CN114839066B - Compression resistance monitoring method and system for straightened steel pipe - Google Patents
Compression resistance monitoring method and system for straightened steel pipe Download PDFInfo
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Abstract
The invention provides a method and a system for monitoring compression resistance of a straightened steel pipe, and relates to the technical field of material quality inspection of the steel pipe. The technical problems that in the prior art, the compression resistance of the steel pipe cannot be synchronously and accurately monitored, and potential safety hazards are easily caused due to the use of unqualified steel pipes are solved, and the aim of accurately monitoring the compression resistance change information of the straightening steel pipe is fulfilled.
Description
Technical Field
The invention relates to the technical field related to material quality inspection of steel pipes, in particular to a method and a system for monitoring compression resistance of a straightened steel pipe.
Background
For a plurality of fields such as industry, agriculture, etc., the steel pipe is extremely wide as a basic equipment application range, however, the steel pipe can be through weakening of its corresponding bearing capacity of difference degree after the alignment processing to influence the use of steel pipe, simultaneously, if can not carry out accurate monitoring to the bearing capacity of alignment steel pipe, easily cause unqualified steel pipe's used repeatedly.
At present, with the popularization of low carbon emission reduction, the application range of straightening treatment of bent steel pipes is very wide, however, the existing related technology cannot synchronously and accurately monitor the pressure resistance of the steel pipes, and potential safety hazards are easily caused by the use of unqualified steel pipes.
Disclosure of Invention
The application provides a compression resistance monitoring method of a straightened steel pipe, which is used for solving the technical problems that the existing related technology in the prior art can not synchronously and accurately monitor the compression resistance of the steel pipe and easily causes potential safety hazards due to the use of unqualified steel pipes.
In view of the above problems, the present application provides a method and a system for monitoring compression resistance of a straightened steel pipe.
In a first aspect, the present application provides a method for monitoring compression resistance of a straightened steel pipe, the method including: acquiring an image of the steel pipe before straightening through image acquisition equipment to obtain image information before straightening; carrying out bending feature extraction on the image information before straightening, and marking the extracted bending feature position; carrying out compression resistance test on the steel pipe before straightening by using an Abaqus technology to obtain a compression resistance cloud chart before straightening; acquiring images of the straightened steel pipe through image acquisition equipment to obtain straightened image information, and marking a straightening position based on the bending characteristic position mark; carrying out compression resistance test on the straightened steel pipe by utilizing an Abaqus technology to obtain a compression resistance cloud picture after straightening; determining compression resistance change information according to the post-straightening compression resistance cloud picture and the pre-straightening compression resistance cloud picture based on the straightening position mark, and obtaining the compression resistance change information; and judging whether the compression resistance change information exceeds a preset use requirement, and sending early warning information when the compression resistance change information exceeds the preset use requirement.
In a second aspect, the present application provides a compression-resistant monitoring system for a straightened steel tube, the system including an image acquisition device, the system including: the image acquisition module is used for acquiring images of the steel pipe before straightening through image acquisition equipment to obtain image information before straightening; the characteristic extraction module is used for extracting the bending characteristic of the image information before straightening and marking the extracted bending characteristic; the compression resistance testing module is used for carrying out compression resistance testing on the steel pipe before straightening by utilizing an Abaqus technology to obtain a compression resistance cloud picture before straightening; the position marking module is used for acquiring images of the straightened steel pipe through image acquisition equipment, acquiring straightened image information and carrying out straightening position marking based on the bending characteristic position marking; the compression-resistant debugging test module is used for carrying out compression-resistant test on the straightened steel pipe by utilizing an Abaqus technology to obtain a straightened compression-resistant capability cloud picture; the information determining module is used for determining compression resistance change information according to the aligned compression resistance cloud picture and the pre-aligned compression resistance cloud picture based on the alignment position mark to obtain the compression resistance change information; and the preset requirement judging module is used for judging whether the compression resistance change information exceeds a preset use requirement or not, and sending early warning information when the compression resistance change information exceeds the preset use requirement.
One or more technical solutions provided in the present application have at least the following technical effects or advantages:
according to the compression monitoring method for the steel pipe after straightening, image acquisition is carried out on the steel pipe before straightening through image acquisition equipment, image information before straightening is obtained, bending characteristic extraction is further carried out on the steel pipe, extracted bending characteristic positions are marked, compression testing is carried out on the steel pipe before straightening through an Abaqus technology, a compression capacity cloud picture before straightening is obtained, image acquisition is carried out on the steel pipe after straightening to obtain image information after straightening, the straightening positions are marked based on the bending characteristic position marks, similarly, compression testing is carried out on the steel pipe after straightening through the Abaqus technology, the compression capacity cloud picture after straightening is obtained, compression change information is further obtained, whether the compression change information exceeds preset use requirements is judged, early warning information is sent when the compression change information exceeds the preset use requirements, the technical problem that the compression capacity of the steel pipe cannot be synchronously and accurately monitored due to the fact that potential safety hazards exist in the prior art is solved based on the above operation, and the compression change information of the steel pipe can be accurately monitored.
