CN110108440A - A kind of wind-tunnel balance attitude-control device - Google Patents

A kind of wind-tunnel balance attitude-control device Download PDF

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Publication number
CN110108440A
CN110108440A CN201910387942.2A CN201910387942A CN110108440A CN 110108440 A CN110108440 A CN 110108440A CN 201910387942 A CN201910387942 A CN 201910387942A CN 110108440 A CN110108440 A CN 110108440A
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CN
China
Prior art keywords
wind
tunnel balance
control device
rotation
luffing mechanism
Prior art date
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Pending
Application number
CN201910387942.2A
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Chinese (zh)
Inventor
刘施然
张磊乐
赵荣娟
黄军
吕治国
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Ultra High Speed Aerodynamics Institute China Aerodynamics Research and Development Center
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Ultra High Speed Aerodynamics Institute China Aerodynamics Research and Development Center
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Application filed by Ultra High Speed Aerodynamics Institute China Aerodynamics Research and Development Center filed Critical Ultra High Speed Aerodynamics Institute China Aerodynamics Research and Development Center
Priority to CN201910387942.2A priority Critical patent/CN110108440A/en
Publication of CN110108440A publication Critical patent/CN110108440A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels
    • G01M9/06Measuring arrangements specially adapted for aerodynamic testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels
    • G01M9/06Measuring arrangements specially adapted for aerodynamic testing
    • G01M9/062Wind tunnel balances; Holding devices combined with measuring arrangements

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

The present invention relates to wind tunnel balance calibration technical fields, specifically disclose a kind of wind-tunnel balance attitude-control device.A kind of wind-tunnel balance attitude-control device, the device includes pedestal, luffing mechanism and rotation mechanism for wind, wherein, integrated setting has rotation mechanism for wind among luffing mechanism, luffing mechanism both ends are set on the base by rotary shaft, are synchronized luffing mechanism and rotation mechanism for wind and are moved certain angle along rotary shaft;The rotation mechanism for wind can rotate by a certain angle on the direction perpendicular to luffing mechanism rotation axis.The device uses biparting impeller structure luffing mechanism, and rotation mechanism for wind is located at the layout of the integral type inside luffing mechanism, greatly enhance the normal stiffness of wind-tunnel balance attitude-control device, make it that can not only be applied to foil strain gauge wind-tunnel balance, semiconductor strain gauge wind-tunnel balance can also apply to piezoelectricity wind-tunnel balance;Meanwhile luffing mechanism center of gravity guarantees pitching movement even always close to driving end.

