CN107966266A - One kind forces dynamic derivative balance dynamic corrector - Google Patents
One kind forces dynamic derivative balance dynamic corrector Download PDFInfo
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- CN107966266A CN107966266A CN201711348428.5A CN201711348428A CN107966266A CN 107966266 A CN107966266 A CN 107966266A CN 201711348428 A CN201711348428 A CN 201711348428A CN 107966266 A CN107966266 A CN 107966266A
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- soft iron
- coil
- dynamic
- back segment
- leading portion
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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
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
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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 proposes one kind and forces dynamic derivative balance dynamic corrector, including：Pedestal；Two arc coils；Installation sleeve and mounting platform, the both ends of the installation sleeve are installed on two arc coils by the mounting platform respectively；Multiple magnetic field producers, are arranged on the pedestal, in the floated Lorentz force action passage for being arranged on the magnetic field producer and being formed of the arc coil.During the dynamic corrector work of the present invention, athletic meeting produces Lorentz force in the high-intensity magnetic field that magnetic field producer is formed after the energization of arc coil, the power changes with the change in sports calibration frame movement velocity and direction so as to form the dynamic loading of alternation, therefore can realize the dynamic calibration for balance.
Description
Technical field
The invention belongs to wind tunnel test field, and dynamic derivative balance dynamic corrector is forced more particularly to one kind.
Background technology
Differentiation in wind tunnel test field there are static test and dynamic test, static test refer to measure aircraft fixed
Aerodynamic characteristic under permanent current field (flow fields environment velocity magnitude, direction, pressure etc. are in stable state) environment, and during dynamic test
Aircraft exterior flow field is in unsteady (flow fields environment velocity magnitude, direction, pressure etc. are in variable condition) state, for strong
The unsteady regime is to drive model sport to produce by vibration exciter for compeling dynamic derivative testing.
There is also static calibration and the difference of dynamic calibration for balance calibration, static balance calibration mechanism be for
The ground experiment device of the quiescent operation state of balance is simulated, the six component load that balance can be demarcated under the conditions of respective loads are defeated
Go out the functional relation i.e. balance coefficient of corresponding normal loading change.Dynamic scale calibrator is the dynamic duty for simulating balance
The ground experiment device of state, its requirement under the conditions of corresponding dynamic loading, should demarcate the corresponding mark of six component load output of balance
The value of quasi- dynamic loading variation relation.For the experiment of forced vibration dynamic derivative, using static calibration there are limitation,
Reason is as follows：
1st, when unsteady aerodynamic force is tested, inertia force (square) calibration of model system needs dynamic scale correcting mechanism, adopts
With static demarcating due to that cannot reflect the time lag of system in itself, measurement error can be brought.
2nd, when cross derivative is tested, the mechanical damping calibration of model system needs dynamic scale correcting mechanism, using static state
Calibration cannot provide the mechanical damping of model system.
And the dynamic calibrator due to can not produce alternate load domestic at present, force dynamic derivative testing it is general only into
Row static calibration and without the calm calibration in the case of alternate load, can cause result of the test larger systematic error.
Therefore, a kind of dynamic calibrator that can produce alternate load is badly in need of in this area.
The content of the invention
The present invention provides a kind of dynamic calibration solution, it can be when dynamic measurement system be vibrated to its accurate loading
Alternate load.
According to an aspect of the present invention, there is provided one kind forces dynamic derivative balance dynamic corrector, including：
Pedestal；
Two arc coils；
Installation sleeve and mounting platform, the both ends of the installation sleeve are installed to two arcs by the mounting platform respectively
On shape coil；
Multiple magnetic field producers, are arranged on the pedestal, and the arc coil is floated to be arranged on the magnetic field generation
In the Lorentz force action passage that device is formed.
Further, further include sleeve, be connected to by installation sleeve on the arc coil, it is internal by connect cone with
Dynamic scale, elastic hinge, strut and vibration exciter link together.
Further, the magnetic field producer includes first coil, the second coil, soft iron back segment, soft iron seat back segment, soft iron
Leading portion, soft iron seat leading portion；
The first coil and the second coil are installed on the soft iron back segment；
The soft iron leading portion, soft iron back segment are respectively arranged in the soft iron seat leading portion, on soft iron seat back segment；
Soft iron seat leading portion and soft iron the seat back segment is arranged on the pedestal.
