CN109959477A - A kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method and system - Google Patents
A kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method and system Download PDFInfo
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- CN109959477A CN109959477A CN201910246754.8A CN201910246754A CN109959477A CN 109959477 A CN109959477 A CN 109959477A CN 201910246754 A CN201910246754 A CN 201910246754A CN 109959477 A CN109959477 A CN 109959477A
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- longitudinal wave
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- internal 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
Abstract
The present invention provides a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method, comprising: (1) sets cuboid for epoxy test block；(2) epoxy test block is compressed, records corresponding stress pressure values；(3) waveform diagram for corresponding to the ultrasonic longitudinal wave of stress loading each time by epoxy test block is obtained；(4) the sound time difference between ultrasound emission wave and ultrasonic reception wave is calculated, the time required to obtaining the ultrasonic longitudinal wave for corresponding to stress loading each time in epoxy test block；(5) ultrasonic sound path is measured, ultrasonic longitudinal wave spread speed in epoxy test block is calculated；(6) internal stress-ultrasonic longitudinal wave matched curve is drawn, epoxy test block sonoelastic coefficient is obtained；(7) it searches and obtains internal stress pressure value caused by being loaded as mechanical stress.The present invention utilizes the ultrasonic longitudinal wave velocity of sound, can detect to quick nondestructive the internal stress pressure values of GIS disc insulator epoxy test block.
Description
Technical field
The present invention relates to detection fields more particularly to a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave to examine
Survey method and system.
Background technique
Internal stress is the stress for being still present in interior of articles with equilibrium state under no external force.Currently, internal stress
Test method be mainly mechanical measurement and physical measurement.Common mechanical measurement has boring method, ring core method and impression
Method etc..It is that its internal stress is measured using the physical property of material that physical measurement, which detects internal stress, mainly there is X-ray at present
Method, photoelastic method and supercritical ultrasonics technology etc..
Workpiece can be damaged when detecting internal stress as the mechanical measurement of representative using boring method and ring core method.X-ray
Diffraction approach is a kind of lossless stress mornitoring method, but X-ray diffraction method can be only applied to the internal stress of measurement crystalline material, right
It can not be measured in the typical amorphous material such as epoxy resin.Photoelastic method is only applicable to transparent elastooptic mateiral, and
Epoxy resin would generally be doped with a large amount of alumina packing in casting, therefore its internal stress can not be measured with photoelastic method.
GIS disc insulator is Cubicle Gas-Insulated Switchgear (Gas-insulated metal-enclosed
Switchgear, abbreviation GIS) in important insulating element, play the role of support, insulation and isolation gas chamber.
Supercritical ultrasonics technology is since its penetration power is strong, directive property is good, and harmless, not damaged to measured object, measuring speed is fast
The features such as and become a kind of critically important nondestructiving detecting means.Supercritical ultrasonics technology be according to Vocal cord injection, i.e., ultrasonic longitudinal wave with
Internal stress is in a linear relationship.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide answer in a kind of GIS disc insulator epoxy test block
Power ultrasonic longitudinal wave detection method.When ultrasonic wave is with perpendicular to stress direction incidence, the present invention according to the ultrasonic longitudinal wave velocity of sound with answer
Power acoustic elasticity formula in a linear relationship completes the curve matching of the ultrasonic longitudinal wave velocity of sound and internal stress, by measuring ultrasonic longitudinal wave
The velocity of sound, in conjunction with internal stress and ultrasonic longitudinal wave velocity of sound matched curve, solution obtains the internal stress number of GIS disc insulator epoxy test block
Value.In the present invention, GIS disc insulator epoxy test block is referred to as epoxy test block.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method, specific steps include:
(1) cuboid is set by epoxy test block；
(2) increase pressure pressure to compress epoxy test block, record corresponding stress pressure values；
(3) waveform for corresponding to the ultrasonic longitudinal wave of stress loading each time by epoxy test block is obtained by reflectoscope
Figure；
(4) according to the waveform diagram of acquisition, ultrasound emission wave and the sound time difference between ultrasonic reception wave is calculated, is corresponded to
In stress loading each time ultrasonic longitudinal wave in epoxy test block the time required to；
(5) ultrasonic sound path is measured, according to velocity of ultrasonic sound formula, calculates ultrasonic longitudinal wave spread speed in epoxy test block；
(6) internal stress pressure and ultrasonic longitudinal wave are subjected to data fitting, draw internal stress-ultrasonic longitudinal wave matched curve, root
Epoxy test block sonoelastic coefficient is obtained according to matched curve and acoustic elasticity formula；
(7) it is obtained according to the velocity of ultrasonic sound value of actual measurement and the internal stress of fitting-ultrasonic longitudinal wave matched curve, lookup
Internal stress pressure value caused by being loaded as mechanical stress.
