CN106092497B - A kind of mounting device of flex-wing - Google Patents
A kind of mounting device of flex-wing Download PDFInfo
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- CN106092497B CN106092497B CN201610450230.7A CN201610450230A CN106092497B CN 106092497 B CN106092497 B CN 106092497B CN 201610450230 A CN201610450230 A CN 201610450230A CN 106092497 B CN106092497 B CN 106092497B
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- umbrella rope
- wing
- mounting plate
- flex
- umbrella
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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
A kind of mounting device of flex-wing, including umbrella rope mounting plate and support platform.Umbrella rope mounting plate is fixed on the upper backup pad of support platform.The center of umbrella rope mounting plate length direction is bonding pad.It is evenly equipped with multiple umbrella rope vias in the both sides of bonding pad.Several band umbrella rope hold-down bars for respectively protruding the surface are distributed in umbrella rope mounting plate lower surface；Each umbrella rope hold-down bars is located at by a umbrella rope via.The present invention can easily carry out the flex-wing for carrying out wind tunnel test fixed installation and measurement established angle, angle of attack adjusting, in conjunction with corresponding measuring instrument equipment, the established angle and the angle of attack for obtaining flex-wing under experimental test state, and the corresponding aerodynamic force situation such as established angle and lift, resistance, torque under the angle of attack can clearly be measured；Scale model as big as possible can be used to be tested using the device simultaneously.
Description
Technical field
The present invention relates to wind tunnel test field, specifically a kind of mounting device for flex-wing aerodynamics force measurement.
Background technology
Wing is the main component for making aircraft have lift, how accurately to predict its aerodynamic force, is that aircraft is set
The top priority of meter, current most of aircraft are all the rigid wings used, most domestic wind-tunnel, mainly also both for
Rigid wing carries out aerodynamic force test, and corresponding mating rigid wings aerodynamics force measurement mounting platform is all very complete, technological means
Also very complete.
It is corresponding with rigid wing, also a kind of flex-wing, i.e. this kind of aerofoil be made of using flexible material, meanwhile,
Rigidity using a certain number of umbrella ropes to maintain and ensure its shape in flight course and be filled.The flexibility of the present invention
The wing generally refers to be widely used in airborne air-drop, the flexible parafoil in the fields such as air transport, agricultural are sowed.The flexibility
The wing is made of the sewing of airtight textile material, is had the characteristics that light weight, is convenient for carrying and uses.In wind tunnel test, one
As using umbrella rope connection measuring device be fixed.But due to its structurally flexible, so as to cause its on wind tunnel test platform it is difficult
It is fixed with installing, and test process wing centre section face is easily involved deformation by external force, if that mode is not suitably fixedly mounted, is easy
It generates and swings or offset, to cause test mode that can not fix and aerodynamic force is difficult to obtain or obtain result inaccuracy etc. and ask
Topic.In addition, to measure multiple state values, system also needs that change can be adjusted to flexible wing incidence；To be surveyed in same wind-tunnel
More large-sized model is measured, mating umbrella rope should also be blocked.
It is domestic at present that the also less of Research on measuring technique is installed specifically for flex-wing wind tunnel test, only Sichuan in recent years
Zhan Pei states of university 2004 are in 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 wind tunnel test is carried out in 29 base 8m × 6m wind-tunnel of Mianyang, mounting device master
If the original measuring device of the wind-tunnel is utilized, and it is improved on its basis, constitutes a non-parallel quadrangle machine
Structure, by being demarcated before experiment, so that it may by the method for the conventional control angle of attack, to realize soft airfoil parachute fixed frame nominal angle of attack
Change, thus achievees the purpose that change the soft airfoil parachute angle of attack, but the device is improved by special flow tunnel testing device, is not had
Universality, and do not have and change flexible wing umbrella established angle function；Aerospace Life-Support Industries Co., Ltd. Lu Zhang trees etc. were in 2013
The paper delivered on six four air force observation and control technology exchanging meetings of Chinese observing and controlling Professional Committee of air force association《Certain type
Model parafoil aerodynamic characteristics tests technical research》The Special test fixture design used its flexibility parafoil experimental test carries out
It introduces, supporting mechanism is made of a umbrella rope mounting platform, convolution platform, supporting mechanism, external balance and deflector etc., the wing
Umbrella model is placed in by supporting mechanism in wind-tunnel, and the convolution platform on supporting mechanism, which encloses, to rotate around the axis to adjust the angle of attack, but
The device can not block umbrella rope, also do not have and change flexible wing umbrella established angle function, and sleeve mechanism is located at wind-tunnel
Within, it is affected to test result.