Drawings
FIG. 1 is a schematic flow chart of a method for monitoring the compression resistance of a straightened steel pipe according to the present application;
FIG. 2 is a schematic diagram illustrating a preset operation requirement judgment process in the straightened steel pipe compression resistance monitoring method provided by the present application;
FIG. 3 is a schematic diagram illustrating a steel pipe stress distribution information acquisition process in the straightening steel pipe compression monitoring method provided by the present application;
fig. 4 provides a schematic structural view of a pressure-resistant monitoring system for a straightened steel pipe.
Description of the reference numerals: the device comprises an image acquisition module a, a feature extraction module b, a compression resistance testing module c, a position marking module d, a compression resistance debugging testing module e, an information determination module f and a preset requirement judgment module g.
Detailed Description
The application provides a compression resistance monitoring method and system of steel pipe after alignment, through the confirmation of compressive capacity cloud picture before alignment and compressive capacity cloud picture after alignment to the steel pipe respectively, acquire corresponding compression resistance change information on this basis, and then judge it, if not conform to the requirement and carry out early warning, be used for solving current correlation technique that exists among the prior art and can not accomplish synchronous accurate monitoring to the compressive capacity of steel pipe, cause the technical problem of the existence of potential safety hazard because of the use of unqualified steel pipe easily.
Example one
As shown in fig. 1, the present application provides a method for monitoring compression resistance of a straightened steel pipe, wherein the method is applied to a compression resistance monitoring system, the system comprises an image acquisition device, and the method comprises the following steps:
step S100: acquiring an image of the steel pipe before straightening through image acquisition equipment to obtain image information before straightening;
specifically, the compression resistance monitoring method of the straightened steel pipe is characterized in that compression resistance change information is determined according to the compression resistance of the straightened steel pipe and the compression resistance of the straightened steel pipe, a compression resistance change threshold value is further preset, the compression resistance change information is judged, warning information is sent when the preset use requirement is exceeded, and potential danger is avoided.
Step S200: carrying out bending feature extraction on the image information before straightening, and marking the extracted bending feature position;
specifically, image acquisition of the steel pipe before straightening is carried out to determine image information before straightening, bending characteristics of the steel pipe are extracted based on the acquired image information before straightening, bending position coordinates and corresponding bending angles of a plurality of bending points of the steel pipe are determined by taking a horizontal reference line of a straightening machine as reference, the bending position coordinates and the corresponding bending angles are further marked sequentially based on a certain serial number, each bending position coordinate corresponds to the corresponding bending coordinate, the bending position coordinates and the bending angles corresponding to the acquired bending mark sequence are integrated and stored, targeted analysis and adjustment of each bending point can be carried out in the later period conveniently, the bending characteristics are extracted and marked based on the image information before straightening of the steel pipe, and basis information is provided for later bending adjustment of the steel pipe.
Step S300: carrying out compression resistance test on the steel pipe before straightening by using an Abaqus technology to obtain a compression resistance cloud picture before straightening;
specifically, based on the image information of the steel pipe before straightening, a compression resistance test is performed on the steel pipe based on relevant parameter information, and further, the Abaqus is used as engineering simulation software with powerful functions, wherein a large number of unit libraries capable of simulating tension in any geometric shape are covered, the performance of various engineering materials can be simulated, the Abaqus performs rapid establishment of a compression resistance test analysis model based on the state, the material and the like of the steel pipe before straightening through an analysis continuity technology, steel pipe bending-bending resilience state simulation is performed based on the state parameter information of the steel pipe before straightening, a compression resistance cloud picture of the steel pipe before straightening is obtained through visual monitoring and analysis of the transmission state, the compression resistance cloud picture performs visual processing on the compression resistance of the steel pipe, performs direct expression on the content, visually highlights a corresponding theme, facilitates observation of the compression resistance of the steel pipe, performs analysis and test on the strength, the hardness, the toughness, the material ductility and the like of the steel pipe based on the compression resistance cloud picture of the steel pipe before straightening, and determines the compression resistance analysis and the compression resistance change of the steel pipe after straightening as comparison parameter information.
Step S400: acquiring an image of the straightened steel pipe through image acquisition equipment to obtain straightened image information, and marking a straightening position based on the bending characteristic position mark;
step S500: carrying out compression resistance test on the straightened steel pipe by utilizing an Abaqus technology to obtain a compression resistance cloud picture after straightening;
specifically, the bending positions are correspondingly adjusted according to different damage degrees based on elasticity and plasticity of the steel pipe, straightening processing is carried out according to a steel pipe straightener, the straightened steel pipe is subjected to image acquisition based on image acquisition equipment, relevant parameter information of the straightened steel pipe is obtained by carrying out image information extraction and analysis, the parameter information of the straightened steel pipe corresponds to the parameter information before straightening, and the bending position coordinates and the bending angle are further analyzed based on position marks of bending characteristics to determine the positions needing straightening processing, and the positions needing adjusting are marked according to different serial numbers to obtain corresponding straightening mark positions.
