CN110441125A - Utilize the impact of linear pulse laser simulating trajectory and the device and method of real-time monitoring - Google Patents
Utilize the impact of linear pulse laser simulating trajectory and the device and method of real-time monitoring Download PDFInfo
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- CN110441125A CN110441125A CN201910635121.6A CN201910635121A CN110441125A CN 110441125 A CN110441125 A CN 110441125A CN 201910635121 A CN201910635121 A CN 201910635121A CN 110441125 A CN110441125 A CN 110441125A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention discloses a kind of device and methods that simultaneously real-time monitoring is impacted using linear pulse laser simulating trajectory, device includes laser output module, testing of materials analog module and monitoring modular, the laser output module is for exporting required laser, and it is shaped as linear laser, for going out linear sound wave source in specimen material surface excitation, the material simulation test module is used to test using the ballisticimpact of laser analog material, after the monitoring modular is used for real-time monitoring specimen material by laser-impact, the communication process of produced shock wave and the degree of impairment of material.It improves the anti-ballisticimpact test simulation ability of armour material, compared to tradition based on the test of the ballisticimpacts such as bullet, have many advantages, such as that quick, economical, experiment degree of repeatability is high and collects microcosmic transient process information, armour material can be made in the earlier iterations design phase designed and developed, reduce the dependence to actual trajectory shock-testing.
Description
Technical field
The present invention relates to ballisticimpact simulation fields, in particular to a kind of to be impacted simultaneously using linear pulse laser simulating trajectory
The device and method of real-time monitoring.
Background technique
The armor that daggers and swords injury is resisted from ancient war has both the high performance ballistic of the functions such as shellproof, camouflage to the modern times
Clothing, from the missile-resistant shield of nearly body defence to the shellproof battlebus of expeditionary warfare, bulletproof armour flourishes for the life of outfit person
Property safety provides strong guarantee.In recent years, efficient, light and economic armour material is developed, each military power is become
Research hotspot.
In order to verify the reliability of material, it is typically necessary the integration test that various aspects of performance is carried out to it.It is wherein important
A ring be exactly shock resistance test is carried out to it.Although tradition generates the survey of high velocity ballistic impact based on bullet, shell and explosive
Examination can assess armour material to shock proof ability according to material damage degree, but time-consuming, at high cost for this test,
And it is only capable of obtaining final testing result, it is difficult to collect microcosmic transient process information, be unfavorable for carrying out candidate material comprehensively deep
The analysis entered.Meanwhile in armour material is designed and developed, for various Earlier designs iteration, comprehensive anti-impact is carried out
It is unpractical for hitting test, it is necessary to find a kind of analog detection method of substitution, reduce Earlier designs and test ballisticimpact
Dependence.Laser is due to its four intrinsic big characteristic: monochromaticjty, coherence, directionality and high-energy density, with production practices
The needs of application, laser processing technology are increasingly valued by people.Laser processing has that heat-affected zone is small again, light beam side
The features such as tropism is good, beam spot can be made to focus on wavelength level, can carry out selectivity processing and Precision Machining and superiority.In
The country carries out the simulation under extreme condition using laser and has precedent.It is to devise such as patent of invention CN201811448259
A kind of simulator using the true firer's shock environment of laser analog space product.But for being simulated using linear pulse laser
The dynamically load being rapidly heated in ballisticimpact with high strain-rate carries out ballisticimpact test simulation to armour material, and utilizes
Optical monitoring instrument carries out real-time monitoring to its simulation process, and there are no precedents both at home and abroad.
Summary of the invention
The purpose of the present invention is being directed to the corresponding deficiency of the prior art, a kind of utilization linear pulse laser simulating trajectory is provided
The device and method of simultaneously real-time monitoring is impacted, the anti-ballisticimpact test simulation ability of armour material is improved, compared to traditional base
It is excellent with quick, economic, experiment degree of repeatability height and the microcosmic transient process information of collection etc. in the test of the ballisticimpacts such as bullet
Point can make armour material in the earlier iterations design phase designed and developed, reduce the dependence to actual trajectory shock-testing.
The purpose of the present invention is what is realized using following proposal: being simulated the present invention provides a kind of using linear pulse laser
The device of ballisticimpact and real-time monitoring, including laser output module, testing of materials analog module and monitoring modular, it is described to swash
Light output module is shaped as linear laser for exporting required laser, for going out threadiness in specimen material surface excitation
Sound wave source, the material simulation test module are used to test using the ballisticimpact of laser analog material, and the monitoring modular is used
After real-time monitoring specimen material is by laser-impact, the communication process of produced shock wave and the degree of impairment of material.
