CN108709625A - It is double to spread out solar wing vibration measurement device and method - Google Patents
It is double to spread out solar wing vibration measurement device and method Download PDFInfo
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- CN108709625A CN108709625A CN201810658122.8A CN201810658122A CN108709625A CN 108709625 A CN108709625 A CN 108709625A CN 201810658122 A CN201810658122 A CN 201810658122A CN 108709625 A CN108709625 A CN 108709625A
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a kind of pair to spread out solar wing vibration measurement device and method, described device spreads out solar wing including double, vibrational excitation mechanism and vibration detection mechanism, vibrational excitation mechanism spreads out solar wing and connect with double, for encouraging double solar wings that spread out to generate vibration, vibration detection mechanism includes two groups of binocular vision systems and two truss, it is arranged in parallel before and after two truss, two groups of binocular vision systems and two truss correspond, and every group of binocular vision system is arranged on corresponding truss, two groups of binocular vision systems for detect it is double spread out solar wing before, the vibration detection index point region of rear upper surface.The present invention is by the setting of two groups of binocular vision systems before and after two on truss disposed in parallel, the vibration detection index point region of double front and rear portions upper surfaces for spreading out solar wing is detected using two groups of binocular vision systems, non-contact measurement can be carried out to double solar wings that spread out, obtain double spreading out the more accurate vibration information of solar wing.
Description
Technical field
The present invention relates to a kind of vibration measurement device, especially a kind of pairs to spread out solar wing vibration measurement device and method,
Belong to vibration measurement field.
Background technology
In recent years, the complexity for the task that spacecraft is undertaken is continuously increased, and requirement of the people to its structure is higher and higher,
On the one hand it requires to improve bearing capacity, on the one hand requires the gross mass for reducing structure, therefore, spacecraft is towards Low rigidity, flexibility
Change, the trend development of enlargement, the big flexible big feature for becoming modern spacecraft.Flexible structure is widely present in spacecraft
In, such as the solar energy sailboard structure of satellite or space work station, space flight wing, space station flexible mechanical arm, large-scale paraboloid day
Line etc., from its structure feature, the spacecraft with flexible structure can be divided into three classes：All kinds of large-scale flexible accessory class boats of Rigid Base band
Its device, Rigid Base band large size composite flexible structure accessory class spacecraft, Grazing condition structure class spacecraft.These flexible structures
Space scale is bigger, is made up to tens meters of even rice up to a hundred, small using density, Low rigidity materials, has large deflection, non-
Linearly, small damping, modal frequency be low and the physical characteristics such as intensive.
Currently, the most of of output are accounted for by the monocrystalline silicon of substrate and polysilicon solar cell of glass hard material,
But the high energy consumption due to itself manufacturing process keeps the cost of electricity-generating of this kind of battery higher with high vacuum condition, and it is easy
Broken, bad and the features such as being bent, limits certain application scenarios.Thin-film solar cells belongs to solar cell of new generation, presses
It can be divided into hard substrate and flexible substrate two major classes according to the type of substrate.Flexible substrate film solar cell refers in flexible material
The thin-film solar cells of upper making.The research of new inorganic and organic solar material, the spy of novel solar battery structure
Rope, roll-to-roll print production technique and ink jet printing provide possibility to reduce flexible thin-film solar cell cost.
Non-contact measurement compares traditional sensor contact measurement and has many good qualities.Non-contact measurement does not interfere with
The dynamic property of measurand will not influence its normal work because of on testee additional mass, to measurand without
Damage and strong antijamming capability.But the precision of non-contact measurement is generally lower than contact type measurement.Non-contact measurement is
A kind of simple and effective vibration measuring method, common are the methods of laser vibration measurer, laser sensor, binocular vision system,
In, the binocular vision system vibration measuring method that is made of two high speed cameras with image procossing and analytical technology mature,
Increasingly become a kind of simple and convenient vibration measuring method with very high use value.It is a kind of multiple spot that high speed camera, which measures vibration,
Measurement method, compared to the method for the spot measurement of some, high speed camera measures vibration and is measuring the Mode variation of multiple points
When have prodigious advantage, as long as the resolution ratio of high speed camera and filming frequency are sufficiently high, the range of shooting is sufficiently large, only need
To make several upper mark points inside tested range, it can accurately measure the vibration of multiple points inside a range, obtain
The modal information of multiple points is taken, finally, binocular vision system can decouple the multi-modes of the vibration of testee, can
Complicated multi-modes to be reduced to the superposition of multiple first-order modals, the information of vibration is more intuitively showed.
