CN112485334B - Real-time distinguishing method for shape of blade root phased array ultrasonic detection part of moving blade - Google Patents
Real-time distinguishing method for shape of blade root phased array ultrasonic detection part of moving blade Download PDFInfo
- Publication number
- CN112485334B CN112485334B CN202011312188.5A CN202011312188A CN112485334B CN 112485334 B CN112485334 B CN 112485334B CN 202011312188 A CN202011312188 A CN 202011312188A CN 112485334 B CN112485334 B CN 112485334B
- Authority
- CN
- China
- Prior art keywords
- blade
- moving blade
- blade root
- phased array
- real
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G01N29/04—Analysing solids
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/06—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring contours or curvatures
-
- 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
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0609—Display arrangements, e.g. colour displays
-
- 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
-
- 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
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/275—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving both the sensor and the material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a method for distinguishing the shape of a blade root phased array ultrasonic detection part 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 in a mapping module; step 2: detecting by adopting a tool to obtain real-time position information of the moving ultrasonic probe relative to the moving blade; step 3: importing the position information into a drawing module, and cutting the moving blade in real time according to the position information; step 4: synchronously and real-timely importing the ultrasonic echo signal view and the section shape outline map into an analysis module; step 5: and identifying and judging the blade root inherent echo signals and the crack signals. The invention can realize the real-time importing of the profile shape of the moving blade according to the position information of the probe in the scanning process when the phased array of the moving blade root of the compressor is used for ultrasonic detection, realize the whole-course, real-time, rapid and accurate distinction of crack signals and inherent interference signals of the moving blade root, and greatly improve the detection efficiency and the intuitiveness and 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 blade root of a moving blade in real time.
Background
The compressor movable blade is a core component for the compressor to do work on 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 where the blade interacts with the air flow, and the blade root is a part where the blade is assembled to a rotor disc groove, and a dovetail-shaped blade root is generally adopted. The compressor movable blade is used as a rotary machine to bear complex alternating stress in the service process, crack defects are liable to occur at the variable cross-section positions of the back cambered surface and the inner cambered surface of the dovetail-shaped blade root, and the safe and stable operation of the unit is seriously affected. Therefore, in order to ensure the safety and reliability of the compressor blade of the gas turbine, it is necessary to perform nondestructive inspection on the blade root of the compressor blade regularly. Particularly, in the maintenance state that the moving blade is not disassembled, the effective detection of the crack defects of the inner cambered surface and the back cambered surface blade root is an important point for the research and development personnel of the operation and maintenance technology of the lower combustion engine.
The phased array ultrasonic detection has the advantages of being not easily limited by the shape and the size of the part, 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 the field non-dismantling in-situ detection of the blade root of the compressor movable blade with a complex structure. However, since the blade root of the movable blade of the compressor is in a dovetail-shaped complex structure, a large amount of structure inherent echoes exist in the phased array detection result, and effective judgment of crack signals is interfered, at present, a shape profile of a detected part is generally preset into the phased array ultrasonic detection scanning result, so that the inherent reflection echoes of the part and the crack defect signals can be visually and intuitively distinguished. However, as the blade body of the moving blade is of a large-curvature variable cross-section torsion structure, the blade root shape is also of a variable cross-section structure, and the profile of the blade body and the blade root shape of the acoustic beam axis section of the phased array ultrasonic probe continuously changes 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 larger. Therefore, for the phased array ultrasonic detection of the blade root of the moving blade, a preset shape profile diagram of the fixed blade root is adopted to assist in distinguishing the inherent echo of the blade root and the crack defect echo, shape dislocation can be generated, signal misjudgment is extremely easy to be caused, and the auxiliary judgment can hardly be carried out on the position with larger shape change.
Therefore, the method for discriminating the shape of the moving blade root phased array ultrasonic detection part in real time is developed, the limitations that crack signals generated by the preset fixed shape outline are misjudged and part of positions cannot be discriminated in an auxiliary mode in the existing moving blade root phased array ultrasonic detection are overcome, and the efficient and reliable gas turbine compressor moving blade root phased array ultrasonic detection during the unit temporary stop is a problem which needs to be solved at present.