Further, the laser output module includes pulse laser, photoparametric amplifier and shaping lens, the arteries and veins
It rushes laser, photoparametric amplifier to connect with laser output system respectively, the laser output system is big according to simulated bullet
Small, quality, the difference of speed, the laser of control pulse laser output corresponding frequencies, pulsewidth, and control change laser output
Wavelength, the laser shaping that the shaping lens are used to export photoparametric amplifier are linear laser to simulate mould in testing of materials
The material surface of block inspires linear sound wave source.
Further, the present apparatus further includes the first reflecting mirror and the second reflecting mirror, the laser of the pulse laser output
Beam enters photoparametric amplifier by the first reflecting mirror；The linear laser of the shaping lens output is entered by the second reflecting mirror
Testing of materials analog module carries out test simulation.
Further, the testing of materials analog module includes the shock simulation room for fixing test material, the punching
The one side for hitting simulating chamber is equipped with laser input hole and monitoring holes；The inner wall of the shock simulation room is coated with light absorption paint；Institute
State the objective table being fixed on the inner wall of shock simulation room for fixing test material；The shock simulation room is fixed with objective table
Side on be fixed with protective plate；The objective table is moving stage.
Further, the shock simulation room is built by high-strength alloy；Shock simulation ceiling portion is equipped with and turns over
Lid door；The moving stage is fixed on protective plate；The side of the fixed test material in the shock simulation room and setting laser
The side of input hole and monitoring holes is oppositely arranged.
Further, specimen material includes protective materials, and the surface adhesion of the protective materials has light-absorbing coating, makes to swash
When the light-absorbing coating of light surge guard material surface, material vaporize in a very short period of time formed high temperature and pressure it is equal from
Daughter layer inspires linear sound wave source on the surface of the material；The protective materials surface covering plated film has transparent glass conduct
Restraint layer, for the plasma plume sputtered to be constrained in protection plate surface, the light-absorbing coating is located at protective materials
Surface and restraint layer between.
Further, the monitoring modular include Raman spectrometer, spectroscope, mixing interferometer, ultrafast camera, described point
Light microscopic is used to the signal light that material simulation test module is fed back being divided into several parts, and a part of light enters Raman spectrometer, obtains
The Raman spectrum of material, and then its surface temperature, internal phase transformation are analyzed, a part of light is anti-by dichroic mirror (also known as dichroscope)
It injects into ultrafast camera, interference fringe is imaged along Acoustic Wave Propagation direction, obtain the variation of specimen material configuration of surface and punching
Wave communication process is hit, a part of light enters mixing interferometer through dichroic mirror, and real-time monitoring is generated along Acoustic Wave Propagation direction
Ultrasonic wave waveform monitors surface melting caused by laser pulse.It is anti-that optical path between dichroic mirror and ultrafast camera is equipped with third
Penetrate mirror.
Further, the present apparatus further includes air bearing optical platform, and package unit is fixed on air bearing optical platform；To guarantee
The stabilization of simulator.Protective cover is respectively arranged with outside each eyeglass of package unit, the laser optical path of package unit, which is equipped with, to be protected
Pillar road makes laser be located at transmission in protective conduit.
