CN105823582A - Short-sonic-path, ultrasonic and non-destructive probe for surface residual stress of large-curvature member - Google Patents
Short-sonic-path, ultrasonic and non-destructive probe for surface residual stress of large-curvature member Download PDFInfo
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- CN105823582A CN105823582A CN201610007332.1A CN201610007332A CN105823582A CN 105823582 A CN105823582 A CN 105823582A CN 201610007332 A CN201610007332 A CN 201610007332A CN 105823582 A CN105823582 A CN 105823582A
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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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- Life Sciences & Earth Sciences (AREA)
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- Pathology (AREA)
- Acoustics & Sound (AREA)
- Toxicology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention relates to a device for the residual stress ultrasonic measurement of a member that is large in curvature and hard in coupled contact. The device comprises an organic glass wedge, a piezoelectric wafer and a sealing cover. A sensor device realizes the function of a pitch-catch structure and the function of a self-transmitting and self-receiving structure via the piezoelectric wafer. The sensor device is characterized by the short-sonic-path propagation of critically refracted longitudinal waves in a to-be-detected member and the detection function of measuring the spacing and detecting longitudinal and transverse residual stresses. The device is novel in design concept and wide in application prospect. Based on the structure of the device, the residual stress detection problem of members large in curvature and hard in coupled contact in the prior art can be well solved.
Description
One, technical field
The present invention devises a kind of ultrasonic inspection probe being applicable to curvature disaster coupling contact detection means residual stress.This device can inspire critical refraction longitudinal wave and at the short-and-medium acoustical paths of detected component by the non-contacting mode of water coincidence, thus realizes the detection of complex component near surface zonule, surface residual stress.Belong to field of non destructive testing.
Two, background technology
Residual stress is due to uneven stress field, strain field, temperature field and structural heterogenity, the stress remained after deformation in process of metal working.The reliability of mechanical component is had a significant impact by the existence of residual stress, particularly fatigue life, dimensional stability and resistance to corrosion impact on structural member are very big and stress can be caused to concentrate, thus cause material to produce micro-crack, and these crackles cause Materials Fracture under certain condition, thus cause serious accident.Therefore study various situation residual stress measurement to be just particularly important.
Present stage can realize stress analysis to external surface of structural member Magnetic Memory equipment and X-ray stress analysis instrument.Magnetic Memory equipment only can be concentrated by qualitative analysis stress, it is impossible to measures stress value.X-ray stress analysis instrument is difficult to in-site measurement, and has certain harm to human body.Critical refraction longitudinal wave and surface wave counter stress are sensitive, when applying critical refraction longitudinal wave or surface wave to carry out stress mornitoring, in view of the impact of some component curvature, the acoustic beam causing existing contact detection voussoir to be difficult to excite with tested component coupling contact thus wafer is difficult to inspire required waveform through waveform conversion.On the other hand be much detected the demand that the residual stress of its specific tiny area is detected by component in view of the modern times, the residual stress of its zonule can not be detected by existing detection voussoir accurately.The present invention is according to the problems referred to above, design the sensor that the detected component of curvature disaster coupling contact can be carried out residual stress detection, and detection means can detect the distance between sensor and detected component in the residual stress of the vertical and horizontal within zonule simultaneously.The present invention is not only simple in structure, easy to use and also to a certain extent improve detection residual stress efficiency.There is social application prospect widely.
Relative to the most granted patent: it is single that " plate with curved surface residual stress ultrasonic detection transceiver device; application number: CN201110283060 " measures curvature of curved surface, not there is variable curvature curved surface member and the motility of zonule measurement residual stress measurement, on the other hand its invention does not possess and the relevant design thought of modern automation detection, the process causing its detection zones of different is to be completed by the movement of hands, makes detection efficiency be greatly reduced.And mobile accuracy also receives inevitable subjective impact.The method have the characteristics that the residual stress measurement for curved surface has more motility, the steel plate residual stress of different curvature can be measured in the way of noncontact water coincidence.The present invention structurally realizes the detection of short sound path residual stress simultaneously, meets the demand in the detection of curved surface zonule residual stress.Can effectively change the distance of sensor and detected component simultaneously, thus be adjusted flexibly and rub cool scope.On the other hand the present invention is in line with the design philosophy of Aulomatizeted Detect, effectively achieves with the combination of modern industry mechanical hand.Detection efficiency and detection accuracy is caused to be effectively improved.
Three, summary of the invention:
The present invention devises a kind of curvature disaster that is applicable to and places the lossless probe of residual stress ultrasonic measurement of sensor component.This device implements noncontact water coincidence with curved surface and with range finding and vertical and horizontal residual stress detection function, it is ensured that the reliability of measurement result.
The present invention is achieved in that ultrasonic longitudinal wave is the most incident, can inspire critical refraction longitudinal wave in detected component surface and propagate in tested component short distance, it is ensured that the reliability of detection means tiny area.The present invention uses piezoelectric chip as the excitation apparatus of ultrasound wave, it is placed on lucite voussoir and is fixed in movable bracket, it is detected and is fixed on mechanical hand and with robot movement, measuring the distance with blade by piezoelectric patches internal loopback form thus ensure suitable spacing, the stress of the vertical and horizontal of detected component is measured by the most other two groups of piezoelectric chips by one one form received.