Further, the straightening image information is obtained by bending and straightening the steel pipe, on the basis, the steel pipe state simulation is carried out on the straightening-straightening springback process of the steel pipe by inputting the straightening image information into the compression analysis model based on parameters such as the state and the material of the straightened steel pipe according to the Abaqus technology, the straightening-straightening resilience process of the steel pipe is simulated by taking the steel pipe before straightening as an initial state, the straightening-straightening process of the steel pipe is visually monitored and analyzed, the post-straightening compression capacity cloud picture is obtained, a secondary compression test of the steel pipe is carried out based on the post-straightening compression capacity cloud picture, and the compression test result of the straightened steel pipe is determined and comprises the strength, the hardness, the toughness, the material ductility and the like of the steel pipe, so that the compression capacity of the steel pipe is visually processed, the content is directly expressed, and main information is visually highlighted so as to observe the post-straightening compression capacity of the steel pipe. The method has the advantages that the image acquisition and the feature extraction are carried out on the straightened steel pipe, the straightened steel pipe is further subjected to compression resistance test, the corresponding compression resistance cloud picture is obtained and can be stored as another reference parameter information, and the analysis and the determination of the compression resistance change information after the straightening are facilitated.
Step S600: determining compression resistance change information according to the post-straightening compression resistance cloud picture and the pre-straightening compression resistance cloud picture based on the straightening position mark, and obtaining the compression resistance change information;
step S700: and judging whether the compression resistance change information exceeds a preset use requirement, and sending early warning information when the compression resistance change information exceeds the preset use requirement.
Specifically, the method comprises the steps of collecting image information of a straightened steel pipe, marking a straightening position according to an obtained bending characteristic position mark, synchronously mapping a pre-straightening compressive capacity cloud picture and a post-straightening compressive capacity cloud picture based on the obtained straightening mark position, further carrying out compressive change analysis, obtaining compressive change information, wherein the compressive change information comprises compressive strength, and after the bending position of the steel pipe is adjusted to different degrees, the corresponding compressive capacity and the like of the steel pipe can be influenced by different degrees and further influence the use of the steel pipe, and the compressive change information of the steel pipe is determined, so that the application condition of the steel pipe is predicted on the basis.
Further, the use requirements are preset, the preset use requirements refer to the limit requirements which can be applied based on the straightening adjustment of the steel pipe, whether the compression-resistant change information exceeds the preset use requirements is judged, if the preset use requirements are met, operation and application are continued, if the compression-resistant change information exceeds the preset use requirements, early warning information is sent to carry out early warning reminding, potential danger can exist due to the fact that the compression-resistant capacity of the forced use steel pipe is not enough and warning is carried out by sending the early warning information to stop follow-up operation.
Further, the step S200 of extracting the bending feature of the image information before the straightening and marking the extracted bending feature position further includes:
step S210: obtaining an output horizontal basic line of the straightener;
step S220: performing curvature characteristic extraction on the image information before straightening based on the horizontal reference line output by the straightening machine, wherein the curvature characteristic comprises a bending position coordinate and a bending angle;
step S230: and identifying bent frame points according to the bending characteristics, marking based on the bending position coordinates of the bent frame points, and associating the bending angles with the marks.
Specifically, based on the acquired image information before steel pipe straightening, the bending characteristics of the steel pipe are extracted, the straightener output horizontal base line, which is a comparison standard when the straightener performs bending straightening of the steel pipe, is acquired, steel pipe adjustment is performed with the horizontal base line as the straightening standard, based on the straightener output horizontal base line, the acquired image information before steel pipe straightening and the reverse bending characteristic degree are extracted, the bending position coordinates and the bending angle of the steel pipe are determined, the bending position coordinates and the bending angle are determined with the straightener output horizontal base line as a reference position, and further, the part of the steel pipe to be straightened is determined.
Further, based on the acquired bending position coordinates and the acquired bending angle, bending frame point identification is carried out on the corresponding bending part, the bending frame point refers to a contour point of the part to be straightened of the steel pipe, based on the acquired bending frame point, the bending position coordinates of the steel pipe are marked, a corresponding marking serial number is acquired, distinguishing identification is conveniently carried out during subsequent straightening of the steel pipe, the bending angle is further associated with the marking, the bending angle corresponds to the marking in a one-to-one mode, a foundation is laid for subsequent bending straightening of the steel pipe by extracting and marking the bending characteristics of the steel pipe, and targeted adjustment can be carried out based on the acquired marking information.
