CN106092497A - A kind of erecting device of flex-wing - Google Patents
A kind of erecting device of flex-wing Download PDFInfo
- Publication number
- CN106092497A CN106092497A CN201610450230.7A CN201610450230A CN106092497A CN 106092497 A CN106092497 A CN 106092497A CN 201610450230 A CN201610450230 A CN 201610450230A CN 106092497 A CN106092497 A CN 106092497A
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- umbrella rope
- wing
- flex
- installing plate
- angle
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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
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The erecting device of a kind of flex-wing, including umbrella rope installing plate and support platform.Umbrella rope installing plate is fixed on the upper backup pad of support platform.The center of umbrella rope installing plate length direction is bonding pad.Multiple umbrella rope via it is evenly equipped with in the both sides of bonding pad.The band umbrella rope hold-down bars on some each protrusion this surface is distributed at umbrella rope installing plate lower surface；Each umbrella rope hold-down bars lays respectively at by a umbrella rope via.The flex-wing carrying out wind tunnel test can easily be carried out installing fixing and measuring established angle, angle of attack regulation by the present invention, in conjunction with corresponding measuring instrument equipment, can clearly measure and obtain flex-wing established angle under experimental test state and the angle of attack, and the aerodynamic force situation such as lift under corresponding established angle and the angle of attack, resistance, moment；Utilize this device that the biggest scale model can be used to test simultaneously.
Description
Technical field
The present invention relates to wind tunnel test field, a kind of erecting device for flex-wing aerodynamics force measurement.
Background technology
Wing is the main parts making aircraft have lift, predicts its aerodynamic force the most accurately, is that aircraft sets
The top priority of meter, current most of aircraft are all the rigid wings used, and most domestic wind-tunnel is the most also both for
Rigid wing carries out aerodynamic force test, and the most supporting rigid wings aerodynamics force measurement mounting platform is the most complete, technological means
The most complete.
Corresponding with rigid wing, also having a kind of flex-wing, i.e. this kind aerofoil is to use flexible material to make, meanwhile,
Utilize a number of umbrella rope to maintain and to ensure its shape in flight course and the rigidity being filled.The flexibility of the present invention
The wing, the flexible parafoil in the field such as generally refer to be widely used in airborne air-drop, air transport, agricultural are sowed.This flexibility
The wing is made up of the sewing of airtight textile material, has light weight, is convenient for carrying and the feature such as use.In wind tunnel test, one
As utilize umbrella rope connect measurement apparatus be fixed.But due to its structurally flexible, thus cause it difficult on wind tunnel test platform
Fix to install, and test process wing centre section face is easily involved deformation by external force, without suitably fixedly mounting mode, easily
Produce and swing or skew, thus cause test mode to fix and aerodynamic force is difficult to obtain or obtain that result is inaccurate etc. asks
Topic.It addition, for measuring multiple state values, system also needs to be adjusted the flex-wing angle of attack changing；For surveying in same wind-tunnel
Measure more large-sized model, also tackle supporting umbrella rope and block.
The most domestic be specifically designed for flex-wing wind tunnel test install Research on measuring technique the most less, the most only Sichuan
Zhan Pei state of university 2004 at its Master's thesis " airfoil parachute wind tunnel force measurement technology and engineering estimating method research " to flexible parafoil
Wind-tunnel technique and device are studied, and its wind tunnel test is carried out at base, Mianyang 29 8m × 6m wind-tunnel, erecting device master
If make use of the original measurement apparatus of this wind-tunnel, and improving on its basis, constituting a non-parallel tetragon machine
Structure, by demarcating before test, it is possible to by the method for the conventional control angle of attack, it is achieved soft airfoil parachute fixed frame nominal angle of attack
Change, thus reach to change the purpose of the soft airfoil parachute angle of attack, but this device is improved by special flow tunnel testing device, does not has
Universality, and do not possess change flexible wing umbrella established angle function；Aerospace Life-Support Industries Co., Ltd. Lu Zhang trees etc. were in 2013
Paper " certain type delivered on six four air force observation and control technology exchanging meetings of observing and controlling Professional Committee of air force association of China
Model parafoil aerodynamic characteristics tests technical research " the Special test fixture design that uses its flexible parafoil experimental test carries out
Introducing, its supporting mechanism is made up of a umbrella rope mounting platform, convolution platform, supporting mechanism, external balance and deflector etc., the wing
Umbrella model is placed in wind-tunnel by supporting mechanism, the convolution platform on supporting mechanism around axis of rotation to adjust the angle of attack, but
Umbrella rope cannot be blocked by this device, does not the most possess change flexible wing umbrella established angle function, and sleeve mechanism is positioned at wind-tunnel
Within, bigger on test result impact.
