CN105258912A - Low-speed wind tunnel model test support device based on internal balance - Google Patents
Low-speed wind tunnel model test support device based on internal balance Download PDFInfo
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- CN105258912A CN105258912A CN201510776333.8A CN201510776333A CN105258912A CN 105258912 A CN105258912 A CN 105258912A CN 201510776333 A CN201510776333 A CN 201510776333A CN 105258912 A CN105258912 A CN 105258912A
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- transition piece
- shaped structure
- internal balance
- wind tunnel
- pole
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 50
- 238000010276 construction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
The invention discloses a low-speed wind tunnel model test support device based on an internal balance. The device comprises a support strut. A joint of the support strut is of an upwardly-opened U-shaped structure. Two vertical edges of the U-shaped structure are provided with cylindrical pin holes respectively. The U-shaped structure is internally provided with a transition connection piece which is of a cylindrical structure. One end of the transition connection piece is opened, the other end of the transition connection piece is of a flange structure, and a side surface of the transition connection piece is provided with a cylindrical pin hole. A cylindrical pin sequentially passes through the cylindrical holes in the U-shaped structure and the transition connection piece to fix the transition connection piece in the U-shaped structure. With the adoption of the structure provided by the invention, usage of an internal balance and usage of an external balance can be met at the same time, a set of support device can meet different test requirements in the wind tunnel test, and replacement of the support device due to usage in the test process is not required.
Description
Technical field
The present invention relates to wind tunnel test field, especially relate to a kind of low-speed wind tunnel model test bracing or strutting arrangement based on internal balance.
Background technology
4 meters × 3 meters wind-tunnel are used for main force's bracing or strutting arrangement of transporter class typical load cell test, are single-point (or the 2 points) bracing or strutting arrangements designed based on tower six component mechanical strain balances.But according to the needs that type aircraft wind tunnel test task is expanded, developing internal balance technology, to form the typical load cell test capability of interior formula, external balance complementation.But the critical piece in existing single-point (or 2 points) bracing or strutting arrangement---support pole and manufacture and design for external balance, the test demand of internal balance cannot be met, because both interfaces are completely different.Web joint based on the support pole of external balance and the hollow design of model inside is fixed with main straight pin, so head design squarely (see Fig. 1, Fig. 2); And be connected with the balance being arranged on model inside based on the support pole of internal balance, due to balance by volume, intensity, rigidity limit and cannot make hollow, therefore original support pole cannot be applied on internal balance.
Summary of the invention
The object of the invention is in the state of the art, provide a kind of can meet to support can meet again to the installation of external balance the installation of internal balance is supported.
For achieving the above object, the present invention adopts following technical scheme:
Based on a low-speed wind tunnel model test bracing or strutting arrangement for internal balance, comprise and support pole:
The connector of described support pole is the U-shaped structure of opening upwards, two vertical edges of U-shaped structure are respectively arranged with cylinder pin hole, transition piece is provided with in described U-shaped structure, described transition piece is tubular construction, one end open, the other end is flange arrangement, the side of transition piece is provided with cylinder pin hole, transition piece is fixed in U-shaped structure through the cylindrical hole in U-shaped structure and transition piece by straight pin successively, internal balance is provided with in described transition piece, internal balance one end is fixedly attached on flange arrangement, the other end is connected to tested model, described transition piece is provided with a tail joint, the end of tail joint connects support sting, the other end of support sting is connected on driving mechanism.
In technique scheme, upper surface and the lower surface of described transition piece are provided with threaded hole, and described tail joint is fixed by screws in upper surface or the lower surface of transition piece.
In technique scheme, described support pole inside is hollow structure, and the side supporting pole is provided with breach.
In technique scheme, it is characterized in that described breach is arranged along support pole vertical direction.
In technique scheme, the driving stem in driving mechanism is vertically arranged on and supports in pole, moves up and down under the effect of driving mechanism along support pole.
In technique scheme, described tail joint is arranged on the lower surface of transition piece, and the support sting other end be connected with tail joint extend into support in pole by the breach supporting pole side and is connected with driving stem.
The present invention also provides a kind of low-speed wind tunnel model test bracing or strutting arrangement based on internal balance, comprise and support pole, the connector of described support pole is the U-shaped structure of opening upwards, two vertical edges of U-shaped structure are respectively arranged with cylinder pin hole, transition piece is provided with in described U-shaped structure, described transition piece is tubular construction, one end open, the other end is flange arrangement, the side of transition piece is provided with cylinder pin hole, transition piece is fixed in U-shaped structure through the cylindrical hole in U-shaped structure and transition piece by straight pin successively, internal balance is provided with in described transition piece, internal balance one end is fixedly attached on flange arrangement, the other end is connected to tested model, the other end supporting pole is connected on driving mechanism by ring flange.
In technique scheme, described pole and internal balance are on same axis.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
In this device, support pole head design is become fork-shaped, internal balance and connecting cylinder thereof can be passed from its centre, both ensure that model can accurately be located, making again support strength to be guaranteed, is use internal balance to carry out the indispensable critical component of wind tunnel model test.
Devise connecting cylinder, become the transition piece between internal balance and fork-shaped support pole, this is unexistent at 4 meters × 3 meters low-speed wind tunnels.Similarly, connecting cylinder is also use internal balance to carry out the indispensable critical component of wind tunnel model test.
This device all parts profile is simple, easy to process, and between each parts, the main screw that leans on is connected with straight pin, installs also very convenient; Wind tunnel test shows, this device can be applicable to 4 meters × 3 meters low-speed wind tunnel model tests based on internal balance completely.
Certainly, apparatus of the present invention, under the use prerequisite achieving internal balance, can meet the use of external balance equally, make this device have wider usable range.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the structural representation of existing support pole;
Fig. 2 is the work structuring schematic diagram of existing support pole;
Fig. 3 is the structural representation of support pole of the present invention;
Fig. 4 is the structural representation of transition piece in the present invention;
Fig. 5 is the work structuring schematic diagram that the present invention supports pole;
Wherein: 1 is support pole, and 2 is support stings, and 3 is tail joints, and 4 is transition pieces, and 5 is straight pins, and 6 is internal balances, and 7 is tested models.
Embodiment
As shown in Figure 1 and Figure 2, this is at present conventional support pole, but this pole is the support of external balance and designing, and what the supporting member therefore supporting pole adopted is square structure, but this structure cannot support internal balance.
Be the support pole that the present invention designs as shown in Figure 3, what upper end adopted is U-shaped structure, and lower end is the same with existing structure.And on two vertical edges of U-shaped structure, cylinder pin hole is set, for being fixedly connected with.
As shown in Figure 4, be the transition piece that the present invention designs, this is one of emphasis of the present invention, adopts this design to be to coordinate U-shaped structure, and transition piece adopts tubular construction, an end face opening, and another end face is designed to flange arrangement; Two vertical sides of transition piece are respectively arranged with cylinder pin hole, play fixation.Transition piece is respectively arranged with threaded hole on the upper surface and lower surface of flange arrangement one end, for connecting tail joint.
As described in Figure 5, be the structure of single-point support mode, be fixed on one end of internal balance on the flange arrangement in transition piece, the other end of internal balance connects tested model.Then with straight pin, transition piece is fixed in the vertical edge of U-shaped structure, transition piece can be swung up and down in U-shaped structure.The lower surface of transition piece is fixedly connected with a tail joint by screw thread, then support sting is connected as one by the mode of straight pin and tail joint.The other end of support sting is connected on the driving pole of driving mechanism, in order to save space, general is hollow structure by the indoor design of support pole, and offer breach in side vertical direction, the driving pole of driving mechanism be arranged on and support in pole, support sting is connected with driving pole through the breach supporting pole side.Such design, driving mechanism is operationally driven and drives pole to move up and down, thus drive support sting motion, form an angle between support sting and driving pole and arrange, therefore when support sting one end moves up and down, the other end will drive transition piece to swing up and down in U-shaped structure, thus carries out the change to tested model attitude angle.
When needs employing 2 supporting way, only need support sting to remove, connection pole is connected to the rear of tested model, make connection pole and internal balance keep coaxial position, the other end connecting pole is connected to drives structure.
Above-mentioned described enforcement is all directed to internal balance, certainly adopts the device of the present invention's design also can adopt external balance.In the immovable situation of integral layout, whole bracing or strutting arrangement is arranged on external balance and carries out testing.Single-point support mode and 2 supporting way all adopt above-mentioned structure.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (8)
1., based on a low-speed wind tunnel model test bracing or strutting arrangement for internal balance, comprise and support pole, it is characterized in that:
The connector of described support pole is the U-shaped structure of opening upwards, two vertical edges of U-shaped structure are respectively arranged with cylinder pin hole, transition piece is provided with in described U-shaped structure, described transition piece is tubular construction, one end open, the other end is flange arrangement, the side of transition piece is provided with cylinder pin hole, transition piece is fixed in U-shaped structure through the cylindrical hole in U-shaped structure and transition piece by straight pin successively, internal balance is provided with in described transition piece, internal balance one end is fixedly attached on flange arrangement, the other end is connected to tested model, described transition piece is provided with a tail joint, the end of tail joint connects support sting, the other end of support sting is connected on driving mechanism.
2. a kind of low-speed wind tunnel model test bracing or strutting arrangement based on internal balance according to claim 1, it is characterized in that upper surface and the lower surface of described transition piece are provided with threaded hole, described tail joint is fixed by screws in upper surface or the lower surface of transition piece.
3. a kind of low-speed wind tunnel model test bracing or strutting arrangement based on internal balance according to claim 1, it is characterized in that described support pole inside is for hollow structure, the side supporting pole is provided with breach.
4. a kind of low-speed wind tunnel model test bracing or strutting arrangement based on internal balance according to claim 3, is characterized in that described breach is arranged along support pole vertical direction.
5. a kind of low-speed wind tunnel model test bracing or strutting arrangement based on internal balance according to claim 3, is characterized in that the driving stem in driving mechanism vertically arranges in support pole, moves up and down under the effect of driving mechanism along support pole.