Further, as shown in fig. 2, determining whether the compression-resistant variation information exceeds a preset usage requirement, step S700 of the present application further includes:
step S710: acquiring basic information of the steel pipe to obtain basic information of the steel pipe, wherein the basic information of the steel pipe comprises steel pipe material information, steel pipe thickness information and steel pipe application environment information;
step S720: determining the steel pipe connection position and the steel pipe stress requirement according to the steel pipe application environment information;
step S730: determining steel pipe stress information according to the steel pipe material information and the steel pipe thickness information;
step S740: analyzing the stress of the steel pipe according to the connection position of the steel pipe and the stress requirement of the steel pipe to obtain stress distribution information of the steel pipe;
step S750: and determining a stress adjusting range by performing stress analysis on the steel pipe stress information and the steel pipe stress distribution information, and obtaining the preset use requirement according to the stress adjusting range.
Specifically, based on image acquisition equipment, basic information of a steel pipe is acquired, steel pipe material information, steel pipe thickness information and steel pipe application environment information of the steel pipe are further determined, the information limits the use range of the steel pipe to different degrees, based on the steel pipe application environment information, the use range of the steel pipe is determined, and then the connection position of the steel pipe is determined.
Further, stress analysis is carried out on the steel pipe based on the connection position of the steel pipe and the stress requirement of the steel pipe, stress conditions of the steel pipes at different positions are collected, the position points, needing to bear the pressure, of the steel pipe are determined, the obtained position points are integrated to obtain the stress distribution condition of the steel pipe, stress analysis is carried out on the steel pipe based on the stress information of the steel pipe and the stress distribution information of the steel pipe to determine the adjustable and controllable area of the stress points, the stress adjustment range of the steel pipe is further determined, the preset using requirement of the steel pipe is obtained on the basis, the preset using requirement of the steel pipe refers to the limit requirement that the steel pipe can be normally applied when in use, the steel pipe is subjected to stress analysis, the corresponding preset using requirement is obtained, and the compression change information is judged on the basis.
Further, as shown in fig. 3, according to the steel pipe connection position, the steel pipe stress requirement is subjected to steel pipe stress analysis, so as to obtain steel pipe stress distribution information, step S740 of the present application further includes:
step S741: determining application connection information based on the steel pipe connection position, wherein the application connection information comprises a connecting piece and a connecting structure;
step S742: performing stress analysis on the connecting piece according to the material information and the attribute information of the connecting piece and the position of the connecting piece in the connecting structure to obtain stress information of the connecting piece;
step S743: based on the stress information of the connecting piece, analyzing the stress point of the steel pipe joint according to the connecting structure, and determining the stress point information of the steel pipe structure;
step S744: obtaining application stress information, wherein the application stress information comprises a force application range and force application distribution;
step S745: and evaluating the stress of each point of the steel pipe according to the force application range and the force application distribution, and determining the stress distribution information of the steel pipe, wherein the stress distribution information of the steel pipe comprises the stress information of the stress point of the steel pipe structure.
Specifically, based on the acquired steel pipe application environment information, the use range of the steel pipe is analyzed, the connection position of the steel pipe is determined, according to the connection position of the steel pipe, the connection piece and the connection structure of the steel pipe are analyzed, and the application connection information of the steel pipe is acquired, for example, when the steel pipe is used for an engineering structure, the steel pipe is used as a sub-component of an integral frame and is connected through different connection modes to form an integral structure, the steel pipe is used as a conveying pipeline and is connected with a corresponding device, the steel pipe is used as a transportation component, the material information and the attribute information of the connection piece are analyzed, the stress of the connection piece is analyzed based on the corresponding position of the connection piece in the brief introduction structure, the stress size and the stress direction of the connection piece are determined, the stress information of the connection piece is acquired, on the basis, the stress analysis is performed on the connection point of the steel pipe based on the connection structure, the stress direction, the stress size and the stress range of the steel pipe structure are determined, and the stress point information of the steel pipe is acquired.
Further, the stress source of the steel pipe is subjected to information analysis, a corresponding force application range and a corresponding force application distribution condition are obtained, so that application stress information is determined, wherein the application stress information refers to pressure information borne in the steel pipe application process, the stress of the steel pipe is analyzed according to the force application range and the force application distribution, the stress of each position point of the steel pipe is determined, the stress is evaluated to determine the stress distribution information of the integral structure of the steel pipe and the steel pipe, including the stress, the stress direction, the stress range and the like, the stress distribution information of the steel pipe is obtained by performing the stress analysis of the steel pipe, and information support is provided for the subsequent determination of the preset use requirement of the steel pipe.
Further, step S743 of the present application further includes:
step S7431: determining structural stress information according to the connection structure;
step S7432: determining the stress relation of the steel pipes at each position according to the steel pipe connecting position and the structural stress information;
step S7433: when the stress relation comprises the stress information of the connecting piece, generating stress point information of the steel pipe structure according to the stress information of the connecting piece and the stress relation;
step S7434: and when the stress relation comprises steel pipe basic information, analyzing stress influence according to the steel pipe basic information, and generating the stress point information of the steel pipe structure according to the stress influence information of basic factors and the stress relation.