Summary of the invention
It is easily generated swing or skew present in prior art for overcoming, thus affects measuring accuracy, and can not change
The deficiency of flexible wing umbrella established angle, the present invention proposes the erecting device of a kind of flex-wing.
The aerofoil of described flex-wing is by many shapes along exhibition when it uses with the umbrella rope generated of tangential distribution.Umbrella rope
Exhibition along flexible aerofoil is distributed to centrosymmetry.It is distributed in the umbrella rope of both sides, described Zhan Xiang center to collect collection respectively and become two bundles,
And form two umbrella rope joints.Distance between the umbrella rope umbrella rope joint of both sides, described Zhan Xiang center is D.It is characterized in that:
The erecting device of described flex-wing includes umbrella rope installing plate and support platform.Described umbrella rope installing plate is fixed on support
On the upper backup pad of platform.The center of described umbrella rope installing plate length direction is bonding pad.Described bonding pad is at umbrella rope installing plate
The width L=D of length direction.Multiple umbrella rope via it is evenly equipped with in the both sides of described bonding pad.The aperture of described umbrella rope via is
5mm；The hole heart of each adjacent umbrella rope via is away from for 20mm.Some each protrusion this surface is distributed at described umbrella rope installing plate lower surface
Band umbrella rope hold-down bars；Described each umbrella rope hold-down bars lays respectively at by a umbrella rope via.
Described support platform includes base, front support rod and upper backup pad.By living between described base and upper backup pad
Dynamic support bar connects.The fixing hole being connected with wind-tunnel base plate is had on described base；Upper backup pad has with umbrella rope installing plate even
The bolt hole connect.Described movable support rod is divided into epimere and hypomere, is linked by spherical linkage between two sections.Front support rod upper
End is supported on the lower surface of described upper backup pad, and lower end is connected to the hypomere of described movable support rod in the way of hinge joint.
The circumferential surface of described band umbrella rope hold-down bars is fluted, is used for being wound around and fix umbrella rope.
Along with the use of flex-wing is more and more extensive, the acquisition analysis to its aeroperformance also becomes increasingly for important.
For convenience of measuring the flex-wing aerodynamic force obtained under different established angle, state of angle of attack accurately, being also accomplished by one can be by flexibility
Wing reasonable installation is in wind-tunnel, and can easily fix, adjusts and measure its gas under its established angle and the angle of attack and corresponding state
The measurement erecting device of power.And wind tunnel test is owing to being affected by wind-tunnel size, typically uses scale model test, for making survey
Amount result more meets reality, and the model that should enable measurement is the bigger the better.
The present invention is that the test of flex-wing wind-tunnel aerodynamics force measurement provides a kind of new erecting device, uses this device energy side
Just the flex-wing to wind tunnel test to be carried out carries out installing fixing and measuring established angle, angle of attack regulation.Measure in conjunction with corresponding
Instrument and equipment, it is possible to clearly measure and obtain flex-wing established angle under experimental test state and the angle of attack, and install accordingly
The aerodynamic force situations such as lift under angle and the angle of attack, resistance, moment；Utilize this device can use the biggest scale model simultaneously
Test.
