CN112485334A - Method for distinguishing shapes of phased array ultrasonic detection parts of blade roots and blade roots in real time - Google Patents
Method for distinguishing shapes of phased array ultrasonic detection parts of blade roots and blade roots in real time Download PDFInfo
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- 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
- G01N29/04—Analysing solids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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- 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
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- 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
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- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
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Abstract
The invention discloses a method for distinguishing the shape of a phased array ultrasonic detection component of a blade root of a moving blade in real time, which comprises the following steps: step 1: reversely mapping the outline dimension of the moving blade, and leading the moving blade into a drawing module; step 2: starting detection by adopting a tool to obtain real-time position information of the moving ultrasonic probe relative to the moving blade; and 3, step 3: guiding the position information into a drawing module, and cutting the moving blade in real time according to the position information; and 4, step 4: synchronously guiding the ultrasonic echo signal view and the tangent plane shape contour map into an analysis module in real time; and 5, step 5: and identifying and judging the inherent echo signal and the crack signal of the blade root. The invention can realize real-time introduction of the profile shape of the moving blade according to the position information of the probe in the scanning process when the phased array ultrasonic detection of the blade root of the moving blade of the gas compressor is carried out, realize the whole-process, real-time, quick and accurate distinguishing of the crack signal and the inherent interference signal of the blade root of the moving blade, and greatly improve the detection efficiency and the intuitiveness and the reliability of the detection result.
Description
Technical Field
The invention belongs to the technical field of ultrasonic nondestructive testing, and particularly relates to a method for distinguishing the shape of a phased array ultrasonic testing part of a moving blade root in real time.
Background
The moving blade of the gas compressor is a core component of the gas compressor for applying work to gas at the inlet of the gas turbine and consists of a blade body and a blade root, wherein the blade body is a part of the blade interacting with airflow, and the blade root is a part of the blade assembled in a rotor disk groove, and a dovetail blade root is generally adopted. The moving blades of the gas compressor are subjected to complex alternating stress in the service process of a rotating machine, and crack defects are easily generated at the variable cross-section positions of the back arc surface and the inner arc surface of the dovetail-shaped blade root, so that the safe and stable operation of a unit is seriously influenced. Therefore, in order to ensure the safe reliability of the compressor moving blade of the gas turbine, the nondestructive detection of the blade root of the compressor moving blade is very necessary. Particularly, under the condition that the moving blade is not disassembled and overhauled, the effective detection of the crack defects of the blade roots of the inner arc surface and the back arc surface becomes the key point concerned by research and development personnel of the operation and maintenance technology of the current combustion engine.
The phased array ultrasonic detection has the advantages of being not easily limited by the shape and the size of components, strong in field adaptability, capable of realizing deflection and focusing of sound beams, capable of imaging in various views and the like, and is very suitable for on-site non-disassembly in-situ detection of the blade root of the moving blade of the gas compressor with a complex structure. However, because the blade root of the moving blade of the compressor is of a dovetail complex structure, a large number of structural inherent echoes exist in a phased array detection result, and the effective judgment of a crack interference signal is interfered. However, as the blade body of the moving blade is of a large-curvature variable-section torsion structure, and the shape of the blade root is also of a variable-section structure, the blade body and the shape profile of the blade root of the axial section of the sound beam of the phased array ultrasonic probe constantly change along with the movement of the probe in the scanning process from the air inlet side to the air outlet side, and the change amplitude is large. Therefore, for the phased array ultrasonic detection of the blade root of the moving blade, the preset fixed blade root shape outline drawing is adopted to assist in distinguishing the inherent echo and the crack defect echo of the blade root, so that the shape dislocation is generated, the signal misjudgment is easily caused, and the auxiliary judgment can hardly be carried out on the position with large shape change.
Therefore, a method for distinguishing the shape of the moving blade and blade root phased array ultrasonic detection component in real time is developed, the limitations that crack signals are misjudged and partial positions cannot be distinguished in an auxiliary mode due to the fact that the existing moving blade phased array ultrasonic detection presets a fixed shape outline are solved, and the problem that efficient and reliable gas turbine compressor moving blade and blade root phased array ultrasonic detection is needed to be solved in the machine set near-stop period is solved.