Further, the first pressure strip and the second pressure strip are further comprised, the soft iron leading portion, soft iron back segment lead to respectively
Cross first pressure strip and the second pressure strip be fixed in the soft iron seat leading portion, soft iron seat back segment groove in.
Further, the quantity of the magnetic field producer is four, and two magnetic field producers are one group, with a curved line
Circle is engaged.
Further, the soft iron leading portion is oppositely arranged to form spherical space with soft iron back segment, and the arc coil is set
Spherical space between the soft iron leading portion and soft iron back segment.
Further, the arc coil includes：
Coil cover board and magazine, are distributed on the magazine fluted；
Yawing control coil and pitching moment control coil, are separately positioned in the groove of the magazine；
The coil cover board is installed on the magazine, for protecting the control coil in groove.
Further, the intersection point of the yawing control coil and pitching moment control coil be located at soft iron leading portion with it is soft
Centre position between iron back segment.
Further, the mounting platform includes projection section and planar section, the projection section with arc coil
Fit depressions, by the planar section level-off after installation.
Further, plug is further included, the plug is connected to the front end of sleeve, and adjuster is formed with the sleeve combination
Sports calibration frame.
The present invention dynamic corrector work when, sports calibration frame produced under the drive of vibration exciter pitch vibration or
Yaw oscillation, at this time arc coil can magnetic field producer front and rear sections soft iron formed spherical space in move, magnetic field producer
Coil can form high-intensity magnetic field after being powered, athletic meeting produces long-range navigation in the high-intensity magnetic field that magnetic field producer is formed after the energization of arc coil
Hereby power, the power change with the change in sports calibration frame movement velocity and direction so as to form the dynamic loading of alternation, therefore energy
Enough realize the dynamic calibration for balance.
Brief description of the drawings
Disclosure illustrative embodiments are described in more detail in conjunction with the accompanying drawings, the disclosure above-mentioned and its
Its purpose, feature and advantage will be apparent, wherein, in disclosure illustrative embodiments, identical reference number
Typically represent same parts.
Fig. 1 shows the overall installation diagram for forcing dynamic derivative balance dynamic corrector of the embodiment of the present invention.
Fig. 2 shows the magnetic field producer schematic diagram of the embodiment of the present invention.
Fig. 3 shows the arc magazine schematic diagram of the embodiment of the present invention.
Fig. 4 shows the schematic diagram of the arc magazine opposite side of the embodiment of the present invention.
Fig. 5 shows the mounting platform schematic diagram of the embodiment of the present invention.
Reference numeral
Plug 100, sleeve 200, magnetic field producer 300, arc coil 400, mounting platform 500, installation sleeve 600, base
Seat 700；
First party coil 301, soft iron back segment 302, soft iron seat back segment 303, the second pressure strip 304, second party coil 305,
First pressure strip 306, soft iron seat leading portion 307, soft iron leading portion 308；
Coil cover board 401, magazine 402, yawing control coil 403, pitching moment control coil 404；Boss
Part 501, planar section 502.
Embodiment
The preferred embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the disclosure without the embodiment party that should be illustrated here
Formula is limited.On the contrary, these embodiments are provided so that the disclosure is more thorough and complete, and can be by the disclosure
Scope is intactly communicated to those skilled in the art.
Similar with static balance calibration mechanism, dynamic scale calibrator is to demarcate dynamic using known standard dynamic loading
Balance, the dynamic scale calibrator unlike static balance calibration mechanism be able to will be provided once moves (main fortune with model system
It is dynamic) synchronous alternation dynamic loading, when dynamic stability experimental rig carries out given once movement (main motion), dynamic scale calibration
Device will can provide different load, there is provided with model system movement, including with amplitude and phase be relevant, one and several freedom
The load of degree, compares the known loaded value of dynamic scale calibrator and the dynamic output valve for leading pilot system, it is possible to obtain dynamic
The calibration value (exact value of the moment of inertia and mechanical damping) of its flat response.