Specifically, information collection and analysis are carried out on a connecting structure of a steel pipe, stress information of the connecting structure is obtained, stress conditions of the steel pipe are analyzed based on the specific connecting structure, on the basis, stress conditions of the steel pipe at each position are analyzed according to the connecting position of the steel pipe, stress relations of the steel pipe at each position are determined, for the steel pipes at different positions, stress requirements of the steel pipes at different structures are different, for example, the steel pipe at the upper part of a support frame has smaller pressure due to the lower supporting force, the stress requirements of the steel pipe are smaller, the steel pipe directly stressed has stronger corresponding stress degree along with the increasing of the length, the stress requirements of the steel pipe are larger, if the stress relations of the steel pipe are related to the connecting piece, stress point information of the steel pipe is determined according to the stress relations and the stress information of the connecting piece, the stress point information comprises stress direction, stress size and stress division degree, when the stress relations are related to the steel pipe basic information, stress analysis is carried out on the steel pipe based on the steel pipe basic information, the steel pipe basic information comprises the material of the steel pipe, the steel pipe length, the steel pipe inner diameter and the stress information, the steel pipe is further determined, and the stress information of the stress points is determined, and the stress information of the steel pipe is further determined based on the stress structure requirements of the stress structure.
Further, step S750 of the present application further includes:
step S751: based on the steel pipe basic information, obtaining historical pressure-resistant change information, and constructing a historical pressure-resistant change data set according to the mapping relation between the steel pipe basic information and the historical pressure-resistant change information;
step S752: according to the historical compression-resistant change data set, respectively carrying out compression-resistant change analysis on the historical compression-resistant change information corresponding to the basic information of each steel pipe, and constructing a compression-resistant analysis model;
step S753: obtaining steel pipe basic information of the steel pipe before straightening, performing compression-resistant analysis model matching according to the steel pipe basic information of the steel pipe before straightening, inputting the bending characteristic position mark into the matched compression-resistant analysis model, and obtaining compression-resistant change information;
step S754: and when the compression resistance change information exceeds the compression resistance change alignment threshold value, sending reminding information.
Specifically, historical compression-resistant change information of the steel pipe is determined according to the acquired steel pipe basic information, including steel pipe size, steel pipe material and the like, wherein the historical compression-resistant change information refers to change information of compression resistance degree of the steel pipe in the process of using the steel pipe, and includes the bending degree of the steel pipe and the corresponding stress change situation after straightening, a historical compression-resistant change data set is constructed based on the mapping relation between the steel pipe basic information and the historical compression-resistant change information, the historical compression-resistant change data set refers to data information including the change situation of the compression resistance degree corresponding to different stages of the steel pipe, on the basis, the historical compression-resistant change information corresponding to the basic information of each steel pipe is analyzed, a compression-resistant analysis model is further established, and the compression-resistant change model can be used for rapid monitoring and analysis of the compression resistance situation.
Further, according to basic information of the steel pipe before straightening, including bending of the steel pipe as a main part, bending angles and the like, automatic matching is carried out in the compression-resistant analysis model, bending characteristic position marks are further input into the matched compression-resistant analysis model, monitoring of compression-resistant change information is carried out, corresponding adjustment processing is carried out by rapidly monitoring the compression-resistant change information, when the obtained compression-resistant change information exceeds a compression-resistant change adjustment threshold value, reminding information is sent, processing is stopped, the compression-resistant change adjustment threshold value refers to a range capable of being adjusted, cost and difficulty of adjustment exceeding the range are too high, damage to the steel pipe is easily caused, and through construction of the compression-resistant analysis model, compression-resistant change of the steel pipe can be rapidly monitored, and corresponding adjustment processing is carried out.
Further, step S600 of the present application further includes:
step S610: carrying out pressure-resistant position marking on the steel pipe according to the aligned pressure-resistant capacity cloud picture;
step S620: setting the use parameters of the steel pipe according to the pressure resistant position mark;
step S630: and matching the application environment according to the steel pipe use parameters, producing an application parameter analysis result, and identifying the steel pipe based on the application parameter analysis result production label.
Specifically, the method comprises the steps of testing and obtaining a compression resistance cloud picture of a straightened steel pipe based on an Abaqus technology, so that the compression resistance of the steel pipe is clearly expressed, further marking the compression resistance position of the steel pipe according to the compression resistance cloud picture, sequentially marking the compression resistance position based on a certain serial number, wherein the compression resistance position refers to the position of the steel pipe, which needs to bear external force, setting the use parameters of the steel pipe according to the obtained compression resistance position mark, determining the conveying medium, the outer diameter, the inner diameter, the wall thickness, the steel pipe material and the like of the steel pipe, matching the application environment of the steel pipe based on relevant parameters, further obtaining an application parameter analysis result, limiting the application environment of the steel pipe based on the application parameter analysis result, obtaining a corresponding production label to correspond to the application range of the steel pipe, marking the steel pipe according to the application parameter analysis result, and preventing damage of different degrees caused by overuse of the steel pipe in the application process.
Further, step S630 of the present application further includes:
and identifying the application parameter analysis result label through the image acquisition equipment, and sending early warning information when the application parameter analysis result does not meet the application environment use requirement.