Description

A kind of wind-tunnel balance attitude-control device
Technical field
The invention belongs to wind tunnel balance calibration technical fields, and in particular to a kind of wind-tunnel balance attitude-control device.
Background technique
Wind tunnel balance calibration is one of the key link of wind-tunnel balance application, and the purpose is to be obtained by wind tunnel balance calibration Relational matrix between wind-tunnel balance input and output.Wind-tunnel balance in actual use, it is defeated by calibrating obtained wind-tunnel balance Enter relational matrix between output, wind-tunnel balance output, could inverse obtain the input of wind-tunnel balance, i.e., effective aerodynamic force carries Lotus.The calibration process of wind-tunnel balance is the process of a simulation wind-tunnel balance use state, when wind tunnel balance calibration, calibrator (-ter) unit Apply accurate design load to wind-tunnel balance, the output of wind-tunnel balance is collected by data acquisition instrument, to carry out The calculating of wind-tunnel balance input/output relation matrix.The calibrator (-ter) unit of wind-tunnel balance has all multiple types, and different types respectively has excellent Gesture, wherein single vector multi-units calibration equipment is due to the spies such as simple, high reliablity, development cost be low with device structure and control Point is used by my portion.Single vector multi-units calibration equipment realizes design by the relative position of change wind-tunnel balance and weight load Load of the load on wind-tunnel balance.Since weight load is gravity caused by counterbalance mass, direction remains vertical Constant, single vector multi-units calibration equipment is by changing wind-tunnel balance pitch angle, roll angle, to realize weight load aweather The flat axial force of cave heaven, normal force, lateral force resolution, meanwhile, by changing in weight load position and wind tunnel balance calibration The relative distance of the heart realizes the application of wind-tunnel balance pitching moment, yawing, rolling moment.Changing wind-tunnel balance posture is The major function of single vector multi-units calibration equipment, structure type mainly include multi-shaft interlocked type, turntable-type etc..
Summary of the invention
The purpose of the present invention is to provide a kind of wind-tunnel balance attitude-control devices, solve under the conditions of greater stiffness, change Become and control wind-tunnel balance pitch angle, roll angle, so that weight load is in wind-tunnel balance axial force, normal force and lateral force It is accurately decomposed on direction, realizes the calibration of wind-tunnel balance.
Technical scheme is as follows: a kind of wind-tunnel balance attitude-control device, which includes pedestal, luffing mechanism And rotation mechanism for wind, wherein integrated setting has rotation mechanism for wind among luffing mechanism, and luffing mechanism both ends are set by rotary shaft It sets on pedestal, synchronizes luffing mechanism and rotation mechanism for wind and move certain angle along rotary shaft;The rotation mechanism for wind can be with It rotates by a certain angle on the direction perpendicular to luffing mechanism rotation axis.
The luffing mechanism is biparting impeller structure, and is provided with rotation mechanism for wind between the Dual-blade and is formed whole Body structure;The center-side of Dual-blade is fixed on the base two support arms of end face by swivel bearing in the luffing mechanism On, Shi Yang mechanism and rotation mechanism for wind along Dual-blade central axis rotation.
The flabellum arc end surface is equipped with high-precision arc-shaped rack, with the driving gear matches being located on pedestal Engagement;The driving gear is connected by shaft coupling with servo motor A, is bowed by shaft coupling and driving gear synchronous driving The Dual-blade faced upward in mechanism moves synchronously.
The pedestal is equipped with pitching retaining mechanism, and luffing mechanism Dual-blade is arranged in the pitching retaining mechanism Two sides, the pitching retaining mechanism realize the uniform clamping to biparting impeller structure by hydraulic and spring.
The rotation mechanism for wind includes hollow worm gear and servo motor B, wherein hollow worm gear setting biparting impeller structure it Between rotation mechanism for wind shell on, and using servo motor B driving hollow worm gear rotate;Coding is equipped in the servo motor B Device can measure the rotation angle for obtaining hollow worm gear.
The rotation mechanism for wind further includes rolling retaining mechanism, and the rolling retaining mechanism is set on the base, and is Ring structure, and cover on hollow worm gear, and utilize hydraulic and spring, realize the band-type brake to hollow worm gear and release;Described The axis of rolling retaining mechanism is overlapped with the axis of hollow worm gear.
The settable wind-tunnel balance in hollow worm gear front end or rear end in the rotation mechanism for wind, the wind-tunnel balance are logical Cross front end or rear end that wind-tunnel balance mounting base is mounted on hollow worm gear, wherein shorter wind-tunnel balance may be provided at hollow snail The front end of bar, the longer wind-tunnel balance of length are installed in its back-end after passing through hollow worm gear.
The connection type of reinforcing rib is used between Dual-blade and rotation mechanism for wind in the luffing mechanism, to enhance pitching The coupling stiffness of mechanism and rotation mechanism for wind entirety.
Encoder inside the servo motor A is capable of the movement angle of precise measurement acquisition luffing mechanism.
The pedestal is rigid frame structure, can guarantee wind-tunnel balance do not occur during wind tunnel balance calibration Deformation outside calibration accuracy allowed band.