Disclosure of Invention
The invention aims at solving the limitations that signal misjudgment is caused by shape dislocation and certain positions cannot be judged in an auxiliary mode when a preset fixed shape outline is adopted to carry out auxiliary judgment on a phased array ultrasonic detection result of a blade root of a movable blade of a gas turbine compressor at present, and provides a method for judging the shape of an ultrasonic detection part of a blade root of a movable blade in real time.
The invention is realized by adopting the following technical scheme:
a method for distinguishing the shape of a blade root phased array ultrasonic detection part of a moving blade in real time comprises the following steps:
step 1: obtaining an outline dimension model of the detected compressor movable blade through reverse mapping, and importing 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 moving phased array ultrasonic probe relative to the detected moving blade in the detection process, wherein the position information comprises axial positions of the probe from an inlet side to an outlet side of the moving blade, radial positions of a blade root to a blade top, circumferential positions of an intrados to a back cambered surface, rotation angle information of the probe on a Y axis and rotation angle information of the probe on 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 a dimension a, and the rotation angle information of the probe on the Z axis is defined as a dimension b;
step 3: importing real-time position information of the phased array ultrasonic probe into a drawing module, and carrying out real-time tangent plane on the moving blade size model according to the position information to obtain a real-time moving blade shape profile diagram of the corresponding position of the moving phased array ultrasonic probe;
step 4: synchronously and real-timely guiding an ultrasonic echo signal view in the phased array ultrasonic detector and a profile view of the section shape of the moving blade in the drawing module into an analysis module;
step 5: and in the analysis module, quick identification and accurate judgment of the inherent echo signals and crack defect signals of the blade root of the moving blade are carried out according to the profile diagram of the shape of the moving blade.
The invention is further improved in that the reverse mapping technology in the step 1 comprises a three-coordinate measurement technology, a laser scanning technology, a projection grating measurement technology, a computer tomography technology and a stereoscopic vision measurement technology.
The invention is further improved in that the tool in the step 2 comprises a tool for ultrasonically detecting the inner cambered surface blade root and a tool for ultrasonically detecting the back cambered surface blade root of the moving blade, wherein the tool has the functions of full-automatic scanning and real-time extraction of travel 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 further improves that the travel information in the position information in the step 2 is graded below millimeter level, and the angle information is graded below degree level.
The invention is further improved in that the position information in the step 2 takes the incidence point of the sound wave in the phased array ultrasonic probe wedge block as a locating point.
The invention is further improved in that the axis point of the real-time section in the step 3 is the intersection point of the probe at the X, Y, Z axis position, and the section is determined by the probe in the dimension a and the dimension b.
The invention further improves that the ultrasonic echo signal view in the step 4 comprises a B\C\D\S view, mainly an S view, namely a sector display view.
The invention is further improved in that the blade root of the moving blade in the step 5 comprises an intrados blade root and a dorsiflexion blade root.
The invention has at least the following beneficial technical effects:
the invention provides a method for distinguishing the shape of a moving blade root phased array ultrasonic detection part in real time, which can realize that when phased array ultrasonic detection is carried out on the moving blade root of a gas turbine compressor during the temporary stop of a unit, the outline shape of a moving blade on the section of an acoustic beam axis is imported in real time according to the position information of a probe in the scanning process of the probe, realize the whole-course, real-time, rapid and accurate distinction between a crack signal and an inherent interference signal in the moving blade root phased array ultrasonic detection result, and greatly improve the detection efficiency and the intuitiveness and reliability of the detection result.
Drawings
Fig. 1 is a flow chart of a method for discriminating the shape of a phased array ultrasonic detecting part of a blade root of a moving blade in real time.
Fig. 2 is a diagram of the shape of a moving blade in the real-time discriminating method of the shape of a moving blade root phased array ultrasonic detecting part according to the present invention.