In the present invention, bigger for the flex-wing model making wind-tunnel to test, and fix it under single test mode
Established angle and state of angle of attack, state when first flex-wing being used with umbrella rope Zhang Chengqi, then it is parallel to flexible wing with one
The string of a musical instrument and be perpendicular to the flat board matched umbrella rope of its plumb line (α=0).Umbrella rope length after matched, according to wind-tunnel situation, should keep
Flexible aerofoil is in test section center.Uniform multiple equally spaced umbrella rope vias on umbrella rope installing plate, and flat by being positioned at
Umbrella rope length is fixed by the umbrella rope hold-down bars below plate, by the every matched rear remaining length of umbrella rope by umbrella rope hold-down bars
It is fastened at flat plate bottom.
If flexible aerofoil location when wind tunnel test is improper, when maybe needing to adjust flex-wing established angle, directly profit
Carry out length adjustment with original umbrella rope being fastened, block length or the supporting many set umbrella ropes of established angle without to multiple.
In the test of flex-wing aerodynamics force measurement, acquisition and the adjustment of the angle of attack are the most relatively difficult to achieve.Fixing, tune for convenience
The angle of attack of whole flex-wing, above-mentioned flat board is mounted on one can before and after free pitching support platform on.By supporting
Platform drives umbrella rope cutoff plate to carry out pitch rotation.So, the luffing angle of this bar need to only be adjusted, so that it may adjust flexibility accordingly
The luffing angle of the wing.The flex-wing angle of attack can be measured the flat board angle of attack directly give by demarcating flexible aerofoil and flat board angle of attack relation.
The flex-wing carrying out wind tunnel test can easily be carried out installing fixing and measuring established angle, angle of attack tune by the present invention
Joint.In conjunction with corresponding measuring instrument equipment, it is possible to clearly measure obtain flex-wing established angle under experimental test state and
The aerodynamic force situations such as lift under the angle of attack, and corresponding established angle and the angle of attack, resistance, moment；Utilize this device to use simultaneously
The biggest scale model is tested.
The present invention is to same size wind-tunnel, it is possible to use the biggest flex-wing scale model to test, and to examination
The flex-wing established angle tested and state of angle of attack are fixed；Owing to umbrella rope is cut by the present invention, constantly (umbrella rope blocks by being positioned at
Umbrella rope hold-down bars under plate is wound fixing), therefore umbrella rope can be blocked length and carry out free adjustment, to facilitate adjustment flex-wing
Position and its established angle in wind-tunnel, without standby many set umbrella ropes；By being positioned at can freely carry out under wind-tunnel base plate
Luffing angle regulation and fixing support platform, can easily adjust the flex-wing angle of attack in process of the test；Soft by demarcating
Property aerofoil and flat board angle of attack relation, the flex-wing angle of attack can directly give without carrying out flex-wing by measuring the flat board angle of attack again
Complicated radiographic measurement.Use suitable dynamometry instrument and method, such as six COMPONENT BALANCE are placed in this bottom of device, to entirety
Device carries out stress measurement, then by test data conversion methods such as initial value demarcation, geometrical analysis and coordinate transforms, can draw
Aerodynamic force (lift, resistance and the moment) situation that flex-wing is suffered at the test condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of umbrella rope installing plate；
Fig. 3 is the sectional view of Fig. 2；
Fig. 4 be umbrella rope with umbrella rope installing plate coordinate schematic diagram；
Fig. 5 is the structural representation of support platform；
Fig. 6 is the schematic diagram of flexible aerofoil umbrella rope；
Fig. 7 is the forward schematic diagram that flexible aerofoil coordinates with the present invention
Fig. 8 is the side schematic view that flexible aerofoil coordinates with the present invention.In figure:
1. flexible aerofoil；2. umbrella rope；3. umbrella rope joint；4. erecting device；5. umbrella rope installing plate；6. support platform；7.
