CN105790632B - The caliberating device and method of piezoelectric actuator control voltage in Active Vibration Control of Flexible Beam - Google Patents
The caliberating device and method of piezoelectric actuator control voltage in Active Vibration Control of Flexible Beam Download PDFInfo
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- CN105790632B CN105790632B CN201510947519.5A CN201510947519A CN105790632B CN 105790632 B CN105790632 B CN 105790632B CN 201510947519 A CN201510947519 A CN 201510947519A CN 105790632 B CN105790632 B CN 105790632B
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
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- 238000005286 illumination Methods 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/06—Drive circuits; Control arrangements or methods
- H02N2/062—Small signal circuits; Means for controlling position or derived quantities, e.g. for removing hysteresis
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Abstract
The invention discloses a kind of caliberating device of piezoelectric actuator control voltage in Active Vibration Control of Flexible Beam, including flexible beam, piezoelectric actuator, camera lens and camera；Flexible beam is fixed on pedestal by fastener, and piezoelectric actuator is pasted onto on flexible beam, and camera is fixed on bearing by support member, and the front end of camera is equipped with camera lens；When piezoelectric actuator inputs control voltage, by camera by camera lens in real time obtain apply control voltage after piezoelectric actuator deformation pattern, and image is delivered in computer, the telescopic variation of piezoelectric actuator when applying different voltages is calculated according to image by computer, so as to piezoelectric actuator control voltage in realizing and the demarcation of flexible magnitude relation；Also disclose a kind of scaling method simultaneously；The present invention, which preferably resolves, realizes piezoelectric actuator control voltage under concrete application environment and the demarcation of flexible magnitude relation in Active Vibration Control of Flexible Beam research, have stable performance, and precision is higher, automaticity height, it is applied widely the advantages that.
Description
Technical field
The present invention relates to the caliberating device and method of piezoelectric actuator control voltage in a kind of Active Vibration Control of Flexible Beam,
Belong to flexible mechanical active control in structural vibration technical field.
Background technology
It is on the one hand lightweight and flexible member for engineering structure with the development of national economy and the needs of defense technology
Extensive application in the structure, on the other hand it is the requirement run to structure high-speed and in high precision.
After structural flexibility, vibration is also easy to produce in the process of its motion, has very big influence to the dynamic characteristic of system.
Therefore, carrying out Study on Active Vibration Control for this typical flexible structure of flexible cantilever beam has important Practical Project should
With value, the research of the problem has obtained the extensive concern of numerous scholars in recent decades.
The advantages that piezoelectric actuator has a small volume, light weight, and frequency response is wide, fast response time, in various intelligence structures
It is widely used in Vibration Active Control.After piezoelectric actuator is pasted onto on flexible beam, usually gives tacit consent to piezoelectricity and make
Dynamic device is the relevant parameter for meeting product, goes to demarcate this concrete application environment lower piezoelectric work currently without a kind of effective means
Relation between the input voltage and its axial stretching of dynamic device.For between the input voltage of piezoelectric actuator and its axial stretching
Relation the measurement of size can be realized with slide measure class instrument, but the method speed is slow by giving a voltage, from
Dynamicization degree and precision are relatively low.
Therefore, needing the higher method of a kind of simple, feasible, precision and automaticity badly realizes that piezoelectric actuator is pasted onto
Relation between its control voltage and axial stretching is demarcated after on flexible beam, so as to for flexible beam Active Vibration Control provide according to
According to.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides piezoelectric actuating in a kind of Active Vibration Control of Flexible Beam
The caliberating device and method of device control voltage, non-contact, simple, accurate it can realize demarcation piezoelectric actuator control voltage and its
Relation between axial stretching, and then provide foundation for the Active Vibration Control of flexible beam.