Fig. 3 is a profile diagram of a real-time section shape of a moving blade in the real-time discriminating method of the shape of a moving blade root phased array ultrasonic detecting part according to the present invention.
Fig. 4 is a graph of a back cambered surface blade root crack defect signal and an inherent structure echo signal in the real-time discriminating method of the shape of the moving blade root phased array ultrasonic detecting component.
Fig. 5 is a view of position information of a tangential plane in the method for discriminating the shape of a phased array ultrasonic detecting part of a blade root of a moving blade in real time.
Fig. 6 is a graph of intrados blade root crack defect signals and inherent structure echo signals in a method for discriminating the shape of a moving blade root phased array ultrasonic detection part in real time.
Reference numerals illustrate:
1. the overall dimension of the moving blade, 2, a tangent plane profile diagram, 3, a tangent plane position diagram, 4, a back cambered surface blade root platform imaging diagram, 5, an inner cambered surface blade root platform imaging diagram.
101. An intrados blade root platform 102, a back cambered surface blade root platform 103, a blade body back cambered surface 104 and a blade body intrados; 201. a back cambered surface blade root detection probe scanning path 202, an inner cambered surface blade root detection probe scanning path 203 and a single-section profile; 301. radial position (Z axis) from blade root to blade top, axial position (X axis) from air inlet side to air outlet side of moving blade, circumferential position (Y axis) from intrados to dorsal arc, 304, rotation angle information (vitamin b) in Z axis, 305, rotation angle information (vitamin a) in Y axis; 401. the method comprises the steps of detecting a profile diagram of the shape of a rotor blade after extraction of a back cambered blade root, performing phased array ultrasonic detection on the back cambered blade root to obtain an S scanning view, 403, echo signals of inherent structures of the back cambered blade root, 404 and crack defect signals of the back cambered blade root; 501. and detecting and extracting the shape profile diagram of the moving blade by the intrados blade root, wherein the profile diagram is 502, the ultrasonic detection S scanning view of the intrados blade root phased array, 503, the echo signal of the intrados blade root inherent structure, 504 and the crack defect signal of the intrados blade root.
Detailed Description
The present invention will be further described in detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
Example 1
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the invention provides a method for distinguishing the shape of a moving blade root phased array ultrasonic detection part 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 turbine compressor of a certain model through reverse mapping, and importing a drawing module (see figure 2); in the figure, 1 is the overall dimension of a moving blade, 101 is an intrados blade root platform, 102 is a dorsiflexion blade root platform, 103 is a blade body dorsiflexion surface, and 104 is a blade body intrados surface;
step 2: designing a back cambered surface blade root ultrasonic detection tool of a moving blade, installing the tool on the surface of an inner cambered surface blade body of the moving blade, connecting a 32 array element linear array phased array ultrasonic probe into a phased array ultrasonic detector host with the specification of 32/128 channels, starting detection, driving the ultrasonic probe to automatically scan along the air inlet side to the air outlet side of the moving blade, and real-time scanning the 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 blade root platform of the moving blade, the circumferential position (defined as a Y axis) of the inner cambered surface to the back cambered surface of the moving blade, the rotation angle information (defined as a dimension a) of the probe on the Y axis and the rotation angle information (defined as a dimension b) of the probe on the Z axis;
step 3: importing real-time position information of the phased array ultrasonic probe into a drawing module, and carrying out real-time tangent plane on a 1 st-stage moving blade size model according to the position information to obtain a real-time 1 st-stage moving blade shape profile diagram (see figure 3) of a position corresponding to the moving phased array ultrasonic probe; in the figure, 2 is a tangent plane profile, 201 is a back cambered surface blade root detection probe scanning path, 202 is an inner cambered surface blade root detection probe scanning path, and 203 is a single tangent plane profile;
step 4: synchronously and real-timely importing an S-scan view of an ultrasonic echo signal in a phased array ultrasonic detector and a section shape profile view of a 1 st-stage moving blade in a drawing module into an analysis module;
step 5: in the analysis module, the quick identification and accurate judgment of the inherent echo signals and crack defect signals of the back cambered surface blade root of the 1 st stage moving blade are carried out according to the shape profile diagram of the 1 st stage moving blade (see figure 4). In the figure, 4 is a back cambered surface blade root platform imaging diagram, 401 is a back cambered surface blade root shape profile diagram after detection and extraction of the back cambered surface blade root, 402 is a back cambered surface blade root phased array ultrasonic detection S scanning view, 403 is a back cambered surface blade root inherent structure echo signal, and 404 is a back cambered surface blade root crack defect signal.