Specifically, the environmental suitability of the steel pipe is determined by performing environmental matching analysis on set steel pipe use parameters, a corresponding label is generated by taking the environmental suitability as a standard to identify the steel pipe, the obtained application parameter analysis result label is further identified based on image acquisition equipment, and then the application parameter analysis result label is matched with the application environment use requirement of the steel pipe, whether the application environment use requirement is met is judged, if the application environment use requirement is met, normal application is performed, if the application parameter analysis result does not meet the application environment use requirement, the steel pipe can be damaged if forced use is performed, and meanwhile, potential danger may exist, early warning information is sent to warn the situation so as to stop subsequent operation, and by performing application environment matching on the steel pipe, early warning is performed on mismatching information, so that reduction of the service life of the steel pipe due to factors such as insufficient compressive strength or suitability of steel pipe materials is avoided, and further normal use is influenced.
Example two
Based on the same inventive concept as the method for monitoring the compression resistance of the straightened steel pipe in the previous embodiment, as shown in fig. 4, the application provides a system for monitoring the compression resistance of the straightened steel pipe, wherein the system comprises:
the device comprises an image acquisition module a, a pre-straightening module and a straightening module, wherein the image acquisition module a is used for acquiring images of the steel pipe before straightening through image acquisition equipment to obtain image information before straightening;
the characteristic extraction module b is used for extracting the bending characteristic of the image information before straightening and marking the extracted bending characteristic position;
the compression resistance testing module c is used for performing compression resistance testing on the steel pipe before straightening by using an Abaqus technology to obtain a compression resistance cloud picture before straightening;
the position marking module d is used for acquiring images of the straightened steel pipe through image acquisition equipment, acquiring straightened image information and carrying out straightening position marking based on the bending characteristic position marking;
the compression resistance debugging test module e is used for carrying out compression resistance test on the straightened steel pipe by utilizing an Abaqus technology to obtain a straightened compression resistance cloud picture;
an information determining module f, configured to determine, based on the alignment position mark, compression-resistant change information according to the post-alignment compression-resistant capability cloud chart and the pre-alignment compression-resistant capability cloud chart, and obtain the compression-resistant change information;
and the preset requirement judging module g is used for judging whether the compression resistance change information exceeds a preset use requirement or not, and sending early warning information when the compression resistance change information exceeds the preset use requirement.
Further, the system further comprises:
a basic line obtaining module for obtaining a horizontal basic line output by a straightener;
the bending feature extraction module is used for extracting bending features of the image information before straightening based on the horizontal reference line output by the straightener, and the bending features comprise a bending position coordinate and a bending angle;
the bending position marking module is used for identifying bending frame points according to the bending characteristics, marking the bending position coordinates based on the bending frame points, and associating the bending angle with the marks.
Further, the system further comprises:
the information acquisition module is used for acquiring basic information of the steel pipe to obtain steel pipe basic information, wherein the steel pipe basic information comprises steel pipe material information, steel pipe thickness information and steel pipe application environment information;
the requirement determining module is used for determining the steel pipe connecting position and the steel pipe stress requirement according to the steel pipe application environment information;
the stress information determining module is used for determining steel pipe stress information according to the steel pipe material information and the steel pipe thickness information;
the distribution information acquisition module is used for carrying out steel pipe stress analysis according to the steel pipe connecting position and the steel pipe stress requirement to obtain steel pipe stress distribution information;
and the preset use requirement obtaining module is used for determining a stress adjusting range through stress analysis on the steel pipe stress information and the steel pipe stress distribution information, and obtaining the preset use requirement according to the stress adjusting range.
Further, the system further comprises:
the connection information determining module is used for determining application connection information based on the steel pipe connection position, and the application connection information comprises a connecting piece and a connecting structure;
the connecting piece stress information acquisition module is used for carrying out stress analysis on the connecting piece according to the material information and the attribute information of the connecting piece and the position of the connecting piece in the connecting structure to acquire stress information of the connecting piece;
the stress point information determining module is used for analyzing the stress point of the steel pipe joint according to the connecting structure based on the stress information of the connecting piece to determine the stress point information of the steel pipe structure;
the application stress information acquisition module is used for acquiring application stress information, and the application stress information comprises a force application range and force application distribution;
and the stress evaluation module is used for evaluating the stress of each point of the steel pipe according to the force application range and the force application distribution and determining the stress distribution information of the steel pipe, and the stress distribution information of the steel pipe comprises the stress information of the stress point of the steel pipe structure.
Further, the system further comprises:
the structure stress information determining module is used for determining structure stress information according to the connecting structure;
the stress relation determining module is used for determining the stress relation of the steel pipes at each position according to the steel pipe connecting position and the structural stress information;
the information generation module is used for generating the stress point information of the steel pipe structure according to the stress information of the connecting piece and the stress relation when the stress relation comprises the stress information of the connecting piece;
and the stress point information generating module is used for analyzing stress influence according to the steel pipe basic information when the stress relationship comprises the steel pipe basic information, and generating the stress point information of the steel pipe structure according to the stress influence information of basic factors and the stress relationship.
