CN107036781A - Low resistance Three Degree Of Freedom support meanss based on virtual flight test model - Google Patents
Low resistance Three Degree Of Freedom support meanss based on virtual flight test model Download PDFInfo
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- CN107036781A CN107036781A CN201710425609.7A CN201710425609A CN107036781A CN 107036781 A CN107036781 A CN 107036781A CN 201710425609 A CN201710425609 A CN 201710425609A CN 107036781 A CN107036781 A CN 107036781A
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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
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The present invention relates to a kind of low resistance Three Degree Of Freedom support meanss based on virtual flight test model, the support meanss can make model realization pitching, rolling, the free coupling rotational in three directions of going off course by being connected firmly with virtual flight test model.In addition, lock two-by-two can be with the motor function of implementation model single-degree-of-freedom for Three Degree Of Freedom.The device is main by free rolling movement pair, the secondary and free yawing rotation pair of free elevating movement.Coupled between each kinematic pair by bearing assembly, implementation model attitude angle freely turns.The present invention has the advantages that kinetic damping is small, small, range of movement is adjustable, lightweight, convenient operating maintenance to Flow Field in Wind Tunnel interference.
Description
Technical field
The present invention relates to a kind of low resistance Three Degree Of Freedom support meanss based on virtual flight test model.
Background technology
Wind-tunnel virtual flight experimental technique is a kind of advanced wind tunnel test and the assessment technology of last century Mo U.S.'s proposition,
The technology provides a kind of method for being estimated and verifying to Design of Flight Control in wind-tunnel so that Control System Design
Gentle dynamic analysis is carried out parallel, and the problem of control system is present is found initial stage in research, so as to substantially reduce flight test
Risk, shorten the R＆D cycle.The technology can safely and effectively assess unsteady aerodynamic force to aircraft flight quality and flight
The influence of control system, the bridge being known as between wind tunnel test and flight test.
Virtual flight test requirements document model, by the action of control surface, produces aerodynamic force, control under angle free state
Model attitude is moved as requested, and the purpose of experiment is to set up a kind of research meanses of pneumatic/motion/control integration,
Pilot system can carry out the identification of model aerodynamic parameter, the checking of Flight Control Law and the checking of various motion of automobile forms
Deng.
The experiment of wind-tunnel virtual flight be unable to do without support system, and support system is the basis of guarantee test credible result degree and closed
Key.Experiment needs dummy vehicle being arranged on the Special supporting device with rotary freedom with the free pitching of realization, partially
Boat, rolling, simulated flight device motion of automobile process more true to nature is so as to realize virtual " flight ".
Traditional model in wind tunnel support meanss generally use serial mechanism, and the quantity of its mechanism freedom depends on phase
The quantity of shifting axle and rotary shaft is answered, its weight is big, range of movement regulation is difficult, and damping is big.
The content of the invention
Based on above weak point, the present invention provides a kind of low resistance Three Degree Of Freedom branch based on virtual flight test model
Support arrangement, makes virtual flight test model realize pitching, rolling, the free coupling rotational in three directions of going off course, so as to ensure void
Intend flight wind tunnel test data precision.