Disclosure of Invention
The invention aims to provide a method for distinguishing the shape of a phased array ultrasonic detection part of a moving blade root in real time for the moving blade root of a gas turbine compressor, aiming at the limitations that the shape is misplaced to cause signal misjudgment and certain positions cannot be judged in an auxiliary way when the ultrasonic detection result of the moving blade root phased array of the gas turbine compressor is judged in an auxiliary way by adopting a preset fixed shape outline at present, so that the outline shape of the moving blade on the axial section of a sound beam can be led in real time according to the position information of a probe in the scanning process of the probe, the whole course, real-time, quick and accurate distinguishing of a crack signal and an inherent interference signal in the ultrasonic detection result of the moving blade root phased array can be realized, and the detection efficiency.
The invention is realized by adopting the following technical scheme:
a method for distinguishing the shape of a phased array ultrasonic detection component of a moving blade root in real time comprises the following steps:
step 1: obtaining an outline dimension model of the detected compressor moving blade through reverse mapping, and leading the outline dimension model into a drawing module;
step 2: designing a tool, mounting the tool on a moving blade, starting detection, and obtaining real-time position information of a phased array ultrasonic probe moving in the detection process relative to the detected moving blade, wherein the position information comprises the axial position of the probe from an air inlet edge to an air outlet edge of the moving blade, the radial position from a blade root to a blade top, the circumferential position from an inner arc surface to a back arc surface, the rotation angle information of the probe in a Y axis and the rotation angle information of the probe in a Z axis; the axial position is defined as an X axis, the radial position is defined as a Z axis, the circumferential position is defined as a Y axis, the rotation angle information of the probe on the Y axis is defined as dimension a, and the rotation angle information of the probe on the Z axis is defined as dimension b;
and 3, step 3: importing real-time position information of the phased array ultrasonic probe into a drawing module, and performing real-time section cutting on the movable vane size model according to the position information to obtain a real-time movable vane shape contour map of the corresponding position of the movable phased array ultrasonic probe;
and 4, step 4: synchronously guiding an ultrasonic echo signal view in the phased array ultrasonic detector and a moving blade section shape contour map in a drawing module into an analysis module in real time;
and 5, step 5: and rapidly identifying and accurately judging the inherent echo signal and the crack defect signal of the blade root of the moving blade according to the shape contour diagram of the moving blade in an analysis module.
The invention is further improved in that the reverse mapping technology in the step 1 comprises a three-coordinate measuring technology, a laser scanning technology, a projection grating measuring technology, a computer tomography technology and a stereoscopic vision measuring technology.
The invention has the further improvement that the tool in the step 2 comprises a moving blade intrados blade root ultrasonic detection tool and a back-arc blade root ultrasonic detection tool, the tool has the functions of full-automatic scanning and real-time extraction of stroke position information, and the phased array ultrasonic probe is a linear array transverse wave oblique probe or a linear array longitudinal wave straight probe.
The invention has the further improvement that in the step 2, the stroke information graduation in the position information is below millimeter level, and the angle information graduation is below degree level.
The invention has the further improvement that in the step 2, the position information takes the incident point of the sound wave in the wedge block of the phased array ultrasonic probe as a positioning point.
In a further improvement of the invention, the axial point of the real-time section in step 3 is the intersection point of the probe at the X, Y, Z axial position, and the section is determined by the probe in the dimension a and the dimension b.
The further improvement of the invention is that the ultrasonic echo signal view in the step 4 comprises a B \ C \ D \ S view which is mainly an S view, namely a sector display image.
The invention is further improved in that in the step 5, the moving blade root comprises an intrados root and a dorsal root.
The invention has at least the following beneficial technical effects:
the invention provides a method for distinguishing the shape of a phased array ultrasonic detection part of a moving blade root, which can realize the real-time introduction of the profile shape of a moving blade on the axial section of a sound beam in real time according to the position information of a probe in the scanning process when the phased array ultrasonic detection is carried out on the moving blade root of a gas turbine compressor during the temporary stop period of a unit, realize the whole-process, real-time, quick and accurate distinguishing of a crack signal and an inherent interference signal in the phased array ultrasonic detection result of the moving blade root, and greatly improve the detection efficiency and the intuition and reliability of the detection result.
Drawings
FIG. 1 is a flow chart of a method for real-time discrimination of the shape of a phased array ultrasonic detection component of a moving blade root.
FIG. 2 is a moving blade shape diagram in the moving blade root phased array ultrasonic detection component shape real-time discrimination method of the invention.
FIG. 3 is a real-time sectional shape contour diagram of a moving blade in the method for real-time determination of the shape of a phased array ultrasonic inspection component of a moving blade root according to the present invention.