Invention content
For overcome it is existing in the prior art be also easy to produce swing or offset, to influence measuring accuracy, and cannot change
The deficiency of flexible wing umbrella established angle, the present invention propose a kind of mounting device of flex-wing.
The aerofoil of the flex-wing extends shape when transforming into its use to the umbrella rope with tangential distribution by many.Umbrella rope
Exhibition along flexible aerofoil is distributed to central symmetry.Described open up is distributed in collect collection respectively to the umbrella rope of center both sides and become two beams,
And form two umbrella rope joints.Described open up to the distance between center both sides umbrella rope umbrella rope joint is D.It is characterized in that：
The mounting device of the flex-wing includes umbrella rope mounting plate and support platform.The umbrella rope mounting plate is fixed on support
On the upper backup pad of platform.The center of the umbrella rope mounting plate length direction is bonding pad.The bonding pad is in umbrella rope mounting plate
The width L=D of length direction.It is evenly equipped with multiple umbrella rope vias in the both sides of the bonding pad.The aperture of the umbrella rope via is
5mm；The hole heart of each adjacent umbrella rope via is away from for 20mm.It is distributed in the umbrella rope mounting plate lower surface and several respectively protrudes the surface
Band umbrella rope hold-down bars；Each umbrella rope hold-down bars is located at by a umbrella rope via.
The support platform includes pedestal, front support rod and upper backup pad.Pass through work between the pedestal and upper backup pad
Dynamic supporting rod connection.There is the mounting hole being connect with wind-tunnel bottom plate on the pedestal；Have on upper backup pad and connects with umbrella rope mounting plate
The bolt hole connect.The movable support rod is divided into epimere and hypomere, is linked by spherical linkage between two sections.Front support rod it is upper
End is supported on the lower surface of the upper backup pad, and lower end is connected to the hypomere of the movable support rod in a manner of linking.
The circumferential surface with umbrella rope hold-down bars is fluted, for winding and fixing umbrella rope.
It is more and more extensive with the use of flex-wing, the acquisition analysis of its aeroperformance is also become increasingly to be important.
For convenience of the flex-wing aerodynamic force obtained under different established angles, state of angle of attack is accurately measured, also just need it is a kind of can will be flexible
Its gas under its established angle and the angle of attack and corresponding state can easily be fixed, adjust and be measured to wing reasonable installation in wind-tunnel
The measurement mounting device of power.And wind tunnel test generally uses scale model test, to make survey due to being influenced by wind-tunnel size
Amount result more meets reality, and the model that should enable to measure is the bigger the better.
The present invention provides a kind of new mounting device for the experiment of flex-wing wind-tunnel aerodynamics force measurement, uses the device energy side
Just the flex-wing to wind tunnel test to be carried out carries out fixed installation and measurement established angle, angle of attack adjusting.It is measured in conjunction with corresponding
Instrument and equipment can clearly measure the established angle and the angle of attack for obtaining flex-wing under experimental test state, and corresponding installation
The aerodynamic force situations such as lift, resistance, torque under angle and the angle of attack；Scale model as big as possible can be used using the device simultaneously
It is tested.
In the present invention, for the flexible wing model bigger for enabling wind-tunnel to test, and it is fixed under single test mode
Flex-wing is turned into state when its use with umbrella rope, is then parallel to flexible wing with one by established angle and state of angle of attack first
String and perpendicular to the matched umbrella rope of the tablet of its plumb line (α=0).Umbrella rope length degree after matched should be kept according to wind-tunnel situation
Flexible aerofoil is in test section center.Uniformly distributed multiple equidistant umbrella rope vias on umbrella rope mounting plate, and it is flat by being located at
Umbrella rope length degree is fixed in umbrella rope hold-down bars below plate, and the matched rear remaining length of every umbrella rope is passed through umbrella rope hold-down bars
It is fastened in flat plate bottom.
If flexible aerofoil is improper the location of in wind tunnel test, or when need to adjust flex-wing established angle, directly profit
Length adjustment is carried out with original umbrella rope being fastened, without blocking length or the mating more set umbrella ropes of established angle to multiple.