The present invention technical solution be：A kind of low resistance Three Degree Of Freedom support dress based on virtual flight test model
Put, including by free rolling movement pair, the secondary and free yawing rotation pair of free elevating movement, free rolling movement pair passes through a pair
The rolling deep groove ball bearing both upper ends thereof axial direction secondary with free elevating movement couples, and this is to the symmetrical cloth of rolling deep groove ball bearing
Put in the secondary two ends of free elevating movement, be provided with the secondary two ends of free rolling movement with the rolling bearing (ball) cover of axle one and
Rolling bearing adjust pad, adopts and is screwed, it is ensured that the normal rotation of model rolling deep groove ball bearing in free rolling movement
Turn；The secondary radial direction of free elevating movement is connect by a pair of pitching deep groove ball bearings with free yawing rotation duplicate invoice, and this is to pitching
Deep groove ball bearing is arranged symmetrically in the secondary upper recess of free yawing rotation, and the secondary two ends of free elevating movement are provided with and axle one
Pitch bearing end cap and pitch bearing adjust pad, adopt and be screwed, it is ensured that model pitching in free elevating movement
The normal rotation of deep groove ball bearing；The axial direction of the secondary lower end of free yawing rotation is equipped with a pair of driftage deep groove ball bearings, and two driftages are deep
It is furnished with axle sleeve between ditch ball bearing, outside is cased with yawing rotation bearing mounting base, in the secondary bottom of free yawing rotation with having
The lock nut contact of groove, lock nut upper end ring is fixed equipped with adjustment packing ring, bottom using screw lock, and outside is cased with
Yawing rotation bearing (ball) cover, the top ring of yawing rotation bearing (ball) cover is coupled using screw with yawing rotation bearing mounting base,
Lower end couples as straight mouth with driftage pole.
The present invention also has following technical characteristic：
1st, four secondary Ge Nei corners of described free rolling movement have been arranged symmetrically the rolling of four regulation roll angles
Stop screw, can require to adjust or limit the maximum angle of rolling movement according to actual tests.
2nd, the secondary axle sleeve lower end radial symmetric of described free elevating movement arranges the pitching of two adjusting pitch angles
Stop screw, can require to adjust or limit the maximum angle of elevating movement according to actual tests.
3rd, gap is left between the lock nut connect with free yawing rotation duplicate invoice, and outside yawing rotation bearing (ball) cover,
Lock nut radially has two symmetrical boss simultaneously.
4th, described regulation yawing rotation bearing (ball) cover is circumferentially disposed three driftage stop screws, by adjusting this three
Driftage stop screw, that is, the maximum angle of regulation or limitation yawing rotation required for reaching.
The present invention has critically important realistic meaning for virtual flight wind tunnel test, is the pass of virtual flight wind tunnel test
Key and basis, its application prospect are very wide.Due to use above-mentioned design, can make test model realize pitching, rolling, partially
Navigate the free coupling rotational in three directions, while can lock two-by-two both can be with the motion work(of implementation model single-degree-of-freedom for Three Degree Of Freedom
Can, it is spacing to facilitate model installation and debugging that low-angle can be carried out again.The high accuracy that is free to rotate through of all directions combines wobble shaft
Hold realization, it is ensured that it has relatively low kinetic damping.The device is smaller on the flow field smoothness influence in wind-tunnel simultaneously, meets branch
Intensity requirement is supportted, has the advantages that range of movement is adjustable, lightweight, convenient operating maintenance.
Brief description of the drawings
Fig. 1 is the superstructure main view profile of apparatus of the present invention；
Fig. 2 is the substructure side cutaway view of apparatus of the present invention；
Wherein, 1, free rolling movement pair, 2, free elevating movement pair, 3, free yawing rotation pair, 4, screw, 5, rolling
Bearing (ball) cover, 6, rolling bearing adjust pad, 7, rolling deep groove ball bearing, 8, pitching stop screw, 9, pitch bearing end cap,
10th, pitch bearing adjust pad, 11, pitching deep groove ball bearing, 12, driftage deep groove ball bearing, 13, yawing rotation bearing installs
Seat, 14, axle sleeve, 15, adjustment packing ring, 16, lock nut, 17, yawing rotation bearing (ball) cover, 18 be driftage pole.
Embodiment
Following specific implementation examples are included with reference to Figure of description, technical scheme is described further.