The present invention also provides a kind of methods that simultaneously real-time monitoring is impacted using linear pulse laser simulating trajectory, including such as
Lower step:
Prepare specimen material, ready specimen material is placed into shock simulation room and is fixed, is started in official testing
Before, the laser of laser output system control laser output module output setting power is first passed through, in shock simulation indoor observation line
The size of shape laser, the position of mobile shaping lens, adjusts linear laser sphere of action, linear laser is made to focus on specimen material
Surface absorption layer after adjustment, closes the laser output of laser output module, closes shock simulation room；
After ready, according to simulated bullet size, quality, the difference of speed, controlled by laser output system
Laser output module export corresponding frequencies, pulsewidth, wavelength laser；
Monitoring modular is opened, then opens the gate of laser output module, laser beam is exported by laser output module, into material
Material test simulation module simultaneously impacts specimen material, the light-absorbing coating on laser-impact protective materials surface, and material is when extremely short
Interior vaporization forms the plasmasphere of a high temperature and pressure, which sprays rapidly outward, due to light-absorbing coating
Presence, the expansion of plasmasphere is restricted, its pressure is caused to increase rapidly, as a result impose on specimen material one impact plus
It carries, to go out linear sound wave source in specimen material surface excitation, sample is may be implemented in the Nonlinear acoustic wave and shock wave of excitation
The fracture of material and layer are split, to simulate process of the material by bullet impact；
At the same time, material is entered spectroscope by the feedback signal light issued after laser-impact, and a part of light enters drawing
Graceful spectrometer, and then the Raman spectrum of material is obtained, another part light is reflected into ultrafast camera by dichroic mirror, to interference item
Line is imaged along Acoustic Wave Propagation direction, and then obtains the variation of specimen material configuration of surface and shock motion process, and there are also one
Part light enters mixing interferometer through dichroic mirror, the ultrasonic wave waveform that real-time monitoring is generated along Acoustic Wave Propagation direction, in turn
Surface melting caused by laser pulse is monitored, the generation and communication process of sound wave and shock wave in real-time monitoring armour material, with
And the damage development process that material phase transformation, layer split and be broken；
Ready specimen material is placed on the moving stage in shock simulation room and is fixed, sample is if desired measured
The protective performance of product material different parts can then be controlled by laser output system, closed laser and exported gate, control material is surveyed
The moving stage in analog module is tried, the position of specimen material is adjusted, is being adjusted to suitable position and then secondary opening laser
Gate is exported, above-mentioned simulation steps are repeated.
The measurement of all feedback informations is under nanoseconds resolution ratio.
Present invention has the advantage that since of the invention utilizes the impact of linear pulse laser simulating trajectory and real-time monitoring
Device include laser output module, testing of materials analog module, monitoring modular and a series of optical mirror slips, the laser output
Module is shaped as linear laser for exporting required laser, for inspiring linear sound wave source on the surface of the material.It is described
Material simulation test module is used to test using the ballisticimpact of laser analog plate armour bullet resistant material.The monitoring modular is for real
When monitor armoring bullet resistant material by laser-impact after, the communication process of produced shock wave and the degree of impairment of material.Pass through
The high-precision ballisticimpact test simulation of the above structure and device of real-time monitoring realizes the true trajectory item of armoring bullet resistant material
Accurate simulation, test and the analysis of impact process and degree of impairment under part.
Laser output module is made of pulse laser, photoparametric amplifier and shaping lens.It is big according to simulated bullet
Small, quality, the difference of speed can control pulse laser and photoparametric amplifier by laser output system, change output and swash
The parameters such as energy, wavelength, pulsewidth, the frequency of light.Laser shaping can be linear laser to excite on the surface of the material by shaping lens
Linear sound wave source out, can be by control shaping lens at a distance from material simulation test module, and corrective action is in specimen material
The focal position of linear laser.Institute's laser adjusted carries out test simulation by reflecting mirror, into testing of materials analog module.
Testing of materials analog module is made of shock simulation room, protective plate and moving stage.Shock simulation room is by high-strength
Degree alloy is built, and front has two holes respectively as laser input hole and monitoring holes, and inner wall is coated with light absorption paint, can prevent mould
The potential danger that the scattering of strong light and phase transformation, the fracture etc. of specimen material during quasi- may cause.Shock simulation ceiling portion is
Flip door, convenient for test sample of observing and take.Protective plate setting is placed in shock simulation room far from input hole side, both may be used
Support is provided for moving stage, and can be prevented under extreme experimental condition, laser breakdown sample and moving stage are to subsequent
Personnel or equipment damage.Moving stage is fixed on protective plate, for fixing test material and as needed adjustment survey
The position of test agent.Specimen material is made of protective materials, absorbed layer and restraint layer.Protective materials surface adhesion light absorption applies
Layer, and by adjusting moving stage, so that on laser beam focus to light-absorbing coating, it is ensured that the production for phenomena such as fracture is split with layer
It is raw.Protective materials surface covers plated film transparent glass as restraint layer, can constrain in the plasma plume sputtered
Protect plate surface.After laser enters testing of materials analog module, the light across transparent restraint layer surge guard material surface is inhaled
Coating is received, material vaporizes the plasmasphere for forming a high temperature and pressure in a very short period of time.Outlet is excited on the surface of the material
Shape sound wave source, the fracture of protective materials may be implemented for the Nonlinear acoustic wave and shock wave of excitation and layer is split, and simulates practical bullet
Ballisticimpact test process.Whole process is by monitoring module monitors.