Further, the system further comprises:
the data set construction module is used for obtaining historical pressure-resistant change information based on the steel pipe basic information and constructing a historical pressure-resistant change data set according to the mapping relation between the steel pipe basic information and the historical pressure-resistant change information;
the model construction module is used for respectively carrying out compression change analysis on the historical compression change information corresponding to the basic information of each steel pipe according to the historical compression change data set to construct a compression analysis model;
the model simulation module is used for obtaining steel pipe basic information of the steel pipe before straightening, performing compression-resistant analysis model matching according to the steel pipe basic information of the steel pipe before straightening, inputting the bending characteristic position mark into the matched compression-resistant analysis model, and obtaining the compression-resistant change information;
and the threshold value judging module is used for sending reminding information when the compression resistance change information exceeds the compression resistance change straightening threshold value.
Further, the system further comprises:
the compression-resistant position marking module is used for marking the compression-resistant position of the steel pipe according to the straightened compression-resistant capability cloud picture;
the parameter setting module is used for setting the use parameters of the steel pipe according to the pressure-resistant position mark;
and the result identification module is used for matching the application environment according to the steel pipe use parameters, producing application parameter analysis results and identifying the steel pipe based on the application parameter analysis results and the production label.
Further, the system further comprises:
and the early warning information sending module is used for identifying the application parameter analysis result label through the image acquisition equipment and sending early warning information when the application parameter analysis result does not meet the application environment use requirement.
In the present specification, through the foregoing detailed description of the method for monitoring the pressure resistance of a straightened steel pipe, it will be clear to those skilled in the art that the method and the system for monitoring the pressure resistance of a straightened steel pipe in the present embodiment are disclosed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A method for monitoring the compression resistance of a straightened steel pipe is applied to a compression resistance monitoring system, the system comprises an image acquisition device, and the method comprises the following steps:
acquiring an image of the steel pipe before straightening through image acquisition equipment to obtain image information before straightening;
carrying out bending feature extraction on the image information before straightening, and marking the extracted bending feature position;
carrying out compression resistance test on the steel pipe before straightening by using an Abaqus technology to obtain a compression resistance cloud chart before straightening;
acquiring an image of the straightened steel pipe through image acquisition equipment to obtain straightened image information, and marking a straightening position based on the bending characteristic position mark;
carrying out compression resistance test on the straightened steel pipe by utilizing an Abaqus technology to obtain a compression resistance cloud picture after straightening;
determining compression resistance change information according to the post-straightening compression resistance cloud picture and the pre-straightening compression resistance cloud picture based on the straightening position mark, and obtaining the compression resistance change information;
judging whether the compression-resistant change information exceeds a preset use requirement or not, and sending early warning information when the compression-resistant change information exceeds the preset use requirement;
before judging whether the compression resistance change information exceeds the preset use requirement, the method comprises the following steps:
acquiring basic information of the steel pipe to obtain basic information of the steel pipe, wherein the basic information of the steel pipe comprises steel pipe material information, steel pipe thickness information and steel pipe application environment information;
determining the steel pipe connection position and the steel pipe stress requirement according to the steel pipe application environment information;
determining steel pipe stress information according to the steel pipe material information and the steel pipe thickness information;
analyzing the stress of the steel pipe according to the connection position of the steel pipe and the stress requirement of the steel pipe to obtain stress distribution information of the steel pipe;
determining a stress adjusting range by carrying out stress analysis on the steel pipe stress information and the steel pipe stress distribution information, and obtaining the preset use requirement according to the stress adjusting range;
based on the steel pipe basic information, obtaining historical pressure-resistant change information, and constructing a historical pressure-resistant change data set according to the mapping relation between the steel pipe basic information and the historical pressure-resistant change information;
according to the historical compression-resistant change data set, respectively carrying out compression-resistant change analysis on the historical compression-resistant change information corresponding to the basic information of each steel pipe, and constructing a compression-resistant analysis model;
obtaining steel pipe basic information of the steel pipe before straightening, performing compression-resistant analysis model matching according to the steel pipe basic information of the steel pipe before straightening, inputting the bending characteristic position mark into the matched compression-resistant analysis model, and obtaining compression-resistant change information;
and when the compression resistance change information exceeds the compression resistance change alignment threshold value, sending reminding information.
2. The method of claim 1, wherein performing curvature feature extraction on the pre-straightened image information and marking the extracted curvature feature locations comprises:
obtaining an output horizontal basic line of the straightener;
performing curvature characteristic extraction on the image information before straightening based on the horizontal reference line output by the straightening machine, wherein the curvature characteristic comprises a bending position coordinate and a bending angle;
and identifying bent frame points according to the bending characteristics, marking based on the bent position coordinates of the bent frame points, and associating the bent angle with the mark.