To achieve these goals, the technical solution adopted by the present invention is：Piezoelectricity in a kind of Active Vibration Control of Flexible Beam
The caliberating device of actuator control voltage, including：
Pedestal, piezo actor, camera lens, camera, bearing, flexible beam, video encoder, image pick-up card, calculator, mould
Analog quantity output card and voltage amplifier；
Described flexible beam is fixed on pedestal by fastener, and piezoelectric actuator is pasted onto on flexible beam, and camera passes through
Support member is fixed on bearing, and the front end of camera is equipped with camera lens；
Wherein, analog output unit output control voltage signal on computers is connected, after voltage amplifier amplifies
It is applied on piezoelectric actuator；
By camera by camera lens in real time obtain apply control voltage after piezoelectric actuator deformation pattern, pass through video encoder
After processing by image pick-up card by image information collecting into computer, by computer calculate apply different voltages when piezoelectricity make
The telescopic variation of dynamic device.
The center of the camera lens of described camera front end and the center of piezoelectric actuator are point-blank, accurate to ensure
Property.
The support member of described camera can realize the position adjustments of its vertical direction on support base by adjusting knob.
Enough intensities of illumination are provided to obtain apparent figure for camera equipped with annular light source in the front end of the camera lens
Picture.
The invention also discloses a kind of scaling method of piezoelectric actuator control voltage in Active Vibration Control of Flexible Beam, its
Specific method and step is as follows：
1）Initial setting up：
Piezoelectric actuator center on flexible beam is arranged on a center line with optical center, camera initial parameter is set
Put；
2）IMAQ：
After control voltage is applied to piezoelectric actuator, IMAQ is carried out to it by camera；
3）Intercept piezoelectric actuator subgraph：
The subgraph for the piezoelectric actuator to be detected is intercepted out in the image photographed by computer from camera；
4）Colored subgraph gray processing and binaryzation；
5）Piezoelectric actuator binary image length computation：Pressed when being calculated by the image after binaryzation and applied different voltages
The collapsing length of motor-driven cylinder；
6）Draw the relation of voltage and piezoelectric actuator magnification：Piezoelectric actuator input voltage is drawn with stretching by computer
Relation curve between the change of contracting amount, completes demarcation, foundation is provided for the Active Vibration Control of flexible beam.
The dilatation of piezoelectric actuator is converted into image by the present invention, passes through the image acquired in computer disposal, energy
Enough realize it is non-contact, be accurately detected deformation size of the piezoelectric actuator under input voltage, so as to calibrate piezoelectric actuator
Control voltage and its axial stretching between relation, so as to for the Active Vibration Control of flexible beam provide foundation；This method has
The scope of application compared with it is wide, cost is relatively low, implementations is simple, stable performance, easily realization automates the advantages that.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the flexible schematic diagram of piezoelectric actuator after application of a voltage in the present invention；
Fig. 3 is the method process chart that the present invention collects piezoelectric actuator image.
In figure：1st, pedestal, 2, fastener, 3, piezoelectric actuator, 4, annular light source, 5, camera lens, 6, camera, 7, regulation rotation
Button, 8, bearing, 9, flexible beam, 10, support member, 11, video encoder, 12, image pick-up card, 13, computer, 14, analog quantity
Output card, 15, voltage amplifier.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Wherein, for the present invention on the basis of accompanying drawing 1, the left and right, upper and lower of accompanying drawing 1, bottom, center, end, root are this hair
Bright left and right, upper and lower, bottom, center, end, root.It should be noted that：Unless specifically stated otherwise, otherwise this implementation
The positioned opposite of part that is illustrated in example, numerical value etc. are not limited to the scope of the present invention.
It is a kind of caliberating device of piezoelectric actuator control voltage in Active Vibration Control of Flexible Beam as shown in Figure 1, including：
Pedestal 1, piezo actor 3, camera lens 5, camera 6, bearing 8, flexible beam 9, video encoder 11, image pick-up card
12nd, calculator 13, analog output unit 14 and voltage amplifier 15；
Described flexible beam 9 is fixed on pedestal 1 by fastener 2, and piezoelectric actuator 3 is pasted onto on flexible beam 9, camera
6 are fixed on bearing 8 by support member 10, and the front end of camera 6 is equipped with camera lens 5；
Wherein, the output control voltage signal of analog output unit 14 being connected on computer 13, through voltage amplifier 15
Amplify after-applied on piezoelectric actuator 3；
By camera 6 by the deformation pattern of piezoelectric actuator 3 after the control voltage of acquisition application in real time of camera lens 5, compiled by video
Code device 11 handle after by image pick-up card 12 by image information collecting into computer 13, it is different that application is calculated by computer 13
The telescopic variation of piezoelectric actuator 3 during voltage.