FIG. 4 is a diagram of a back arc surface blade root crack defect signal and an inherent structure echo signal in the method for real-time shape discrimination of a phased array ultrasonic detection component of a moving blade and a blade root of the invention.
FIG. 5 is a sectional position information diagram in the method for real-time shape discrimination of a phased array ultrasonic testing component for a moving blade or a blade root according to the present invention.
FIG. 6 is a diagram of an intrados root crack defect signal and an inherent structure echo signal in the method for real-time shape discrimination of a phased array ultrasonic testing component for a moving blade root according to the present invention.
Description of reference numerals:
1. the outline dimension of the moving blade, 2, a section outline drawing, 3, a section position drawing, 4, a back cambered surface blade root platform imaging drawing, and 5, an inner cambered surface blade root platform imaging drawing.
101. An intrados blade root platform 102, a back-arc blade root platform 103, a blade body back-arc surface 104 and a blade body intrados surface; 201. scanning paths of a back cambered surface blade root detection probe, 202, scanning paths of an inner cambered surface blade root detection probe, 203 and a single tangent plane profile diagram; 301. radial position (Z axis) from blade root to blade top, 302, axial position (X axis) from inlet edge to outlet edge of moving blade, 303, circumferential position (Y axis) from inner cambered surface to back cambered surface, 304, rotation angle information (dimension b) on Z axis, 305, and rotation angle information (dimension a) on Y axis; 401. extracting a shape contour diagram of the rear moving blade by back arc surface blade root detection, 402, scanning a view S by back arc surface blade root phased array ultrasonic detection, 403, an echo signal of an inherent structure of the back arc surface blade root, 404 and a crack defect signal of the back arc surface blade root; 501. and (3) detecting and extracting a shape contour drawing of the moving blade after the detection of the inner arc surface blade root, 502, an ultrasonic detection S scanning view of the inner arc surface blade root phased array, 503, an echo signal of an inherent structure of the inner arc surface blade root, 504 and a crack defect signal of the inner arc surface blade root.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
Example 1
Referring to the attached drawings 1, 2, 3, 4 and 5, the invention provides a method for distinguishing the shape of a phased array ultrasonic detection part of a moving blade root in real time, which is characterized by comprising the following steps:
step 1: obtaining an outline dimension model of a 1 st-stage moving blade of a gas compressor of a certain model of a gas turbine through reverse surveying and mapping, and leading the outline dimension model into a charting module (see figure 2); in the figure, 1 is the external dimension of the moving blade, 101 is an intrados blade root platform, 102 is a back-arc blade root platform, 103 is a blade body back-arc surface, and 104 is a blade body intrados surface;
step 2: designing a moving blade back arc surface blade root ultrasonic detection tool, installing the tool on the surface of a moving blade inner arc surface blade body, connecting a 32-array-element linear array phased array ultrasonic probe into a phased array ultrasonic detector host machine with the specification of 32/128 channels, starting detection, automatically scanning the ultrasonic probe along the air inlet edge of the moving blade to the air outlet edge, and enabling the tool to real-timely detect the position information of the moving ultrasonic probe relative to the detected moving blade, wherein the position information comprises the axial position (defined as an X axis) of the probe from the air inlet edge of the moving blade to the air outlet edge, the radial position (defined as a Z axis) of the probe from a moving blade inner arc surface blade root platform, the circumferential position (defined as a Y axis) of the probe from the inner arc surface to the back arc surface, the rotation angle information (defined as dimension a) of the probe on the Y;
and 3, step 3: guiding real-time position information of the phased array ultrasonic probe into a drawing module, and performing real-time section cutting on the 1 st-stage moving blade size model according to the position information to obtain a real-time 1 st-stage moving blade shape contour map of the corresponding position of the moving phased array ultrasonic probe (see the attached figure 3); in the figure, 2 is a profile diagram of a tangent plane, 201 is a scanning path of a blade root detection probe of a back arc surface, 202 is a scanning path of a blade root detection probe of an inner arc surface, and 203 is a profile diagram of a single tangent plane;
and 4, step 4: synchronously and real-timely guiding an S scanning view of an ultrasonic echo signal in the phased array ultrasonic detector and a 1 st-stage moving blade section shape contour map in a mapping module into an analysis module;
and 5, step 5: and (3) carrying out rapid identification and accurate judgment on the inherent echo signal and the crack defect signal of the blade root of the back arc surface of the stage 1 moving blade in an analysis module according to the shape profile of the stage 1 moving blade (see the attached figure 4). In the figure, 4 is an imaging diagram of a platform of a blade root with a back arc surface, 401 is a profile diagram of a moving blade after detection and extraction of the blade root with the back arc surface, 402 is a scanning view of phased array ultrasonic detection S of the blade root with the back arc surface, 403 is an echo signal of an inherent structure of the blade root with the back arc surface, and 404 is a crack defect signal of the blade root with the back arc surface.