In the experiment of flex-wing aerodynamics force measurement, the acquisition and adjustment of the angle of attack are general also relatively difficult to achieve.Fixation for convenience, tune
The angle of attack of whole flex-wing, above-mentioned tablet is mounted on one can be in the support platform of front and back free pitching.Pass through support
Platform drives umbrella rope cutoff plate to carry out pitch rotation.In this way, need to only adjust the pitch angle of the bar, so that it may which corresponding adjustment is flexible
The pitch angle of the wing.Flexible wing incidence can measure the tablet angle of attack and directly give by demarcating flexible aerofoil and tablet angle of attack relationship.
The present invention can easily carry out the flex-wing for carrying out wind tunnel test installation and fix and measure established angle, angle of attack tune
Section.In conjunction with corresponding measuring instrument equipment, can clearly measure obtain established angle of the flex-wing under experimental test state and
The angle of attack, and the corresponding aerodynamic force situation such as established angle and lift, resistance, torque under the angle of attack；It can be used simultaneously using the device
Scale model as big as possible is tested.
The present invention can test same size wind-tunnel using flex-wing scale model as big as possible, and to examination
The flex-wing established angle and state of angle of attack tested are fixed；Since the present invention is continuous to umbrella rope section, (umbrella rope is blocked by being located at
Umbrella rope hold-down bars under plate is wound fixation), therefore length can be blocked to umbrella rope and carry out free adjustment, to facilitate adjustment flex-wing
Position and its established angle in wind-tunnel, without spare more set umbrella ropes；Pass through can freely carry out under wind-tunnel bottom plate
Pitch angle adjusts and fixed support platform, can easily adjust flexible wing incidence during the test；It is soft by demarcating
Property aerofoil and tablet angle of attack relationship, flexible wing incidence can directly give by measuring the tablet angle of attack without being carried out again to flex-wing
Complicated radiographic measurement.It is placed in the bottom of device using suitable dynamometry instrument and method, such as by six COMPONENT BALANCEs, to entirety
Device carries out stress measurement, then passes through the test datas conversion methods such as initial value calibration, geometrical analysis and coordinate transform, you can obtains
Flex-wing suffered aerodynamic force (lift, resistance and torque) situation at the test condition.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of umbrella rope mounting plate；
Fig. 3 is the sectional view of Fig. 2；
Fig. 4 is the cooperation schematic diagram of umbrella rope and umbrella rope mounting plate；
Fig. 5 is the structural schematic diagram of support platform；
Fig. 6 is the schematic diagram of flexible aerofoil umbrella rope；
Fig. 7 is the positive 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. mounting device；5. umbrella rope mounting plate；6. support platform；7.
Connect bolt；8. bolt hole；9. umbrella rope via；10. umbrella rope hold-down bars；11. upper backup pad；12. movable support rod；13. spherical
Hinge；14. pedestal；15. mounting hole；16. front support rod；17. axis pin.
Specific implementation mode
Fig. 5 is the integral installation relation schematic diagram of flexible aerofoil 1 and umbrella rope 2.Flexible aerofoil 1 is extended by many to chord
Shape when transforming into from its use to the umbrella rope of distribution.Umbrella rope is distributed along the exhibition of flexible aerofoil to central symmetry.It is distributed in the exhibition
Collect collection respectively to the umbrella rope of center both sides and become two beams, and forms two umbrella rope joints 3.It is described to open up to center both sides umbrella rope
The distance between umbrella rope joint 3 is D.
The present embodiment is a kind of mounting device of flex-wing, including umbrella rope mounting plate 5 and support platform 6.The umbrella rope peace
There is screw hole at the length direction center of loading board 5, which is passed through into the solid upper backup pad 11 in support platform 6 of bolt
On.It is bonding pad at umbrella rope mounting plate length direction center, bolt hole 8 is distributed in the bonding pad.The bonding pad exists
The width L=D of umbrella rope mounting plate length direction.It is evenly equipped with multiple umbrella rope vias 9 in the both sides of the bonding pad.
The aperture of the umbrella rope via 9 is 5mm；The hole heart of each adjacent umbrella rope via is away from for 20mm.It is installed in the umbrella rope
Several band umbrella rope hold-down bars 10 for respectively protruding the surface are distributed in 5 lower surface of plate；And each umbrella rope hold-down bars is made to be located at one
By umbrella rope via 9.The circumferential surface with umbrella rope hold-down bars 10 is fluted, for winding and fixing umbrella rope.