Invention content
The purpose of the present invention is to solve the defects of the above-mentioned prior art, provide a kind of pair and spread out solar wing vibration survey
Measure device, which on truss disposed in parallel, utilizes two groups of binocular visions before and after two by the setting of two groups of binocular vision systems
Feel system is detected the vibration detection index point region of double front and rear portions upper surfaces for spreading out solar wing, can be spread out to double
Solar wing carries out non-contact measurement, obtains double spreading out the more accurate vibration information of solar wing.
Another object of the present invention is to provide a kind of based on above-mentioned apparatus double spreads out solar wing vibration measurement method.
The purpose of the present invention can be reached by adopting the following technical scheme that：
It is double to spread out solar wing vibration measurement device, including it is double spread out solar wing, vibrational excitation mechanism and vibration detection mechanism,
The vibrational excitation mechanism spreads out solar wing and connect with double, for encourage it is double spread out solar wings and generate vibrate, the vibration detection
Mechanism includes two groups of binocular vision systems and two truss, is arranged in parallel before and after described two truss, two groups of binocular visions
System and two truss correspond, and every group of binocular vision system is arranged on corresponding truss, two groups of binocular vision systems
Vibration detection index point region for detecting double front and rear portions upper surfaces for spreading out solar wing.
Further, it includes coiling unfolded part, English truss, fixed component, uncoiling portion that described pair, which spreads out solar wing,
Part and two panels solar battery thin film, the coiling unfolded part are arranged in the middle part of fixed component, and the one of the English truss
End is connect with coiling unfolded part, and the other end of English truss and the middle part of unwinding mem-ber connect, two panels solar battery thin
Film is symmetricly set on the right and left of English truss, and the both ends of two panels solar battery thin film respectively with fixed component, uncoiling
Component connects, and the middle part of the vibrational excitation mechanism and unwinding mem-ber connects.
Further, described device further includes support platform and ground backing plate, and described pair spreads out solar wing and support platform
Surface keeping parallelism relationship, the fixed component is fixed on by two vertical square bars in support platform, described two truss
It is fixed on the inside of support platform by corner fittings respectively, the unwinding mem-ber is fixed on by two vertical square bars on the backing plate of ground.
Further, the support platform includes substrate and four support legs, and the fixed component passes through two vertical bars
It is fixed on the upper surface of substrate, described two truss are fixed on by corner fittings on the inside of substrate respectively, four support legs and base
The lower surface of plate is fixedly connected.
Further, every group of binocular vision system includes two high speed cameras, a laser, a guide rail, three cunnings
Block and two holders, the guide rail are fixed on corresponding truss, and three sliding blocks are slidably arranged on guide rail, described two
High speed camera, two holders and two of which sliding block are to correspond, and every high speed camera is arranged on corresponding holder, often
A holder is fixed on corresponding sliding block, and the laser is fixed on another sliding block, and between two high speed cameras；
In one of which binocular vision system, the double front medial locations for spreading out solar wing of emission port alignment of laser,
For vibration detection index point to be projected double front upper surfaces for spreading out solar wing, the double pavings of alignment lens of two high speed cameras
Open the vibration detection index point region of the front upper surface of solar wing；
In another group of binocular vision system, the double rear portion centre positions for spreading out solar wing of emission port alignment of laser are used
In vibration detection index point is projected double rear upper surfaces for spreading out solar wing, the alignment lens of two high speed cameras are double to be spread out
The vibration detection index point region of the rear upper surface of solar wing.
