CN108663366A - A kind of solid propellant rocket coated inside coating quality detection device - Google Patents
A kind of solid propellant rocket coated inside coating quality detection device Download PDFInfo
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- CN108663366A CN108663366A CN201810269529.1A CN201810269529A CN108663366A CN 108663366 A CN108663366 A CN 108663366A CN 201810269529 A CN201810269529 A CN 201810269529A CN 108663366 A CN108663366 A CN 108663366A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/8422—Investigating thin films, e.g. matrix isolation method
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Abstract
The present invention relates to a kind of solid propellant rocket coated inside coating quality detection devices, belong to solid propellant rocket thermal protective coating field of non destructive testing.Omnidirectional camera, omnidirectional's heater are subjected to reasonable combination and are fixed on main support, it adjusts axial feeding system and main support is fixed on to a certain position on solid engines enclosure interior axis, the working time of omnidirectional's heater and omnidirectional camera is controlled using controller, acquires and utilizes the front and back engine interior thermal protective coating image of image processor processing heating.The present invention heats engine interior thermal protective coating using omnidirectional's heater, engine interior thermal protective coating image before and after being heated by analyzing processing achievees the purpose that the information such as the unsticking situation for detecting motor body and internal thermal protective coating and accurate offer unsticking position, area.Have the characteristics that simple in structure, easy to operate, detection result visualization, result are accurate reliable.
Description
Technical field
The present invention relates to a kind of solid propellant rocket coated inside coating quality detection device, more particularly to one kind is based on
The lossless device for fast detecting of thermal protective coating, belongs to solid-rocket inside infrared thermal wave or the solid propellant rocket of speckle imaging
Engine thermal protective coating field of non destructive testing.
Background technology
The bonding quality of solid rocket motor case and internal heat shield and artificial soil rapid filter is to influence solid-rocket hair
One of the key factor of motivation powder charge and cladding quality, however traditional detection means is lacked to coating bonding quality in the above process
Sunken detector efficiency is low, detection difficulty is big.
Solid propellant rocket process after shell solar heat protection, powder charge casting or pressure stretch, solidification shaping, assembly transport,
Phenomena such as links such as storage and duties processing, the interfacial detachment being likely to occur in the process of heat shield, stomata is to influence
The key factor of engine work success or failure.These defects seriously to a certain extent, may cause engine ignition to fail, or make
Internal ballistics attributes (pressure and thrust of such as combustion chamber) deviation is more than prescribed requirement, or even so that motor body is burnt, explosion：
(1) unsticking of heat insulation layer and shell can make the thermal-flame scurried into burn shell when serious；(2) propellant/clad or
Unsticking between propellant/heat insulation layer can be such that combustion face sharply increases in combustion, and the internal ballistics attributes of engine is caused to change
Become or explodes.
Therefore, the detection in the manufacturing process of solid propellant rocket to shell and heat shield bonding quality and defect,
It is to ensure that its functional reliability and the important link of safety.
It is particularly significant using non-destructive testing technology to the cladding bonding quality defect of engine.Currently, to engine unsticking
The lossless detection method of phenomenon mainly has x-ray method, sound-supersonic boundary surface detection technique etc..But x-ray method detects motor body
When unsticking phenomenon, instrument is heavy, and detection cycle is long, and detection error is larger.In acousto-ultrasonic testing, ultrasonic wave penetration capacity is limited,
Decaying when by the material of two layers or more of shell and heat insulation layer etc. is very big, causes detection error larger.The present invention is based on infrared
Heat wave or speckle imaging method, it use active control thermal excitation method, for checking matter material, structure and defect type with
And specific testing conditions, with various heating techniques excitation measured object, then utilizing detected material, (control adds with variation thermal field
Heat) between interaction, by observe surface of test piece change of temperature field and using omni-directional image integration technology to heating before
The image of surface of test piece is handled afterwards, detects temperature or Deformation Anomalies region, to obtain the detections such as defective locations, area
As a result.For x-ray method harmony-supersonic testing method, the method is easy to detect, quick, effective.
Invention content
The purpose of the present invention is to solve the prior arts there is a problem of that detection speed is slow, provides a kind of solid-rocket hair
Motivation coated inside coating quality detection device.The device can enter engine interior, be started using omnidirectional's heater heating
Casing body adhesive linkage, and by the front and back bonding tomographic image of omnidirectional camera record heating, observe adhesive linkage change of temperature field, and profit
Image is handled with omni-directional image integration technology, to detect the unsticking situation of motor body and internal thermal protective coating with
And the information such as accurate offer unsticking position, area.
A kind of solid propellant rocket coated inside coating quality detection device, including：Detector main support, omnidirectional's heating
Device connecting bracket, omnidirectional's heater fixing bracket, omnidirectional's heater protecting cover, omnidirectional's heater heating element, omnidirectional camera connect
Connecting bolt, omnidirectional's heater protecting cover connect bolt, and omnidirectional's heater heating element connects bolt, omnidirectional camera holder, omnidirectional
Camera press from both sides holder, omnidirectional camera folder, omnidirectional camera, axial displacement holder, radial displacement holder, height adjust holder, pedestal and
Position fixing screws；
Connection relation：Detector main support inner hollow has card slot on four sides to connect omnidirectional camera and presss from both sides holder
With omnidirectional's heater support；Omnidirectional camera presss from both sides holder to fixed omnidirectional camera；Omnidirectional's heater support adds to fixed omnidirectional
Hot device；Detector main support side card slot size and location by omnidirectional camera press from both sides holder and omnidirectional's heater support size and its
Relative position determines；One end of detector main support extends, for connecting axial feeding system；Axial feeding system includes axial
Displacement holder, radial displacement holder and height adjustment holder, be respectively used to the adjustment axial position of detection device, radial position and
Highly, it realizes and device is accurately positioned；Position fixing screws are for realizing detector main support on axial feeding system
Locking.
More omnidirectional cameras are controlled by controller while acquiring image, by image transmitting to image processor, are utilized
Image Fusion completes the acquisition of the circumferential image of 360 ° of engine interior；More omnidirectional's heater heating are controlled by controller
Component starts simultaneously at heating, keeps engine inner wall heat insulating coating heating time consistent, and realizes and be evenly heated；
The omnidirectional camera is the image capturing system for having high wide-angle lens, and camera is the miniature thermal camera of high definition；
Omnidirectional's heater heating element is momentary high power heat source, and photochromic good for bromine tungsten filament lamp of photographing, colour temperature is high, light
It is bright big, power 500W-1300W, colour temperature 3200K.
Detector main support can configure the main support of different cross section shape according to the concrete condition of size of engine, and such as six
Side shape etc., each survey face are assembled with the image capturing system and momentary high power heat source with high wide-angle lens.
Assembling based on the solid propellant rocket coated inside coating quality detection device that infrared thermal wave or speckle are imaged
Method and the course of work, include the following steps：
1) detector main support cross sectional shape, omnidirectional camera, omnidirectional's heater size are determined according to motor body size
And the relative position equidimension parameter of camera and heater；
2) omnidirectional's heater building block is fixed on main support using connection bolt；
3) omnidirectional camera building block is fixed on main support using omnidirectional camera connection bolt；
4) detector main support is fixed on axial feeding system using position fixing screws, wherein the main branch of detector
Frame is connected with axial displacement holder, and axial displacement holder is connected with radial displacement holder, radial displacement holder and height adjustment branch
Frame is connected；Finally height adjustment holder is fixed on the base；
5) detection device is probeed into inside motor body；Axial feeding system is adjusted, makes detector main support and starts
Casing body axis overlaps, and is fixed on detection initial position, to detect inside motor body within the scope of a certain segment length
Coated inside bonding quality；
6) check and ensure the stability of detection device；
7) when carrying out non-destructive testing, the acquisition time and frequency of omnidirectional camera is set by controller, pass through controller tune
Save output power and the heating time of omnidirectional's heater；
8) in the picture transfer to image processor that controller acquires omnidirectional camera, image processor is according to image co-registration
Algorithm handles the image of more omnidirectional's wide angle camera acquisitions of synchronization, obtains engine enclosure interior under synchronization
360 ° of circumferential image in certain length then obtains 360 ° of circumferential images inside different moments motor body.
9) the circumferential image of 360 ° of different moments engine interior is analyzed by image processor, before algorithm comparison heating
The temperature anomaly region of motor body inner wall or deformation situation, deformation position etc. afterwards, detection motor body and internal solar heat protection
The information such as the unsticking situation of coating and accurate offer unsticking position, area.
Advantageous effect
1, the present invention is using infrared thermal wave imaging or speckle imaging detection technology, with ray detection method and ultrasonic technology
It compares, detection time can foreshorten to a few minutes from more than ten minutes, and detection cycle greatly shortens, and equipment is simple portable, it can be achieved that solid
Body rocket engine cast large area detects in real time.
2, the configuration of the present invention is simple, operability are strong, by integrating multiple wide angle cameras and High-speed transient heating device
Into single submodule, modular operation is then carried out, is easily assembled to；High speed nothing is realized by carrying out processing to acquired image
Damage detection process.
3, cavity coating lossless detection method is realized by quantitative transient prediction and image fusion technology, solves ray inspection
Survey method equipment is heavy, the problem of detection cycle length.
4, by using the wide angle camera of multiple template and High-speed transient heating device, the uniform of engine inner wall is realized
Heating, infrared detection can only be carried out outside object and cannot detect the excessive object of radian by solving existing Infrared Non-destructive Testing instrument
The problem of body.
5, the present invention can be according to the dimensional structure adjusting device structure of measurand, also, is directed to various sizes of inner wall
Coating, can adjust heating power and heating time by controller, and the flexibility of detection is high.
Description of the drawings
Fig. 1 be the solid propellant rocket coated inside coating quality detection device that is imaged based on infrared thermal wave or speckle with
Solid rocket motor case relative position schematic diagram；
Fig. 2 is the front view of the detector main support of solid propellant rocket coated inside coating quality detection device；
Fig. 3 is the front view of solid propellant rocket coated inside coating quality detection device；
Fig. 4 is the side view of Fig. 3, the i.e. side view of solid propellant rocket coated inside coating quality detection device.
Wherein, 1-detector main support, 2-omnidirectional's heater connecting brackets, 3-omnidirectional's heater fixing brackets, 4-
Omnidirectional's heater protecting cover, 5-omnidirectional's heater heating elements, 6-omnidirectional cameras connect bolt, 7-omnidirectional's heater protectings
Cover connection bolt, 8-omnidirectional's heater heating elements connect bolt, 9-omnidirectional camera holders, and 10-omnidirectional cameras press from both sides holder,
11-omnidirectional cameras press from both sides, 12-omnidirectional cameras, 13-axial displacement holders, 14-radial displacement holders, 15-height adjustment branch
Frame, 16-pedestals, 17-position fixing screws.
Specific implementation mode
In order to better illustrate objects and advantages of the present invention, come to the present invention into one with reference to figure and specific embodiment
Walk explanation.
Embodiment 1
The lossless quick inspection of thermal protective coating inside the solid propellant rocket being imaged the present invention is based on infrared thermal wave or speckle
Device is surveyed, as shown in Figure 1, detector main support 1 is positioned over inside solid rocket motor case, with engine axis weight
It closes.
Detection device is as shown in Figure 2,3, 4, including detector main support 1, omnidirectional's heater connecting bracket 2, omnidirectional's heating
Device fixing bracket 3, omnidirectional's heater protecting cover 4, omnidirectional's heater heating element 5, omnidirectional camera connect bolt 6, omnidirectional's heating
Device protective cover connects bolt 7, and omnidirectional's heater heating element connects bolt 8, omnidirectional camera holder 9, and omnidirectional camera presss from both sides holder 10,
Omnidirectional camera folder 11, omnidirectional camera 12, axial displacement holder 13, radial displacement holder 14, height adjustment holder 15, pedestal 16,
Position fixing screws 17.
Detector main support 1 is the polygonal tube of inner hollow, has card slot on side to connect omnidirectional camera and presss from both sides holder
10 and omnidirectional's heater support 2；Omnidirectional camera presss from both sides holder 10 to the fixed image capturing system (omnidirectional for having high wide-angle lens
Camera, 12)；Omnidirectional's heater support 2 is to fixed momentary high power heat source (omnidirectional's heater heating element, 5)；Detector master
1 side card slot size and location of holder is pressed from both sides the size and its relative position of holder 10 and omnidirectional's heater support 1 by omnidirectional camera
It determines；More omnidirectional cameras 12 are controlled by controller while acquiring image, by image transmitting to image processor, utilize figure
As blending algorithm completes the acquisition of the circumferential image of 360 ° of engine interior；More omnidirectional's heaters 5 are controlled by synchronizer simultaneously
Heating, keeps engine inner wall heat insulating coating heating time consistent, and realizes and be evenly heated；1 other end of detector main support extends,
For connecting axial feeding system；Axial feeding system includes that axial displacement holder 13, radial displacement holder 14 and height adjust
Holder 15, is respectively used to axial position, radial position and the height of adjustment detection device, and realization is accurately positioned device；Position
Set locking of the fixing screws 17 for realizing device.
The omnidirectional camera 12 is the image capturing system for having high wide-angle lens, and camera is the miniature infrared photography of high definition
Machine；
Omnidirectional's heater heating element 5 is momentary high power heat source, and photochromic good for bromine tungsten filament lamp of photographing, colour temperature is high, light
It is bright big, power 500W-1300W, colour temperature 3200K.
Omnidirectional's heater heating element 5 controls its output power and heating time by controller, realizes to starting
The controllable of machine enclosure interior is evenly heated.
The acquisition time and frequency of the more omnidirectional cameras 12 are controlled by controller, to obtain synchronization engine
The image and the image of engine interior the same area different moments of internal different zones.
The image processor is according to Image Fusion to the image of more omnidirectional's wide angle camera acquisitions of synchronization
It is handled, 360 ° in engine enclosure interior certain length of circumferential image is obtained under synchronization, when then obtaining different
360 ° of circumferential images inside motor body are carved, process visualization function is collected to realize.
The axial feeding system is by axial displacement holder 13, radial displacement holder 14 and height 15 groups of holder of adjustment
At passing through the relative position that position fixing screws 17 adjust three holders so that detector and motor body be axial, it is radial and
Height relative position can accurately be surveyed, and to ensure that detector is on engine axis always, and can be moved in engine axis direction
It is dynamic, the final detection image for obtaining all wall surfaces of engine interior.
The detector main support 1 can configure the main branch of different cross section shape according to the concrete condition of size of engine
Frame, such as hexagon, each survey face are assembled with the image capturing system and momentary high power heat source with high wide-angle lens.
Wherein, when main detector section is square, for the motor body of Φ 300 or so, four cameras can observe engine
Image in 360 ° of enclosure interior, eight camera images can be completely covered detector and correspond to engine shell body region.
The assemble method of motor body detection device based on infrared thermal wave or speckle imaging detecting method, including following step
Suddenly：
1) 1 cross sectional shape of detector main support, omni-directional camera system, omnidirectional's heater are determined according to motor body size
The relative position equidimension parameter of system number and camera and heater；
2) omnidirectional's heater protecting cover 4 fixes the both ends for bromine tungsten filament lamp 5 of photographing, and connects spiral shell by omnidirectional's heater protecting cover
Bolt 7 is fixed on omnidirectional's heater fixing bracket 3, and omnidirectional's heater is fixed branch by omnidirectional's heater heating element connection bolt 8
Frame 3 is fixed in omnidirectional's heater connecting bracket 2, to constitute omnidirectional's heater system, is heated omnidirectional using connection bolt
Device system is fixed on detector main support 1；
3) omnidirectional camera folder 11 fixes the miniature thermal camera of high definition 12, and omnidirectional camera folder 11 presss from both sides holder with omnidirectional camera
10 are fixed by connecting bolt, and omnidirectional camera connects bolt 6 and omnidirectional camera folder holder 10, omnidirectional camera holder 9 are fixed on inspection
It surveys on instrument main support 1；
4) detector main support 1 is fixed on axial displacement holder 13 using position fixing screws 17, by axial displacement
Holder 13 is fixed on radial displacement holder 14, and radial displacement holder 14 is fixed on height adjustment holder 15, finally will be high
The whole holder of low-key 15 is fixed on pedestal 16, forms detection device.
5) detection device is connected with controller and image processing system, the output power of controller control photography bromine tungsten filament lamp 5,
The parameters such as the frequency acquisition and acquisition time of heating time and the miniature thermal camera of high definition 12.Image processing system acquires work
Image and use image fusion technology during work handle it.
The course of work：
1) the motor body level for being coated with heat insulation layer is fixed, as shown in Figure 1, pedestal sets ground, by detector main support
It probes into inside motor body；Axial feeding system is adjusted, detector main support is made to be overlapped with engine shell body axis, and is fixed
In detecting on initial position, to detect the coated adhesive matter that detector main support corresponds to length range intrinsic motivation enclosure interior
Amount；
2) it checks and ensures detection device stability；
3) output power and the heating time that heater is determined according to shell and coating material, when being detected, pass through control
Device processed adjusts output power and the heating time of photography bromine tungsten filament lamp 5, meanwhile, controller is also by being arranged acquisition time and frequency control
The course of work of the miniature thermal camera of high definition processed 12；
4) controller is by the picture transfer to image processing system of full HD miniature infrared camera scan, image procossing
System is handled according to the image that Image Fusion acquires more omnidirectional cameras of synchronization, is obtained synchronization and is issued
360 ° of circumferential image in motivation enclosure interior certain length then obtains 360 ° of circumferential figures inside different moments motor body
Picture；
5) 360 ° of circumferential images of the front and back engine interior of heating are handled by image processing system, started before and after being heated
The region of wall temperature exception or the violent region of deformation in casing body, these regions are unsticking region, according to image procossing
Technology can further analyze the letters such as unsticking situation and accurate unsticking position, the area of motor body and internal thermal protective coating
Breath.
Above-described description further explains the object, technical solutions and advantages of the present invention, is answered
Understand, above is only a specific embodiment of the present invention, for explaining the present invention, the guarantor being not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection domain of invention.
Claims (10)
1. a kind of solid propellant rocket coated inside coating quality detection device, it is characterised in that：Including：Detector main support
(1), omnidirectional's heater heating element (5), omnidirectional camera (12), position fixing screws (17) and axial feeding system；Omnidirectional's phase
Machine (12) is arranged in the both ends of detector main support (1), and is fixed on the side wall of detector main support (1)；Upper and lower ends
Omnidirectional camera (12) quantity is identical, and along detector main support (1) radial symmetric；Between per symmetrical two omnidirectional cameras (12)
It is installed with omnidirectional's heater heating element (5)；Omnidirectional's heater heating element (5) is fixed on detector main support
(1) on side wall；
One end of detector main support (1) connects axial feeding system；Axial feeding system includes：Axial displacement holder (13),
Radial displacement holder (14) and height adjustment holder (15), be respectively used to the adjustment axial position of detection device, radial position and
Highly, it realizes and detection device is accurately positioned；Position fixing screws (17) for realizing detector main support (1) axial direction into
To the locking in system.
2. a kind of solid propellant rocket coated inside coating quality detection device as described in claim 1, it is characterised in that：
The quality determining method of described device is：The motor body level for being coated with heat insulation layer is fixed, pedestal sets ground, by detector master
Holder probes into inside motor body；Axial feeding system is adjusted, detector main support is made to be overlapped with engine shell body axis, and
It is fixed on detection initial position, the coating that length range intrinsic motivation enclosure interior is corresponded to detect detector main support glues
Connect quality；More omnidirectional's heater heating elements (5) are controlled by controller while being heated, and engine inner wall heat insulating coating is made to add
Hot time consistency, and realize and be evenly heated；More omnidirectional cameras (12) are controlled by controller while acquiring image, and image is passed
It is defeated to the acquisition and processing that in image processor, utilize Image Fusion to complete the circumferential image of 360 ° of engine interior.
3. a kind of solid propellant rocket coated inside coating quality detection device as claimed in claim 1 or 2, feature exist
In：The section of the detector main support (1) can be according to the concrete condition of size of engine, and it is for example rectangular to be configured to different shape,
Hexagon etc., and inner hollow；The image capturing system and wink detector main support (1) each side and there is high wide-angle lens
When high-power heat source assemble.
4. a kind of solid propellant rocket coated inside coating quality detection device as claimed in claim 1 or 2, feature exist
In：The axial displacement holder (13), radial displacement holder (14) and height adjust holder (15) to ensure the main branch of detector
Frame (1) is on engine axis always, and can be moved in engine axis direction.
5. a kind of solid propellant rocket coated inside coating quality detection device as claimed in claim 1 or 2, feature exist
In：The omnidirectional camera (12) is the image capturing system for having high wide-angle lens.
6. a kind of solid propellant rocket coated inside coating quality detection device as claimed in claim 5, it is characterised in that：
Omnidirectional camera (12) is the miniature thermal camera of high definition.
7. a kind of solid propellant rocket coated inside coating quality detection device as claimed in claim 1 or 2, feature exist
In：Omnidirectional's heater heating element (5) is momentary high power heat source.
8. a kind of solid propellant rocket coated inside coating quality detection device as claimed in claim 7, it is characterised in that：
Omnidirectional's heater heating element (5) is photography bromine tungsten filament lamp, power 500W-1300W, colour temperature 3200K.
9. a kind of solid propellant rocket coated inside coating quality detection device as claimed in claim 1 or 2, feature exist
In：The controller is adjusting the output power of omnidirectional's heater heating element (5), heating time and omnidirectional camera (12)
Acquisition time and frequency.
10. a kind of solid propellant rocket coated inside coating quality detection device as claimed in claim 1 or 2, feature
It is：The image processor carries out the image of more omnidirectional's wide angle camera acquisitions of synchronization according to Image Fusion
Processing obtains the acquisition of the circumferential image of 360 ° of engine enclosure interior under synchronization, then obtains different moments engine shell
The circumferential image in 360 ° of internal portion, process visualization function is collected to realize.
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| CN201810269529.1A CN108663366A (en) | 2018-03-29 | 2018-03-29 | A kind of solid propellant rocket coated inside coating quality detection device |
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Cited By (1)
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| CN111505728A (en) * | 2019-01-10 | 2020-08-07 | 通用电气公司 | System and method for detecting water in fan case |
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