The support platform 6 includes pedestal 14, front support rod 16 and upper backup pad 11.The pedestal 14 and upper backup pad 11
Between connected by movable support rod 12.There is the mounting hole 15 being connect with wind-tunnel bottom plate on the pedestal；Have on upper backup pad
The bolt hole 8 being connect with umbrella rope mounting plate.The movable support rod is divided into epimere and hypomere, passes through spherical linkage 13 between two sections
Hinge joint.The upper end of front support rod 16 is supported on the lower surface of the upper backup pad, and lower end is connected to the work in a manner of linking
The hypomere of dynamic supporting rod.
When use：
As shown in Figure 7.Umbrella rope 2 is matched in the umbrella rope mounting plate upper surface of mounting device 4, with flex-wing when guarantee test
Face 1 is in the medium position of test chamber, simultaneously, additionally it is possible to play the role of fixing 1 angle of attack of flexible aerofoil when test.
The fixed point of each umbrella rope is marked by the length that must be located at umbrella rope mounting plate upper surface according to umbrella rope 2.By each umbrella
Rope 2 is placed through the umbrella rope via 9 on umbrella rope mounting plate 5.The fixed point of label is wrapped in the groove of umbrella rope hold-down bars 10
Place simultaneously fastens, that is, completes the matched of the length of umbrella rope and fix.
If flexible aerofoil established angle need to be adjusted, by adjusting umbrella rope is respectively arranged to rear from leading edge along the flexibility aerofoil is tangential
Length can be realized.Specifically, according to that need to adjust flexible aerofoil setting angle, the leading edge tangential from the flexibility aerofoil to rear will
Umbrella rope is received short or lengthens and keep the length of same row's umbrella rope consistent successively by row, you can changes flexible aerofoil established angle.
In the present embodiment, upper backup pad 11 carries out pitch rotation by spherical linkage 13 on movable support rod 12, when turning
Fixation is supported to front support rod 16 when testing the angle needed, that is, is passed through.Using the present embodiment, every time when experiment, without real
To umbrella rope carry out severing destruction, only need to umbrella rope pass through hole after, using the umbrella rope hold-down bars 10 under each hole to umbrella
Rope carries out length and fixes.
Claims (2)
1. a kind of mounting device of flex-wing, the aerofoil of flex-wing is extended by many to be transformed into it to the umbrella rope with tangential distribution and makes
The shape of used time；Umbrella rope is distributed along the exhibition of flexible aerofoil to central symmetry；Described open up is distributed in the umbrella rope of center both sides to distinguish
Collect collection and become two beams, and forms two umbrella rope joints；Described open up to the distance between center both sides umbrella rope joint is D；
It is characterized in that：
The mounting device of the flex-wing includes umbrella rope mounting plate and support platform；The umbrella rope mounting plate is fixed on support platform
Upper backup pad on；The center of the umbrella rope mounting plate length direction is bonding pad；The bonding pad is in umbrella rope mounting plate length
The width L=D in direction；It is evenly equipped with multiple umbrella rope vias in the both sides of the bonding pad；The aperture of the umbrella rope via is 5mm；
The hole heart of each adjacent umbrella rope via is away from for 20mm；Several bands for protruding the surface are distributed in the umbrella rope mounting plate lower surface
Umbrella rope hold-down bars；Each umbrella rope hold-down bars is located at by a umbrella rope via；
The support platform includes pedestal, front support rod and upper backup pad；It is propped up by activity between the pedestal and upper backup pad
Strut connects；There is the mounting hole being connect with wind-tunnel bottom plate on the pedestal；Have on upper backup pad and connect with umbrella rope mounting plate
Bolt hole；The movable support rod is divided into epimere and hypomere, is linked by spherical linkage between two sections；The upper end branch of front support rod
In the lower surface of the upper backup pad, lower end is connected to the hypomere of the movable support rod in a manner of linking for support.
2. the mounting device of flex-wing as described in claim 1, which is characterized in that the circumferential surface with umbrella rope hold-down bars has
Groove for winding and fixing 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 CN106092497A (en) | 2016-11-09 |
| CN106092497B true 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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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441794B (en) * | 2016-11-28 | 2019-01-04 | 中国科学院力学研究所 | A kind of six component aerodynamics force measurement device of high-speed rain movable model type |
| CN112378620B (en) * | 2020-12-09 | 2023-04-18 | 中国航天空气动力技术研究院 | Flexible aircraft wind tunnel static aeroelasticity test model and manufacturing method |
| 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 |
| 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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