Further, in every group of binocular vision system, the horizontal distance between two high speed cameras is 400mm, and
The camera lens of two high speed cameras is 800mm~1000mm with double the distance between solar wing upper surfaces that spread out.
Further, each truss includes a horizon bar and two vertical bars, and the both ends of the horizon bar are respectively with two
One end of root vertical bar connects, and the other end of two vertical bars is fixed.
Further, the vibrational excitation mechanism includes vibrator and signal processing module, and the vibrator is spread out with double
Solar wing connects, and the signal processing module is connect with vibrator.
Further, the signal processing module includes signal generator and power amplifier, the signal generator, work(
Rate amplifier and vibrator are sequentially connected.
Another object of the present invention can be reached by adopting the following technical scheme that：
Vibration measurement method based on above-mentioned apparatus, the method includes：
The laser of two groups of binocular vision systems spreads out solar wing transmitting laser against double, and vibration detection index point is projected
To double front and rear portions upper surfaces for spreading out solar wing；
The signal generator of vibrational excitation mechanism sends out vibration signal, and vibrator is sent to after power amplifier amplifies；
Vibrator generates vibration, the double vibrations for spreading out solar wing and generating different frequency of excitation after receiving signal；
It is double spread out solar wing vibration during, spread out solar wing to double by the high speed camera of two groups of binocular vision systems
Front and rear portions upper surface vibration detection index point region synchronize high frequency shooting, collect image sequence, be sent to calculating
Machine；
Computer reads the image that takes of high speed camera of two groups of binocular vision systems, to two groups of binocular vision systems
High speed camera is demarcated, and the coordinate of image spot feature calculation laser point is extracted, and is further processed to obtain and double is spread out solar wing
Vibration information, and carry out visualization processing, result be presented over the display.
The present invention has following advantageous effect compared with the existing technology：
1, present invention employs two groups of binocular vision systems, and parallel before and after two set is arranged in two groups of binocular vision systems
On the truss set, vibration is generated by the double solar wings that spread out of vibrational excitation mechanism incitation, it is right under the premise of without additive effect
Double solar wings that spread out carry out contactless vibration measurement, thus measure the double of acquisition and spread out solar wing vibration information precision relatively
It is high.
2, fixed component is fixed in support platform by the present invention by two vertical square bars, and passes through two vertical sides
Unwinding mem-ber is fixed on the backing plate of ground by bar so that solar battery thin film is in the state of tensioning, to make double spread out too
The positive wing is stablized in gravitational field.
3, two truss are fixed on by corner fittings on the inside of support platform by the present invention respectively, by controlling the elastic of corner fittings,
The distance between horizon bar and the support platform surface of truss can be adjusted, that is, the height of truss is adjusted, so as to adjust binocular vision
The shooting height of feel system.
4, two groups of binocular vision systems of the invention are respectively provided with two high speed cameras and a laser, and laser can incite somebody to action
Vibration detection index point project it is double spread out solar wing upper surface, two high speed cameras, which can be shot, double spreads out solar wing upper surface
Vibration detection index point region can adjust two high speed cameras and a laser by three sliding blocks on moving guide rail
The horizontal position of device, to change the position relationship between two high speed cameras, every high speed camera is arranged in corresponding holder
On, high speed camera can be changed by holder and spread out solar wing due to double with the angle for shooting surface to realize multimetering
Volume it is larger, double solar wings that spread out are detected using multimetering mode, can be to double multistage moulds for spreading out solar wing
State coupled vibrations is decoupled, the accurate double Vibration Conditions for spreading out solar wing of reduction.
5, the binocular vision system that uses of the present invention can with horizontal displacement, can also vertical displacement, and height can be adjusted
The shooting angle of fast camera is conducive to the calibration of camera and different shape and size of double vibration measurements for spreading out solar wing, obtains
Obtain more accurate double vibration characteristics for spreading out solar wing.
Description of the drawings
Fig. 1 is that the double of the embodiment of the present invention 1 spread out solar wing vibration measurement device general structure schematic diagram.
Fig. 2 is double front views for spreading out solar wing vibration measurement device of the embodiment of the present invention 1.