Embodiment 1
As shown in Figure 1-2, a kind of low resistance Three Degree Of Freedom support meanss based on virtual flight test model, including by certainly
By rolling movement pair 1, free elevating movement pair 2 and free yawing rotation pair 3, reserve and fly with virtual in free rolling movement pair 3
The installation screw of row test model main body connection, free rolling movement pair 1 passes through a pair of rolling deep groove ball bearings 7 and free pitching
The both upper ends thereof axial direction connection of kinematic pair 2, it is secondary 2 liang that this is arranged symmetrically in free elevating movement to rolling deep groove ball bearing 7
In end, the rolling bearing (ball) cover 5 and rolling bearing adjust pad 6 with axle one are provided with secondary 1 two ends of free rolling movement,
Adopt and be screwed, it is ensured that the normal rotation of model rolling deep groove ball bearing 7 in free rolling movement；Free elevating movement pair
2 radial directions are coupled by a pair of pitching deep groove ball bearings 11 and free yawing rotation pair 3, and this is to 11 pairs of pitching deep groove ball bearing
Title is arranged in secondary 3 upper recess of free yawing rotation, and secondary 2 two ends of free elevating movement are provided with the pitch bearing with axle one
End cap 9 and pitch bearing adjust pad 10, adopt and are screwed, it is ensured that model pitching deep-groove ball axle in free elevating movement
Hold 11 normal rotation；The axial direction of secondary 3 lower ends of free yawing rotation is equipped with a pair of driftage deep groove ball bearings 12, two driftage deep-groove balls
It is furnished with axle sleeve 14 between bearing 12, outside is cased with yawing rotation bearing mounting base 13, in the bottom of free yawing rotation pair 3 and tool
Reeded lock nut 16 is contacted, and lock nut upper end ring is equipped with adjustment packing ring 15, and bottom is fixed using screw lock, outside
Portion is cased with yawing rotation bearing (ball) cover 17, and the top ring of yawing rotation bearing (ball) cover 17 is pacified using screw with yawing rotation bearing
Dress seat 13 couples, and lower end couples as straight mouth with driftage pole 18.Four Ge Nei corners pair of described free rolling movement pair 1
Claim the rolling stop screw for arranging four regulation roll angles.The axle sleeve lower end of described free elevating movement pair 2 is radially right
Claim the pitching stop screw 8 for arranging two adjusting pitch angles.The lock nut 16 coupled with free yawing rotation pair 3, and
Gap is left between outside yawing rotation bearing (ball) cover 17, while the radial direction of lock nut 16 has two symmetrical boss.
Free rolling movement pair couples with virtual flight test model main body, by a pair of high-precision deep groove ball bearings and certainly
By the secondary axial direction connection of elevating movement, radial load and axial direction can be born simultaneously when model free rolling movement in wind-tunnel
Load, and these two pair deep groove ball bearing is arranged symmetrically, it is ensured that the normal rotation of model deep groove ball bearing in free rolling movement
Turn.Similarly, the secondary radial direction of free elevating movement passes through a pair of high-precision deep groove ball bearings and the secondary radial direction side of free yawing rotation
To connection, and these two pair deep groove ball bearing is arranged symmetrically, it is ensured that model in free elevating movement deep groove ball bearing it is normal
Rotation.Free yawing rotation is secondary to be coupled by one group of high-precision deep groove ball bearing with driftage pole in the axial direction, is realized freely
Yawing rotation.Model can bear radial load and axial load simultaneously in wind-tunnel during free rolling movement.It is virtual by control
Flight test model manipulation deflecting facet carrys out the motion of Controlling model, finally realizes the simulation of model in wind tunnel state of flight.
Four secondary Ge Nei corners of free rolling movement have been arranged symmetrically the rolling stop screw of four regulation roll angles,
Can according to actual needs adjusting screw position so as to limiting roll angle.Similarly the secondary axle sleeve lower end of free elevating movement is radially right
Claim to arrange the pitching stop screws of two adjusting pitch angles, can according to actual needs adjusting screw position so as to adjusting limitation
The angle of pitching.Gap is left between the lock nut connect with free yawing rotation duplicate invoice, and outside yawing rotation bearing (ball) cover,
Its radial direction has two symmetrical boss simultaneously.The three driftage spacing spiral shells circumferentially disposed by adjusting yawing rotation bearing (ball) cover 17
Nail, you can the maximum angle of regulation required for reaching or limitation yawing rotation.