Connecting bolt；8. bolt hole；9. umbrella rope via；10. umbrella rope hold-down bars；11. upper backup pads；12. movable support rods；13. is spherical
Hinge；14. bases；15. fixing holes；16. front support rods；17. bearing pins.
Detailed description of the invention
Fig. 5 is flexible aerofoil 1 and the integral installation relation schematic diagram of umbrella rope 2.Flexible aerofoil 1 is opened up to chord by many edges
Shape when it uses to the umbrella rope generated of distribution.Umbrella rope is distributed along the exhibition of flexible aerofoil to centrosymmetry.It is distributed in described exhibition
Collect collection respectively to the umbrella rope of both sides, center and become two bundles, and form two umbrella rope joints 3.Both sides, described Zhan Xiang center umbrella rope
Distance between umbrella rope joint 3 is D.
The present embodiment is the erecting device of a kind of flex-wing, including umbrella rope installing plate 5 and support platform 6.Described umbrella rope is pacified
There is screw the length direction center of dress plate 5, by this umbrella rope installing plate 5 by the solid upper backup pad 11 in support platform 6 of bolt
On.It is bonding pad at described umbrella rope installing plate length direction center, bolt hole 8 is distributed in this bonding pad.Described bonding pad exists
The width L=D of umbrella rope installing plate length direction.Multiple umbrella rope via 9 it is evenly equipped with in the both sides of described bonding pad.
The aperture of described umbrella rope via 9 is 5mm；The hole heart of each adjacent umbrella rope via is away from for 20mm.Install at described umbrella rope
Plate 5 lower surface is distributed the band umbrella rope hold-down bars 10 on some each this surfaces of protrusion；And make each umbrella rope hold-down bars lay respectively at one
Umbrella rope via 9 is other.The circumferential surface of described band umbrella rope hold-down bars 10 is fluted, is used for being wound around and fix umbrella rope.
Described support platform 6 includes base 14, front support rod 16 and upper backup pad 11.Described base 14 and upper backup pad 11
Between connected by movable support rod 12.The fixing hole 15 being connected with wind-tunnel base plate is had on described base；Upper backup pad has
The bolt hole 8 being connected with umbrella rope installing plate.Described movable support rod is divided into epimere and hypomere, by spherical linkage 13 between two sections
Hinge joint.The upper end of front support rod 16 is supported on the lower surface of described upper backup pad, and lower end is connected to described work in the way of hinge joint
The hypomere of dynamic support bar.
During use:
As shown in Figure 7.Umbrella rope 2 is matched, with flex-wing during guarantee test at the umbrella rope installing plate upper surface of erecting device 4
Face 1 is in the medium position of test chamber, simultaneously, additionally it is possible to the effect of fixing flexible aerofoil 1 angle of attack when playing test.
The fixing point of each umbrella rope is marked by the length that must be positioned at umbrella rope installing plate upper surface according to umbrella rope 2.By each umbrella
The umbrella rope via 9 that rope 2 is placed through on umbrella rope installing plate 5.The fixed point of labelling is wrapped in the groove of umbrella rope hold-down bars 10
Place also fastens, and i.e. completes length matched and fixing of umbrella rope.
If flexible aerofoil established angle need to be adjusted, respectively arrange umbrella rope along this flexibility aerofoil is tangential from leading edge to trailing edge by adjusting
Length can realize.Specifically, according to adjusting flexible aerofoil setting angle, the leading edge tangential from this flexibility aerofoil will to trailing edge
Umbrella rope is received short the most successively or lengthens and make the length of same row's umbrella rope unanimously, can change flexible aerofoil established angle.