Monitoring modular is made of Raman spectrometer, mixing interferometer, ultrafast camera.In specimen material by laser-impact
Afterwards, spectroscope is passed through by the signal light fed back in testing of materials simulation process.A part of light enters Raman spectrometer, obtains material
The Raman spectrum of material, and then analyze its surface temperature, internal phase transformation etc..A part of light is reflected into ultrafast phase by dichroic mirror
Interference fringe is imaged along Acoustic Wave Propagation direction for machine, and then obtains the variation of specimen material configuration of surface and shock motion
Process.Some light enters mixing interferometer, the ultrasound that real-time monitoring is generated along Acoustic Wave Propagation direction through dichroic mirror
Wave waveform, and then monitor surface melting caused by laser pulse.The measurement of all feedback informations is differentiated in nanoseconds
Under rate.The generation of sound wave and shock wave and communication process and material phase transformation, layer it can split and be broken in real-time monitoring armour material
Damage development process.After obtaining measured range of information, it can be made a concrete analysis of as the reliable of armoring bullet resistant material
Property.
In cylindrical protective pipeline, eyeglass is placed in protective cover package unit laser optical path.Both Gao Gong can be reduced
Rate laser can reduce external environment in monitoring modular to prison in laser output module and the potential risk of material processing module
Survey the influence of signal.
The present invention is using the dynamically load being rapidly heated in pul sed laser simulation ballisticimpact with high strain-rate, with true bullet
Road impact has good consistent.And the ballisticimpact test method compared to tradition based on bullet etc., have quickly, it is economical,
The advantages that testing degree of repeatability height and collecting microcosmic transient process information.This method can make armour material early stage designing and developing
The Iterative Design stage reduces the dependence tested ballisticimpact.The efficiency of research and development armour material early period is improved, and is armoring material
Expect to provide a kind of new selection in the final inspection stage.
Present invention incorporates Raman spectrometer, mixing interferometer and a series of advanced monitorings of ultrafast camera to characterize instrument.
Under the temporal resolution of nanosecond, it both can use ultrafast camera and observed the variation of specimen material configuration of surface and shock wave in real time
Communication process；Again using Raman spectrometer and mixing interferometer, Microstructure characterization is carried out to armoring bullet resistant material, it is detailed
Material surface in solution ballisticimpact test process is so that stress, strain, phase transformation, the layer of internal microstructure such as split at the details.
The two combines, and is mutually authenticated, it is ensured that monitoring information is comprehensively, reliably.
Detailed description of the invention
Fig. 1 is a kind of dress that simultaneously real-time monitoring is impacted using linear pulse laser simulating trajectory provided in an embodiment of the present invention
The structural schematic diagram set；
Fig. 2 is a kind of dress that simultaneously real-time monitoring is impacted using linear pulse laser simulating trajectory provided in an embodiment of the present invention
The structural schematic diagram of the testing of materials analog module and sample set；
Fig. 3 is a kind of dress that simultaneously real-time monitoring is impacted using linear pulse laser simulating trajectory provided in an embodiment of the present invention
The locations of structures schematic diagram of shaping lens, reflecting mirror and the specimen material set.
Fig. 4 is a kind of dress that simultaneously real-time monitoring is impacted using linear pulse laser simulating trajectory provided in an embodiment of the present invention
The control system schematic diagram set.
In attached drawing, 1 is pulse laser, and 2 be photoparametric amplifier, and 3 be shaping lens, and 41 be the first reflecting mirror, and 42 are
Second reflecting mirror, 43 be third reflecting mirror, and 5 be Nonlinear acoustic wave, and 6 be spectroscope, and 7 be shock simulation room, and 8 be Raman spectrum
Instrument, 9 be ultrafast camera, and 10 be mixing interferometer, and 11 be specimen material, and 12 be protective conduit, and 13 be protective cover, and 14 be laser
Beam, 15 be feedback signal light, and 16 be moving stage, and 17 be protective plate, and 18 be restraint layer, and 19 be absorbed layer, and 20 make for laser
It is protective materials with position, 21,22 be dichroic mirror.