Fig. 3 is double vertical views for spreading out solar wing vibration measurement device of the embodiment of the present invention 1.
Fig. 4 is double right views for spreading out solar wing vibration measurement device of the embodiment of the present invention 1.
Fig. 5 is the schematic diagram of the one of which binocular vision system of the vibration detection mechanism of the embodiment of the present invention 1.
Wherein, 1- coilings unfolded part, 2- English trusses, 3- fixed components, 4- unwinding mem-bers, the first solar-electricities of 5-
Pond film, the second solar battery thin films of 6-, 7- support platforms, 701- substrates, 702- support legs, the ground 8- backing plate, 9- first
Vertical square bar, the second vertical square bars of 10-, 11- vibrators, 12- signal generators, 13- power amplifiers, 14- mandrils, the purlins 15-
Frame, the first high speed cameras of 16-, the second high speed cameras of 17-, 18- lasers, 19- guide rails, the first sliding blocks of 20-, the second sliding blocks of 21-,
22- third sliding blocks, the first holders of 23-, the second holders of 24-, 25- computers.
Specific implementation mode
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment 1：
As shown in Figure 1 to 4, it present embodiments provides a kind of pair and spreads out solar wing vibration measurement device, which includes
Double to spread out solar wing, vibrational excitation mechanism and vibration detection mechanism, the dotted line in Fig. 1 indicates the pass of the line between each equipment
System, direction arrow show the direction of transfer for detecting and controlling signal stream.
Double solar wing that spreads out is flexible structure comprising coiling unfolded part 1, English truss 2, fixed component 3,
Unwinding mem-ber 4, the first solar battery thin film 5 and the second solar battery thin film 6, fixed component 3 and unwinding mem-ber 4 are made respectively
For double front and rear ends for spreading out solar wing, the setting of coiling unfolded part 1 is in 3 middle part of fixed component, one end of English truss 2
It is connect with coiling unfolded part 1, the other end of English truss 2 is connect with the middle part of unwinding mem-ber 4, the first solar battery thin
Film 5 and the second solar battery thin film 6 are symmetricly set on the right and left of English truss 2, and the two of the first solar battery thin film 5
End connect with the left part of the left part of fixed component 3, unwinding mem-ber 4 respectively, the both ends of the second solar battery thin film 6 respectively with consolidate
Determine the right part connection of the right part, unwinding mem-ber 4 of component 3.
Double solar wings that spread out are in gravitational field, and since the rigidity of English truss 2 is inadequate, in order to stablize, support is double to be spread out too
Double solar wing vibration measurement devices that spread out of the positive wing, the present embodiment further include support platform 7 and ground backing plate 8, double to spread out the sun
The surface keeping parallelism relationship of the wing and support platform 7, fixed component 3 are fixed on support platform 7 by two first vertical square bars 9
On, unwinding mem-ber 4 is fixed on by two second vertical square bars 10 on ground backing plate 8, specifically, first passes through screw-nut by two
One end of the first vertical square bar 9 of root is fixed in support platform 7, and by screw-nut by two second vertical square bars 10
One end is fixed on ground backing plate 8, then by two right angle support plates by the other end and fixed part of two first vertical square bars 9
Part 3 is fixedly connected, and is fixed the other end of two second vertical square bars 10 and unwinding mem-ber 4 by two right angle support plates and connected
It connects, spreads out solar wing so that support is double so that the first solar battery thin film 5 and the second solar battery thin film 6 are in tensioning
State.
Further, the support platform 7 includes substrate 701 and support leg 702, and fixed component 3 is perpendicular by two first
Straight-bar 9 is fixed on the upper surface of substrate 701, and four support legs 702 are fixedly connected with the lower surface of substrate 701, can both improve
Support platform 7 support it is double spread out the stability of solar wing, and the material of support platform 7 can be saved, reduce the system of support platform 7
Make cost.