Specifically, a length of 45mm of the cuboid, width 30mm, a height of 35mm.
Specifically, in the step (2), increase the pressure pressure of epoxy test block by the stress gradient increment of 5MPa, increase
Stop when to 100MPa.
Preferably, the coupling contacted using water as the ultrasonic probe of reflectoscope and epoxy test block in the step (3)
Mixture.
Specifically, in the step (5), ultrasonic sound path is the thickness of the epoxy test block along transonic direction, this direction
Thickness can increase with the increase of compressing force；Epoxy sample is surveyed along transonic direction elongation deformation quantity using foil gauge
Amount.
Specifically, the velocity of ultrasonic sound formula are as follows:
V=L/t
Wherein, L indicates that ultrasonic longitudinal wave sound path, t indicate ultrasonic longitudinal wave propagation time in test block.
Specifically, the acoustic elasticity formula are as follows:
(V-V0)/V0=k σ
Wherein, V indicates the ultrasonic longitudinal wave velocity of sound, V0Indicate the ultrasonic longitudinal wave velocity of sound under unstress state, k indicates acoustic elasticity system
Number, σ indicate internal stress.
The second object of the present invention is to provide a kind of epoxy test block internal stress ultrasonic longitudinal wave detection system.
Epoxy test block internal stress ultrasonic longitudinal wave detection system, including universal tensile testing machine pressurizing device, reflectoscope,
Oscillograph, strain gauge and computer.
The universal tensile testing machine pressurizing device, for being compressed to epoxy test block, by certain stress gradient increment
Increase pressure pressure；
The reflectoscope, including ultrasonic longitudinal wave transmitting probe and ultrasonic longitudinal wave receiving transducer, for being corresponded to
The ultrasonic longitudinal wave of stress loading passes through the waveform diagram of epoxy test block each time；
The oscillograph is connected with reflectoscope, for being acquired and analyzing to ultrasonic waveform；
Shown strain gauge, by foil gauge measurement in epoxy test block along the elongation deformation quantity of ultrasonic sound path；
The computer, for calculating the sound time difference between ultrasound emission wave and ultrasonic reception wave；It calculates in epoxy test block
Ultrasonic longitudinal wave spread speed；Internal stress pressure and the ultrasonic longitudinal wave velocity of sound are subjected to data fitting, draw internal stress-ultrasonic longitudinal wave sound
Fast matched curve.
Specifically, the reflectoscope receives mode using a hair one, and ultrasonic original transmitted wave is issued by transmitting probe, worn
It is received after crossing epoxy sample by receiving transducer, the direction of propagation of ultrasonic longitudinal wave is perpendicular to stress added by universal tensile testing machine.
Specifically, because knots modification is the oscillography of 5GS/s using maximum sample rate in nanosecond when sound caused by stress
Device.
The present invention compared to the prior art, have it is below the utility model has the advantages that
The present invention utilizes the ultrasonic longitudinal wave velocity of sound, can detect to quick nondestructive the interior of GIS disc insulator epoxy test block
Stress pressure values.
Detailed description of the invention
Fig. 1 is the flow chart of epoxy test block internal stress ultrasonic longitudinal wave detection method in the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of epoxy test block internal stress ultrasonic longitudinal wave detection system in the embodiment of the present invention.
Fig. 3 is the ultrasonic longitudinal wave direction of propagation and stress loading direction schematic diagram in the embodiment of the present invention.