In this embodiment, the reverse mapping technique in step 1 is a laser scanning technique.
In this embodiment, the tool in step 2 is an ultrasonic detection tool for the blade root of the back arc surface of the moving blade, the tool has the functions of full-automatic scanning and real-time extraction of stroke position information, and the phased array ultrasonic probe is a linear array transverse wave oblique probe.
In this embodiment, in the position information in step 2, the stroke information is divided into millimeters, and the angle information is divided into degrees.
In this embodiment, the position information in step 2 is all positioning points of incidence points of sound waves in a wedge of the phased array ultrasonic probe.
In this embodiment, the axial point of the real-time slice in step 3 is the intersection point of the probe at the X, Y, Z axial position, and the slice is determined by the angle determined by the probe in the dimensions a and b (see fig. 5). In the figure, 3 is a tangent plane position diagram, 301 is the radial position (Z axis) from the blade root to the blade tip, 302 is the axial position (X axis) from the inlet edge to the outlet edge of the moving blade, 303 is the circumferential position (Y axis) from the intrados to the extrados, 304 is the rotation angle information (dimension b) on the Z axis, 305 is the rotation angle information (dimension a) on the Y axis;
in this embodiment, the view of the ultrasonic echo signal in step 4 is an S-view, that is, a sector display.
In this embodiment, in step 5, the moving blade root is a back-cambered surface root.
Example 2
Referring to the attached drawings 1, 2, 3 and 6, the invention provides a method for distinguishing the shape of a phased array ultrasonic detection part of a moving blade root in real time, which is characterized by comprising the following steps:
step 1: obtaining an outline dimension model of a 1 st-stage moving blade of a gas compressor of a certain model of a gas turbine through reverse surveying and mapping, and leading the outline dimension model into a charting module (see figure 2); in the figure, 1 is the external dimension of the moving blade, 101 is an intrados blade root platform, 102 is a back-arc blade root platform, 103 is a blade body back-arc surface, and 104 is a blade body intrados surface;
step 2: designing a moving blade intrados blade root ultrasonic detection tool, installing the tool on a moving blade intrados and back-arc blade root platform, connecting a linear array phased array ultrasonic probe with 16 array elements into a phased array ultrasonic detector host with the specification of 16/64 channels, starting detection, automatically scanning the ultrasonic probe from an air inlet side to an air outlet side along the edge of the moving blade root platform by driving, and carrying out real-time position information of the moving ultrasonic probe relative to the detected moving blade by the tool, wherein the position information comprises the axial position (defined as an X axis) of the probe from the air inlet side to the air outlet side of the moving blade, the radial position (defined as a Z axis) of the probe from the moving blade intrados blade root platform, and the circumferential position (defined as a Y axis) of the probe from the edge of the moving blade;
and 3, step 3: guiding real-time position information of the phased array ultrasonic probe into a drawing module, and performing real-time section cutting on the 1 st-stage moving blade size model according to the position information to obtain a real-time 1 st-stage moving blade shape contour map of the corresponding position of the moving phased array ultrasonic probe (see the attached figure 3); in the figure, 2 is a profile diagram of a tangent plane, 201 is a scanning path of a blade root detection probe of a back arc surface, 202 is a scanning path of a blade root detection probe of an inner arc surface, and 203 is a profile diagram of a single tangent plane;
and 4, step 4: synchronously and real-timely guiding an S scanning view of an ultrasonic echo signal in the phased array ultrasonic detector and a 1 st-stage moving blade section shape contour map in a mapping module into an analysis module;
and 5, step 5: and (3) carrying out rapid identification and accurate judgment on the intrinsic echo signal and the crack defect signal of the intrados root of the stage 1 moving blade in an analysis module according to the shape profile of the stage 1 moving blade (see the attached figure 6). In the figure, 5 is an imaging diagram of an intrados root platform, 501 is a profile diagram of a moving blade after the detection and extraction of the intrados root, 502 is a phased array ultrasonic detection S-scan view of the intrados root, 503 is an echo signal of an inherent structure of the intrados root, and 504 is a crack defect signal of the intrados root.