Remarkable result of the invention is: a kind of wind-tunnel balance attitude-control device of the present invention has following excellent Point: 1, integral type luffing mechanism inside layout is located at by biparting impeller structure luffing mechanism and rotation mechanism for wind, greatly increased The strong normal stiffness of wind-tunnel balance attitude-control device, makes it that can not only be applied to foil strain gauge wind-tunnel balance, partly lead Body strain meter wind-tunnel balance, can also apply to piezoelectricity wind-tunnel balance;2, pass through biparting impeller structure luffing mechanism, shaft coupling and arc Shape rack-pinion driving design, so that luffing mechanism center of gravity guarantees pitching movement even always close to driving end;3, lead to Rotation mechanism for wind worm screw hollow design is crossed, with wind-tunnel balance mounting base modularized design, meets different length, variety classes wind-tunnel day Flat calibration requirements.
Detailed description of the invention
Fig. 1 is a kind of wind-tunnel balance attitude-control device structural schematic diagram of the present invention;
Fig. 2 is a kind of wind-tunnel balance attitude-control device schematic rear view of the present invention;
Fig. 3 is a kind of wind-tunnel balance attitude-control device front-view schematic diagram of the present invention;
In figure: 1, pedestal;2, pitching retaining mechanism;3, luffing mechanism;4, rolling retaining mechanism;5, rotation mechanism for wind;6, pacify Fill seat;7, gear is driven;8, arc-shaped rack;9, shaft coupling;10, servo motor A, 11, reinforcing rib;12, hollow worm gear;13, wind Cave heaven is flat;14, loading sleeve;15, servo motor B.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figures 1 to 3, a kind of wind-tunnel balance attitude-control device, including pedestal 1, luffing mechanism 3 and rotation mechanism for wind 5, wherein pedestal 1 is rigid frame structure, can guarantee do not occur wind tunnel balance calibration essence during wind tunnel balance calibration Spend the deformation outside allowed band;Luffing mechanism 3 is biparting impeller structure, and 5 shape of rotation mechanism for wind is fixedly installed between Dual-blade Integral structure uses the connection type of reinforcing rib between the Dual-blade and rotation mechanism for wind 5 in luffing mechanism 3, is bowed with enhancing Face upward the coupling stiffness of 5 entirety of mechanism 3 and rotation mechanism for wind;The center-side of 3 Dual-blade of luffing mechanism is fixed on pedestal 1 by bearing On two support arms of end face, make luffing mechanism 3 and rotation mechanism for wind 5 along the central axis rotation of Dual-blade;In luffing mechanism 3 High-precision arc-shaped rack 8 is installed, with two high-precisions being mounted on pedestal 1 in the arc end surface of two blade structures Driving gear 7 is meshed matching, and two driving gears 7 are connected by shaft coupling 9 with servo motor A10, and shaft coupling 9 is passed through And driving gear 7, two blade structures of driving luffing mechanism 3 rotate synchronously;Encoder inside servo motor A10 being capable of essence Really measurement obtains the movement angle of luffing mechanism;It is equipped with and bows on 1 upper surface of pedestal for being located at 3 Dual-blade two sides of luffing mechanism Retaining mechanism 2 is faced upward, by hydraulic and spring, the uniform clamping to Dual-blade mechanism is realized, realizes the lock to luffing mechanism 3 Tightly;Rotation mechanism for wind 5 includes hollow worm gear 12, rolling retaining mechanism 4 and servo motor B 15, wherein hollow worm gear 12 passes through rolling The through-hole of 5 shell of rotation mechanism is simultaneously vertically mounted between luffing mechanism 3, is made double in the axis and luffing mechanism 3 of hollow worm gear 12 Axis perpendicular between flabellum, and the driving hollow worm gear 12 of the servo motor B 15 by being mounted between Dual-blade rotates, benefit The movement angle of hollow worm gear 12 in rotation mechanism for wind 5 is obtained with the encoder measurement in servo motor B 15;It is being located at luffing mechanism Rolling retaining mechanism 4 is cased on the rear end of the hollow worm gear 12 of 3 Dual-blade cambered surface ends, wherein rolling retaining mechanism 4 is mounted on It is real by the hydraulic and spring in ring structure for the ring structure that axis is overlapped with 12 axis of hollow worm gear on pedestal 1 The now uniform band-type brake on the basis of the axis of hollow worm gear 12 realizes the locking to rotation mechanism for wind 5;Wind-tunnel balance 13 passes through wind-tunnel Balance mounting base 6 is mounted on the front end or rear end of hollow worm gear 12, wherein shorter wind-tunnel balance 13 is mountable in hollow worm gear 12 front end, the longer wind-tunnel balance 13 of length are installed in its back-end after passing through hollow worm gear 12;
A kind of specifically used process of wind-tunnel balance attitude-control device of the present invention are as follows: wind-tunnel balance 13 passes through wind-tunnel Balance mounting base 6 is mounted on 5 hollow worm gear of rotation mechanism for wind, 12 front end, and the load for applying weight load is installed on wind-tunnel balance Set 14.Assuming that load counterbalance mass is 10kg, luffing mechanism drives servo motor 10 to drive luffing mechanism 3 to transport by shaft coupling 9 30 ° dynamic, pitching retaining mechanism 2 locks luffing mechanism, and rotation mechanism for wind drives servo motor 15 that rotation mechanism for wind 5 is driven to move 30 °, rolling Turn retaining mechanism 4 and locks rotation mechanism for wind.Weight load will decompose on wind-tunnel balance 13 according to angular relationship, at this point, wind Axial force 50N, normal force 75N, lateral force 43.3N are applied in cave heaven flat 13.