In this embodiment, the reverse mapping technique in step 1 is a laser scanning technique.
In this embodiment, the tool in step 2 is a tool for ultrasonic detection of a back cambered surface blade root of a moving blade, and the tool has the functions of full-automatic scanning and real-time extraction of travel position information, and the phased array ultrasonic probe is a linear array transverse wave oblique probe.
In this embodiment, the travel information in the position information in the step 2 is divided into millimeters, and the angle information is divided into degrees.
In this embodiment, the location information in step 2 uses the incident point of the sound wave in the phased array ultrasonic probe wedge as the locating point.
In this embodiment, the axis point of the real-time tangential plane in the step 3 is the intersection point of the probe at the X, Y, Z axis position, and the tangential plane is determined by the angle determined by the probe in dimension a and dimension b (see fig. 5). In the figure, 3 is a tangential position diagram, 301 is a radial position (Z axis) from a blade root to a blade tip, 302 is an axial position (X axis) from an inlet side to an outlet side of a rotor blade, 303 is a circumferential position (Y axis) from an intrados to a dorsal surface, 304 is rotation angle information (dimension b) on the Z axis, and 305 is rotation angle information (dimension a) on the Y axis;
in this embodiment, the view of the ultrasonic echo signal in the step 4 is an S view, that is, a sector display view.
In this embodiment, the blade root of the moving blade in step 5 is a back cambered surface blade root.
Example 2
Referring to fig. 1, 2, 3 and 6, the invention provides a method for distinguishing the shape of a moving blade root phased array ultrasonic detection part 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 turbine compressor of a certain model through reverse mapping, and importing a drawing module (see figure 2); in the figure, 1 is the overall dimension of a moving blade, 101 is an intrados blade root platform, 102 is a dorsiflexion blade root platform, 103 is a blade body dorsiflexion 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 blade root platform and a back cambered surface blade root platform, connecting a 16-array linear array phased array ultrasonic probe into a phased array ultrasonic detector host with a specification of 16/64 channels, starting detection, automatically scanning the ultrasonic probe along the edge of the intrados blade root platform from an air inlet side to an air outlet side, 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 intrados blade root platform;
step 3: importing real-time position information of the phased array ultrasonic probe into a drawing module, and carrying out real-time tangent plane on a 1 st-stage moving blade size model according to the position information to obtain a real-time 1 st-stage moving blade shape profile diagram (see figure 3) of a position corresponding to the moving phased array ultrasonic probe; in the figure, 2 is a tangent plane profile, 201 is a back cambered surface blade root detection probe scanning path, 202 is an inner cambered surface blade root detection probe scanning path, and 203 is a single tangent plane profile;
step 4: synchronously and real-timely importing an S-scan view of an ultrasonic echo signal in a phased array ultrasonic detector and a section shape profile view of a 1 st-stage moving blade in a drawing module into an analysis module;
step 5: in the analysis module, the inherent echo signals of the inner cambered surface blade root and the crack defect signals of the 1 st stage moving blade are rapidly identified and accurately judged according to the shape profile diagram of the 1 st stage moving blade (see figure 6). In the figure, 5 is an imaging diagram of an intrados blade root platform, 501 is a profile diagram of the shape of a moving blade after intrados blade root detection and extraction, 502 is an intrados blade root phased array ultrasonic detection S scanning view, 503 is an intrados blade root inherent structure echo signal, and 504 is an intrados blade root crack defect signal.
