process, the temperature environment where the balance is located is complex, and particularly under the condition of high temperature unevenness, the measurement result of the balance has large deviation, so that the reliability of the test result is affected. In order to improve the measurement accuracy of the balance, the temperature control treatment is needed to be carried out on the balance, so that the balance is ensured to be always under a relatively uniform temperature.
The traditional balance temperature control method is to connect a compensation resistor with a larger temperature coefficient into a bridge loop of the balance so as to reduce the influence of temperature change on balance output, but the method is only suitable for the condition of uniform change of the ambient temperature and has poor effect on the condition of nonuniform change of the ambient temperature.
Disclosure of Invention
The invention aims to provide a wind tunnel balance temperature control device which is used for improving the temperature uniformity of a balance and solving the problem that the traditional balance temperature control method is poor in effect under the non-uniform temperature environment of the balance
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the wind tunnel balance temperature control device comprises a balance, wherein the end part of the balance is connected with a heat conduction shielding cover, and the heat conduction shielding cover covers the outside of a body of the balance.
In the technical scheme, the balance fixed end and the floating end are respectively connected with a heat conduction shielding cover, and the two heat conduction shielding covers are axially arranged and cover outside the balance body.
In the technical scheme, the two heat conduction shielding covers are mutually noninterfere in the axial direction, the end faces of the two heat conduction shielding covers are oppositely arranged, and the distance between the end faces is not more than 2mm.
In the technical scheme, the inner walls of the two heat conduction shielding covers are not contacted with the outer surface of the balance, and the gap between the two heat conduction shielding covers and the outer surface of the balance is not more than 2mm.
In the above technical scheme, the heat conduction shielding cover comprises a connecting seat, a metal skin and a heat conduction pipe, wherein the metal skin is connected with the connecting seat, and the heat conduction pipe is welded on the surface of the metal skin.
In the technical scheme, the heat conducting pipes are welded on the outer surface of the metal skin according to different intervals.
In the above technical scheme, the interval between the heat conduction pipes is small in the region of the metal skin with severe temperature change, and the interval between the heat conduction pipes is large in the region of the metal skin with mild temperature change.
In the technical scheme, the outer surface of the metal skin is coated with the coating with high emissivity and high absorptivity, and the inner surface of the metal skin is coated with the coating with high emissivity and low absorptivity.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
through set up the heat conduction shield cover on the balance, can improve the temperature homogeneity of balance self, reduce the influence of ambient temperature change to the balance measurement, improve the balance measurement accuracy, solved the balance under complicated temperature environment, measure the problem that the accuracy descends.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a heat shield;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a perspective cross-sectional view of the structure of FIG. 2;
wherein: 1 is the connecting seat, 2 is the heat pipe, 3 is the covering, and 4 is the balance.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
As shown in fig. 1, the heat shield in the present embodiment is a schematic structural view, and the heat shield includes three parts, namely, a connection seat 1, a skin 3 and a heat conduction tube 2, wherein the connection seat 1 and the skin 3 are both made of aluminum alloy or copper, and the metal skin 3 has a certain supporting function. The heat conduction pipe 2 is annular, the annular sleeve is sleeved on the surface of a columnar body wound by the metal skin 3, and the heat conduction pipe 2 and the skin 3 are connected into a whole in a welding mode. A plurality of heat conduction pipes 2 are arranged on one heat shielding cover, the heat conduction pipes 2 are welded on the surface of the skin according to a certain interval, the interval between the heat pipes is arranged according to the condition of environmental temperature change, the temperature change is severe in the area, the interval between the heat pipes is small, and otherwise, the interval between the heat pipes is large. In order to have a better heat radiation effect, a layer of high-emissivity and high-absorptivity coating is sprayed on the outer surface of the skin 3, and a layer of high-emissivity and low-absorptivity coating is sprayed on the inner surface of the skin 3, so that the heat shield can uniformly radiate external heat to the balance through the heat shield.