3. The method of claim 1, wherein the steel pipe stress analysis is performed according to the steel pipe connection position and the steel pipe stress requirement to obtain steel pipe stress distribution information, and the method comprises the following steps:
determining application connection information based on the steel pipe connection position, wherein the application connection information comprises a connecting piece and a connecting structure;
performing stress analysis on the connecting piece according to the material information and the attribute information of the connecting piece and the position of the connecting piece in the connecting structure to obtain stress information of the connecting piece;
based on the stress information of the connecting piece, analyzing the stress point of the steel pipe joint according to the connecting structure, and determining the stress point information of the steel pipe structure;
obtaining application stress information, wherein the application stress information comprises a force application range and force application distribution;
and evaluating the stress of each point of the steel pipe according to the force application range and the force application distribution, and determining the stress distribution information of the steel pipe, wherein the stress distribution information of the steel pipe comprises the stress information of the stress point of the steel pipe structure.
4. The method of claim 3, wherein the method comprises:
determining structural stress information according to the connection structure;
carrying out stress relation of the steel pipes at all positions according to the steel pipe connecting positions and the structural stress information;
when the stress relation comprises the stress information of the connecting piece, generating stress point information of the steel pipe structure according to the stress information of the connecting piece and the stress relation;
and when the stress relation comprises steel pipe basic information, analyzing stress influence according to the steel pipe basic information, and generating the stress point information of the steel pipe structure according to the stress influence information of basic factors and the stress relation.
5. The method of claim 1, wherein the method further comprises:
carrying out pressure resistance position marking on the steel pipe according to the straightened pressure resistance cloud picture;
setting the use parameters of the steel pipe according to the pressure-resistant position mark;
and matching the application environment according to the steel pipe use parameters, producing an application parameter analysis result, and identifying the steel pipe based on the application parameter analysis result production label.
6. The method of claim 5, wherein the method further comprises:
and identifying the application parameter analysis result label through the image acquisition equipment, and sending early warning information when the application parameter analysis result does not meet the application environment use requirement.
7. The utility model provides a resistance to compression monitoring system of alignment back steel pipe which characterized in that, the system includes image acquisition equipment, the system includes:
the image acquisition module is used for acquiring images of the steel pipe before straightening through image acquisition equipment to obtain image information before straightening;
the characteristic extraction module is used for extracting the bending characteristic of the image information before straightening and marking the extracted bending characteristic position;
the compression resistance testing module is used for carrying out compression resistance testing on the steel pipe before straightening by utilizing an Abaqus technology to obtain a compression resistance cloud chart before straightening;
the position marking module is used for acquiring images of the straightened steel pipe through image acquisition equipment, acquiring straightened image information and carrying out straightening position marking based on the bending characteristic position marking;
the compression resistance debugging test module is used for carrying out compression resistance test on the straightened steel pipe by utilizing an Abaqus technology to obtain a straightened compression resistance cloud picture;
the information determining module is used for determining compression resistance change information according to the aligned compression resistance cloud picture and the pre-aligned compression resistance cloud picture based on the alignment position mark to obtain the compression resistance change information;
the preset requirement judging module is used for judging whether the compression resistance change information exceeds a preset use requirement or not and sending early warning information when the compression resistance change information exceeds the preset use requirement;
the information acquisition module is used for acquiring basic information of the steel pipe to obtain steel pipe basic information, wherein the steel pipe basic information comprises steel pipe material information, steel pipe thickness information and steel pipe application environment information;
the requirement determining module is used for determining the steel pipe connecting position and the steel pipe stress requirement according to the steel pipe application environment information;
the stress information determining module is used for determining steel pipe stress information according to the steel pipe material information and the steel pipe thickness information;
the distribution information acquisition module is used for carrying out steel pipe stress analysis according to the steel pipe connecting position and the steel pipe stress requirement to obtain steel pipe stress distribution information;
the preset using requirement obtaining module is used for determining a stress adjusting range through stress analysis of the steel pipe stress information and the steel pipe stress distribution information and obtaining the preset using requirement according to the stress adjusting range;
the data set construction module is used for obtaining historical pressure-resistant change information based on the steel pipe basic information and constructing a historical pressure-resistant change data set according to the mapping relation between the steel pipe basic information and the historical pressure-resistant change information;
the model construction module is used for respectively carrying out compression change analysis on the historical compression change information corresponding to the basic information of each steel pipe according to the historical compression change data set to construct a compression analysis model;
the model simulation module is used for obtaining steel pipe basic information of the steel pipe before straightening, performing compression-resistant analysis model matching according to the steel pipe basic information of the steel pipe before straightening, inputting the bending characteristic position mark into the matched compression-resistant analysis model, and obtaining the compression-resistant change information;
and the threshold value judging module is used for sending reminding information when the compression resistance change information exceeds the compression resistance change alignment threshold value.
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| CN104993418B (en) * | 2015-07-17 | 2018-05-04 | 中国电力科学研究院 | A kind of supporting straightener of connecting tube used for large-section conducting wire protective device |
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