In this embodiment, the reverse mapping technique in step 1 is a laser scanning technique.
In this embodiment, the tool in step 2 is a tool for ultrasonic detection of an intrados blade root of a moving blade, and the tool has the functions of full-automatic scanning and real-time extraction of travel position information, and the phased array ultrasonic probe is a linear array longitudinal wave straight probe.
In this embodiment, the travel information in the position information in the step 2 is divided into millimeters, and the angle information is divided into degrees.
In this embodiment, the location information in step 2 uses the incident point of the sound wave in the phased array ultrasonic probe wedge as the locating point.
In this embodiment, the axis point of the real-time tangential plane in the step 3 is the intersection point of the probe at the X, Y, Z axis position, and the tangential plane is the plane where the perpendicular line of the plane surface of the intrados blade root and the Y axis intersect.
In this embodiment, the view of the ultrasonic echo signal in the step 4 is an S view, that is, a sector display view.
In this embodiment, the blade root of the moving blade in step 5 is an intrados blade root.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same according to the content of the present invention, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (5)
1. A real-time distinguishing method for the shape of a blade root phased array ultrasonic detection part of a moving blade is characterized by comprising the following steps:
step 1: obtaining an outline dimension model of the detected compressor movable blade through reverse mapping, and importing 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 moving phased array ultrasonic probe relative to the detected moving blade in the detection process, wherein the position information comprises axial positions of the probe from an inlet side to an outlet side of the moving blade, radial positions of a blade root to a blade top, circumferential positions of an intrados to a back cambered surface, rotation angle information of the probe on a Y axis and rotation angle information of the probe on 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 a dimension a, and the rotation angle information of the probe on the Z axis is defined as a dimension b; the position information takes the incidence point of the sound wave in the phased array ultrasonic probe wedge block as a locating point;
step 3: importing real-time position information of the phased array ultrasonic probe into a drawing module, and carrying out real-time tangent plane on the moving blade size model according to the position information to obtain a real-time moving blade shape profile diagram of the corresponding position of the moving phased array ultrasonic probe; the axis point of the real-time section is the intersection point of the probe at the X, Y, Z axis position, and the section is determined by the probe in dimension a and dimension b;
step 4: synchronously and real-timely guiding an ultrasonic echo signal view in the phased array ultrasonic detector and a profile view of the section shape of the moving blade in the drawing module into an analysis module; the ultrasonic echo signal view is an S view, namely a sector display view;
step 5: and in the analysis module, quick identification and accurate judgment of the inherent echo signals and crack defect signals of the blade root of the moving blade are carried out according to the profile diagram of the shape of the moving blade.
2. The method for determining the shape of the ultrasonic detection component of the phased array of the blade root of the moving blade according to claim 1, wherein the reverse mapping technology in the step 1 comprises a three-coordinate measurement technology, a laser scanning technology, a projection grating measurement technology, a computer tomography technology and a stereoscopic vision measurement technology.
3. The method for determining the shape of the phased array ultrasonic detection component of the blade root of the moving blade according to claim 1, wherein the tool in the step 2 comprises an ultrasonic detection tool for the blade root of the intrados of the moving blade and an ultrasonic detection tool for the blade root of the back cambered surface, the tool has the functions of full-automatic scanning and real-time extraction of travel 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 discriminating the shape of the ultrasonic detection component of the blade root phased array of the moving blade according to claim 1 is characterized in that in the step 2, the stroke information in the position information is graded below millimeter level, and the angle information is graded below degree level.
