CN105021370B - Low speed high Reynola number wind tunnel half model force balance and force measuring method - Google Patents
Low speed high Reynola number wind tunnel half model force balance and force measuring method Download PDFInfo
- Publication number
- CN105021370B CN105021370B CN201510457888.6A CN201510457888A CN105021370B CN 105021370 B CN105021370 B CN 105021370B CN 201510457888 A CN201510457888 A CN 201510457888A CN 105021370 B CN105021370 B CN 105021370B
- Authority
- CN
- China
- Prior art keywords
- balance body
- bar
- half model
- low speed
- force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of low speed high Reynola number wind tunnel half model force balance and force measuring method.Low speed turbocharged wind tunnel half-modcl test technology, it is an important means of high Reynola number wind tunnel experiment.A kind of low speed high Reynola number wind tunnel half model force balance, its composition include：Upper balance body（4）, lower balance body（13）, lift disappears and disturbs bar（10）, side force disappears and disturbs bar（1）, resistance disappears and disturbs bar（5）, lower balance body is arranged on varied angle system by screw（18）On; lift, which disappears, disturbs bar one end on upper balance body; the other end is connected with lower balance body again after being connected with lift transducer; side force, which disappears, disturbs bar one end on upper balance body; the other end is connected with lower balance body again after being connected with load cells; resistance, which disappears, disturbs bar one end on upper balance body, and the other end is connected with lower balance body again after being connected with resistive force sensor, has cell overload protector between upper balance body and lower balance body（8）.The present invention is applied to low speed high Reynola number wind tunnel half model dynamometry.
Description
Technical field：
The present invention relates to a kind of low speed high Reynola number wind tunnel half model force balance and force measuring method, wind is mainly employed
Dynamometry mode measures the force balance of wind-tunnel half model aerodynamic force outside hole.
Background technology：
With the continuous development of Chinese large-sized Aircraft Project, obtain really and accurately Wind Tunnel Data and aircraft development is risen
Decisive role, high Reynola number wind tunnel experiment is particularly important.With building up for China's low speed turbocharged wind tunnel, state has been filled up
The blank in interior low speed high reynolds number experiment field, carry following military secret in China, civil aircraft research and the improved height of service aircraft
Reynolds number low-speed wind tunnel test task.Low speed turbocharged wind tunnel half-modcl test technology, it is that one of high Reynola number wind tunnel experiment is important
Means, usual aircraft have a longitudinally asymmetric face, when air flow is symmetrical（Aircraft travels longitudinally）, you can pass through
Half model test carrys out the aerodynamic characteristic of exploratory flight device.Longitudinal direction is carried out in order to meet Large Scale Space Vehicle model under low speed pressurized environment
The test requirements document of aerodynamic characteristic and the needs of related wind-tunnel application technical research, low speed high reynolds number is developed in low speed turbocharged wind tunnel
Wind-tunnel half model force balance is significant.
The content of the invention：
It is an object of the invention to provide a kind of low speed high Reynola number wind tunnel half model force balance and force measuring method.
Above-mentioned purpose is realized by following technical scheme：
A kind of low speed high Reynola number wind tunnel half model force balance, its composition include：Upper balance body, lower balance body, lift
Disappear disturb bar, side force disappear disturb bar, resistance disappears and disturbs bar, resistive force sensor, lift transducer, load cells, described lower balance body
It is arranged on by screw in varied angle system, described lift, which disappears, disturbs bar one end on upper balance body, and described lift disappears
Disturb and be connected again with lower balance body after the bar other end is connected with lift transducer, described side force, which disappears, disturbs bar one end and be arranged on upper balance
On body, described side force disappears to disturb to be connected with lower balance body again after the bar other end is connected with load cells, and described resistance, which disappears, disturbs
Bar one end is arranged on upper balance body, and described resistance disappears to disturb to be connected with lower balance body again after the bar other end is connected with resistive force sensor
Connect, protective cover is buckled with described upper balance body, described upper balance body promotes connection with lower balance body by locking, described
Pole base is provided with by bolt on upper balance body, between described upper balance body and lower balance body there is cell overload to protect
Device is protected, there is floor on described lower balance body.