In the present embodiment, support platform 7 is assembled by the aluminium section bar that three kinds of length are respectively 2000mm, 1400mm, 500mm
It forms, substrate 701 is the stainless steel plate of one piece of 2120mm × 1520mm × 8mm, and substrate 701 is connect by screw with proximate matter, type
Each junction of material has angle bar to fix；Double full-sizes for spreading out solar wing are 2870mm × 1150mm, 2 He of English truss
For fixed component 3 by aluminium as material, the first solar battery thin film 5 and the second solar battery thin film 6 are amorphous silicon battery
Film；Plastic material stick can be selected in unwinding mem-ber 4, has certain elasticity.
The vibrational excitation mechanism is for encouraging double solar wings that spread out to generate vibration comprising signal processing module and exciting
Device 11, signal processing module include signal generator 12 and power amplifier 13, signal generator 12, power amplifier 13 and are swashed
The device 11 that shakes is sequentially connected, and the vibrator 11 of the present embodiment is fixed on ground backing plate 8, and passes through mandril 14 and unwinding mem-ber 4
Middle part connects, and signal generator sends out vibration signal, and vibrator is sent to after the amplification of power amplifier 13, and vibrator 11 receives
Vibration is generated after signal, unwinding mem-ber 4 is driven by mandril 14, to encourage double solar wings that spread out to generate vibration, is sent out by changing
Raw signal generates different vibrations to detect and double spreads out vibration characteristics of the solar wing under different vibrational excitations.
In the present embodiment, vibrator 11 selects the vibrator of the model JZK-50 of GST companies of U.S. production, vibrator
11 maximum exciting force is 500N, and peak swing is ± 12.5mm, and peak acceleration 55g, maximum input current is 30Arms,
Frequency range is DC-2k, and appearance and size is Ф 240mm × 345mm, and the way of output is to transmit power to unwinding mem-ber 4 by mandril 14
On；Power amplifier 13 is using the power amplifier of the model 50WD1000 of AR companies of the U.S., working frequency DC-
1000MHz。
The vibration detection mechanism includes two groups of binocular vision systems and two truss 15, parallel before and after two truss 15 to set
It sets, two groups of binocular vision systems and two truss 15 correspond, and every group of binocular vision system is arranged in corresponding truss 15
On, that is to say, that two groups of binocular vision systems are respectively one group of front binocular vision system and rear set binocular vision system,
Before one group of front binocular vision system is for detecting the first solar battery thin film 5 and 6 upper surface of the second solar battery thin film
The vibration detection index point region in portion, rear set binocular vision system is for detecting the first solar battery thin film 5 and second
The vibration detection index point region at 6 upper surface rear portion of solar battery thin film.
Further, each truss 15 is made of aluminium section bar comprising a horizon bar and two vertical bars, horizon bar
Both ends are connect with one end of two vertical bars respectively, and the other end of two vertical bars is fixed on the inside of support platform 7, specifically
The both ends on ground, horizon bar are connect by corner fittings with one end of two vertical bars respectively, and the other end of two vertical bars passes through respectively
Corner fittings is fixed on the inside of substrate 701 of support platform 7, by controlling the elastic of corner fittings, can adjust the horizon bar of truss 15 with
The distance between 701 upper surface of substrate of support platform 7 adjusts the height of truss 15, so as to adjust binocular vision system
Shooting height.