Four, accompanying drawing explanation:
Fig. 1Blade surface stress detection device
Accompanying drawingDescription of symbols is as follows: 1, fixed mount 2, seal lid (Fig. 3) 3 detection stress piezoelectric chips 4, water 5, detection curved surface 6, range finding piezoelectric chip 7, lucite voussoir (Fig. 2) 8, fixing screw thread 9, seal groove 10, wire casing
Fig. 2Lucite voussoir is illustratedFigure
Fig. 3Lucite voussoir sealing cover structureFigure
Five, detailed description of the invention:
Below the detailed description of the invention of the present invention is described in detail:
Fig. 1Illustrate for leaf surface residual stress ultrasound detectionFigure, including organic glass wedge block 7 (Fig. 2), capping (Fig. 3), piezoelectric chip 6 of finding range, detects stress piezoelectric chip 3.
When detection means surface residual stress is detected, must be then immersed in water by sensor by being threadedly secured on removable fixed mount in capping.It is detected component to be also immersed in water simultaneously, by movable fixture is control effectively, thus remains that sensor and detected component have suitable interval.Then by other two groups of piezoelectric chip excitation ultrasound ripples successively, thus produce critical refraction longitudinal wave, and make the critical refraction longitudinal wave of generation carry out short-range propagation at the tiny area of detected component, thus detect the horizontal and vertical residual stress of a certain tiny area successively.Then by mobile detected component, the residual stress region of detection required by it is being detected successively.
Claims (7)
1. a deep camber component surface residual stress short sound path ultrasonic non-destructive probe, it is characterized in that: it can be difficult to the component of contact measurement by the way of noncontact water coincidence to the coupling of curvature disaster, prompt critical refracted longitudinal wave, thus realize the measurement of the vertical and horizontal residual stress to its component smaller area.
In the most according to claim 1, the residual stress of detected component smaller area is detected function be the structure by appropriate design lucite voussoir to realize more suitably ultrasound wave angle of incidence and the relative position of piezoelectric chip so that the critical refraction longitudinal wave excited is propagated in detected component short distance.
The most according to claim 1, in, the detection function to detected component vertical and horizontal is the layout by reasonable arrangement lucite voussoir and ultrasound wave isolation channel, makes two groups of piezoelectric chips can realize ultrasonic transmission/reception function successively and non-interference.
The most according to claim 1, in, its residual stress is detected by the component to the coupling of curvature disaster with non-contacting form.It is to pass through the Function detection sensor of internal loopback and the distance of detected component by rationally placement piezoelectric chip.Realize to ensure their optimal spacing.
The most according to claim 1, the component of mean curvature disaster coupling carries out residual stress measurement with non-contacting form to it, it is by reasonable computation ultrasound wave refraction angle between different medium, detection is made thus to change corresponding detection range, so that detection process has more motility while changing detecting distance.
Combine the present invention in the most according to claim 1 by the way of water coincidence, detect designed sealing lid, effectively prevent from inner inlet of popping one's head in, its structure design to be cleverly simultaneously also very beneficial for overall and coherent signal line the installation of probe by the way of utilizing cushion rubber compression to fix.
It is that the detection probe entirety realizing component zonule uses cone shape, still to have use value in the measured zone little in space in the most according to claim 1.
Priority Applications (1)
| 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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| 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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| Publication Number | Publication Date |
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| CN105823582A true CN105823582A (en) | 2016-08-03 |
| CN105823582B CN105823582B (en) | 2019-05-14 |
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| CN201610007332.1A Active 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872088A (en) * | 2017-03-09 | 2017-06-20 | 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 |
| CN109883592A (en) * | 2019-03-14 | 2019-06-14 | 北京理工大学 | Dynamic rod piece residual stress non-destructive testing device |
| CN111678629A (en) * | 2020-06-05 | 2020-09-18 | 北京理工大学 | Ultrasonic monitoring probe for internal service stress of ocean structural member |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872088A (en) * | 2017-03-09 | 2017-06-20 | 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 |
| CN109883592A (en) * | 2019-03-14 | 2019-06-14 | 北京理工大学 | Dynamic rod piece residual stress non-destructive testing device |
| CN109883592B (en) * | 2019-03-14 | 2020-08-14 | 北京理工大学 | Dynamic rod residual stress nondestructive testing device |
| CN111678629A (en) * | 2020-06-05 | 2020-09-18 | 北京理工大学 | Ultrasonic monitoring probe for internal service stress of ocean structural member |
| 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 |
| US11604172B2 (en) | 2020-06-05 | 2023-03-14 | Beijing Institute Of Technology | Ultrasonic monitoring probe for internal service stress of a marine structural component |
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Inventor after: Xu Chunguang Inventor after: Zhang Hanming Inventor after: Li Fei Inventor after: Tian Haibing Inventor after: Wang Junfeng Inventor after: Lv Zhuo Inventor before: Xu Chunguang Inventor before: Li Fei Inventor before: Zhang Hanming Inventor before: Tian Haibing Inventor before: Wang Junfeng Inventor before: Lv Zhuo |
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