In general, dynamic scale calibrator provide known loaded value should meet it is claimed below：
1st, must be related to the main motion of dynamic testing equipment；
The 2nd, the load of two frees degree can be at least provided at the same time；
3rd, the loading of multiple frees degree must be independent, and each free degree can independently select respective load, including amplitude
And phase；
4th, multiple free degree loading capacities should be suitable with wind tunnel test aerodynamic loading magnitude；
5th, cannot be interfered with each other between multiple free degree loading capacities.
Due to that cannot be interfered with each other between the multiple frees degree of load maintainer, the load mode using contact is infeasible
, it is necessary to using the sports calibration frame to suspend, the installation of alternative model, dynamic testing equipment on dynamic testing equipment
(for example, vibration exciter) provides the main motion of system under test (SUT).
The shape of sports calibration frame (sleeve) is determined by the inertial properties (mainly rotary inertia) of test model, therefore is transported
Dynamic calibrated mount (sleeve) needs after being computed plus counterweight, to meet the inertial properties of test model, in order to easy to adjust, and movement school
Quasi- frame should be as light as possible, to add counterweight convenient.
Therefore, the present disclosure proposes one kind to force dynamic derivative balance dynamic corrector, including：
Pedestal；
Two arc coils；
Installation sleeve and mounting platform, the both ends of the installation sleeve are installed to two arcs by the mounting platform respectively
On shape coil；
Multiple magnetic field producers, are arranged on the pedestal, and the arc coil is floated to be arranged on the magnetic field generation
In the Lorentz force action passage that device is formed.
Further, further include sleeve, be connected to by installation sleeve on the arc coil, it is internal by connect cone with
Dynamic scale, elastic hinge, strut and vibration exciter link together.Specific address, installation sleeve both ends connection curved line
Circle, after sleeve through installation sleeve and being integrally fixed.It is connected in sleeve interconnection structure for cone, passes through attachment screw
It is strained and fixed with dynamic scale inner cone with merging.
Preferably, plug is further included, plug is connected to the front end of sleeve, and adjuster movement school is formed with the sleeve combination
Quasi- frame.The geometrical construction of sports calibration frame will be capable of the inertial properties of simulation model, and the simulation to model rotation inertia will need to transport
Dynamic calibrated mount is done as light as possible, while carries out counterweight in position according to the situation of model to realize.For example, movement school
Quasi- frame can be made of the beam of thin-walled hollow form of tubes, and this structure allows it to be moved and doing from strut in vertical and horizontal
Disturb.
Preferably, the quantity of magnetic field producer is four, and two magnetic field producers are one group, are matched with an arc coil
Close.
Each magnetic field producer includes first coil, the second coil, soft iron back segment, soft iron seat back segment, soft iron leading portion, soft iron
Seat leading portion；First coil and the second coil are installed on the soft iron back segment；Soft iron leading portion, soft iron back segment are respectively arranged in described
On soft iron seat leading portion, soft iron seat back segment；Soft iron seat leading portion and soft iron seat back segment are arranged on pedestal.Soft iron leading portion and soft iron back segment
Can use neodymium iron boron iron Gan systems into.By first coil and the second coil switch power, produced between soft iron leading portion and soft iron back segment
Raw high-intensity magnetic field.First and second coil is fixed on formation Lorentz force generator on soft iron leading portion, first coil and the second coil
Between form spherical space, yawing control coil and pitching moment control coil move the friendship needed for producing in this space
Varying load, magnitude of load can be realized by replacement side's coil or change size of current.
Preferably, the first pressure strip and the second pressure strip are further comprised, the soft iron leading portion, soft iron back segment pass through respectively
First pressure strip and the second pressure strip be fixed in the soft iron seat leading portion, soft iron seat back segment groove in.
Further, the arc coil includes：Coil cover board and magazine, are distributed on magazine fluted；Partially
Navigate Torque Control coil and pitching moment control coil, is separately positioned in the groove of magazine；Coil cover board is installed on institute
State on magazine, for protecting the control coil in groove.Twisting surface insulated conductor is formed and bowed in the groove of magazine
Torque Control coil and yawing control coil are faced upward, magazine surface is sphere, it is its ball after entirety with sleeve connection
The heart is located at the elastic hinge centre of oscillation.For example, it is " Z " word beam and " one " word girder construction among elastic hinge, " Z " word beam erects
The intersection point of beam and " one " word beam is the elastic hinge centre of oscillation, under the exciting of exterior vibrator elastic hinge will produce with
Vibration centered on the point.Coil cover board, which is installed on magazine, forms overall structure, yawing control coil and pitching
The intersection point of Torque Control coil is located at soft iron leading portion and the centre position in soft iron back segment gap forms Lorentz force action passage.