Fig. 4 is internal stress-ultrasonic longitudinal wave rate curve fitted figure in the embodiment of the present invention.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment
It is as shown in Figure 1 the flow chart of epoxy test block internal stress ultrasonic longitudinal wave detection method, specific steps include:
(1) cuboid is set by epoxy test block；
(2) increase pressure pressure to compress epoxy test block, record corresponding stress pressure values；
(3) waveform for corresponding to the ultrasonic longitudinal wave of stress loading each time by epoxy test block is obtained by reflectoscope
Figure；
(4) according to the waveform diagram of acquisition, ultrasound emission wave and the sound time difference between ultrasonic reception wave is calculated, is corresponded to
In stress loading each time ultrasonic longitudinal wave in epoxy test block the time required to；
(5) ultrasonic sound path is measured, according to velocity of ultrasonic sound formula, calculates ultrasonic longitudinal wave spread speed in epoxy test block；
(6) internal stress pressure and ultrasonic longitudinal wave are subjected to data fitting, draw internal stress-ultrasonic longitudinal wave matched curve, root
Epoxy test block sonoelastic coefficient is obtained according to matched curve and acoustic elasticity formula；
(7) it is obtained according to the velocity of ultrasonic sound value of actual measurement and the internal stress of fitting-ultrasonic longitudinal wave matched curve, lookup
Internal stress pressure value caused by being loaded as mechanical stress.
The cuboid is as shown in figure 3, a length of 45mm, width 30mm, a height of 35mm.
Specifically, in the step (2), increase the pressure pressure of epoxy test block by the stress gradient increment of 5MPa, increase
Stop when to 100MPa.
Preferably, the coupling contacted using water as the ultrasonic probe of reflectoscope and epoxy test block in the step (3)
Mixture.
Specifically, in the step (5), epoxy sample is carried out along transonic direction tensile deformation amount using foil gauge
Measurement.
Specifically, the velocity of ultrasonic sound formula are as follows:
V=L/t
Wherein, L indicates that ultrasonic longitudinal wave sound path, t indicate ultrasonic longitudinal wave propagation time in test block.
Specifically, the acoustic elasticity formula are as follows:
(V-V0)/V0=k σ
Wherein, V indicates the ultrasonic longitudinal wave velocity of sound, V0Indicate the ultrasonic longitudinal wave velocity of sound under unstress state, k indicates acoustic elasticity system
Number, σ indicate internal stress.
In the present embodiment, the internal stress of acquisition-ultrasonic longitudinal wave velocity of sound matched curve is as shown in Figure 4.
It is illustrated in figure 2 the schematic diagram of epoxy test block internal stress ultrasonic longitudinal wave detection system, including universal tensile testing machine
Pressurizing device, reflectoscope, oscillograph and computer.
The universal tensile testing machine pressurizing device, for being compressed to epoxy test block, by certain stress gradient increment
Increase pressure pressure；
The reflectoscope, including ultrasonic longitudinal wave transmitting probe and ultrasonic longitudinal wave receiving transducer, for being corresponded to
The ultrasonic longitudinal wave of stress loading passes through the waveform diagram of epoxy test block each time；
The oscillograph is connected with reflectoscope, for being acquired and analyzing to ultrasonic waveform；
Shown strain gauge, by foil gauge measurement in epoxy test block along the elongation deformation quantity of ultrasonic sound path.
The computer, for calculating the sound time difference between ultrasound emission wave and ultrasonic reception wave；It calculates in epoxy test block
Ultrasonic longitudinal wave spread speed；Internal stress pressure and the ultrasonic longitudinal wave velocity of sound are subjected to data fitting, draw internal stress-ultrasonic longitudinal wave sound
Fast matched curve.
Specifically, the reflectoscope receives mode using a hair one, and ultrasonic original transmitted wave is issued by transmitting probe, worn
It is received after crossing epoxy sample by receiving transducer, the direction of propagation of ultrasonic longitudinal wave is perpendicular to stress added by universal tensile testing machine.