Wherein, the center of the camera lens 5 of the front end of camera 6 and the center of piezoelectric actuator 3 are point-blank, accurate to ensure
Property.
As shown in figure 1, the support member 10 of camera 6 can realize its vertical direction on support base 8 by adjusting knob 7
Position adjustments.
Further, in order to obtain apparent image, provided in the front end of the camera lens 5 equipped with annular light source 4 for camera 6
Enough intensities of illumination.
As shown in Figure 2：Piezoelectric actuator 3 is pasted onto on flexible beam 9, and initial length isl；When applying positive voltage, piezoelectricity
Actuator 3 will produce axial elongation, and length is changed intol 2；When applying negative voltage, generation is compressed axially by piezoelectric actuator 3,
Length is changed intol 1。
Therefore, in Active Vibration Control of Flexible Beam research, it can be obtained by the IMAQ to piezoelectric actuator 3
Actual (tube) length angle value after input voltage, then calibrate input voltage and its axle after piezoelectric actuator 3 is pasted onto on flexible beam 9
Relation between stretching.
As shown in Figure 3：The invention also discloses utilize piezoelectric actuator control electricity in a kind of Active Vibration Control of Flexible Beam
The scaling method that the caliberating device of pressure is carried out, specific method and step are as follows：
1）Initial setting up：
The center of piezoelectric actuator 3 on flexible beam 9 and camera lens 5 are centrally disposed on a center line, the initial parameter of camera 6
Set；
2）IMAQ：
After voltage is applied to piezoelectric actuator 3, IMAQ is carried out to it by camera 6；
3）Intercept piezoelectric actuator subgraph：
The subgraph for the piezoelectric actuator 3 to be detected is intercepted out in the image photographed by computer 13 from camera 6；
4）Colored subgraph gray processing and binaryzation；
5）Piezoelectric actuator binary image length computation：Pressed when being calculated by the image after binaryzation and applied different voltages
The collapsing length of motor-driven cylinder 3；
6）Draw the relation of voltage and piezoelectric actuator magnification：The input voltage of piezoelectric actuator 3 is drawn by computer 13
Relation curve between changing with stroke, completes demarcation, foundation is provided for the Active Vibration Control of flexible beam.
In summary：The dilatation of piezoelectric actuator 3 is converted into image by the present invention, is handled and is obtained by computer 13
The image taken, can realize it is non-contact, be accurately detected deformation size of the piezoelectric actuator 3 under input voltage, so as to demarcate
Go out relation between the control voltage of piezoelectric actuator 3 and its axial stretching, so as to for flexible beam 9 Active Vibration Control provide according to
According to；This method have the advantages that the scope of application compared with it is wide, cost is relatively low, implementations is simple, stable performance, easily realization automate.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Described above, only presently preferred embodiments of the present invention is not intended to limit the invention, every skill according to the present invention
Any trickle amendment, equivalent substitution and the improvement that art is substantially made to above example, should be included in technical solution of the present invention
Protection domain within.