In this embodiment, the reverse mapping technique in step 1 is a laser scanning technique.
In this embodiment, the tool in step 2 is an ultrasonic detection tool for the intrados blade root of the moving blade, the tool has the functions of full-automatic scanning and real-time extraction of stroke position information, and the phased array ultrasonic probe is a linear array longitudinal wave straight probe.
In this embodiment, in the position information in step 2, the stroke information is divided into millimeters, and the angle information is divided into degrees.
In this embodiment, the position information in step 2 is all positioning points of incidence points of sound waves in a wedge of the phased array ultrasonic probe.
In this embodiment, the axial point of the real-time tangent plane in step 3 is the intersection point of the probe at the position of X, Y, Z axes, and the tangent plane is a plane where the perpendicular to the intrados root platform plane and the Y axis intersect.
In this embodiment, the view of the ultrasonic echo signal in step 4 is an S-view, that is, a sector display.
In this embodiment, in step 5, the moving blade root is an intrados root.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable one skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A method for distinguishing the shape of a phased array ultrasonic detection part of a moving blade root in real time is characterized by comprising the following steps:
step 1: obtaining an outline dimension model of the detected compressor moving blade through reverse mapping, and leading the outline dimension model into a drawing module;
step 2: designing a tool, mounting the tool on a moving blade, starting detection, and obtaining real-time position information of a phased array ultrasonic probe moving in the detection process relative to the detected moving blade, wherein the position information comprises the axial position of the probe from an air inlet edge to an air outlet edge of the moving blade, the radial position from a blade root to a blade top, the circumferential position from an inner arc surface to a back arc surface, the rotation angle information of the probe in a Y axis and the rotation angle information of the probe in a Z axis; the axial position is defined as an X axis, the radial position is defined as a Z axis, the circumferential position is defined as a Y axis, the rotation angle information of the probe on the Y axis is defined as dimension a, and the rotation angle information of the probe on the Z axis is defined as dimension b;
and 3, step 3: importing real-time position information of the phased array ultrasonic probe into a drawing module, and performing real-time section cutting on the movable vane size model according to the position information to obtain a real-time movable vane shape contour map of the corresponding position of the movable phased array ultrasonic probe;
and 4, step 4: synchronously guiding an ultrasonic echo signal view in the phased array ultrasonic detector and a moving blade section shape contour map in a drawing module into an analysis module in real time;
and 5, step 5: and rapidly identifying and accurately judging the inherent echo signal and the crack defect signal of the blade root of the moving blade according to the shape contour diagram of the moving blade in an analysis module.
2. The method for distinguishing the shape of the phased array ultrasonic detection component of the moving blade and the blade root according to claim 1, wherein the reverse mapping technology in the step 1 comprises a three-coordinate measuring technology, a laser scanning technology, a projection grating measuring technology, a computer tomography technology and a stereoscopic vision measuring technology.
3. The method for distinguishing the shape of the phased array ultrasonic detection component of the moving blade and the blade root according to claim 1, wherein the tool in the step 2 comprises a moving blade intrados blade root ultrasonic detection tool and a back-arc blade root ultrasonic detection tool, the tool has the functions of full-automatic scanning and real-time extraction of stroke position information, and the phased array ultrasonic probe is a linear array transverse wave oblique probe or a linear array longitudinal wave straight probe.
4. The method for distinguishing the shape of the ultrasonic detection component of the moving blade and the blade root phased array according to claim 1, wherein in the step 2, the stroke information is divided into a millimeter level or less, and the angle information is divided into a degree level or less.
5. The method according to claim 1, wherein the position information in step 2 is determined by taking the incidence point of the sound wave in the ultrasonic probe wedge of the phased array as a positioning point.
6. The method for distinguishing the shape of the phased array ultrasonic detection component of the moving blade and the blade root according to claim 1, wherein the axial point of the real-time tangent plane in the step 3 is the intersection point of the probe at the axial position of X, Y, Z, and the tangent plane is determined by the probe in the dimension a and the dimension b.
7. The method for distinguishing the shape of the phased array ultrasonic detection component of the moving blade and the blade root according to claim 1, wherein the ultrasonic echo signal view in the step 4 comprises a B \ C \ D \ S view, which is mainly an S view, namely a sector display image.