Specifically, because knots modification is the oscillography of 5GS/s using maximum sample rate in nanosecond when sound caused by stress
Device.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method, which is characterized in that specific steps packet
It includes:
(1) cuboid is set by epoxy composite material test block；
(2) increase pressure pressure to compress epoxy test block, record corresponding stress pressure values；
(3) waveform diagram for corresponding to the ultrasonic longitudinal wave of stress loading each time by epoxy test block is obtained by reflectoscope；
(4) according to the waveform diagram of acquisition, time interval between ultrasound emission wave wave crest and ultrasonic reception wave wave crest is measured, is obtained every
The time required to ultrasonic longitudinal wave is in epoxy test block when primary stress loads；
(5) ultrasonic sound path is measured, further according to velocity of ultrasonic sound formula, calculates ultrasonic longitudinal wave spread speed in epoxy test block；
(6) internal stress pressure and ultrasonic longitudinal wave are subjected to data fitting, draw internal stress-ultrasonic longitudinal wave matched curve, according to quasi-
It closes curve and acoustic elasticity formula obtains epoxy test block sonoelastic coefficient；
(7) according to the velocity of ultrasonic sound value of actual measurement and internal stress-ultrasonic longitudinal wave matched curve, lookup is obtained by mechanical stress
Internal stress pressure value caused by load.
2. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method according to claim 1, special
Sign is, a length of 45mm of the cuboid, width 30mm, a height of 35mm.
3. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method according to claim 1, special
Sign is, in the step (2), increases the pressure pressure of epoxy test block by the stress gradient increment of 5MPa, increases to 100MPa
When stop.
4. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method according to claim 1, special
Sign is, uses water as the couplant of the ultrasonic probe of reflectoscope and epoxy test block contact in the step (3).
5. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method according to claim 1, special
Sign is, in the step (5), is measured to epoxy sample along transonic direction tensile deformation amount using foil gauge.
6. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method according to claim 1, special
Sign is, the velocity of ultrasonic sound formula are as follows:
V=L/t
Wherein, L indicates that ultrasonic longitudinal wave sound path, t indicate ultrasonic longitudinal wave propagation time in test block.
7. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method according to claim 1, special
Sign is, the acoustic elasticity formula are as follows:
(V-V0)/V0=k σ
Wherein, V indicates the ultrasonic longitudinal wave velocity of sound, V0Indicate the ultrasonic longitudinal wave velocity of sound under unstress state, k indicates sonoelastic coefficient, σ
Indicate internal stress.
8. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method for realizing in claim 1-7
System, which is characterized in that including universal tensile testing machine pressurizing device, reflectoscope, oscillograph, strain gauge and
Computer；
The universal tensile testing machine pressurizing device is increased for compressing to epoxy test block by certain stress gradient increment
Pressure pressure；
The reflectoscope, including ultrasonic longitudinal wave transmitting probe and ultrasonic longitudinal wave receiving transducer, for obtaining corresponding to each
The ultrasonic longitudinal wave of secondary stress load passes through the waveform diagram of epoxy test block；
The oscillograph is connected with reflectoscope, for being acquired and analyzing to ultrasonic waveform；
Shown strain gauge, by the foil gauge measurement in epoxy test block along the elongation deformation quantity of ultrasonic sound path；
The computer, for calculating the sound time difference between ultrasound emission wave and ultrasonic reception wave；Calculate ultrasound in epoxy test block
The spread speed of longitudinal wave；Internal stress pressure and the ultrasonic longitudinal wave velocity of sound are subjected to data fitting, draw internal stress-ultrasonic longitudinal wave velocity of sound
Matched curve.
9. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection system according to claim 8, special
Sign is that the reflectoscope receives mode using a hair one, and ultrasonic original transmitted wave is issued by transmitting probe, passes through epoxy and tries
It is received after sample by receiving transducer, the direction of propagation of ultrasonic longitudinal wave is perpendicular to stress added by universal tensile testing machine.
10. a kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection system according to claim 8,
It is characterized in that, uses maximum sample rate for the oscillograph of 5GS/s.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531233A (en) * | 2019-09-25 | 2019-12-03 | 国网陕西省电力公司电力科学研究院 | GIS disc insulator surface state detection device and method based on ultrasonic wave injection |
| CN112033588A (en) * | 2020-08-19 | 2020-12-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Vertical stress detection method of epoxy test block based on ultrasonic longitudinal wave reflection |
| CN112067179A (en) * | 2020-08-19 | 2020-12-11 | 南方电网科学研究院有限责任公司 | Sub-surface stress detection system of epoxy test block |
| CN112066920A (en) * | 2020-08-31 | 2020-12-11 | 南方电网科学研究院有限责任公司 | Method and device for detecting strain of three-post insulator column foot and medium |
| CN112630611A (en) * | 2020-12-14 | 2021-04-09 | 华南理工大学 | Test method for detecting uniformity of basin-type insulator by ultrasonic longitudinal wave reflection method |
| CN112903082A (en) * | 2021-03-05 | 2021-06-04 | 西安热工研究院有限公司 | Device and method for measuring longitudinal wave sound velocity at high temperature |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865952A (en) * | 2012-09-13 | 2013-01-09 | 许锡宾 | Nondestructive testing method for working stress of concrete |
| CN103543206A (en) * | 2013-11-01 | 2014-01-29 | 中国航空工业集团公司北京航空材料研究院 | Method for carrying out ultrasonic inspection on residual stress of aluminium alloy pre-stretching board by water immersion |
| US20140029726A1 (en) * | 2012-07-25 | 2014-01-30 | Rigaku Corporation | X-ray stress measurement method and apparatus |
| 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 |
| CN104142195A (en) * | 2014-04-30 | 2014-11-12 | 李祚华 | Device and method for detecting interior initial stress of steel structural member based on ultrasonic method |
| CN105571752A (en) * | 2016-01-08 | 2016-05-11 | 中国科学院声学研究所 | Ultrasonic stress quantification measuring method for photoelasticity experiment |
| CN205484211U (en) * | 2016-03-31 | 2016-08-17 | 西南交通大学 | Ultrasonic wave residual stress test instrument |
| CN105910742A (en) * | 2016-07-01 | 2016-08-31 | 南京中车浦镇城轨车辆有限责任公司 | Ultrasonic residual stress test surface positioning coupling device |
| CN106679872A (en) * | 2017-01-25 | 2017-05-17 | 大连理工大学 | Surface residual stress ultrasonic detection method capable of achieving direct coupling wave generation |
| CN106802202A (en) * | 2017-03-15 | 2017-06-06 | 哈尔滨工业大学 | A kind of method for measuring anisotropic material plane stress |
| CN106813819A (en) * | 2017-04-05 | 2017-06-09 | 西南交通大学 | A kind of method that supercritical ultrasonics technology measures curve surface work pieces residual stress |
| CN107084810A (en) * | 2016-02-15 | 2017-08-22 | 北京理工大学 | A kind of detection means of residual stress |
| CN108168746A (en) * | 2018-01-05 | 2018-06-15 | 陈文� | Pipe is in the ultrasonic inspection system and method for uniaxial stress |
| US10451522B2 (en) * | 2016-07-27 | 2019-10-22 | A & D Company, Limited | Engine test apparatus |
-
2019
- 2019-03-29 CN CN201910246754.8A patent/CN109959477B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140029726A1 (en) * | 2012-07-25 | 2014-01-30 | Rigaku Corporation | X-ray stress measurement method and apparatus |
| CN102865952A (en) * | 2012-09-13 | 2013-01-09 | 许锡宾 | Nondestructive testing method for working stress of concrete |
| CN103543206A (en) * | 2013-11-01 | 2014-01-29 | 中国航空工业集团公司北京航空材料研究院 | Method for carrying out ultrasonic inspection on residual stress of aluminium alloy pre-stretching board by water immersion |
| 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 |
| CN104142195A (en) * | 2014-04-30 | 2014-11-12 | 李祚华 | Device and method for detecting interior initial stress of steel structural member based on ultrasonic method |
| CN105571752A (en) * | 2016-01-08 | 2016-05-11 | 中国科学院声学研究所 | Ultrasonic stress quantification measuring method for photoelasticity experiment |
| CN107084810A (en) * | 2016-02-15 | 2017-08-22 | 北京理工大学 | A kind of detection means of residual stress |
| CN205484211U (en) * | 2016-03-31 | 2016-08-17 | 西南交通大学 | Ultrasonic wave residual stress test instrument |