Claims (4)
- A kind of 1. caliberating device of piezoelectric actuator control voltage in Active Vibration Control of Flexible Beam, it is characterised in that including：Pedestal（1）, piezo actor（3）, camera lens（5）, camera（6）, bearing（8）, flexible beam（9）, video encoder（11）, figure As capture card（12）, calculator（13）, analog output unit（14）And voltage amplifier（15）；Described flexible beam（9）Pass through fastener（2）It is fixed on pedestal（1）On, piezoelectric actuator（3）It is pasted onto flexible beam（9） On, camera（6）Pass through support member（10）It is fixed on bearing（8）On, camera（6）Front end camera lens is housed（5）；Wherein, it is connected to computer（13）On analog output unit（14）Output control voltage signal, through voltage amplifier （15）Amplify after-applied in piezoelectric actuator（3）On；By camera（6）Pass through camera lens（5）Acquisition applies piezoelectric actuator after control voltage in real time（3）Deformation pattern, pass through video Encoder（11）By image pick-up card after processing（12）By image information collecting to computer（13）In, by computer（13）Calculate Piezoelectric actuator when going out to apply different voltages（3）Telescopic variation；Described camera（6）The camera lens of front end（5）Center and piezoelectric actuator（3）Center point-blank, with ensure Accuracy.
- 2. the demarcation dress of piezoelectric actuator control voltage in a kind of Active Vibration Control of Flexible Beam according to claim 1 Put, it is characterised in that described camera（6）Support member（10）Adjusting knob can be passed through（7）Realize it in support base（8）On The position adjustments of vertical direction.
- 3. the demarcation of piezoelectric actuator control voltage in a kind of Active Vibration Control of Flexible Beam according to claim 1 or 2 Device, it is characterised in that in the camera lens（5）Front end annular light source is housed（4）For camera（6）Enough intensities of illumination are provided To obtain apparent image.
- A kind of 4. scaling method of piezoelectric actuator control voltage in Active Vibration Control of Flexible Beam, it is characterised in that specific side Method step is as follows：1）Initial setting up：By flexible beam（9）Upper piezoelectric actuator（3）Center and camera lens（5）It is centrally disposed on a center line, camera（6）Initially Parameter setting；2）IMAQ：To piezoelectric actuator（3）After applying control voltage, pass through camera（6）IMAQ is carried out to it；3）Intercept piezoelectric actuator subgraph：By computer（13）From camera（6）The piezoelectric actuator to be detected is intercepted out in the image photographed（3）Subgraph；4）Colored subgraph gray processing and binaryzation；5）Piezoelectric actuator binary image length computation：Piezoelectricity when applying different voltages is calculated by the image after binaryzation to make Dynamic device（3）Collapsing length；6）Draw the relation of voltage and piezoelectric actuator magnification：By computer（13）Draw piezoelectric actuator（3）Input voltage Relation curve between changing with stroke, completes demarcation, foundation is provided for the Active Vibration Control of flexible beam.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1469183A1 (en) * | 2003-04-15 | 2004-10-20 | Renault s.a.s. | Control device for an ultrasonic piezoelectric actuator and operation method thereof |
| CN102322938A (en) * | 2011-08-22 | 2012-01-18 | 华南理工大学 | Visual measuring device for vibration of piezoelectric flexible board structure and control method |
| CN102501242A (en) * | 2011-09-28 | 2012-06-20 | 华南理工大学 | Three-degree-of-freedom flexible manipulator control device and method |
| CN204334380U (en) * | 2015-01-29 | 2015-05-13 | 哈尔滨理工大学 | Based on the piezoelectric ceramic Micro-displacement Driving power supply of PSD closed-loop control |
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| US7755251B2 (en) * | 2007-09-12 | 2010-07-13 | Canon Kabushiki Kaisha | Control apparatus and control method for vibration wave driven apparatus |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1469183A1 (en) * | 2003-04-15 | 2004-10-20 | Renault s.a.s. | Control device for an ultrasonic piezoelectric actuator and operation method thereof |
| CN102322938A (en) * | 2011-08-22 | 2012-01-18 | 华南理工大学 | Visual measuring device for vibration of piezoelectric flexible board structure and control method |
| CN102501242A (en) * | 2011-09-28 | 2012-06-20 | 华南理工大学 | Three-degree-of-freedom flexible manipulator control device and method |
| CN204334380U (en) * | 2015-01-29 | 2015-05-13 | 哈尔滨理工大学 | Based on the piezoelectric ceramic Micro-displacement Driving power supply of PSD closed-loop control |
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