Specific embodiment
It is that a kind of of the embodiment of the present invention utilizes linear pulse laser simulating trajectory to impact and supervise in real time referring to Fig. 1 to Fig. 3
The design diagram of the device of survey.Its entirety is divided into three parts, be respectively laser output module, testing of materials analog module and
Monitoring modular.Specific laser required for laser output module exports simulates mould to testing of materials analog module, in testing of materials
Block carries out ballisticimpact simulation using pulse laser, and ballisticimpact simulation process is recorded by monitoring modular real-time monitoring.It is described to swash
Light output module is shaped as linear laser for exporting required laser, for going out threadiness in specimen material surface excitation
Sound wave source, the material simulation test module are used to test using the ballisticimpact of laser analog material, and the monitoring modular is used
After real-time monitoring specimen material is by laser-impact, the communication process of produced shock wave and the degree of impairment of material.
In above-described embodiment, laser output module is mainly by pulse laser 1, photoparametric amplifier 2 and 3 groups of shaping lens
At.The shaping lens 3 of the present embodiment can use cylindrical lens.Laser enters from the side of cylindrical lens, through cylinder
It is projected after lens aggregation from the other side.Before carrying out ballisticimpact simulation, first according to the required simulation size of bullet, quality,
The information such as speed select the parameters such as suitable laser power, wavelength, pulsewidth, frequency.Laser output system is recycled to control pulse
Laser 1 exports the parameters such as pulsewidth, power, the frequency of laser.The laser that pulse laser 1 issues passes through the first reflecting mirror 41,
The wavelength of changeable exported laser is controlled after into photoparametric amplifier 2 by laser output system.By photoparametric amplifier 2
Laser beam after optimization reflexes to testing of materials simulation after shaping lens 3 are shaped as linear laser, by the second reflecting mirror 42
Module carries out ballisticimpact simulation.
Preferably, the focus of linear laser can be adjusted by changing position of the shaping lens 3 apart from photoparametric amplifier 2
It is set to focus on the surface of specimen material 11, to reduce the influence due to factors such as thickness of sample to linear laser focal position.
Before formally starting ballisticimpact simulation, the instrument of monitoring modular is closed, opens pulse laser 1 and photoparametric amplifier 2, it is defeated
Out any pulsewidth, frequency, wavelength minimum power laser, open shock simulation room 7 cover board.Observe linear laser action model
It encloses, front and back adjusts the position of shaping lens 3, obtains suitable linear laser sphere of action.After adjustment, shock simulation is closed
7 cover board of room closes laser output module, opens monitoring modular with the ballisticimpact simulation process of real-time monitoring material.
Preferably, in cylindrical protective pipeline 12, eyeglass is placed in protective cover 13 package unit laser optical path.Both
High power laser light can be reduced in laser output module and the potential risk of material processing module, and external environment prison can be reduced and existed
Survey influence of the module to monitoring signals.
Preferably, the shock simulation room 7 builds for high-strength alloy, and positive aperture is respectively as laser input hole
And monitoring holes, inner wall are coated with light absorption paint, can prevent phase transformation, the fracture of strong light and specimen material in process etc. from may draw
The potential danger risen.Shock simulation ceiling portion is flip door, convenient for test sample of observing and take.
Preferably, specimen material 11 is made of protective materials 21, absorbed layer 18 and restraint layer 19.11 surface of protective materials is glutinous
Attached light-absorbing coating, and the position by adjusting moving stage 16 and shaping lens 3, so that linear laser focuses on light absorption
On coating, it is ensured that the generation for phenomena such as fracture is split with layer.Protective materials surface covers plated film transparent glass as restraint layer,
The plasma plume sputtered can be constrained in protection plate surface.
In above-described embodiment, testing of materials module is made of protective plate 17, moving stage 16 and shock simulation room 7.Swash
After reflection of the light by the second reflecting mirror 42, into shock simulation room 7, frontal impact specimen material 11.High power density, short arteries and veins
The light laser of punching passes through the light-absorbing coating 19 of transparent restraint layer surge guard material surface, material vapour in a very short period of time
Change the plasmasphere 20 for forming a high temperature and pressure, which sprays rapidly outward, due to depositing for restraint layer 18
, the expansion of plasma 20 is restricted, its pressure is caused to increase rapidly, as a result impose on protective materials 21 1 impact plus
It carries, to inspire linear sound wave source on the surface of the material, the double-deck plate armour is may be implemented in the Nonlinear acoustic wave 5 and shock wave of excitation
The fracture of protective materials and layer are split.To simulate process of the material by bullet impact.Moving stage uses electronic loading
Platform.Motorized subject table is electrically connected with loading bench control system, and loading bench control system is for receiving instruction control motorized subject table
Nigration sample.