| CN105910742A (en) * | 2016-07-01 | 2016-08-31 | 南京中车浦镇城轨车辆有限责任公司 | Ultrasonic residual stress test surface positioning coupling device |
| US10451522B2 (en) * | 2016-07-27 | 2019-10-22 | A & D Company, Limited | Engine test apparatus |
| CN106679872A (en) * | 2017-01-25 | 2017-05-17 | 大连理工大学 | Surface residual stress ultrasonic detection method capable of achieving direct coupling wave generation |
| CN106802202A (en) * | 2017-03-15 | 2017-06-06 | 哈尔滨工业大学 | A kind of method for measuring anisotropic material plane stress |
| CN106813819A (en) * | 2017-04-05 | 2017-06-09 | 西南交通大学 | A kind of method that supercritical ultrasonics technology measures curve surface work pieces residual stress |
| CN108168746A (en) * | 2018-01-05 | 2018-06-15 | 陈文� | Pipe is in the ultrasonic inspection system and method for uniaxial stress |
Non-Patent Citations (2)
| Title |
|---|
| 杨九九，董师润，魏勤: "《用超声纵波测试材料45#钢内部的载荷应力》", 《江苏科技大学学报（自然科学版）》 * |
| 魏勤，罗琅，张礼华: "《超声纵波法测试铝合金内部的载荷应力》", 《无损检测》 * |
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| CN110531233A (en) * | 2019-09-25 | 2019-12-03 | 国网陕西省电力公司电力科学研究院 | GIS disc insulator surface state detection device and method based on ultrasonic wave injection |
| CN112033588B (en) * | 2020-08-19 | 2022-04-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Vertical stress detection method of epoxy test block based on ultrasonic longitudinal wave reflection |
| CN112033588A (en) * | 2020-08-19 | 2020-12-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Vertical stress detection method of epoxy test block based on ultrasonic longitudinal wave reflection |
| CN112067179A (en) * | 2020-08-19 | 2020-12-11 | 南方电网科学研究院有限责任公司 | Sub-surface stress detection system of epoxy test block |
| CN112066920A (en) * | 2020-08-31 | 2020-12-11 | 南方电网科学研究院有限责任公司 | Method and device for detecting strain of three-post insulator column foot and medium |
| CN112630611A (en) * | 2020-12-14 | 2021-04-09 | 华南理工大学 | Test method for detecting uniformity of basin-type insulator by ultrasonic longitudinal wave reflection method |
| CN112630611B (en) * | 2020-12-14 | 2022-04-22 | 华南理工大学 | Test method for detecting uniformity of basin-type insulator by ultrasonic longitudinal wave reflection method |
| CN113310610A (en) * | 2020-12-31 | 2021-08-27 | 华南理工大学 | Ultrasonic detection method for peripheral epoxy stress of three-post insulator insert |
| CN112903082A (en) * | 2021-03-05 | 2021-06-04 | 西安热工研究院有限公司 | Device and method for measuring longitudinal wave sound velocity at high temperature |
| CN114323375A (en) * | 2021-05-12 | 2022-04-12 | 国网山西省电力公司电力科学研究院 | GIS basin-type insulator flange stress detection method and system |
| CN113639912A (en) * | 2021-07-30 | 2021-11-12 | 华南理工大学 | Method, device and system for detecting column leg stress under radial load of three-column insulator |
| CN113654702A (en) * | 2021-09-09 | 2021-11-16 | 南方电网科学研究院有限责任公司 | Method for detecting residual stress of GIS basin-type insulator |
| CN113654702B (en) * | 2021-09-09 | 2024-04-16 | 南方电网科学研究院有限责任公司 | Method for detecting residual stress of GIS basin-type insulator |
| CN114295265A (en) * | 2021-09-15 | 2022-04-08 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and system for detecting normal internal thermal stress of GIS basin-type insulator |
| CN114295265B (en) * | 2021-09-15 | 2023-11-14 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and system for detecting normal internal thermal stress of GIS basin-type insulator |
| CN113686965A (en) * | 2021-09-16 | 2021-11-23 | 南方电网科学研究院有限责任公司 | GIS basin-type insulator subsurface thermal stress ultrasonic detection method and system |
| CN113686965B (en) * | 2021-09-16 | 2023-12-19 | 南方电网科学研究院有限责任公司 | Ultrasonic detection method and system for subsurface thermal stress of GIS basin-type insulator |
| CN115629130A (en) * | 2022-12-21 | 2023-01-20 | 国网天津市电力公司电力科学研究院 | Imaging method and system for residual stress of basin-type insulator and test block preparation method |
| CN116183722A (en) * | 2023-04-26 | 2023-05-30 | 国网天津市电力公司电力科学研究院 | Method for eliminating thickness measurement error of epoxy resin insulating part based on double-frequency detection |
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