In the present embodiment, upper backup pad 11 carries out pitch rotation by the spherical linkage 13 on movable support rod 12, when turning
To when testing the angle needed, i.e. supported fixing by front support rod 16.Utilize the present embodiment, when testing, it is not necessary to real every time
Umbrella rope is carried out severing destruction, only need to utilize be positioned at the umbrella rope hold-down bars 10 under each hole to umbrella at umbrella rope through behind hole
Rope carries out length to be fixed.
Claims (3)
1. an erecting device for flex-wing, along exhibition, to the umbrella rope generated of tangential distribution, it makes the aerofoil of flex-wing by many
The shape of used time；Umbrella rope is distributed along the exhibition of flexible aerofoil to centrosymmetry；It is distributed in the umbrella rope of both sides, described Zhan Xiang center respectively
Collect collection and become two bundles, and form two umbrella rope joints；Distance between the umbrella rope umbrella rope joint of both sides, described Zhan Xiang center
For D；It is characterized in that:
The erecting device of described flex-wing includes umbrella rope installing plate and support platform；Described umbrella rope installing plate is fixed on support platform
Upper backup pad on；The center of described umbrella rope installing plate length direction is bonding pad；Described bonding pad is in umbrella rope installing plate length
The width L=D in direction；Multiple umbrella rope via it is evenly equipped with in the both sides of described bonding pad；The aperture of described umbrella rope via is 5mm；
The hole heart of each adjacent umbrella rope via is away from for 20mm；The band on some each protrusion this surface is distributed at described umbrella rope installing plate lower surface
Umbrella rope hold-down bars；Described each umbrella rope hold-down bars lays respectively at by a umbrella rope via.
2. the erecting device of flex-wing as claimed in claim 1, it is characterised in that described support platform includes base, front support
Bar and upper backup pad；It is connected by movable support rod between described base and upper backup pad；Have on described base and wind-tunnel base plate
The fixing hole connected；Upper backup pad has the bolt hole being connected with umbrella rope installing plate；Described movable support rod be divided into epimere with
Hypomere, is linked by spherical linkage between two sections；The upper end of front support rod is supported on the lower surface of described upper backup pad, lower end with
The mode of hinge joint is connected to the hypomere of described movable support rod.
3. the erecting device of flex-wing as claimed in claim 1, it is characterised in that the circumferential surface of described band umbrella rope hold-down bars has
For being wound around and fix the groove of umbrella rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610450230.7A CN106092497B (en) | 2016-06-21 | 2016-06-21 | A kind of mounting device of flex-wing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610450230.7A CN106092497B (en) | 2016-06-21 | 2016-06-21 | A kind of mounting device of flex-wing |
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| Publication Number | Publication Date |
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| CN106092497A true CN106092497A (en) | 2016-11-09 |
| CN106092497B CN106092497B (en) | 2018-10-02 |
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| CN201610450230.7A Active CN106092497B (en) | 2016-06-21 | 2016-06-21 | A kind of mounting device of flex-wing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441794A (en) * | 2016-11-28 | 2017-02-22 | 中国科学院力学研究所 | Six-component aerodynamic force measurement device of high-speed train model |