In above-described embodiment, monitoring modular forms 10 by Raman spectrometer 8, mixing interferometer 9, ultrafast camera.Protect material
After material is by laser-impact, by monitoring holes by spectroscope 6, a part of light enters Raman spectrometer 8, obtains material signal light 15
Raman spectrum, and then analyze its surface temperature, internal phase transformation etc..A part of light is reflected into ultrafast camera by dichroic mirror 22
10, interference fringe is imaged along Acoustic Wave Propagation direction, and then obtain the variation of specimen material configuration of surface and shock motion
Process.Some light enters mixing interferometer 9 through dichroic mirror 22, and real-time monitoring generates super along Acoustic Wave Propagation direction
Acoustic waveform, and then monitor surface melting caused by laser pulse.When specimen material carries out ballisticimpact simulation, using super
Fast camera and mixing interferometer are monitored.After ballisticimpact simulation, it is monitored using Raman spectrometer.It is described
The measurement of all feedback informations is under nanoseconds resolution ratio.Can in real-time monitoring armour material sound wave and shock wave generation
And the damage development process that communication process and material phase transformation, layer split and be broken.After obtaining measured range of information,
It can be made a concrete analysis of as the reliability of armor facing material.Optical path between dichroic mirror and ultrafast camera is reflected equipped with third
Mirror 43.
Preferably, its wavelength that mixing the issued light of interferometer is fixed as by the wavelength of light of dichroic mirror 22.
As shown in figure 4, the present invention can also cooperate a set of control system, the control system includes general control system and subsystem
System, the subsystem include that laser output system, loading bench control system and monitoring system, the general control system are subjected to people
Work operation, sends control instruction to each subsystem according to demand, instructs for example, sending to laser output system, changes pulse and swashs
Pulsewidth, energy and the frequency of light device output laser；It sends and instructs to photoparametric amplifier, change the wavelength of output laser.Example again
Such as, instruction control moving stage nigration sample is sent.
With this device, ability and monitoring and test process of the test sample material as ballistic armor materials.It is a kind of to utilize line
The method of shape pul sed laser simulation ballisticimpact and real-time monitoring, includes the following steps:
Step 1；Test the preparation stage.Specimen material is pre-processed, the materials such as aluminium foil, black tape is covered above it and makees
Specimen material 11 is formed as restraint layer for light absorbing layer, then the K9 glass that abutting a layer thickness is 1cm on absorbed layer.It beats
The specimen material 11 handled well is placed on the moving stage 16 in shock simulation room 7 simultaneously by the cover board for opening shock simulation room 7
It is fixed.In device laser output system pulse laser 1 and photoparametric amplifier 2 be respectively adopted CARBIDE pulse laser and
ORPHEUS-HP photoparametric amplifier.The output power of pulse laser is 0-40W, output wavelength 1030nm.Pulse laser
Device and all included gate of photoparametric amplifier, can cut off laser output under conditions of pulse laser continuous service.Formal
Before test starts, the low-energy laser that laser output system control 1 output power of pulse laser is 0.1W is first passed through, is being impacted
The size of observation linear laser in simulating chamber 7, according to factors such as the thickness of specimen material, the position of mobile shaping lens 3, adjustment
Linear laser sphere of action makes linear laser focus on 11 Surface absorption layer of specimen material.After adjustment, laser output is closed
The laser of module exports, and shuts the cover board of shock simulation room 7.Package unit laser optical path is 3cm cylinder protection pipe in diameter
In road, shaping lens are placed in the cuboid protective cover of 20cm*8cm*8cm, and rest of the lens are placed in the pros that side length is 8cm
In body protective cover.17 specification length and width of protective plate are 20cm × 20cm, with a thickness of 1.0cm, it is ensured that not by laser breakdown.
Step 2: after ready, according to factors such as size, quality, the speed of required bullet to be simulated, by swashing
Light output system controls the laser that pulse laser 1 exports corresponding frequencies, pulsewidth, and laser beam enters optical parameter by reflecting mirror 4
Amplifier 2, then laser output wavelength is changed by the control of laser output system.So far, the laser beam exported can be used
To simulate specific bullet to the percussion of material.
Step 3: optical monitoring instrument is opened, then opens the gate of laser output module, laser beam is by laser output module
Output enters testing of materials analog module through the second reflecting mirror 42 and impacts specimen material.High power density, the strong of short pulse are swashed
Light passes through the black tape and aluminium foil of K9 glass surge guard material surface, and vaporization forms a high temperature and pressure in a very short period of time
Plasmasphere 20,20 layers of the plasma sprays rapidly outward, due to the presence of K9 glass, the expansion of plasma 20 by
To limitation, its pressure is caused to increase rapidly, one Impulsive load of specimen material is as a result imposed on, thus in specimen material surface excitation
Linear sound wave source out, the fracture of specimen material may be implemented for the Nonlinear acoustic wave and shock wave of excitation and layer is split.To simulate
Process of the material by bullet impact.
Step 4: at the same time, material trajectory is entered spectroscope 6 by the feedback signal light 15 issued after laser-impact.
A part of light enters Raman spectrometer 8, and then obtains the Raman spectrum of material, but Raman spectrometer is not run at this time, prevents mould
Strong light when quasi- has an impact Raman spectrum.Another part light is reflected into ultrafast camera 10 by dichroic mirror 22, to interference
Striped is imaged along Acoustic Wave Propagation direction, and then obtains the variation of 11 configuration of surface of specimen material and shock motion process.Also
Some light enters mixing interferometer 9, the ultrasonic wave wave that real-time monitoring is generated along Acoustic Wave Propagation direction through dichroic mirror 22
Shape, and then monitor surface melting caused by laser pulse.After simulation, openable Raman spectrometer 8, to specimen material 11
Carry out Raman Characterization.And the Raman spectrum of different parts can be measured by 16 mobile example of moving stage.It is described all
The measurement of feedback information is under nanoseconds resolution ratio.Can in real-time monitoring armour material sound wave and shock wave generation and biography
Broadcast process and damage development process that material phase transformation, layer split and be broken.It, can be right after obtaining measured range of information
It is made a concrete analysis of.
Step 5: if desired simulating the protective performance of protective materials different parts, then can be controlled by computer, closes and swashs
Light output gate controls the moving stage 16 in testing of materials module, adjusts the position of specimen material 11.It is being adjusted to suitable
Position and then secondary opening laser export gate, repeat above-mentioned simulation steps.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, it is clear that those skilled in the art
Various changes and modifications can be made to the invention by member without departing from the spirit and scope of the present invention.If in this way, of the invention
Within the scope of the claims of the present invention and its equivalent technology, then the present invention is also intended to encompass these to these modifications and variations
Including modification and variation.
Claims (10)
1. a kind of device for impacting simultaneously real-time monitoring using linear pulse laser simulating trajectory, it is characterised in that: defeated including laser
Module, testing of materials analog module and monitoring modular out, the laser output module are used to export required laser, and its is whole
Shape is linear laser, and for going out linear sound wave source in specimen material surface excitation, the material simulation test module is for utilizing
The ballisticimpact of laser analog material is tested, after the monitoring modular is used for real-time monitoring specimen material by laser-impact, institute
Generate the communication process of shock wave and the degree of impairment of material.
2. the apparatus according to claim 1, it is characterised in that: the laser output module includes pulse laser, beche-de-mer without spike
Amount amplifier and shaping lens, the pulse laser, photoparametric amplifier are connect with laser output system respectively, the laser
Output system controls pulse laser output corresponding frequencies, pulsewidth according to simulated bullet size, quality, the difference of speed
Laser, and control change laser output wavelength, and the shaping lens for being by the laser shaping that photoparametric amplifier exports
Linear laser inspires linear sound wave source with the material surface in testing of materials analog module.
3. the apparatus of claim 2, it is characterised in that: further include the first reflecting mirror and the second reflecting mirror, the arteries and veins
The laser beam for rushing laser output enters photoparametric amplifier by the first reflecting mirror；The linear laser of the shaping lens output
Enter testing of materials analog module by the second reflecting mirror and carries out test simulation.
4. the apparatus according to claim 1, it is characterised in that: the testing of materials analog module includes for fixed test
The one side of the shock simulation room of material, the shock simulation room is equipped with laser input hole and monitoring holes；The shock simulation
The inner wall of room is coated with light absorption paint；The objective table for fixing test material is fixed on the inner wall of the shock simulation room；Institute
It states shock simulation room and is fixed on the side of objective table and be fixed with protective plate；The objective table is moving stage, the movement
Objective table is connect with loading bench control system.
5. device according to claim 4, it is characterised in that: the shock simulation room is built by high-strength alloy；
Shock simulation ceiling portion is equipped with flip door；The moving stage is fixed on protective plate；The shock simulation room is fixed
The side of test material and the side of setting laser input hole and monitoring holes are oppositely arranged.
6. device according to claim 1 or 4, it is characterised in that: specimen material includes protective materials, the protective materials
Surface adhesion have light-absorbing coating, when making the light-absorbing coating on laser-impact protective materials surface, material is in the extremely short time
Interior vaporization forms the plasmasphere of a high temperature and pressure, inspires linear sound wave source on the surface of the material；The protective materials table
Covering plated film has transparent glass as restraint layer above face, for the plasma plume sputtered to be constrained in protective plate table
Face, the light-absorbing coating are located between the surface and restraint layer of protective materials.
7. the apparatus according to claim 1, it is characterised in that: the monitoring modular includes Raman spectrometer, spectroscope, mixes
Frequency interferometer, ultrafast camera, the spectroscope are used to the signal light that material simulation test module is fed back being divided into several parts, and one
Light splitting enters Raman spectrometer, obtains the Raman spectrum of material, and then analyzes its surface temperature, internal phase transformation, and a part of light is logical
It crosses dichroic mirror and is reflected into ultrafast camera, interference fringe is imaged along Acoustic Wave Propagation direction, obtains specimen material surface shape
State variation and shock motion process, a part of light enter mixing interferometer through dichroic mirror, and real-time monitoring is along Acoustic Wave Propagation
The ultrasonic wave waveform that direction generates monitors surface melting caused by laser pulse.
8. device according to any one of claims 1 to 7, it is characterised in that: further include air bearing optical platform, package unit is solid
It is scheduled on air bearing optical platform；It is respectively arranged with protective cover outside each eyeglass of package unit, is set on the laser optical path of package unit
There is protective conduit, laser is made to be located at transmission in protective conduit.
9. a kind of method for impacting simultaneously real-time monitoring using linear pulse laser simulating trajectory, which is characterized in that including walking as follows
It is rapid:
Prepare specimen material, ready specimen material is placed into shock simulation room and is fixed, before official testing starts, first
The laser that laser output module output setting power is controlled by laser output system, in shock simulation indoor observation linear laser
Size, the position of mobile shaping lens adjusts linear laser sphere of action, linear laser is made to focus on the suction of specimen material surface
Layer is received, after adjustment, the laser output of laser output module is closed, closes shock simulation room；
After ready, according to simulated bullet size, quality, the difference of speed, laser is controlled by laser output system
Output module export corresponding frequencies, pulsewidth, wavelength laser；
Monitoring modular is opened, then opens the gate of laser output module, laser beam is exported by laser output module, is surveyed into material
Examination analog module simultaneously impacts specimen material, and the light-absorbing coating on laser-impact protective materials surface, material is in a very short period of time
Vaporization forms the plasmasphere of a high temperature and pressure, which sprays rapidly outward, due to depositing for light-absorbing coating
, the expansion of plasmasphere is restricted, its pressure is caused to increase rapidly, one Impulsive load of specimen material is as a result imposed on,
To go out linear sound wave source in specimen material surface excitation, specimen material is may be implemented in the Nonlinear acoustic wave and shock wave of excitation
Fracture and layer split, to simulate process of the material by bullet impact；
At the same time, material is entered spectroscope by the feedback signal light issued after laser-impact, and a part of light enters Raman light
Spectrometer, and then the Raman spectrum of material is obtained, another part light is reflected into ultrafast camera by dichroic mirror, to interference fringe edge
Acoustic Wave Propagation direction is imaged, and then obtains the variation of specimen material configuration of surface and shock motion process, some
Light enters mixing interferometer, the ultrasonic wave waveform that real-time monitoring is generated along Acoustic Wave Propagation direction through dichroic mirror, and then monitors
Surface melting caused by laser pulse, the generation and communication process of sound wave and shock wave, Yi Jicai in real-time monitoring armour material
The damage development process that material phase transformation, layer split and be broken；
10. according to the method described in claim 9, it is characterized by: ready specimen material is placed into shock simulation room
In moving stage on and it is fixed, if desired measure the protective performance of specimen material different parts, then can be exported by laser
System control closes laser and exports gate, controls the moving stage in testing of materials analog module, adjusts the position of specimen material
It sets, is being adjusted to suitable position and then secondary opening laser output gate, is repeating simulation steps as claimed in claim 9；All
The measurement of feedback information is under nanoseconds resolution ratio.
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