As shown in fig. 1~fig. 5, every group of binocular vision system includes the first high speed camera 16, the second high speed camera 17, laser
Device 18, guide rail 19, the first sliding block 20, the second sliding block 21, third sliding block 22, the first holder 23 and the second holder 24, guide rail 19 are solid
It being scheduled on the horizon bar of corresponding truss 15, the first sliding block 20, the second sliding block 21 and third sliding block 22 are slidably arranged on guide rail 19,
That is the first sliding block 20, the second sliding block 21 and third sliding block 22 can move on rails 19, and third sliding block 22 is located at first and slides
Between block 20 and the second sliding block 21, the first high speed camera 16 is arranged on the first holder 23, and the setting of the second high speed camera 17 is the
On two holders 24, the first holder 23 is fixed on the first sliding block 20, and the second holder 24 is fixed on the second sliding block 21, laser 18
It is fixed on third sliding block 22, and between the first high speed camera 16 and the second high speed camera 17, passes through mobile first sliding block
20, the second sliding block 21 and third sliding block 22 can adjust the water of the first high speed camera 16, the second high speed camera 17 and laser 18
Prosposition is set, to change the position relationship between the first high speed camera 16 and the second high speed camera 17, by adjusting the first holder
23 and second holder 24, thus it is possible to vary the angle of the first high speed camera 16 and the second high speed camera 17 and shooting surface meets each
Double vibration detection needs for spreading out solar wing of kind shape size；The position of high speed camera should make it is double spread out solar wing it is static when examine
It surveys end face and is located substantially at high speed camera visual field centre position, it is double to spread out solar wing always when spreading out solar wing vibration so that guarantee is double
In field range in high speed camera, ensure the continuity measured, the optical axis of high speed camera and solar battery thin film
Face is vertical so that high speed camera being capable of front its solar battery thin film surface of shooting；The laser of two groups of binocular vision systems
Vibration detection index point is projected solar battery thin film upper surface by 18, generates the identical rectangular lattice of spacing, vibration detection
Indicate that size, spacing, color and the focal length of the point of dot matrix are adjustable, different size of detection body and not TongAn can be met
Fill the vibration detection requirement under height, and laser 18 can long time continuous working do not generate light decay phenomenon, and have relatively strong
At line effect, also possess anti-seismic performance, can reduce double spread out influences caused by solar wings vibration, two groups of binocular vision systems
Captured image splices because identifying, so former and later two laser dot-matrixes generated of the laser 18 of two groups of binocular vision systems
Color shape must have any different, and be conducive to more accurate image recognition and splicing.
Further, before in one group of binocular vision system, the alignment of the emission port of laser 18 is double spread out solar wing before
Portion centre position, the vibration detection mark of the 5 upper surface front of the first solar battery thin film of alignment lens of the first high speed camera 16
Will point region, the vibration detection mark of the 6 upper surface front of the second solar battery thin film of alignment lens of the second high speed camera 17
Point region；In rear set binocular vision system, the double rear portion centre positions for spreading out solar wing of emission port alignment of laser 18,
The vibration detection index point region at the 5 upper surface rear portion of the first solar battery thin film of alignment lens of the first high speed camera 16, the
The vibration detection index point region at the 6 upper surface rear portion of the second solar battery thin film of alignment lens of two high speed cameras 17；Two groups
In first high speed camera 16 of binocular vision system and the image transmitting to computer 25 of the second high speed camera 17 shooting.
Further, in every group of binocular vision system, the water between the first high speed camera 16 and the second high speed camera 17
Flat distance is 400mm, and the distance between the camera lens of the first high speed camera 16 and 5 upper surface of the first solar battery thin film are
800mm~1000mm, the distance between the camera lens of the second high speed camera 17 and 6 upper surface of the second solar battery thin film are also
800mm~1000mm.
In the present embodiment, the first high speed camera 16 and the second high speed camera 17 select wound connection in Wuhan to reach the limited public affairs of science and technology
The high speed camera of the model Memrecam HX-3E of department, possesses 5,000,000 pixels, and under the full resolution frame speed up to 2000
Frame/second, frame speed assigns 9220 frames/second up to 4670 frames/second, 1,000,000 pixels under full HD pixel, inside saves as 64GB, operating temperature
Ranging from 0-40 degrees Celsius, weight is about 5.9 kilograms, and the power supply needed is 100-240V AC-1.5A, 50-60Hz；Laser
18 select the model ZLM100MTX650-16GD lasers of Shenzhen Zhong Lai scientific & technical corporation, optical maser wavelength 650nm, output work
Rate is 100mW, operating current≤180mA, supply voltage DC2.8-5.2V, facular model, dot matrix, optical lens：Lenticular lenses (moral
State's import).