Preferably, soft iron leading portion is oppositely arranged to form spherical space with soft iron back segment, and arc coil is arranged on the soft iron
Spherical space between leading portion and soft iron back segment.It is highly preferred that the friendship of yawing control coil and pitching moment control coil
Centre position of the point between soft iron leading portion and soft iron back segment.
Further, mounting platform includes projection section and planar section, projection section and the groove phase on arc coil
Coordinate, the planar section of mounting platform is then tuned into level using level meter.
For ease of understanding the scheme of the embodiment of the present invention and its effect, a concrete application example is given below.This area
It should be understood to the one skilled in the art that the example, only for the purposes of understanding the present invention, its any detail is not intended to be limited in any way
The system present invention.The embodiment of the present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, dynamic derivative balance dynamic corrector, including plug 100, sleeve 200, magnetic field producer 300, arc
Coil 400, mounting platform 500, installation sleeve 600, pedestal 700.The plug 100 is connected to the front end of sleeve 200.Installation set
The both ends of cylinder 600 are installed on two arc coils 400 by the mounting platform 500 respectively.In the present embodiment, in the base
4 magnetic field producers 300 are provided with seat, two are one group, and every group of magnetic field producer 300 coordinates with an arc coil 400,
Arc coil 400 is floated to be arranged in the Lorentz force action passage of the formation of magnetic field producer 300.
As shown in Fig. 2, magnetic field producer 300 includes first party coil 301, soft iron back segment 302, soft iron seat back segment 303, the
Two pressure strips 304, second party coil 305, the first pressure strip 306, soft iron seat leading portion 307, soft iron leading portion 308.The First Line
301 and second coil 305 of circle is installed on soft iron back segment 302.Soft iron leading portion 308, soft iron back segment 302 are respectively arranged in soft iron seat
On leading portion 307, soft iron seat back segment 303, and it is fixed by the first pressure strip 306, the second pressure strip 304 in soft iron seat
Leading portion 307, soft iron seat back segment 303 groove in.By coil switch power, produced between soft iron leading portion 308 and soft iron back segment 302 strong
Magnetic field.
Arc coil 400 is overall structure, including coil cover board 401, magazine 402, yawing control coil
403rd, pitching moment control coil 404.As shown in figure 3, U-lag is distributed with magazine 402, yawing control coil
403 and pitching moment control coil 404 be embedded in as shown in figure in the U-type groove of magazine 402, coil cover board 401 is installed on line
It is used to protect the conducting wire in U-lag on ring box frame 402.
Arc coil 400 is installed on the both ends of sleeve 200,403 He of yawing control coil by way of column cooperation
The intersection point of pitching moment control coil 404 is located at the centre position in 302 gap of soft iron leading portion 308 and soft iron back segment.
As shown in Figures 4 and 5, the mounting platform 500 is overall structure, wherein projection section 501 and arc coil 400
Groove 405 coordinates, then using level meter by 502 leveling of planar section of mounting platform 500.
During experiment, yawing control coil 403 and pitching moment control coil 404 are passed through electric current, produced in magnetic field
It is subject to power load under the action of 300 high-intensity magnetic field of device, and by this load transmission to sleeve 200.
Plug 100 combines to form adjuster sports calibration frame with sleeve 200.Drive of the sports calibration frame in vibration exciter
Lower generation pitch vibration or yaw oscillation, arc coil 400 can be in the soft iron leading portion 308 and soft iron of magnetic field producer 300 at this time
Movement in the spherical space that 302 paper of back segment is formed, strong magnetic can be formed after the first and second coils energization of magnetic field producer 300
, arc coil 400 be powered after magnetic field producer 300 formed high-intensity magnetic field in athletic meeting produce Lorentz force, the power with
The change in sports calibration frame movement velocity and direction and change so as to forming the dynamic loading of alternation, therefore can realize for balance
Dynamic calibration.
The presently disclosed embodiments is described above, described above is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes will be apparent from for the those of ordinary skill in art field.The selection of term used herein, purport
Best explaining the principle of each embodiment, practical application or to the technological improvement in market, or make the art its
Its those of ordinary skill is understood that each embodiment disclosed herein.