Claims (10)

1. a kind of wind-tunnel balance attitude-control device, it is characterised in that: the device includes pedestal (1), luffing mechanism (3) and rolling Rotation mechanism (5), wherein have rotation mechanism for wind (5) in the intermediate integrated setting of luffing mechanism (3), luffing mechanism (3) both ends pass through rotation Shaft is arranged on pedestal (1), synchronizes luffing mechanism (3) and rotation mechanism for wind and moves certain angle along rotary shaft;Described Rotation mechanism for wind (5) can rotate by a certain angle on the direction perpendicular to luffing mechanism rotation axis.
2. a kind of wind-tunnel balance attitude-control device according to claim 1, it is characterised in that: the luffing mechanism (3) it is biparting impeller structure, and is provided with rotation mechanism for wind (5) between the Dual-blade and forms overall structure;Described bows The center-side for facing upward Dual-blade in mechanism (3) is fixed on two support arms of pedestal (1) upper surface by swivel bearing, makes to face upward machine Structure (3) and rotation mechanism for wind (5) along Dual-blade central axis rotation.
3. a kind of wind-tunnel balance attitude-control device according to claim 2, it is characterised in that: the flabellum arc end Face is equipped with high-precision arc-shaped rack (8), engages with driving gear (7) matching being located on pedestal (1);The driving Gear (7) is connected by shaft coupling (9) with servo motor A (10), and shaft coupling (9) and the synchronous driving of driving gear (7) are passed through Dual-blade in luffing mechanism (3) moves synchronously.
4. a kind of wind-tunnel balance attitude-control device according to claim 2, it is characterised in that: on the pedestal (1) Equipped with pitching retaining mechanism (2), described pitching retaining mechanism (2) setting is described in the two sides of luffing mechanism (3) Dual-blade Pitching retaining mechanism (2) realizes the uniform clamping to biparting impeller structure by hydraulic and spring.
5. a kind of wind-tunnel balance attitude-control device according to right 1, it is characterised in that: rotation mechanism for wind (5) packet Include hollow worm gear (12) and servo motor B (15), wherein the rotation mechanism for wind between biparting impeller structure is arranged in hollow worm gear (12) (5) it on shell, and is rotated using servo motor B (15) driving hollow worm gear (12);It is equipped with and compiles in the servo motor B (15) Code device, can measure the rotation angle for obtaining hollow worm gear (12).
6. a kind of wind-tunnel balance attitude-control device according to claim 5, it is characterised in that: the rotation mechanism for wind It (5) further include rolling retaining mechanism (4), it is ring structure that the rolling retaining mechanism (4), which is arranged on pedestal (1), and It covers on hollow worm gear (12), and utilizes hydraulic and spring, realize the band-type brake to hollow worm gear (12) and release;The rolling The axis of retaining mechanism (4) is overlapped with the axis of hollow worm gear (12).
7. a kind of wind-tunnel balance attitude-control device according to claim 5, it is characterised in that: the rotation mechanism for wind (5) the settable wind-tunnel balance (13) in hollow worm gear (12) front end or rear end in, the wind-tunnel balance (13) pass through wind-tunnel Balance mounting base (6) is mounted on the front end or rear end of hollow worm gear (12), wherein during shorter wind-tunnel balance (13) may be provided at The front end of empty worm screw (12), the longer wind-tunnel balance of length (13) pass through hollow worm gear (12) and install afterwards in its back-end.
8. a kind of wind-tunnel balance attitude-control device according to claim 2, it is characterised in that: the luffing mechanism (3) connection type of reinforcing rib is used between the Dual-blade and rotation mechanism for wind (5) in, to enhance luffing mechanism (3) and roller The coupling stiffness of structure (5) entirety.
9. a kind of wind-tunnel balance attitude-control device according to claim 3, it is characterised in that: the servo motor A (10) internal encoder is capable of the movement angle of precise measurement acquisition luffing mechanism.
10. a kind of wind-tunnel balance attitude-control device according to claim 1, it is characterised in that: the pedestal (1) is Rigid frame structure can guarantee do not occur outside wind tunnel balance calibration precision allowed band during wind tunnel balance calibration Deformation.
CN201910387942.2A 2019-05-10 2019-05-10 A kind of wind-tunnel balance attitude-control device Pending CN110108440A (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