As shown in fig. 2-4, the balance is a heat shield, a heat shield is respectively connected to the fixed end and the floating end of the balance, and the connecting seat 1 of the heat shield is connected with the fixed end and the floating end of the balance through screw connection. The skin 3 of the heat shield is looped over the body of the balance. The skin 3 and the balance body are not interfered with each other, the two heat shields are not interfered with each other between the skin 3, the relative distance between the two heat shields is controlled to be not more than 2mm, and the distance between the heat shields and the surface of the balance is controlled to be not more than 2mm, so that a relatively closed space is formed between the two heat shields and the balance.
The technical principle that this embodiment adopted is that keep apart balance and external complicated temperature environment through high heat conduction shield cover, relies on the high thermal conductivity of shield cover self, with the temperature homogenization processing of shield cover, the rethread shield cover evenly radiates the heat to the balance body, improves the temperature homogeneity of balance self.
By adopting the embodiment to carry out one-time test, the temperature stability control of a certain balance under a complex temperature environment is realized. The test result shows that when the temperature control device is not used, the maximum temperature difference of the balance is about 9 ℃, and when the temperature control device is used, the maximum temperature difference of the balance is about 2.5 ℃, so that the temperature uniformity of the balance is greatly improved, and the measurement accuracy of the balance is greatly improved.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (8)
1. The utility model provides a wind-tunnel balance temperature control device, includes balance, its characterized in that: the end part of the balance is connected with a heat conduction shielding cover, and the heat conduction shielding cover covers the outside of the body of the balance.
2. The wind tunnel balance temperature control device according to claim 1, wherein: the balance fixed end and the floating end are respectively connected with a heat conduction shielding cover, and the two heat conduction shielding covers are axially arranged and cover the outside of the balance body.
3. A wind tunnel balance temperature control device according to claim 2, wherein: the two heat conduction shielding covers are mutually noninterfere in the axial direction, the end faces of the two heat conduction shielding covers are oppositely arranged, and the distance between the opposite end faces is not more than 2mm.
4. A wind tunnel balance temperature control device according to claim 2, wherein: the inner walls of the two heat conduction shielding covers are not contacted with the outer surface of the balance, and the gap between the two heat conduction shielding covers and the outer surface of the balance is not more than 2mm.
5. A wind tunnel balance temperature control device according to any one of claims 1 to 4, wherein: the heat conduction shielding cover comprises a connecting seat, a metal skin and a heat conduction pipe, wherein the metal skin is connected with the connecting seat, and the heat conduction pipe is welded on the surface of the metal skin.
6. The wind tunnel balance temperature control device according to claim 5, wherein: the heat conducting pipes are welded on the outer surface of the metal skin according to different distances.
7. The wind tunnel balance temperature control device according to claim 6, wherein: the metal skin is small in distance between the heat conduction pipes relative to the area with severe temperature change, and the metal skin is large in distance between the heat conduction pipes relative to the area with gentle temperature change.
8. The wind tunnel balance temperature control device according to claim 5, wherein: the outer surface of the metal skin is sprayed with a coating with high emissivity and high absorptivity, and the inner surface of the metal skin is sprayed with a coating with high emissivity and low absorptivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311184213.XA CN116916636B (en) | 2023-09-14 | 2023-09-14 | Wind tunnel balance temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311184213.XA CN116916636B (en) | 2023-09-14 | 2023-09-14 | Wind tunnel balance temperature control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116916636A true CN116916636A (en) | 2023-10-20 |