The present embodiment additionally provides a kind of pair and spreads out solar wing vibration measurement method, and this method is realized based on above-mentioned apparatus,
Include the following steps：
Step 1: the laser 18 of two groups of binocular vision systems spreads out solar wing transmitting laser against double, by vibration detection
Index point projects the front and rear portions upper surface of the first solar battery thin film 5 and the second solar battery thin film 6；
Step 2: signal generator 12 sends out vibration signal, vibrator 11 is sent to after the amplification of power amplifier 13；
Step 3: vibrator 11 is transmitted by mandril 14 in power to unwinding mem-ber 4, the double solar wings that spread out of excitation generate difference
The vibration of frequency；
Step 4: it is double spread out solar wing vibration during, by the first high speed camera 16 of two groups of binocular vision systems
High frequency shooting is synchronized to the vibration detection index point region of the front and rear portions upper surface of the first solar battery thin film 5, and
Vibration by the second high speed camera 17 of two groups of binocular vision systems to the front and rear portions upper surface of the second solar battery thin film 6
Detection index point region synchronizes high frequency shooting；
Step 5: first high speed camera 16 and the second high speed camera 17 of the two groups of binocular vision systems of reading of computer 25 are clapped
The image taken the photograph passes through first high speed camera 16 and the second high speed camera 17 of two groups of binocular vision systems of Zhang Zhengyou standardizations pair
It is demarcated, extracts the coordinate of image spot feature calculation laser point, be further processed to obtain double vibration letters for spreading out solar wing
Breath, and visualization processing is carried out, result is presented over the display.
In conclusion present invention employs two groups of binocular vision systems, two groups of binocular vision systems are arranged before two
Afterwards on truss disposed in parallel, vibration is generated by the double solar wings that spread out of vibrational excitation mechanism incitation, without additive effect
Under the premise of contactless vibration measurement is carried out to double solar wings that spread out, thus measure obtain double and spread out solar wing vibration information essence
It spends relatively high.
The above, patent preferred embodiment only of the present invention, but the protection domain of patent of the present invention is not limited to
This, any one skilled in the art is in the range disclosed in patent of the present invention, according to the skill of patent of the present invention
Art scheme and its inventive concept are subject to equivalent substitution or change, belong to the protection domain of patent of the present invention.
Claims (10)
1. pair spreading out solar wing vibration measurement device, it is characterised in that：Solar wing, vibrational excitation mechanism and vibration are spread out including double
Testing agency, the vibrational excitation mechanism spread out solar wing and connects with double, for encourage it is double spread out solar wings and generate vibrate, it is described
Vibration detection mechanism includes two groups of binocular vision systems and two truss, is arranged in parallel before and after described two truss, described two groups
Binocular vision system and two truss correspond, and every group of binocular vision system is arranged on corresponding truss, two groups of binoculars
Vision system is used to detect the vibration detection index point region of double front and rear portions upper surfaces for spreading out solar wing.
2. according to claim 1 pair spreads out solar wing vibration measurement device, it is characterised in that：Described pair spreads out solar wing
Including coiling unfolded part, English truss, fixed component, unwinding mem-ber and two panels solar battery thin film, the coiling
Unfolded part is arranged in the middle part of fixed component, and one end of the English truss is connect with coiling unfolded part, English truss
The middle part of the other end and unwinding mem-ber connects, and two panels solar battery thin film is symmetricly set on the right and left of English truss, and
The both ends of two panels solar battery thin film are connect with fixed component, unwinding mem-ber respectively, the vibrational excitation mechanism and uncoiling portion
The middle part of part connects.
3. according to claim 2 pair spreads out solar wing vibration measurement device, it is characterised in that：Described device further includes branch
Platform and ground backing plate, double surface keeping parallelism relationships for spreading out solar wing and support platform are supportted, the fixed component is led to
It crosses two vertical square bars to be fixed in support platform, described two truss are fixed on by corner fittings on the inside of support platform respectively, institute
Unwinding mem-ber is stated to be fixed on the backing plate of ground by two vertical square bars.
4. according to claim 3 pair spreads out solar wing vibration measurement device, it is characterised in that：The support platform includes
Substrate and four support legs, the fixed component are fixed on the upper surface of substrate, described two truss point by two vertical bars
It is not fixed on the inside of substrate by corner fittings, four support legs are fixedly connected with the lower surface of substrate.