8. The method according to claim 1, wherein the moving blade root in step 5 comprises an intrados root and a dorsal root.
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| CN115494157A (en) * | 2022-11-03 | 2022-12-20 | 广州多浦乐电子科技股份有限公司 | Dynamic loading method and continuous loading method for ultrasonic nondestructive testing workpiece contour |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080250860A1 (en) * | 2004-06-01 | 2008-10-16 | Clossen-Von Lanken Schulz Michael | Method and Device for Determining Defects in a Turbine Blade |
| CN101881602A (en) * | 2010-07-06 | 2010-11-10 | 西安交通大学 | Assembly accuracy detection method of large complicated blade parts |
| CN102288681A (en) * | 2011-05-11 | 2011-12-21 | 南昌航空大学 | Phased array ultrasonic beam covering method for TKY tubular joint welding seam |
| JP2012147858A (en) * | 2011-01-17 | 2012-08-09 | Tokyo Univ Of Agriculture & Technology | Image processor, image processing method, and image processing program |
| CN103018334A (en) * | 2013-01-09 | 2013-04-03 | 河南省电力公司电力科学研究院 | Ultrasonic imaging detecting method of mushroom type root part of blades of steam turbine and phased array energy transduction device |
| JP2014041068A (en) * | 2012-08-23 | 2014-03-06 | Hitachi Ltd | Ultrasonic inspection device and method |
| CN106841398A (en) * | 2017-02-15 | 2017-06-13 | 吉林大学 | The positioning supersonic detection device and method of curved surface weldment |
| CN110363767A (en) * | 2019-08-09 | 2019-10-22 | 中国特种设备检测研究院 | A kind of gridding ultrasound tomography detection method of shaft-like workpiece defect |
| JP2019219267A (en) * | 2018-06-20 | 2019-12-26 | 株式会社日立製作所 | In-line internal defect inspection method and system |
| CN110974294A (en) * | 2019-12-19 | 2020-04-10 | 上海尽星生物科技有限责任公司 | Ultrasonic scanning method and device |
| CN111912909A (en) * | 2020-07-30 | 2020-11-10 | 南通大学 | Rail bottom defect analysis method for steel rail |
-
2020
- 2020-11-20 CN CN202011312188.5A patent/CN112485334B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080250860A1 (en) * | 2004-06-01 | 2008-10-16 | Clossen-Von Lanken Schulz Michael | Method and Device for Determining Defects in a Turbine Blade |
| CN101881602A (en) * | 2010-07-06 | 2010-11-10 | 西安交通大学 | Assembly accuracy detection method of large complicated blade parts |
| JP2012147858A (en) * | 2011-01-17 | 2012-08-09 | Tokyo Univ Of Agriculture & Technology | Image processor, image processing method, and image processing program |
| CN102288681A (en) * | 2011-05-11 | 2011-12-21 | 南昌航空大学 | Phased array ultrasonic beam covering method for TKY tubular joint welding seam |
| JP2014041068A (en) * | 2012-08-23 | 2014-03-06 | Hitachi Ltd | Ultrasonic inspection device and method |
| CN103018334A (en) * | 2013-01-09 | 2013-04-03 | 河南省电力公司电力科学研究院 | Ultrasonic imaging detecting method of mushroom type root part of blades of steam turbine and phased array energy transduction device |
| CN106841398A (en) * | 2017-02-15 | 2017-06-13 | 吉林大学 | The positioning supersonic detection device and method of curved surface weldment |
| JP2019219267A (en) * | 2018-06-20 | 2019-12-26 | 株式会社日立製作所 | In-line internal defect inspection method and system |
| CN110363767A (en) * | 2019-08-09 | 2019-10-22 | 中国特种设备检测研究院 | A kind of gridding ultrasound tomography detection method of shaft-like workpiece defect |
| CN110974294A (en) * | 2019-12-19 | 2020-04-10 | 上海尽星生物科技有限责任公司 | Ultrasonic scanning method and device |
| CN111912909A (en) * | 2020-07-30 | 2020-11-10 | 南通大学 | Rail bottom defect analysis method for steel rail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494157A (en) * | 2022-11-03 | 2022-12-20 | 广州多浦乐电子科技股份有限公司 | Dynamic loading method and continuous loading method for ultrasonic nondestructive testing workpiece contour |
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