The Three Degree Of Freedom support meanss of the present embodiment have been successfully applied in certain aircraft virtual flight wind tunnel test.The present apparatus
There is low resistance, disturb small, range of movement adjustable Flow Field in Wind Tunnel, be applied in virtual flight wind tunnel test and move spirit
It is living, installation, convenient disassembly.
Claims (5)
1. a kind of low resistance Three Degree Of Freedom support meanss based on virtual flight test model, including by free rolling movement pair
(1), free elevating movement secondary (2) and free yawing rotation are secondary (3), it is characterised in that：Free rolling movement secondary (1) passes through a pair
Rolling deep groove ball bearing (7) couples with the both upper ends thereof axial direction of free elevating movement secondary (2), and this is to rolling deep groove ball bearing
(7) it is arranged symmetrically in secondary (2) two ends of free elevating movement, is provided with and axle one at secondary (1) two ends of free rolling movement
Rolling bearing (ball) cover (5) and rolling bearing adjust pad (6), adopt and are screwed, it is ensured that model is in free rolling movement
The normal rotation of rolling deep groove ball bearing (7)；Secondary (2) radial direction of free elevating movement passes through a pair of pitching deep groove ball bearings
(11) couple with free yawing rotation secondary (3), it is secondary (3) that this is arranged symmetrically in free yawing rotation to pitching deep groove ball bearing (11)
In upper recess, secondary (2) two ends of free elevating movement are provided with adjusting with the pitch bearing end cap (9) and pitch bearing of axle one
Whole pad (10), adopts and is screwed, it is ensured that the normal rotation of model pitching deep groove ball bearing (11) in free elevating movement；
The axial direction of secondary (3) lower end of free yawing rotation equipped with a pair of driftage deep groove ball bearings (12), two driftage deep groove ball bearings (12) it
Between be furnished with axle sleeve (14), outside is cased with yawing rotation bearing mounting base (13), in the bottom of free yawing rotation secondary (3) with having
Lock nut (16) contact of groove, lock nut upper end ring is equipped with adjustment packing ring (15), and bottom is fixed using screw lock,
Outside is cased with yawing rotation bearing (ball) cover (17), and the top ring of yawing rotation bearing (ball) cover (17) uses screw and yawing rotation
Bearing mounting base (13) couples, and lower end couples as straight mouth with driftage pole (18).
2. a kind of low resistance Three Degree Of Freedom support meanss based on virtual flight test model according to claim 1, its
It is characterised by：Four Ge Nei corners of described free rolling movement secondary (1) have been arranged symmetrically the rolling of four regulation roll angles
Turn stop screw.
3. a kind of low resistance Three Degree Of Freedom support meanss based on virtual flight test model according to claim 1, its
It is characterised by：The axle sleeve lower end radial symmetric of described free elevating movement secondary (2) arranges bowing for two adjusting pitch angles
Face upward stop screw (8).
4. a kind of low resistance Three Degree Of Freedom support meanss based on virtual flight test model according to claim 1, its
It is characterised by：Between the lock nut (16) coupled with free yawing rotation secondary (3), and outside yawing rotation bearing (ball) cover (17)
Gap is left, while lock nut (16) radially has two symmetrical boss.
5. a kind of low resistance Three Degree Of Freedom support meanss based on virtual flight test model according to claim 1, its
It is characterised by：Described regulation yawing rotation bearing (ball) cover (17) is circumferentially disposed three driftage stop screws, should by regulation
Three driftage stop screws, that is, the maximum angle of regulation or limitation yawing rotation required for reaching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710425609.7A CN107036781B (en) | 2017-06-08 | 2017-06-08 | Low-damping three-degree-of-freedom supporting device based on virtual flight test model |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710425609.7A CN107036781B (en) | 2017-06-08 | 2017-06-08 | Low-damping three-degree-of-freedom supporting device based on virtual flight test model |
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| CN107036781A true CN107036781A (en) | 2017-08-11 |
| CN107036781B CN107036781B (en) | 2023-04-25 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629805A (en) * | 2021-01-07 | 2021-04-09 | 中国空气动力研究与发展中心超高速空气动力研究所 | Low-damping pitching dynamic supporting device for wind tunnel free oscillation test |
| CN114486168A (en) * | 2022-04-19 | 2022-05-13 | 中国空气动力研究与发展中心低速空气动力研究所 | Three-degree-of-freedom model flight test angle limiting device |
| CN114608794A (en) * | 2022-05-11 | 2022-06-10 | 中国航空工业集团公司哈尔滨空气动力研究所 | Method for measuring aerodynamic coefficient of model wind tunnel virtual flight test |
| CN115371937A (en) * | 2022-07-18 | 2022-11-22 | 中国航空工业集团公司哈尔滨空气动力研究所 | Tail boom model roll angle adjusting mechanism |
| CN115420459A (en) * | 2022-08-17 | 2022-12-02 | 中国航天空气动力技术研究院 | Aircraft model multi-degree-of-freedom supporting mechanism for wind tunnel test |
| CN115585978A (en) * | 2022-12-09 | 2023-01-10 | 中国航空工业集团公司沈阳空气动力研究所 | Test device for two-degree-of-freedom motion of transonic wind tunnel |
| CN116046330A (en) * | 2023-03-30 | 2023-05-02 | 中国航空工业集团公司哈尔滨空气动力研究所 | Three-degree-of-freedom virtual flight test device capable of ventilating |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629805A (en) * | 2021-01-07 | 2021-04-09 | 中国空气动力研究与发展中心超高速空气动力研究所 | Low-damping pitching dynamic supporting device for wind tunnel free oscillation test |
| CN112629805B (en) * | 2021-01-07 | 2022-08-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Low-damping pitching dynamic supporting device for wind tunnel free oscillation test |
| CN114486168A (en) * | 2022-04-19 | 2022-05-13 | 中国空气动力研究与发展中心低速空气动力研究所 | Three-degree-of-freedom model flight test angle limiting device |
| CN114486168B (en) * | 2022-04-19 | 2022-06-17 | 中国空气动力研究与发展中心低速空气动力研究所 | Three-degree-of-freedom model flight test angle limiting device |
| CN114608794A (en) * | 2022-05-11 | 2022-06-10 | 中国航空工业集团公司哈尔滨空气动力研究所 | Method for measuring aerodynamic coefficient of model wind tunnel virtual flight test |
| CN114608794B (en) * | 2022-05-11 | 2022-07-19 | 中国航空工业集团公司哈尔滨空气动力研究所 | Method for measuring aerodynamic coefficient of model wind tunnel virtual flight test |
| CN115371937A (en) * | 2022-07-18 | 2022-11-22 | 中国航空工业集团公司哈尔滨空气动力研究所 | Tail boom model roll angle adjusting mechanism |
| CN115420459A (en) * | 2022-08-17 | 2022-12-02 | 中国航天空气动力技术研究院 | Aircraft model multi-degree-of-freedom supporting mechanism for wind tunnel test |
| CN115585978A (en) * | 2022-12-09 | 2023-01-10 | 中国航空工业集团公司沈阳空气动力研究所 | Test device for two-degree-of-freedom motion of transonic wind tunnel |
| CN115585978B (en) * | 2022-12-09 | 2023-03-14 | 中国航空工业集团公司沈阳空气动力研究所 | Test device for two-degree-of-freedom motion of transonic wind tunnel |
| CN116046330A (en) * | 2023-03-30 | 2023-05-02 | 中国航空工业集团公司哈尔滨空气动力研究所 | Three-degree-of-freedom virtual flight test device capable of ventilating |
| CN116046330B (en) * | 2023-03-30 | 2023-06-16 | 中国航空工业集团公司哈尔滨空气动力研究所 | Three-degree-of-freedom virtual flight test device capable of ventilating |
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|---|---|
| CN107036781B (en) | 2023-04-25 |
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