| CN116916636B CN116916636B (en) | 2023-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311184213.XA Active CN116916636B (en) | 2023-09-14 | 2023-09-14 | Wind tunnel balance temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116916636B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002584A (en) * | 1997-05-17 | 1999-12-14 | Bodenseewerk Geratetechnik Gmbh | Heat protective enclosure and heat protected electronic device |
| TW540996U (en) * | 2002-10-22 | 2003-07-01 | Wuh Choung Ind Co Ltd | Improved heat sink structure |
| CN106197938A (en) * | 2016-06-28 | 2016-12-07 | 中国航天空气动力技术研究院 | Free jet dynamometer check model novel heat-insulation system |
| US20170024496A1 (en) * | 2015-07-22 | 2017-01-26 | The Boeing Company | Methods and apparatus to model thermal mixing for prediction of multi-stream flows |
| JP2017067437A (en) * | 2016-12-02 | 2017-04-06 | 株式会社富士通ゼネラル | Micro flow passage heat exchanger |
| CN111175008A (en) * | 2020-02-20 | 2020-05-19 | 中国空气动力研究与发展中心超高速空气动力研究所 | Heat-insulation tail support rod for hypersonic wind tunnel |
| CN113340558A (en) * | 2021-08-05 | 2021-09-03 | 中国空气动力研究与发展中心高速空气动力研究所 | Rod type balance protection device applied to multistage hypersonic wind tunnel test model |
| CN113432828A (en) * | 2021-05-10 | 2021-09-24 | 中国航空工业集团公司哈尔滨空气动力研究所 | Air bridge device based on annular balance |
| CN215726701U (en) * | 2021-08-05 | 2022-02-01 | 中国空气动力研究与发展中心高速空气动力研究所 | Hypersonic wind tunnel rod type balance heat shield |
| CN115389158A (en) * | 2022-07-18 | 2022-11-25 | 中国航天空气动力技术研究院 | Hypersonic wind tunnel test balance heat insulation device |
| CN116046335A (en) * | 2023-04-03 | 2023-05-02 | 中国空气动力研究与发展中心高速空气动力研究所 | Rod type strain balance working in normal-temperature to low-temperature wide temperature range and application method |
| CN116080218A (en) * | 2022-11-15 | 2023-05-09 | 上海无线电设备研究所 | Satellite surface wave-absorbing skin structure and preparation method thereof |
| CN219628251U (en) * | 2023-03-15 | 2023-09-01 | 石家庄国鑫安全防范系统工程有限公司 | Anti-interference shielding shield |
-
2023
- 2023-09-14 CN CN202311184213.XA patent/CN116916636B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002584A (en) * | 1997-05-17 | 1999-12-14 | Bodenseewerk Geratetechnik Gmbh | Heat protective enclosure and heat protected electronic device |
| TW540996U (en) * | 2002-10-22 | 2003-07-01 | Wuh Choung Ind Co Ltd | Improved heat sink structure |
| US20170024496A1 (en) * | 2015-07-22 | 2017-01-26 | The Boeing Company | Methods and apparatus to model thermal mixing for prediction of multi-stream flows |
| CN106197938A (en) * | 2016-06-28 | 2016-12-07 | 中国航天空气动力技术研究院 | Free jet dynamometer check model novel heat-insulation system |
| JP2017067437A (en) * | 2016-12-02 | 2017-04-06 | 株式会社富士通ゼネラル | Micro flow passage heat exchanger |
| CN111175008A (en) * | 2020-02-20 | 2020-05-19 | 中国空气动力研究与发展中心超高速空气动力研究所 | Heat-insulation tail support rod for hypersonic wind tunnel |
| CN113432828A (en) * | 2021-05-10 | 2021-09-24 | 中国航空工业集团公司哈尔滨空气动力研究所 | Air bridge device based on annular balance |
| CN113340558A (en) * | 2021-08-05 | 2021-09-03 | 中国空气动力研究与发展中心高速空气动力研究所 | Rod type balance protection device applied to multistage hypersonic wind tunnel test model |
| CN215726701U (en) * | 2021-08-05 | 2022-02-01 | 中国空气动力研究与发展中心高速空气动力研究所 | Hypersonic wind tunnel rod type balance heat shield |
| CN115389158A (en) * | 2022-07-18 | 2022-11-25 | 中国航天空气动力技术研究院 | Hypersonic wind tunnel test balance heat insulation device |
| CN116080218A (en) * | 2022-11-15 | 2023-05-09 | 上海无线电设备研究所 | Satellite surface wave-absorbing skin structure and preparation method thereof |
| CN219628251U (en) * | 2023-03-15 | 2023-09-01 | 石家庄国鑫安全防范系统工程有限公司 | Anti-interference shielding shield |
| CN116046335A (en) * | 2023-04-03 | 2023-05-02 | 中国空气动力研究与发展中心高速空气动力研究所 | Rod type strain balance working in normal-temperature to low-temperature wide temperature range and application method |
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| Publication number | Publication date |
|---|---|
| CN116916636B (en) | 2023-11-17 |
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