Claims (10)
1. one kind forces dynamic derivative balance dynamic corrector, it is characterised in that including：
Pedestal；
Two arc coils；
Installation sleeve and mounting platform, the both ends of the installation sleeve are respectively installed on two arc coils；
Multiple magnetic field producers, are arranged on the pedestal, and the arc coil is floated to be arranged on the magnetic field producer shape
Into Lorentz force action passage in.
2. according to claim 1 force dynamic derivative balance dynamic corrector, it is characterised in that further comprise sleeve,
It is connected to by installation sleeve on the arc coil, it is internal by connecting cone and dynamic scale, elastic hinge, strut and vibration
Vibrator links together.
3. according to claim 1 force dynamic derivative balance dynamic corrector, it is characterised in that the magnetic field producer bag
Include first coil, the second coil, soft iron back segment, soft iron seat back segment, soft iron leading portion, soft iron seat leading portion；
The first coil and the second coil are installed on the soft iron back segment；
The soft iron leading portion, soft iron back segment are respectively arranged in the soft iron seat leading portion, on soft iron seat back segment；
Soft iron seat leading portion and soft iron the seat back segment is arranged on the pedestal.
4. according to claim 3 force dynamic derivative balance dynamic corrector, it is characterised in that further comprises the first pressure
Tight plate and the second pressure strip, the soft iron leading portion, soft iron back segment are compressed by first pressure strip and the second pressure strip respectively
It is fixed in the groove of the soft iron seat leading portion, soft iron seat back segment.
5. according to claim 1 force dynamic derivative balance dynamic corrector, it is characterised in that the magnetic field producer
Quantity is four, and two magnetic field producers are one group, are engaged with an arc coil.
6. according to claim 3 force dynamic derivative balance dynamic corrector, it is characterised in that the soft iron leading portion with it is soft
Iron back segment is oppositely arranged to form spherical space, and the arc coil is arranged on the sphere between the soft iron leading portion and soft iron back segment
Space.
7. according to claim 6 force dynamic derivative balance dynamic corrector, it is characterised in that the arc coil bag
Include：
Coil cover board and magazine, are distributed on the magazine fluted；
Yawing control coil and pitching moment control coil, are separately positioned in the groove of the magazine；
The coil cover board is installed on the magazine, for protecting the control coil in groove.
8. according to claim 7 force dynamic derivative balance dynamic corrector, it is characterised in that the yawing control
Centre position of the intersection point of coil and pitching moment control coil between soft iron leading portion and soft iron back segment.
9. according to claim 1 force dynamic derivative balance dynamic corrector, it is characterised in that the mounting platform includes
Projection section and planar section, the projection section and the fit depressions on arc coil, by the planar section after installation
Level-off.
10. according to claim 2 force dynamic derivative balance dynamic corrector, it is characterised in that further comprise plug,
The plug is connected to the front end of sleeve, and adjuster sports calibration frame is formed with the sleeve combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348428.5A CN107966266B (en) | 2017-12-15 | 2017-12-15 | Forced motion guide multi-day flat dynamic corrector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348428.5A CN107966266B (en) | 2017-12-15 | 2017-12-15 | Forced motion guide multi-day flat dynamic corrector |
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| Publication Number | Publication Date |
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| CN107966266A true CN107966266A (en) | 2018-04-27 |
| CN107966266B CN107966266B (en) | 2019-12-13 |
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| CN201711348428.5A Active CN107966266B (en) | 2017-12-15 | 2017-12-15 | Forced motion guide multi-day flat dynamic corrector |
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| CN112629813A (en) * | 2021-03-11 | 2021-04-09 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind-tunnel balance load calibration loading head |
| CN114248133A (en) * | 2022-01-07 | 2022-03-29 | 天津大学 | Follow-up support vibration suppression mechanism suitable for machining thin-walled parts with different thicknesses |
| CN116952524A (en) * | 2023-09-18 | 2023-10-27 | 中国航空工业集团公司沈阳空气动力研究所 | High-speed wind tunnel dynamic derivative test monitoring method, electronic equipment and storage medium |
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| CN107966266B (en) | 2019-12-13 |
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