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Publication number Priority date Publication date Assignee Title
CN110108441A (en) * 2019-05-10 2019-08-09 中国空气动力研究与发展中心超高速空气动力研究所 A kind of wind-tunnel balance dynamometer check preparation device
CN111207902A (en) * 2020-01-17 2020-05-29 中国空气动力研究与发展中心超高速空气动力研究所 Method for initializing installation data of wind tunnel balance single-vector multi-element calibration loading sleeve
CN111289215A (en) * 2020-03-16 2020-06-16 中国空气动力研究与发展中心超高速空气动力研究所 Shock tunnel piezoelectric balance calibration method
CN113639956A (en) * 2021-10-18 2021-11-12 中国空气动力研究与发展中心高速空气动力研究所 Calibration device and calibration method for model inclination angle measurement device
CN114166461A (en) * 2021-12-15 2022-03-11 中国空气动力研究与发展中心高速空气动力研究所 Wind-tunnel balance non-resetting body axis system calibrating device
CN115077844A (en) * 2022-07-20 2022-09-20 中国航空工业集团公司沈阳空气动力研究所 Attitude angle accurate control system and method for continuous wind tunnel test
CN115597820A (en) * 2022-12-15 2023-01-13 中国空气动力研究与发展中心超高速空气动力研究所(Cn) Yaw mechanism of large hypersonic-velocity high-temperature wind tunnel model feeding system
CN115655636A (en) * 2022-12-15 2023-01-31 中国空气动力研究与发展中心超高速空气动力研究所 Pitching attack angle mechanism of large hypersonic high-temperature wind tunnel model feeding system

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110108441A (en) * 2019-05-10 2019-08-09 中国空气动力研究与发展中心超高速空气动力研究所 A kind of wind-tunnel balance dynamometer check preparation device
CN111207902A (en) * 2020-01-17 2020-05-29 中国空气动力研究与发展中心超高速空气动力研究所 Method for initializing installation data of wind tunnel balance single-vector multi-element calibration loading sleeve
CN111207902B (en) * 2020-01-17 2020-10-16 中国空气动力研究与发展中心超高速空气动力研究所 Method for initializing installation data of wind tunnel balance single-vector multi-element calibration loading sleeve
CN111289215A (en) * 2020-03-16 2020-06-16 中国空气动力研究与发展中心超高速空气动力研究所 Shock tunnel piezoelectric balance calibration method
CN113639956A (en) * 2021-10-18 2021-11-12 中国空气动力研究与发展中心高速空气动力研究所 Calibration device and calibration method for model inclination angle measurement device
CN113639956B (en) * 2021-10-18 2022-01-18 中国空气动力研究与发展中心高速空气动力研究所 Calibration device and calibration method for model inclination angle measurement device
CN114166461A (en) * 2021-12-15 2022-03-11 中国空气动力研究与发展中心高速空气动力研究所 Wind-tunnel balance non-resetting body axis system calibrating device
CN114166461B (en) * 2021-12-15 2023-04-25 中国空气动力研究与发展中心高速空气动力研究所 Wind tunnel balance non-reset body shafting calibrating device
CN115077844A (en) * 2022-07-20 2022-09-20 中国航空工业集团公司沈阳空气动力研究所 Attitude angle accurate control system and method for continuous wind tunnel test
CN115077844B (en) * 2022-07-20 2022-10-25 中国航空工业集团公司沈阳空气动力研究所 Attitude angle accurate control system and method for continuous wind tunnel test
CN115597820A (en) * 2022-12-15 2023-01-13 中国空气动力研究与发展中心超高速空气动力研究所(Cn) Yaw mechanism of large hypersonic-velocity high-temperature wind tunnel model feeding system
CN115655636A (en) * 2022-12-15 2023-01-31 中国空气动力研究与发展中心超高速空气动力研究所 Pitching attack angle mechanism of large hypersonic high-temperature wind tunnel model feeding system

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