6. any the low-speed wind tunnel model test bracing or strutting arrangement based on internal balance according to claim 2,4,5, it is characterized in that described tail joint is arranged on the lower surface of transition piece, the support sting other end be connected with tail joint extend into support in pole by the breach supporting pole side and is connected with driving stem.
7., based on a low-speed wind tunnel model test bracing or strutting arrangement for internal balance, comprise and support pole, it is characterized in that:
The connector of described support pole is the U-shaped structure of opening upwards, two vertical edges of U-shaped structure are respectively arranged with cylinder pin hole, transition piece is provided with in described U-shaped structure, described transition piece is tubular construction, one end open, the other end is flange arrangement, the side of transition piece is provided with cylinder pin hole, transition piece is fixed in U-shaped structure through the cylindrical hole in U-shaped structure and transition piece by straight pin successively, internal balance is provided with in described transition piece, internal balance one end is fixedly attached on flange arrangement, the other end that the other end is connected to tested model support pole is connected on driving mechanism by ring flange.
8. a kind of low-speed wind tunnel model test bracing or strutting arrangement based on internal balance according to claim 7, is characterized in that described pole and internal balance are on same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510776333.8A CN105258912B (en) | 2015-11-13 | 2015-11-13 | A kind of low-speed wind tunnel model test support meanss based on internal balance |
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| CN201510776333.8A CN105258912B (en) | 2015-11-13 | 2015-11-13 | A kind of low-speed wind tunnel model test support meanss based on internal balance |
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| CN105258912A true CN105258912A (en) | 2016-01-20 |
| CN105258912B CN105258912B (en) | 2018-03-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105784314A (en) * | 2016-03-04 | 2016-07-20 | 中国空气动力研究与发展中心低速空气动力研究所 | Low-speed wind tunnel virtual flying experimental support device |
| CN106950028A (en) * | 2017-03-01 | 2017-07-14 | 中国航天空气动力技术研究院 | Support component for wind tunnel test |
| CN108254155A (en) * | 2017-12-29 | 2018-07-06 | 中国航天空气动力技术研究院 | One kind is used for high-fineness ratio rail control lateral jet dynamometer check structure |
| CN109540455A (en) * | 2018-11-06 | 2019-03-29 | 中国航天空气动力技术研究院 | A kind of thin-walled model twin beams articulated structure and dynamic test method for supporting |
| CN111811770A (en) * | 2020-09-02 | 2020-10-23 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel model supporting device and adapter based on internal balance |
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| CN103278305A (en) * | 2013-05-24 | 2013-09-04 | 南京航空航天大学 | Wind channel model tail support rod structure capable of actively damping vibration |
| US20140303907A1 (en) * | 2013-04-05 | 2014-10-09 | Kevin M. Roughen | Systems and methods for dynamic force measurement |
| US20150013445A1 (en) * | 2013-07-12 | 2015-01-15 | Airbus Operations (Gmbh | Wind tunnel balance and system with wing model and wind tunnel balance |
| CN204495536U (en) * | 2015-04-07 | 2015-07-22 | 中国直升机设计研究所 | A kind of balance bindiny mechanism of model in wind tunnel |
| CN104897359A (en) * | 2015-06-05 | 2015-09-09 | 中国航天空气动力技术研究院 | Simple identification device for collision between tail of large-slenderness-ratio model and support rod |
| CN205228763U (en) * | 2015-11-13 | 2016-05-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Low speed wind tunnel model test strutting arrangement based on internal balance |
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| US5663497A (en) * | 1996-07-22 | 1997-09-02 | Mole; Philip J. | Six component wind tunnel balance |
| CN103115744A (en) * | 2012-12-27 | 2013-05-22 | 中国航空工业空气动力研究院 | Mirror image supporting rod |
| US20140303907A1 (en) * | 2013-04-05 | 2014-10-09 | Kevin M. Roughen | Systems and methods for dynamic force measurement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784314A (en) * | 2016-03-04 | 2016-07-20 | 中国空气动力研究与发展中心低速空气动力研究所 | Low-speed wind tunnel virtual flying experimental support device |
| CN106950028A (en) * | 2017-03-01 | 2017-07-14 | 中国航天空气动力技术研究院 | Support component for wind tunnel test |
| CN108254155A (en) * | 2017-12-29 | 2018-07-06 | 中国航天空气动力技术研究院 | One kind is used for high-fineness ratio rail control lateral jet dynamometer check structure |
| CN108254155B (en) * | 2017-12-29 | 2020-06-09 | 中国航天空气动力技术研究院 | Rail-controlled lateral jet flow force measurement test structure for large slenderness ratio |
| CN109540455A (en) * | 2018-11-06 | 2019-03-29 | 中国航天空气动力技术研究院 | A kind of thin-walled model twin beams articulated structure and dynamic test method for supporting |
| CN111811770A (en) * | 2020-09-02 | 2020-10-23 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel model supporting device and adapter based on internal balance |
| CN111811770B (en) * | 2020-09-02 | 2020-11-27 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel model supporting device and adapter based on internal balance |
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| CN105258912B (en) | 2018-03-02 |
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