5. spreading out solar wing vibration measurement device according to claim 1-4 any one of them is double, it is characterised in that：Every group of binocular
Vision system includes that two high speed cameras, a laser, a guide rail, three sliding blocks and two holders, the guide rail are fixed
On corresponding truss, three sliding blocks are slidably arranged on guide rail, two high speed cameras, two holders and wherein two
A sliding block is to correspond, and every high speed camera is arranged on corresponding holder, and each holder is fixed on corresponding sliding block,
The laser is fixed on another sliding block, and between two high speed cameras；
In one of which binocular vision system, the double front medial locations for spreading out solar wing of emission port alignment of laser are used for
Vibration detection index point is projected into double front upper surfaces for spreading out solar wing, the alignment lens of two high speed cameras are double to be spread out too
The vibration detection index point region of the front upper surface of the positive wing；
In another group of binocular vision system, the double rear portion centre positions for spreading out solar wing of emission port alignment of laser, being used for will
Vibration detection index point projects double rear upper surfaces for spreading out solar wing, and the alignment lens of two high speed cameras are double to spread out the sun
The vibration detection index point region of the rear upper surface of the wing.
6. according to claim 5 pair spreads out solar wing vibration measurement device, it is characterised in that：Every group of binocular vision
In system, the horizontal distance between two high speed cameras is 400mm, and the camera lens of two high speed cameras is spread out with double on solar wing
The distance between surface is 800mm~1000mm.
7. spreading out solar wing vibration measurement device according to claim 1-4 any one of them is double, it is characterised in that：Each truss
Including a horizon bar and two vertical bars, the both ends of the horizon bar are connect with one end of two vertical bars respectively, and two perpendicular
The other end of straight-bar is fixed.
8. spreading out solar wing vibration measurement device according to claim 1-4 any one of them is double, it is characterised in that：The vibration
Excitation mechanism includes vibrator and signal processing module, and the vibrator spreads out solar wing and connect with double, the signal processing mould
Block is connect with vibrator.
9. according to claim 8 pair spreads out solar wing vibration measurement device, it is characterised in that：The signal processing module
Including signal generator and power amplifier, the signal generator, power amplifier and vibrator are sequentially connected.
10. double based on any one of claim 1-9 described devices spread out solar wing vibration measurement method, it is characterised in that：Institute
The method of stating includes：
The laser of two groups of binocular vision systems spreads out solar wing transmitting laser against double, vibration detection index point is projected double
Spread out the front and rear portions upper surface of solar wing；
The signal generator of vibrational excitation mechanism sends out vibration signal, and vibrator is sent to after power amplifier amplifies；
Vibrator generates vibration, the double vibrations for spreading out solar wing and generating different frequency of excitation after receiving signal；
It is double spread out solar wing vibration during, by the high speed camera of two groups of binocular vision systems to double solar wings that spread out
The vibration detection index point region of front and rear portions upper surface synchronizes high frequency shooting, collects image sequence, is sent to calculating
Machine；
Computer reads the image that the high speed camera of two groups of binocular vision systems takes, to the high speed of two groups of binocular vision systems
Camera is demarcated, and the coordinate of image spot feature calculation laser point is extracted, and is further processed to obtain and double is spread out shaking for solar wing
Dynamic information, and visualization processing is carried out, result is presented over the display.
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| CN201810658122.8A CN108709625B (en) | 2018-06-25 | 2018-06-25 | Double-spreading solar wing vibration measuring device and method |
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| CN201810658122.8A CN108709625B (en) | 2018-06-25 | 2018-06-25 | Double-spreading solar wing vibration measuring device and method |
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| CN110579326A (en) * | 2019-09-25 | 2019-12-17 | 华南理工大学 | Vibration detection device and method for multi-rotary-joint space solar power station |
| CN112444365A (en) * | 2020-11-30 | 2021-03-05 | 哈尔滨工业大学 | Satellite solar wing substrate unfolding low-frequency modal testing method based on force hammer swing method and laser Doppler method |
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| CN108709625B (en) | 2024-01-30 |
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