Described low speed high Reynola number wind tunnel half model force balance, described resistive force sensor one end are arranged on lower balance
On body, the described resistive force sensor other end is disappeared by axle sleeve with resistance disturbs one end of bar and is connected and is locked with lock nut, institute
The lift transducer one end stated is arranged on lower balance body, and the described lift transducer other end is disappeared by axle sleeve and lift disturbs bar
One end connect and locked with lock nut, described load cells one end be arranged on lower balance body on, described side force pass
The sensor other end is disappeared by axle sleeve with lift disturbs one end of bar and is connected and is locked with lock nut.
The force measuring method of described low speed high Reynola number wind tunnel half model force balance, carry out low speed high Reynola number wind tunnel half
During model dynamometer check, model is arranged on wind-tunnel half model pole upper end, and the wind-tunnel half model pole other end is arranged on wind-tunnel half
On model pole base, the aerodynamic lift and resistance of model are decomposed and measured by high-precision sensor, and bar is disturbed by disappearing
Effect, make them in the presence of aerodynamic load, to the Load Sensitive of each sensor component to be measured, produce relatively quick
The deformation of sense, and it is insensitive to the load of other components, as far as possible small deformation is not produced or produced, is realized in structure to power and power
The machine decomposition or part of square decompose, and low speed high Reynola number wind tunnel half model force balance can realize the maximum aerodynamic drag of measurement
10000N, maximum aerodynamic lift 40000N, maximum pitching moment 8000N.m, pass through low speed high Reynola number wind tunnel half model dynamometry
The motion of balance varied angle system, the change in angle of attack of -10 ° ~ 40 ° of wind-tunnel half model can be achieved.
Beneficial effects of the present invention：
1. low speed high Reynola number wind tunnel half model force balance of the present invention, is installed in model varied angle system, lead to
Rotating disk of overdriving is synchronized with the movement with driven turntable to realize being synchronized with the movement for half module model and model cushion block, so as to realize wind-tunnel half
The change in angle of attack of -10 ° of model ~ 40 °, realize the high-acruracy survey to static and dynamic wind-tunnel half model aerodynamic force.Sensitivity misses
Difference is 0.5%, linearity error 0.018%, breaking load coefficient 3.0.The synthesis loading accuracy of balance is higher than 0.1%（Roll
Member is higher than 0.2%）, comprehensive loading accuracy is higher than 0.3%（Roll member and be higher than 0.4%）, balance calibration precision index reaches national military standard
Advanced level.
When the present invention carries out low speed high Reynola number wind tunnel half model dynamometer check, model is arranged on wind-tunnel half model pole
End, the wind-tunnel half model pole other end are arranged on wind-tunnel half model pole base.The aerodynamic lift and resistance of model pass through height
Accurate sensor is decomposed and measured, and the effect of bar is disturbed by disappearing, and makes them in the presence of aerodynamic load, to each biography
The Load Sensitive of sensor component to be measured, produces the deformation of rdativery sensitive, and insensitive to the load of other components, do not produce or
As far as possible small deformation is produced, realizes and the machine decomposition or part of power and torque is decomposed in structure.Low speed high Reynola number wind tunnel half
Model force balance, which can be realized, measures maximum aerodynamic drag 10000N, maximum aerodynamic lift 40000N, maximum pitching moment
8000N.m.By the motion of low speed high Reynola number wind tunnel half model force balance varied angle system [18], can be achieved
The change in angle of attack of -10 ° of wind-tunnel half model ~ 40 °.
Brief description of the drawings：
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the A-A of accompanying drawing 1 to schematic diagram.
Accompanying drawing 3 is the B-B direction schematic diagram of accompanying drawing 1.
Accompanying drawing 4 is the present invention and varied angle system connection diagram.
Embodiment：
Embodiment 1：
A kind of low speed high Reynola number wind tunnel half model force balance, its composition include：Upper balance body 4, lower balance body 13, rise
Power disappear disturb bar 10, side force disappear disturb bar 1, resistance disappears and disturbs bar 5, resistive force sensor 7, lift transducer 17, load cells 14, described
Lower balance body be arranged on by screw in varied angle system 18, described lift, which disappears, disturbs bar one end on the upper balance body,
Described lift disappears to disturb to be connected with lower balance body again after the bar other end is connected with lift transducer, and described side force, which disappears, disturbs bar one end
On upper balance body, described side force disappears to disturb to be connected with lower balance body again after the bar other end is connected with load cells, institute
The resistance stated, which disappears, disturbs bar one end on upper balance body, and described resistance, which disappears, disturbs after the bar other end is connected with resistive force sensor again
It is connected with lower balance body, protective cover is buckled with described upper balance body, described upper balance body is pushed away with lower balance body by locking
Pin 2 connects, and pole base 9 is provided with by bolt on described upper balance body, between described upper balance body and lower balance body
With cell overload protector 8, there is floor 16 on described lower balance body.
Embodiment 2：
Low speed high Reynola number wind tunnel half model force balance according to embodiment 1, described resistive force sensor one end
On lower balance body, the described resistive force sensor other end is disappeared by axle sleeve 6 with resistance disturbs one end of bar and is connected and uses lock
Tight nut locking, described lift transducer one end are arranged on lower balance body, and the described lift transducer other end passes through axle
Set disappears with lift disturbs one end of bar and is connected and is locked with lock nut 11, and described load cells one end is arranged on lower balance body
On, the described load cells other end is disappeared by axle sleeve with lift disturbs one end of bar and is connected and is locked with lock nut, described
Floor pass through bolt 12 and fix on lower balance body.
Embodiment 3：
The force measuring method of low speed high Reynola number wind tunnel half model force balance according to embodiment 1 or 2, carry out low speed
During high Reynola number wind tunnel half model dynamometer check, model is arranged on wind-tunnel half model pole upper end, and wind-tunnel half model pole is another
End is arranged on wind-tunnel half model pole base, and the aerodynamic lift and resistance of model are decomposed and surveyed by high-precision sensor
Amount, the effect of bar is disturbed by disappearing, makes them in the presence of aerodynamic load, quick to the load of each sensor component to be measured
Sense, produces the deformation of rdativery sensitive, and insensitive to the load of other components, does not produce or produce as far as possible small deformation, realizes
The machine decomposition or part of power and torque are decomposed in structure, low speed high Reynola number wind tunnel half model force balance can realize measurement
Maximum aerodynamic drag 10000N, maximum aerodynamic lift 40000N, maximum pitching moment 8000N.m, pass through low speed high reynolds number wind
The motion of hole half model force balance varied angle system, the change in angle of attack of -10 ° ~ 40 ° of wind-tunnel half model can be achieved.
Claims (3)
1. a kind of low speed high Reynola number wind tunnel half model force balance, its composition includes：Upper balance body, lower balance body, lift disappear
Disturb bar, side force disappear disturb bar, resistance disappears and disturbs bar, resistive force sensor, lift transducer, load cells, it is characterized in that：Under described
Balance body is arranged in varied angle system by screw, and described lift, which disappears, disturbs bar one end on upper balance body, described
Lift disappears to disturb to be connected with lower balance body again after the bar other end is connected with lift transducer, and described side force, which disappears, disturbs bar one end and be arranged on
On upper balance body, described side force disappears to disturb to be connected with lower balance body again after the bar other end is connected with load cells, described resistance
Power, which disappears, disturbs bar one end on the upper balance body, described resistance disappear disturb after the bar other end is connected with resistive force sensor again with lower day
Flat body is connected, and protective cover is buckled with described upper balance body, and described upper balance body promotes connection with lower balance body by locking,
Pole base is provided with by bolt on described upper balance body, there is sensor between described upper balance body and lower balance body
Overload protective device, described lower balance body are connected by bolt with floor.
2. the low speed high Reynola number wind tunnel half model force balance according to claim 1, it is characterized in that：Described resistance
Sensor one end is arranged on lower balance body, and the described resistive force sensor other end is disappeared by axle sleeve and resistance disturbs one end company of bar
Connect and locked with lock nut, described lift transducer one end is arranged on lower balance body, and described lift transducer is another
Hold to disappear with lift by axle sleeve and disturb one end of bar and be connected and locked with lock nut, described load cells one end is arranged on down
On balance body, the described load cells other end is disappeared by axle sleeve with side force disturbs one end of bar and is connected and is locked with lock nut
Tightly.
3. a kind of force measuring method of low speed high Reynola number wind tunnel half model force balance using described in claim 1-2, it is special
Sign is：When carrying out low speed high Reynola number wind tunnel half model dynamometer check, wind-tunnel half model is arranged on wind-tunnel half model pole upper end,
The wind-tunnel half model pole other end is arranged on wind-tunnel half model pole base, and the aerodynamic lift and resistance of wind-tunnel half model pass through
High-precision sensor is decomposed and measured, and the effect of bar is disturbed by disappearing, and makes them in the presence of aerodynamic load, to each
The Load Sensitive of sensor component to be measured, produces the deformation of rdativery sensitive, and insensitive to the load of other components, does not produce
Or as far as possible small deformation is produced, realize the machine decomposition to power and torque in structure, low speed high Reynola number wind tunnel half model dynamometry
Balance can realize the maximum aerodynamic drag 10000N of measurement, maximum aerodynamic lift 40000N, maximum pitching moment 8000N.m, pass through
The motion of low speed high Reynola number wind tunnel half model force balance varied angle system, meeting for -10 ° ~ 40 ° of wind-tunnel half model can be achieved
Angle changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457888.6A CN105021370B (en) | 2015-07-30 | 2015-07-30 | Low speed high Reynola number wind tunnel half model force balance and force measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457888.6A CN105021370B (en) | 2015-07-30 | 2015-07-30 | Low speed high Reynola number wind tunnel half model force balance and force measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105021370A CN105021370A (en) | 2015-11-04 |
| CN105021370B true CN105021370B (en) | 2018-01-19 |
Family
ID=54411507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510457888.6A Active CN105021370B (en) | 2015-07-30 | 2015-07-30 | Low speed high Reynola number wind tunnel half model force balance and force measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105021370B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621349B (en) * | 2017-08-29 | 2024-04-12 | 中国航空工业集团公司沈阳空气动力研究所 | Wind tunnel half-mode angle-changing mechanism |
| CN108168834A (en) * | 2018-02-07 | 2018-06-15 | 广州大学 | A kind of switching device of multi-model high frequency base balance experiment |
| CN108303227B (en) * | 2018-02-14 | 2024-04-05 | 中国空气动力研究与发展中心高速空气动力研究所 | Static aeroelastic wind tunnel test semi-model system and test method |
| CN110907125A (en) * | 2018-09-17 | 2020-03-24 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for testing power influence of separated half-mold injection type nacelle |
| CN110803299B (en) * | 2019-10-21 | 2022-09-06 | 中国直升机设计研究所 | Rotary balance for testing rotor load |
| CN115574914B (en) * | 2022-09-26 | 2023-04-14 | 中国航空工业集团公司哈尔滨空气动力研究所 | Calibration device and calibration method for low-speed wind tunnel external air bridge balance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5663497A (en) * | 1996-07-22 | 1997-09-02 | Mole; Philip J. | Six component wind tunnel balance |
| CN1190073A (en) * | 1997-02-03 | 1998-08-12 | 中国航空工业总公司第六二六研究所 | Quadruple cross-position support for semi-model wind channel test |
| CN1456871A (en) * | 2003-06-12 | 2003-11-19 | 南京航空航天大学 | Six-dimensional parallel balance |
| CN104713694A (en) * | 2015-04-08 | 2015-06-17 | 中国航天空气动力技术研究院 | High-lift-to-drag ratio balance applied to low-speed wind tunnel |
| CN204831747U (en) * | 2015-07-30 | 2015-12-02 | 中国航空工业集团公司哈尔滨空气动力研究所 | Low -speed high reynola number wind tunnel half model measured force balance |
-
2015
- 2015-07-30 CN CN201510457888.6A patent/CN105021370B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5663497A (en) * | 1996-07-22 | 1997-09-02 | Mole; Philip J. | Six component wind tunnel balance |
| CN1190073A (en) * | 1997-02-03 | 1998-08-12 | 中国航空工业总公司第六二六研究所 | Quadruple cross-position support for semi-model wind channel test |
| CN1456871A (en) * | 2003-06-12 | 2003-11-19 | 南京航空航天大学 | Six-dimensional parallel balance |
| CN104713694A (en) * | 2015-04-08 | 2015-06-17 | 中国航天空气动力技术研究院 | High-lift-to-drag ratio balance applied to low-speed wind tunnel |
| CN204831747U (en) * | 2015-07-30 | 2015-12-02 | 中国航空工业集团公司哈尔滨空气动力研究所 | Low -speed high reynola number wind tunnel half model measured force balance |
Non-Patent Citations (1)
| Title |
|---|
| 《在高速风洞中用半模型测定飞行器铰链力矩的简易方法及其天平设计》;董庚寿 等;《南京航空航天大学学报》;19630228(第2期);第31-46页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105021370A (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105021370B (en) | Low speed high Reynola number wind tunnel half model force balance and force measuring method | |
| CN103616157B (en) | The quiet calibration system of wind-tunnel balance body axle system and method | |
| CN101685039B (en) | Method for testing field ground load calibration of airplane wing and calibration device thereof | |
| CN101832851B (en) | Air flotation force measuring device of wind tunnel model | |
| CN105136391B (en) | A kind of method and system of survey aircraft in ground stress point distance | |
| CN110108442A (en) | Wind-tunnel balance terminal attitude measuring and its method in balance calibration | |
| CN103072895A (en) | Real-time measuring method and device for lateral perpendicularity of tower crane steel structure | |
| CN102927966A (en) | Method for improving monitoring accuracy of structural settlement | |
| CN103759954A (en) | Method and device for precisely testing rolling resistance of tyres | |
| CN108168774A (en) | A kind of space vector force calibration method | |
| CN204924542U (en) | A wave force testing arrangement for wave wall | |
| CN109141933B (en) | Hub type sensor force measuring system | |
| CN204831747U (en) | Low -speed high reynola number wind tunnel half model measured force balance | |
| CN103630326A (en) | Deformation-resisting measurement arm used in wind-tunnel balance body axis calibration and application of deformation-resisting measurement arm | |
| CN111044253A (en) | Quick loading method for six-component rod type balance | |
| CN104596697B (en) | Undercarriage wheel brake kinetic moment measuring method | |
| CN203101223U (en) | Impact test device for measuring flowing pressure of discrete material | |
| CN201754117U (en) | Comparison type dynamic-static torque standard machine | |
| CN106124123A (en) | Experimental provision spent surely by a kind of torque sensor | |
| CN212722550U (en) | Tester for rolling friction coefficient of mixture | |
| CN106092498B (en) | A kind of five component piezoelectric types " double balances " | |
| CN209910943U (en) | Wind tunnel balance terminal attitude measuring device | |
| CN203037247U (en) | Wireless barometric leveling device | |
| CN206019966U (en) | A kind of high-speed railway bridge measurement of dynamic deflection system | |
| CN109115378A (en) | A kind of flexural pivot force test device and its test method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |