CN105823582B - A kind of short sound path ultrasonic non-destructive probe of deep camber component surface residual stress - Google Patents
A kind of short sound path ultrasonic non-destructive probe of deep camber component surface residual stress Download PDFInfo
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- CN105823582B CN105823582B CN201610007332.1A CN201610007332A CN105823582B CN 105823582 B CN105823582 B CN 105823582B CN 201610007332 A CN201610007332 A CN 201610007332A CN 105823582 B CN105823582 B CN 105823582B
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- residual stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/25—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons
- G01L1/255—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons using acoustic waves, or acoustic emission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2437—Piezoelectric probes
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Toxicology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The device of residual stress ultrasonic measurement is carried out the present invention relates to a kind of component for curvature disaster coupling contact.Including organic glass wedge block, piezoelectric chip, sealing cover.The function realization of sensor device is the structure by one receipts of the hair of piezoelectric chip one and internal loopback, and outstanding feature is the detection function that critical refraction longitudinal wave surveys spacing and vertical and horizontal residual stress in the short acoustical paths and carrying being detected in component.The mentality of designing that the invention proposes is novel, and the structure very good solution of the invention device problem of curvature disaster coupling contact component residual stress detection has wide practical use.
Description
One, technical field
The present invention devises a kind of ultrasonic inspection probe suitable for curvature disaster coupling contact detection means residual stress.
The device can inspire critical refraction longitudinal wave and the short acoustical paths in being detected component by the non-contacting mode of water coincidence,
To realize the detection of surface complex component near surface zonule residual stress.Belong to field of non destructive testing.
Two, background technique
Residual stress is in process of metal working due to non-uniform stress field, strain field, temperature field and nonuniform organization
Property, the stress remained after deformation.The presence of residual stress has a significant impact to the reliability of mechanical component, especially pair
Fatigue life, dimensional stability and the resistance to corrosion of structural member influence very big and will lead to stress concentration, so as to cause material
Material generates micro-crack, and these crackles cause material to be broken under certain condition, so as to cause serious accident.Therefore it studies each
Kind situation residual stress measurement is just particularly important.
Can realize stress analysis to external surface of structural member at this stage has Magnetic Memory equipment and X-ray stress analysis instrument.
Magnetic Memory equipment only can qualitative analysis stress concentrate, stress value can not be measured.X-ray stress analysis instrument is difficult to realize live survey
Amount, and have certain harm to human body.Critical refraction longitudinal wave carries out stress mornitoring to stress sensitive, in application critical refraction longitudinal wave
When, in view of the influence of some component curvature, cause existing contact detection voussoir be difficult with tested component coupling contact to
The acoustic beam of chip excitation, which is difficult to convert through waveform, inspires required waveform.On the other hand in view of modern much detected component to it
The demand of the residual stress detection of specific tiny area, existing detection voussoir cannot carry out the residual stress of its zonule quasi-
True detection.According to the above problem, remnants can be carried out to the detected component of curvature disaster coupling contact by designing answers the present invention
The sensor of power detection, and the residual stress while detection sensor of vertical and horizontal of the energy detection means inside zonule
The distance between detected component.The present invention is not only simple in structure, easy to use and improve inspection to a certain extent
Survey the efficiency of residual stress.With extensive social application prospect.
Relative to granted patent: " plate with curved surface residual stress ultrasonic detection transceiver device, application number:
CN201110283060 " measurement curvature of curved surface is single, does not have variable curvature curved surface member and cell domain measurement residual stress measurement
Flexibility, on the other hand its invention does not have the relevant design thought with modern automation detection, causes its detection not same district
The process in domain is the mobile completion by hand, is greatly reduced detection efficiency.And mobile accuracy is also by inevitable subjectivity
Image.The method have the characteristics that the residual stress measurement for curved surface has more flexibility, it can be to the steel plate of different curvature
Residual stress is measured in a manner of non-contact water coincidence.The present invention realizes short sound path residual stress inspection in structure simultaneously
It surveys, meets the demand in the detection of curved surface zonule residual stress.Sensor and detected component can effectively be changed simultaneously
Distance, so that incremental range be adjusted flexibly.On the other hand the present invention is effectively realized in line with the design philosophy of automatic detection
With the combination of modern industry manipulator.Detection efficiency and detection accuracy is caused to be effectively improved.
Three, summary of the invention:
The present invention devises a kind of lossless spy of residual stress ultrasonic measurement that sensor component is placed suitable for curvature disaster
Head.The device and curved surface implement non-contact water coincidence and have ranging and vertical and horizontal residual stress detection function, can
Guarantee the reliability of measurement result.
The present invention is implemented as follows: ultrasonic longitudinal wave is incident at a certain angle, it can inspire and face in detected component surface
Boundary's refracted longitudinal wave and tested component short distance propagate, guarantee detection means tiny area reliability.The present invention is using pressure
Excitation apparatus of the electric chip as ultrasonic wave, is placed on organic glass voussoir and is fixed in movable bracket, quilt
Detection is fixed on manipulator and with robot movement, by the measurement of piezoelectric patches internal loopback form with blade at a distance from thus
Guarantee suitable spacing, then other two groups of piezoelectric chips are by way of a hair one is received to the vertical and horizontal of detected component
Stress measure.
Four, Detailed description of the invention:
Fig. 1 is blade surface stress detection device；
Fig. 2 is the structure chart of ranging piezoelectric chip, sealing cover and fixed frame；
Fig. 3 is the principal section figure of ranging piezoelectric chip；
Fig. 4 is the top view of ranging piezoelectric chip.
The reference numerals are as follows: 1, fixed frame 2, sealing cover (Fig. 3) 3 detect stress piezoelectric chip 4, water 5, detection
Curved surface 6, ranging piezoelectric chip 7, organic glass voussoir (Fig. 2) 8, fixed thread 9, seal groove 10, wire casing
Five, specific embodiment:
Detailed description of the preferred embodiments below:
Fig. 1 is leaf surface residual stress ultrasound detection schematic diagram, including organic glass wedge block 7 (Fig. 2), capping 2, ranging
Piezoelectric chip 6 detects stress piezoelectric chip 3
For detection means surface residual stress detection when, must by sensor by capping on be threadedly secured in it is removable
On fixed frame, it is then immersed in water.Component is detected simultaneously to be also immersed in water, by controling effectively to movable fixture,
To remain that sensor and detected component have suitable spacing.Then it is successively excited by other two groups of piezoelectric chips super
Sound wave, to generate critical refraction longitudinal wave, and it is short to carry out the critical refraction longitudinal wave generated in the tiny area for being detected component
The propagation of distance, to successively detect the horizontal and vertical residual stress of a certain tiny area.Then by mobile tested
Component is surveyed successively to detect the residual stress region of detection required by it.
Claims (7)
1. a kind of short sound path ultrasonic non-destructive probe of deep camber component surface residual stress, which is characterized in that it can be to curvature disaster
Coupling is not easy the component of contact measurement by way of non-contact water coincidence, prompt critical refracted longitudinal wave, to realize to its structure
The measurement of the vertical and horizontal residual stress of part smaller area；
It includes fixed frame, the sealing cover connected with one end of the fixed frame, the organic glass wedge being connected with the sealing cover
Block, wherein the center of the organic glass voussoir end close to the sealing cover is provided with ranging piezoelectric chip,
Two pairs of detection stress piezoelectric chips in crossing distribution, the detection stress piezoelectricity are set around the ranging piezoelectric chip
Bottom of wafer is obliquely installed to the ranging piezoelectric chip.
2. ultrasonic non-destructive probe according to claim 1, which is characterized in that answer the remnants of detected component smaller area
Power detection function be by rationally designing the structure of the organic glass voussoir with realize more appropriate ultrasonic wave incidence angle with
And the relative position of the piezoelectric chip, so that the critical refraction longitudinal wave of excitation be made to propagate in detected component short distance.
3. ultrasonic non-destructive probe according to claim 1, which is characterized in that the detection to detected component vertical and horizontal
Function be by the layout of organic glass voussoir described in reasonable arrangement and ultrasonic wave isolation channel, make two groups of piezoelectric chips can realize according to
Secondary ultrasonic transmission/reception function and non-interference.
4. ultrasonic non-destructive according to claim 1 probe, which is characterized in that the component of curvature disaster coupling with non-contact
Form its residual stress is detected, be the function that internal loopback is passed through by rationally placing the piezoelectric chip
Detection sensor is realized at a distance from detected component with guaranteeing their best spacing.
5. ultrasonic non-destructive probe according to claim 1, which is characterized in that the component of curvature disaster coupling is with non-contacting
Form carries out residual stress measurement to it, is the refraction angle by reasonable computation ultrasonic wave between different medium, makes to detect
To change corresponding detection range while changing detecting distance, to make detection process with more flexibility.
6. ultrasonic non-destructive probe according to claim 1, which is characterized in that designed by being detected by way of water coincidence
The sealing cover, effectively preventing probe inner inlet, while its cleverly structure design in such a way that cushion rubber compresses
Also the installation for being very beneficial for probe entirety and coherent signal line is fixed.
7. ultrasonic non-destructive probe according to claim 1, which is characterized in that the detection probe to realize component zonule is whole
Body uses cone shape, still to have use value in the small measured zone in space.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610007332.1A CN105823582B (en) | 2016-01-06 | 2016-01-06 | A kind of short sound path ultrasonic non-destructive probe of deep camber component surface residual stress |
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| CN201610007332.1A CN105823582B (en) | 2016-01-06 | 2016-01-06 | A kind of short sound path ultrasonic non-destructive probe of deep camber component surface residual stress |
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| CN105823582A CN105823582A (en) | 2016-08-03 |
| CN105823582B true CN105823582B (en) | 2019-05-14 |
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| CN106872088B (en) * | 2017-03-09 | 2018-04-24 | 中国石油大学(华东) | Adapt to the ultrasonic stress detecting probe device of different curve |
| CN107328860A (en) * | 2017-07-12 | 2017-11-07 | 华东理工大学 | A kind of lossless detection method of specimen surface residual stress |
| CN107702831A (en) * | 2017-08-31 | 2018-02-16 | 北京金风慧能技术有限公司 | Work status detection method and device |
| CN109883592B (en) * | 2019-03-14 | 2020-08-14 | 北京理工大学 | Dynamic rod residual stress nondestructive testing device |
| CN111678629B (en) * | 2020-06-05 | 2021-10-22 | 北京理工大学 | Ultrasonic monitoring probe for internal service stress of ocean structural member |
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| JPH06258297A (en) * | 1993-03-04 | 1994-09-16 | Japan Steel Works Ltd:The | Ultrasonic material testing device and material testing method by using ultrasonic wave |
| JP4323293B2 (en) * | 2003-11-13 | 2009-09-02 | 三菱電機株式会社 | Ultrasonic flaw detector |
| JP2010236892A (en) * | 2009-03-30 | 2010-10-21 | Toshiba Corp | Ultrasonic stress measuring apparatus and ultrasonic stress measuring method |
| WO2012074997A1 (en) * | 2010-11-29 | 2012-06-07 | Board Of Regents Of The University Of Nebraska | System and method for ultrasonically evaluating structural properties |
| CN103135622A (en) * | 2013-01-21 | 2013-06-05 | 北京理工大学 | Local residual stress ultrasonic testing and closed-loop control device |
| CN103808806A (en) * | 2014-03-12 | 2014-05-21 | 北京理工大学 | Ultrasonic non-destructive testing method for measuring circumference residual stress at gear root |
| CN105158342B (en) * | 2015-09-18 | 2018-03-09 | 中国航空工业集团公司北京航空材料研究院 | A kind of method of ultrasonic water immersion Nondestructive Evaluation residual stress |
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