| CN112378620A (en) * | 2020-12-09 | 2021-02-19 | 中国航天空气动力技术研究院 | Flexible aircraft wind tunnel static aeroelasticity test model and manufacturing method |
| CN114180074A (en) * | 2021-12-23 | 2022-03-15 | 航宇救生装备有限公司 | Method for adjusting main parameter installation angle of ram parafoil |
| CN114486153A (en) * | 2021-10-28 | 2022-05-13 | 北京航天长征飞行器研究所 | Long-time high-temperature gas wind tunnel variable-attack-angle movement device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193322Y (en) * | 1994-04-15 | 1995-03-29 | 王嘉謇 | Novel inflatable parafoil |
| JPH0848300A (en) * | 1994-08-08 | 1996-02-20 | Mitsubishi Heavy Ind Ltd | Parachute tester |
| JPH09301291A (en) * | 1996-05-20 | 1997-11-25 | Nissan Motor Co Ltd | Wind channel experimental device for parachute |
| US6481106B1 (en) * | 2001-01-03 | 2002-11-19 | Fiskars Consumer Oy Ab | Scissor action tool |
| CN102178378A (en) * | 2011-06-08 | 2011-09-14 | 广东高空风能技术有限公司 | Anti-intertwining pull rope umbrella |
| CN104634535A (en) * | 2015-01-20 | 2015-05-20 | 南京航空航天大学 | Measuring device and measuring method for airflow parameters of telescopic airfoil parachute |
| CN105109681A (en) * | 2015-09-16 | 2015-12-02 | 航宇救生装备有限公司 | Unmanned power parafoil with adjustable mounting angle |
| CN105222979A (en) * | 2015-10-13 | 2016-01-06 | 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 device for the protection of parachute performance supersonic wind tunnel test parachute body |
| CN105387771A (en) * | 2015-11-26 | 2016-03-09 | 中国航空工业集团公司沈阳飞机设计研究所 | Hiding structure for drone aircraft parachute lanyards |
-
2016
- 2016-06-21 CN CN201610450230.7A patent/CN106092497B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193322Y (en) * | 1994-04-15 | 1995-03-29 | 王嘉謇 | Novel inflatable parafoil |
| JPH0848300A (en) * | 1994-08-08 | 1996-02-20 | Mitsubishi Heavy Ind Ltd | Parachute tester |
| JPH09301291A (en) * | 1996-05-20 | 1997-11-25 | Nissan Motor Co Ltd | Wind channel experimental device for parachute |
| US6481106B1 (en) * | 2001-01-03 | 2002-11-19 | Fiskars Consumer Oy Ab | Scissor action tool |
| CN102178378A (en) * | 2011-06-08 | 2011-09-14 | 广东高空风能技术有限公司 | Anti-intertwining pull rope umbrella |
| CN104634535A (en) * | 2015-01-20 | 2015-05-20 | 南京航空航天大学 | Measuring device and measuring method for airflow parameters of telescopic airfoil parachute |
| CN105109681A (en) * | 2015-09-16 | 2015-12-02 | 航宇救生装备有限公司 | Unmanned power parafoil with adjustable mounting angle |
| CN105222979A (en) * | 2015-10-13 | 2016-01-06 | 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 device for the protection of parachute performance supersonic wind tunnel test parachute body |
| CN105387771A (en) * | 2015-11-26 | 2016-03-09 | 中国航空工业集团公司沈阳飞机设计研究所 | Hiding structure for drone aircraft parachute lanyards |
Non-Patent Citations (2)
| Title |
|---|
| 贺卫亮: "利用风洞试验研究冲压翼伞的升阻特性", 《航空学报》 * |
| 贺建平: "风筝发电机翼伞姿态控制方法的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441794A (en) * | 2016-11-28 | 2017-02-22 | 中国科学院力学研究所 | Six-component aerodynamic force measurement device of high-speed train model |
| CN112378620A (en) * | 2020-12-09 | 2021-02-19 | 中国航天空气动力技术研究院 | Flexible aircraft wind tunnel static aeroelasticity test model and manufacturing method |
| CN114486153A (en) * | 2021-10-28 | 2022-05-13 | 北京航天长征飞行器研究所 | Long-time high-temperature gas wind tunnel variable-attack-angle movement device |
| CN114486153B (en) * | 2021-10-28 | 2024-05-14 | 北京航天长征飞行器研究所 | Long-time high-temperature gas wind tunnel variable attack angle movement device |
| CN114180074A (en) * | 2021-12-23 | 2022-03-15 | 航宇救生装备有限公司 | Method for adjusting main parameter installation angle of ram parafoil |
| CN114180074B (en) * | 2021-12-23 | 2023-10-20 | 航宇救生装备有限公司 | Method for adjusting main parameter installation angle of punching parafoil |
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