5. The method for determining the shape of a phased array ultrasonic detecting component for a blade root of a moving blade according to claim 1, wherein the blade root of the moving blade in the step 5 comprises an intrados blade root and a dorsiflexion blade root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312188.5A CN112485334B (en) | 2020-11-20 | 2020-11-20 | Real-time distinguishing method for shape of blade root phased array ultrasonic detection part of moving blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312188.5A CN112485334B (en) | 2020-11-20 | 2020-11-20 | Real-time distinguishing method for shape of blade root phased array ultrasonic detection part of moving blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112485334A CN112485334A (en) | 2021-03-12 |
| CN112485334B true CN112485334B (en) | 2023-05-16 |
Family
ID=74932597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011312188.5A Active CN112485334B (en) | 2020-11-20 | 2020-11-20 | Real-time distinguishing method for shape of blade root phased array ultrasonic detection part of moving blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112485334B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494157B (en) * | 2022-11-03 | 2023-03-24 | 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1610122A1 (en) * | 2004-06-01 | 2005-12-28 | Siemens Aktiengesellschaft | Method and apparatus for determination of defects in a turbine blade by means of an ultrasonic phased array transducer |
| CN101881602B (en) * | 2010-07-06 | 2012-01-04 | 西安交通大学 | Assembly accuracy detection method of large complicated blade parts |
| JP5847666B2 (en) * | 2012-08-23 | 2016-01-27 | 三菱日立パワーシステムズ株式会社 | Ultrasonic inspection apparatus and method |
| CN103018334B (en) * | 2013-01-09 | 2015-06-10 | 国网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 |
| CN111912909B (en) * | 2020-07-30 | 2022-10-04 | 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112485334A (en) | 2021-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7428842B2 (en) | Phased array ultrasonic testing system and methods of examination and modeling employing the same | |
| US7174788B2 (en) | Methods and apparatus for rotary machinery inspection | |
| US5161413A (en) | Apparatus and method for guided inspection of an object | |
| DK1930722T3 (en) | Fremgangsmåde til ikke-destruktiv afprøvning af et arbejdsemne og ikke-destruktiv afprøvningsindretning | |
| EP2664915B1 (en) | Ultrasonic non-destructive evaluation methods for friction-welded blisks | |
| CN103115960B (en) | Ultrasonic phase array detection method for in-service steam turbine rotor blade | |
| KR20150108872A (en) | System and method for identification, grouping and sizing of embedded flaws in rotor components using ultrasonic inspection | |
| CN112485334B (en) | Real-time distinguishing method for shape of blade root phased array ultrasonic detection part of moving blade | |
| US7606445B2 (en) | Methods and systems for ultrasound inspection | |
| RU2453837C2 (en) | Method and device of ndt for axle hollow variable-section pivots with variable inner and outer radii | |
| Yang et al. | Using phased array ultrasonic technique for the inspection of straddle mount-type low-pressure turbine disc | |
| CN105445374A (en) | Ultrasonic phased array detection method for fir type blade roots of nuclear main turbine | |
| JP3714960B2 (en) | Ultrasonic flaw inspection method and apparatus for discs shrink-fitted on shaft | |
| US8013599B2 (en) | Methods and apparatus for testing a component | |
| CN113311066A (en) | Steam turbine rotor rim reverse T-shaped blade root groove phased array ultrasonic longitudinal wave detection method | |
| CN116858933A (en) | Method for ultrasonically detecting weld quality of stainless steel thin-wall small-diameter pipe by phased array | |
| CN113899785A (en) | Detection method for lithium battery based on ultrasonic and infrared flaw detection | |
| CN112345641A (en) | Turbine blade ultrasonic detection test block and method | |
| CN113155959A (en) | Circular arc fir tree type blade root image identification method based on phased array detection | |
| JP2011047655A (en) | Defect recognition method and defect recognition device using ultrasonic wave | |
| CN103091327A (en) | Hole opening sampling verification method for pipeline spiral weld defects | |
| CN114858920B (en) | Ultrasonic-based generator end part root crack identification method | |
| JP2020063976A (en) | Inspection method of windmill blade | |
| CN213986310U (en) | Turbine blade ultrasonic testing test block | |
| CN216350496U (en) | Ultrasonic surface wave probe device for detecting turbine rotor blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |