CN111737896B - Open caisson key point calculation stress automatic extraction and analysis system and method based on ABAQUS - Google Patents
Open caisson key point calculation stress automatic extraction and analysis system and method based on ABAQUS Download PDFInfo
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Abstract
The invention discloses an open caisson key point calculation stress automatic extraction and analysis system and method based on ABAQUS, which belong to the field of data processing, wherein the system comprises a file import module, a basic data file processing module, a calculation module and a result display module; the basic data file processing module is used for processing the requisite read-in file in the read-in files of the file import module to obtain basic information of the processed model; the calculation module calculates the stress component of the key point, the resultant force difference value of each key point between different construction steps selected by a user according to the basic information of the processed model, performs statistical analysis on the resultant force of the key point, and automatically saves each calculation result file in the designated position of the system; and the result display module is used for outputting and displaying the resultant force at the key point of the open caisson. Therefore, the technical effects of improving the working efficiency of ABAQUS finite element analysis post-processing, saving time and labor and reducing the error rate of the analysis processing process are achieved.
Description
Technical Field
The invention belongs to the technical field of data processing, and particularly relates to an open caisson key point calculation stress automatic extraction and analysis system and method based on ABAQUS.
Background
The ABAQUS software is used as large-scale general finite element analysis software, has rich material model libraries, various unit libraries, strong nonlinear calculation processing capability and friendly human-computer interaction interface, and is increasingly widely applied to open caisson engineering calculation.
Currently, in the existing data processing technology, the computational stress of key points is very much concerned in the open caisson computational analysis process, for example: during the sinking process of the open caisson, soil pressure sensors are generally arranged at the end part and the side surface of the open caisson to monitor the sinking construction process of the open caisson so as to provide engineers with knowledge of whether stress values of certain parts of the open caisson are in a safe range. Therefore, the computational stress corresponding to the installation position of the sensor needs to be concerned during open caisson modeling computation, and the computational simulation effect is judged by comparing the computational stress with the actually measured stress, so that the open caisson construction process can be better controlled. However, at present, the extraction and analysis of the ABAQUS finite element calculation result mostly depend on manual completion, and are time-consuming, labor-consuming and prone to errors.
In summary, in the existing data processing technology, there are technical problems that the ABAQUS finite element analysis processing has low working efficiency, wastes time and labor and is easy to make mistakes.
Disclosure of Invention
The invention aims to solve the technical problems that the ABAQUS finite element analysis processing has low working efficiency, wastes time and labor and is easy to make mistakes in the existing data processing technology.
In order to solve the above technical problem, the present invention provides an automatic open caisson key point stress calculation and extraction analysis system based on ABAQUS, which comprises: the file import module comprises a mandatory read-in file (INP file) for reading in a program, wherein the mandatory read-in file comprises a model basic file for ABAQUS finite element modeling analysis, a finite element calculation stress result file and a coordinate file for a user-defined key point, the model basic file comprises model basic information, the finite element calculation stress result file comprises finite element calculation stress result information, and the coordinate file for the user-defined key point comprises coordinate information of the user-defined key point; the basic data file processing module is used for processing the optional read-in files in the read-in files of the file import module to obtain basic information of the processed model; the calculation module is used for calculating the stress component of the key point, the resultant force at the key point and the resultant force difference value of each key point between different construction steps selected by a user according to the processed basic information of the model, performing statistical analysis on the resultant force at the key point, and automatically storing each calculation result file in the designated position of the system; and the result display module is used for outputting and displaying the resultant force at the key point of the open caisson.
Further, the file import module further includes: importing measured values of stress of key points into a program; importing a profile file of the open caisson cross section shape into a program; importing a column body color setting file for a three-dimensional histogram of a user-defined result display module into a program; and importing a file for customizing the resultant force direction of each key point of the calculation module into the program.
Further, the processing a mandatory read-in file in the read-in files of the file import module to obtain basic information of the processed model includes: acquiring components of an ABAQUS finite element model which needs to be analyzed and is specified by a user and a calculation step of the ABAQUS finite element model; corresponding the key points to the components of the ABAQUS finite element model according to the corresponding relation between the local coordinates of the components of the ABAQUS finite element model and the overall coordinates after assembly modeling; determining a stress selection position of a stress field unit of the RPT file according to the read RPT file information; analyzing the parts of the ABAQUS finite element model selected by the user, and generating the open caisson side wall profile corresponding to the parts of the ABAQUS finite element model selected by the user; and processing the necessary read-in file to obtain the basic information of the processed model.
Further, the basic data file processing module further comprises: for transforming the part coordinates and the assembly into overall model coordinates of the ABAQUS finite element model.
Further, the calculation module includes: the computing module is used for enabling a user to customize the direction of the resultant force of each key point.
Further, the result presentation module comprises: the result display module displays the result of the stress resultant force of the key points in a three-dimensional histogram mode, and imports the display result into a document for storage; or the three-dimensional histograms corresponding to different calculation steps generated by the result display module are switched, so that the user can perform operations of zooming, rotating and picture saving on each three-dimensional histogram.
Further, the result display module further comprises: the user-defined three-dimensional histogram cylinder shape is a quadrangular prism or a cylinder; or, the user self-defines the color of the cylinder of the three-dimensional histogram; or, the user self-defines basic drawing options of the three-dimensional histogram, wherein the basic drawing options comprise the integral scaling of the graph, the minimum scale of a coordinate axis, font and word size of the coordinate axis and the title content of the coordinate axis; or, defining key points of other parts of the open caisson by a user to correspond to the cross section shape of the open caisson; or if the user imports the stress measured value of the key point of the open caisson in the file import module, comparing and displaying the calculated stress resultant force value and the stress measured value of the key point in the result display module; or, the user can customize the type of the result import document to be a pdf document or a word document; and the other parts of the open caisson are the open caisson side contour surface and other parts except the end part of the open caisson.
According to another aspect of the present invention, the present invention further provides an ABAQUS-based open caisson key point calculated stress automatic extraction and analysis method, including: s10, environment construction: installing ABAQUS software and MATLAB software; s20, function realization: s201, developing and compiling a program script and an interface of a system function by adopting MATLAB GUI; s202, packaging the program compiled in the S201 into an ABAQUS-based open caisson key point calculation stress automatic extraction and analysis system in an executable file format by adopting MATLAB; s30, basic file acquisition: s301, modeling, calculating and analyzing the open caisson project by using ABAQUS finite element software; s302, displaying a calculation result by using ABAQUS CAE, and generating and exporting a stress field report output file; s303, preparing a key point coordinate file according to a system specified file format; s40, file import: s401, importing a model basic information file generated by modeling calculation of ABAQUS software; s402, importing the stress field report output file prepared in the S302; s403, importing the key point coordinate file prepared in the S303; s50, basic data file processing: s501, a user specifies components and calculation steps of the ABAQUS finite element model to be analyzed; s502, the system corresponds key points to the components of the ABAQUS finite element model according to the corresponding relation between the local coordinates of the components of the ABAQUS finite element model and the overall coordinates after assembly modeling; s503, the system determines the stress selection position of the RPT file stress field unit according to the read RPT file information; s504, analyzing the components of the ABAQUS finite element model selected by the user in S501, generating the open caisson side wall profile corresponding to the components of the ABAQUS finite element model selected by the user, and unfolding the open caisson three-dimensional profile into a two-dimensional profile graph for later use; s60, calculation and analysis: s601, according to the stress selection position of the stress field unit of the RPT file, the system judges and searches the node or unit closest to the key point, and extracts the corresponding stress component from the RPT file; (ii) a S602, calculating stress resultant force at each key point; s603, calculating the resultant force difference value of each key point between different calculation steps selected by a user; s604, carrying out statistical analysis on the key point resultant force value corresponding to each calculation step; s70, result display: s701, drawing a three-dimensional histogram according to the calculated stress resultant force of the key points and default setting of the system by the system, and displaying a result in the form of the three-dimensional histogram; s702, automatically importing the display result into a document for storage.
Further, the open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS further comprises the following steps: if the user imports the stress actual measurement value of the key point of the open caisson in the file import module, the calculated stress resultant force value and the stress actual measurement value of the key point are contrastingly displayed in the result display module.
Further, the open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS further comprises the following steps: the type of the document imported by the user in the user-defined result is pdf document or word document.
Has the advantages that:
the invention provides an open caisson key point calculation stress automatic extraction and analysis system and method based on ABAQUS, wherein a necessary read-in file is read into a program through a file import module, the necessary read-in file comprises a model basic file of ABAQUS finite element modeling analysis, a finite element calculation stress result file and a coordinate file of a user-defined key point, the model basic file comprises model basic information, the finite element calculation stress result file comprises finite element calculation stress result information, and the coordinate file of the user-defined key point comprises the coordinate information of the user-defined key point. The basic data file processing module processes a necessary read-in file in the read-in files of the file import module to obtain basic information of the processed model; the calculation module calculates the stress component of the key points, the resultant force difference value of each key point between different construction steps selected by a user according to the basic information of the processed model, performs statistical analysis on the resultant force of the key points, and automatically saves each calculation result file in the designated position of the system; and the result display module outputs and displays the resultant force at the key point of the open caisson. Then, the calculated stress of the key point position concerned by the user in the open caisson can be automatically extracted in batches, the stress of the key point is analyzed, and the stress is visually displayed in a three-dimensional histogram form; meanwhile, the system has various functions and strong pertinence, can liberate related personnel from complex ABAQUS finite element analysis post-processing work, greatly improves the working efficiency, realizes visual display effect, and is favorable for conveniently and rapidly controlling open caisson engineering. Therefore, the technical effects of improving the working efficiency of ABAQUS finite element analysis post-processing, saving time and labor and reducing the error rate in the analysis processing process are achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a structural diagram of an open caisson key point calculation stress automatic extraction and analysis system provided by an embodiment of the present invention;
fig. 2 is a schematic flow chart of an open caisson key point calculation stress automatic extraction analysis method based on ABAQUS according to an embodiment of the present invention.
Detailed Description
The invention discloses an open caisson key point calculation stress automatic extraction and analysis system and method based on ABAQUS, wherein a mandatory read-in file is read into a program through a file import module 10, the mandatory read-in file comprises a model basic file of ABAQUS finite element modeling analysis, a finite element calculation stress result file and a coordinate file of a user-defined key point, the model basic file comprises model basic information, the finite element calculation stress result file comprises finite element calculation stress result information, and the coordinate file of the user-defined key point comprises the coordinate information of the user-defined key point. The basic data file processing module 20 processes a necessary read-in file in the read-in files of the file import module 10 to obtain basic information of the processed model; the calculation module 30 calculates the stress component of the key point, the resultant force at the key point, the resultant force difference value of each key point between different construction steps selected by the user according to the basic information of the processed model, performs statistical analysis on the resultant force at the key point, and automatically saves each calculation result file in the designated position of the system; and the result display module 40 outputs and displays the resultant force at the key points of the open caisson. Then, the calculation stress of the key point position concerned by the user in the open caisson can be automatically extracted in batches, the stress of the key point is analyzed, and the stress is visually displayed in a three-dimensional histogram form; meanwhile, the system has various functions and strong pertinence, can liberate related personnel from complex ABAQUS finite element analysis post-processing work, greatly improves the working efficiency, realizes visual display effect, and is favorable for conveniently and rapidly controlling open caisson engineering. Therefore, the technical effects of improving the working efficiency of ABAQUS finite element analysis post-processing, saving time and labor and reducing the error rate in the analysis processing process are achieved.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by one skilled in the art based on the embodiments of the present invention, belong to the protection scope of the present invention; the "and/or" keyword referred to in this embodiment represents sum or two cases, in other words, a and/or B mentioned in the embodiment of the present invention represents two cases of a and B, a or B, and describes three states in which a and B exist, such as a and/or B, representing: only A does not include B; only B is included and A is not included; comprises A and B.
Also, the terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Referring to fig. 1, an open caisson key point calculation stress automatic extraction and analysis system provided in an embodiment of the present invention includes a file import module 10, a basic data file processing module 20, a calculation module 30, and a result display module 40, and the following detailed description is now respectively performed on the file import module 10, the basic data file processing module 20, the calculation module 30, and the result display module 40:
for the file import module 10:
the method comprises the steps that a mandatory read-in file is read into a program, the mandatory read-in file comprises a model basic file, a finite element calculation stress result file and a coordinate file of a user-defined key point, wherein the model basic file comprises model basic information, the finite element calculation stress result file comprises finite element calculation stress result information, and the coordinate file of the user-defined key point comprises coordinate information of the user-defined key point; the file import module 10 further includes: importing stress measured values of key points into a program; importing a profile file of the open caisson cross section shape into a program; importing a column color setting file for the three-dimensional histogram of the user-defined result display module 40 into the program; and importing a file of the custom calculation module 30 for the resultant force direction of each key point into the program.
Specifically, environment building is performed by installing ABAQUS software and MATLAB software in the file import module 10. Developing and programming a program script and an interface of a system function by using MATLAB GUI in the following S201; in the following S202, the program compiled in S201 is packaged by MATLAB into an ABAQUS-based open caisson key point calculation stress automatic extraction and analysis system in an executable file format (exe format) to implement functions. Modeling the open caisson by using ABAQUS finite element software in the following S301, and calculating and analyzing; in the following S302, the calculation result is displayed by using ABAQUS CAE, and a stress field report output file (RPT file) is generated and exported, namely, the RPT file refers to the stress field report output file; in S303 described below, a file format is defined by the system, and a key point coordinate file is prepared to acquire a basic file. In S302, a user is required to sequentially derive stress fields corresponding to all steps concerned; the stress field output variable position (position) is selected according to the user requirement, and six stress components S11, S22, S33, S12, S13 and S23 are required to be output. In addition, the step of obtaining the basic document further includes that a user prepares a key point stress measured value file, and the user prepares an open caisson section shape diagram file and a histogram color setting file so as to customize the three-dimensional histogram of the result display module 40. The user prepares a key point resultant force direction file to customize key point resultant force directions at the calculation module 30. A model basic information file (INP file) generated by ABAQUS software modeling calculation is imported in the following S401; a stress field report output file (RPT file) prepared in S302 is introduced in S402; in S403 described below, the key point coordinate file prepared in S303 described below is imported, and file import is performed. Other optional files prepared in S30 described below may also be imported into the file import.
For the underlying data file processing module 20:
the system comprises a file import module 10, a file processing module, a model processing module and a model output module, wherein the file import module is used for processing the optional read-in file in the read-in file of the file import module 10 to obtain basic information of the processed model; if the calculation steps of obtaining the parts of the ABAQUS finite element model needing to be analyzed specified by the user and the ABAQUS finite element model are obtained; corresponding the key points to the components of the ABAQUS finite element model according to the corresponding relation between the local coordinates of the components of the ABAQUS finite element model and the overall coordinates after assembly modeling; determining a stress selection position of a RPT stress field unit according to the read RPT file information; and analyzing the part of the ABAQUS finite element model selected by the user, and generating the open caisson side wall profile corresponding to the part of the ABAQUS finite element model selected by the user to process the necessary read-in file to obtain the basic information of the processed model. For transforming the part coordinates and the assembly into overall model coordinates of the ABAQUS finite element model.
Specifically, the basic data file processing module 20 includes the following functions: analyzing a basic data file to obtain basic information, such as parts (part) and calculation steps (step) of the ABAQUS finite element model, and listing all parts and step of the model for the convenience of user selection; analyzing a stress result file read in the file import module 10, and determining a variable position (position) of stress field output; and analyzing the part selected by the user in the module, generating the contour of the side wall of the open caisson corresponding to the part selected by the user, unfolding the three-dimensional contour into a two-dimensional contour graph, and facilitating the result display of the result display module 40. The basic data file processing module 20 may also perform a transformation of the ABAQUS finite element model part coordinates and the assembly integral model (assembly) coordinates.
In addition, part and step to be analyzed are specified by the user in S501 below; in the following S502, the system corresponds the key point to part according to the correspondence between the part local coordinates and the assembly-modeled global coordinates; in the following S503, the system determines a stress selection position (position) of a stress field unit of the RPT file according to the read RPT file information; and in the following step S504, the part selected by the user is analyzed in step S501, and the caisson side wall profile corresponding to the part selected by the user is generated to obtain the basic information of the processed model, so as to process the basic data file. Expanding the three-dimensional contour of the open caisson into a two-dimensional contour graph for standby, wherein the part and step needing to be analyzed by the user in the following S501 comprise: the system processes and analyzes the INP file read in the S401 to generate a part list; the user selects a single part or a plurality of parts concerned by the user from the generated part list; the system processes and analyzes the RPT file read in by S401, and generates a step list; the user selects a single step or a plurality of steps of interest to the user from the generated step list. The following step S502 is that the system correspondingly includes the key point and part according to the correspondence between the part local coordinates and the assembly-modeled overall coordinates: the system extracts related information of part selected by a user in the following S501 from the INP file according to part assembly information in the INP file, and converts local coordinates of the part into overall coordinates (assembly coordinates) after assembly modeling; the system compares the part information after the coordinate conversion with the key point coordinate information read in step S403, and associates the key point with the part.
For the calculation module 30:
calculating stress components of key points, resultant force at the key points, a resultant force difference value of each key point between different construction steps selected by a user according to the basic information of the processed model, performing statistical analysis on the resultant force at the key points, and automatically storing each calculation result file in an appointed position of the system; the calculation module 30 is used for the user to customize the direction of the resultant force of each key point.
Specifically, the user can customize the resultant force direction of each key point in the calculation module 30. Searching a node or a unit closest to the key point through the following S601 system, and extracting a corresponding stress component from the RPT file; calculating stress resultant force at each key point in the following S602; in the following step S603, a resultant force difference value of each key point between different steps selected by the user is calculated; statistical analysis is performed on the resultant force value of the key point corresponding to each step in S604 described below. The following step S601 of searching for a node or a unit closest to the key point includes: judging the position type according to the stress selection position judgment (position) determined in the following S503, namely whether the stress component of the key point is extracted by the node or the unit; if the stress component of the key point is to be extracted from the node, searching the node closest to the key point; if the stress component of the key point is to be extracted by the unit, searching the unit which is located away from the key point; if the key point is located in two or more cells at the same time or at the same distance from two or more nodes, then the stress average is taken during subsequent calculations. In the following S602, when calculating the resultant force of stress at each key point, the user needs to input a uniform resultant force direction for all key points, and when the user inputs a vacancy, the default resultant force direction is vertical upward. The statistical analysis of the resultant force of the key points in S604 includes statistical maximum, minimum, and average values of the resultant force, and analysis of whether the calculated resultant force value at each key point is valid. If the user selects to import the key point resultant force direction file when the S40 file is imported, the key point resultant force directions may also be determined sequentially and respectively according to the file, and at this time, the key point resultant force directions may be different.
For the results presentation module 40:
the method is used for outputting and displaying the resultant force at the key point of the open caisson. The result display module 40 displays the result of the stress resultant force of the key points in a three-dimensional histogram mode, and imports the display result into a document for storage; or, the three-dimensional histograms corresponding to different calculation steps generated by the result display module 40 are switched, so that the user can perform operations of zooming, rotating and storing pictures on each three-dimensional histogram. The result display module 40 further includes: the user self-defines the shape of the three-dimensional column diagram cylinder as a quadrangular prism or a cylinder; or, the user defines the color of the cylinder of the three-dimensional histogram; or, the user self-defines basic drawing options of the three-dimensional histogram, wherein the basic drawing options comprise the integral scaling of the graph, the minimum scale of a coordinate axis, font and word size of the coordinate axis and the title content of the coordinate axis; or, the user self-defines the section shape of the open caisson corresponding to the key points of other parts of the open caisson; or, if the user imports the stress measured value of the open caisson key point in the file import module 10, the resultant force value of the calculated stress and the stress measured value of the key point are displayed in a comparison manner in the result display module 40; or, the user can customize the type of the result import document to be a pdf document or a word document; the other parts of the open caisson refer to the profile surface on the open caisson side and other parts except the end part of the open caisson.
Specifically, the result display module 40 displays the result of the stress resultant force of the key points in the form of a three-dimensional histogram, and imports the display result into a document for storage. The three-dimensional histograms corresponding to different steps generated by the result display module 40 are convenient to switch, and a user can perform operations of zooming, rotating and storing pictures on each three-dimensional histogram. The result presentation module 40 also comprises the following functions: the user self-defines the shape of the three-dimensional column diagram cylinder as a quadrangular prism or a cylinder; the user self-defines the color of the cylinder of the three-dimensional histogram; the user self-defines basic drawing options of the three-dimensional bar chart, such as the integral scaling of the graph, the minimum scale of a coordinate axis, the font and the word size of the coordinate axis, the title content of the coordinate axis and the like; the user self-defines the open caisson end key point, the open caisson side profile and other parts (hereinafter referred to as open caisson other parts) except the open caisson end, and the open caisson section shape corresponding to the key point; if the user imports the stress measured value of the open caisson key point in the file import module 10, the result display module 40 can compare and display the calculated stress resultant force and the stress measured value of the key point; the user can customize the type of the result import document into a pdf document or a word document.
The invention provides an open caisson key point calculation stress automatic extraction and analysis system based on ABAQUS, which is characterized in that a mandatory read-in file is read into a program through a file import module 10, the mandatory read-in file comprises a model basic file of ABAQUS finite element modeling analysis, a finite element calculation stress result file and a coordinate file of a user-defined key point, the model basic file comprises model basic information, the finite element calculation stress result file comprises finite element calculation stress result information, and the coordinate file of the user-defined key point comprises the coordinate information of the user-defined key point. The basic data file processing module 20 processes a necessary read-in file in the read-in files of the file import module 10 to obtain basic information of the processed model; the calculation module 30 calculates the stress component of the key point, the resultant force at the key point, the resultant force difference value of each key point between different construction steps selected by the user according to the basic information of the processed model, performs statistical analysis on the resultant force at the key point, and automatically saves each calculation result file in the designated position of the system; and the result display module 40 is used for outputting and displaying the resultant force at the key point of the open caisson. Then, the calculated stress of the key point position concerned by the user in the open caisson can be automatically extracted in batches, the stress of the key point is analyzed, and the stress is visually displayed in a three-dimensional histogram form; meanwhile, the system has various functions and strong pertinence, relevant personnel can be liberated from complex ABAQUS finite element analysis post-processing work, the working efficiency is greatly improved, the visual display effect is realized, and the open caisson engineering can be conveniently and rapidly controlled. Therefore, the technical effects of improving the working efficiency of ABAQUS finite element analysis processing, saving time and labor and reducing the error rate of the analysis post-processing process are achieved.
Based on the same inventive concept, the application provides an open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS, which corresponds to the first embodiment, and the details are shown in the second embodiment.
Example two
As shown in fig. 2, fig. 2 is a flowchart of an open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS according to an embodiment of the present invention. The embodiment of the invention provides an open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS, which comprises the following steps:
s10, environment construction: installing ABAQUS software and MATLAB software;
s20, function realization: s201, developing and compiling a program script and an interface of a system function by adopting MATLAB GUI; s202, packaging the program compiled in the S201 into an ABAQUS-based open caisson key point calculation stress automatic extraction and analysis system in an executable file format by adopting MATLAB;
s30, acquiring a basic file: s301, modeling, calculating and analyzing the open caisson project by using ABAQUS finite element software; s302, displaying a calculation result by using ABAQUS CAE, and generating and exporting a stress field report output file; s303, preparing a key point coordinate file according to a file format specified by a system;
s40, file import: s401, importing a model basic information file generated by ABAQUS software modeling calculation; s402, importing the stress field report output file prepared in the S302; s403, importing the key point coordinate file prepared in the S303;
s50, basic data file processing: s501, a user specifies components and calculation steps of the ABAQUS finite element model to be analyzed; s502, the system corresponds the key points to the components of the ABAQUS finite element model according to the corresponding relation between the local coordinates of the components of the ABAQUS finite element model and the overall coordinates after assembly modeling; s503, the system determines the stress selection position of the RPT file stress field unit according to the read RPT file information; s504, analyzing the components of the ABAQUS finite element model selected by the user in S501, generating the open caisson side wall profile corresponding to the components of the ABAQUS finite element model selected by the user, and unfolding the open caisson three-dimensional profile into a two-dimensional profile graph for later use;
s60, calculation and analysis: s601, according to the stress selection position of the stress field unit of the RPT file, the system judges and searches the node or unit closest to the key point, and extracts the corresponding stress component from the RPT file; s602, calculating stress resultant force at each key point; s603, calculating the resultant force difference value of each key point between different calculation steps selected by a user; s604, carrying out statistical analysis on the key point resultant force value corresponding to each calculation step;
s70, result display: s701, drawing a three-dimensional histogram according to the calculated stress resultant force of the key points and default setting of the system by the system, and displaying a result in the form of the three-dimensional histogram; and S702, automatically importing the display result into a document for storage. The open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS further comprises the following steps: if the user imports the stress actual measurement value of the key point of the open caisson in the file import module 10, the calculated stress resultant force value and the stress actual measurement value of the key point are contrastingly displayed in the result display module 40. The open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS further comprises the following steps: and the type of the imported document in the user-defined result is a pdf document or a word document.
Specifically, the environment building is performed by installing ABAQUS software and MATLAB software. S201, developing and compiling a program script and an interface of a system function by using MATLAB GU I; s202, encapsulating the program compiled in the step 2 a) into an ABAQUS-based open caisson key point calculation stress automatic extraction and analysis system in an executable file format (exe format) by using MATLAB to realize functions. Modeling, calculating and analyzing the open caisson project by utilizing ABAQUS finite element software through S301; s302, displaying a calculation result by using the ABAQUS CAE, and generating and exporting a stress field report output file (RPT file); s303, preparing a key point coordinate file according to a file format specified by a system to acquire a basic file. In S302, a user is required to sequentially derive stress fields corresponding to all steps concerned; the stress field output variable position (position) is selected according to the user requirement, and six stress components S11, S22, S33, S12, S13 and S23 are required to be output. In addition, the step of obtaining the basic document further includes that a user prepares a key point stress measured value file, and the user prepares an open caisson section shape diagram file and a histogram color setting file so as to customize the three-dimensional histogram of the result display module 40. The user prepares a key point resultant force direction file to customize key point resultant force directions at the calculation module 30. S401, importing a model basic information file (INP file) generated by ABAQUS software modeling calculation; s402, importing the stress field report output file (RPT file) prepared in the S302; s403, the key point coordinate file prepared in S303 is imported, and file import is performed. Other optional files prepared in S30 may also be imported in the file import.
In S501, the part and step to be analyzed are designated by the user; s502, the system corresponds the key points to the part according to the corresponding relation between the part local coordinates and the whole coordinates after assembly modeling; s503, the system determines a stress selection position (position) of a stress field unit of the RPT file according to the read RPT file information; and S504, analyzing the part selected by the user in S501, generating the open caisson side wall contour corresponding to the part selected by the user, and obtaining the basic information of the processed model to process the basic data file. Expanding the three-dimensional contour of the open caisson into a two-dimensional contour graph for standby, wherein in S501, the step and part required to be analyzed by a user comprise the following steps: the system processes and analyzes the INP file read in by S401 to generate a part list; the user selects a single part or a plurality of parts concerned by the user from the generated part list; the system processes and analyzes the RPT file read in by S401, and generates a step list; the user selects a single step or a plurality of steps of interest to the user from the generated step list. In the step S502, the system corresponds the key point and part according to the correspondence between the part local coordinate and the assembly-modeled global coordinate, including: the system extracts relevant information of part selected by a user from the INP file in S501 according to the part assembling information in the INP file, and converts local coordinates of the part into overall coordinates (assembly coordinates) after assembling modeling; the system compares the part information after the coordinate conversion with the key point coordinate information read in step S403, and associates the key point with the part.
Searching a node or a unit closest to the key point through the system in the S601, and extracting a corresponding stress component from the RPT file; s602, calculating stress resultant force at each key point; s603, calculating the resultant force difference value of each key point between different steps selected by a user; and S604, carrying out statistical analysis on the key point resultant force value corresponding to each step. The step S601 of searching for the node or cell closest to the key point includes: judging the position type according to the stress selection position judgment (position) determined in the step S503, namely whether the stress component of the key point is extracted by the node or the unit; if the stress component of the key point is to be extracted from the node, searching the node closest to the key point; if the stress component of the key point is to be extracted by the unit, searching the unit which is located away from the key point; if the keypoint is located in two or more cells at the same time or is at the same distance from two or more nodes, then the stress average is taken during subsequent calculations. S602, when calculating stress resultant force at each key point, a user needs to input a uniform resultant force direction of all the key points, and when the user inputs a vacancy, the default resultant force direction is vertically upward. S604, the statistical analysis of the resultant force of the key points comprises the maximum value, the minimum value and the average value of the statistical resultant force, and whether the calculated resultant force value at each key point is effective or not is analyzed. If the user selects to import the key point resultant force direction file when the S40 file is imported, the key point resultant force directions may also be sequentially determined according to the file, and at this time, the key point resultant force directions may be different.
Drawing a three-dimensional histogram according to the calculated stress resultant force of the key points and default setting of the system by the S701 system, and displaying the result in the form of the three-dimensional histogram; s702 displays the result, automatically imports the document, saves the document and displays the result. In S701 the key points are divided into 3 parts: key points at the end part of the open caisson, key points on the profile surface of the open caisson side and key points at other parts of the open caisson. Three parts of key points are separated during drawing of the three-dimensional histogram: drawing the key point stress three-dimensional histogram at the end part of the open caisson on the same horizontal plane, wherein the x coordinate and the y coordinate of the central point at the bottom of the cylinder are the x value and the y value of the stress coordinate of the key point, the z coordinate of the central point at the bottom is 0, the height of the cylinder is the value of the stress resultant force of the key point after being scaled by a default scaling ratio, and the size of the bottom surface is defaulted by a system; the resultant force drawing of key points at other parts of the open caisson is similar to the key points at the end part of the open caisson, but a three-dimensional histogram is separately drawn on another graph and is not displayed on the same three-dimensional histogram as the key points at the end part of the open caisson; and (4) drawing a two-dimensional contour graph expanded by the three-dimensional contour graph in S504 by using the open caisson side contour key point histogram, wherein the bottom center is positioned on the two-dimensional contour graph, the coordinate is converted by an actual coordinate, and the rest part is the same as the open caisson end key point stress three-dimensional histogram. The three-dimensional histograms corresponding to different steps and different key point positions generated in the step 701 are convenient to switch, and a user can zoom, rotate and store pictures of each three-dimensional histogram. And S702, sequentially screenshot and storing all three-dimensional bar graphs according to step and key point positions, wherein the graph names correspond to the screenshot one by one, and the format of the document is in a default pdf format. S701, when the three-dimensional histogram is generated, a user can customize the shape of a three-dimensional histogram cylinder into a quadrangular prism or a cylinder; s701, when the three-dimensional histogram is generated, a user can customize the color of a cylinder of the three-dimensional histogram; s701, when the three-dimensional histogram is generated, a user can customize basic drawing options of the three-dimensional histogram, such as the integral scaling of the graph, the minimum scale of a coordinate axis, font and font sizes of the coordinate axis, the title content of the coordinate axis and the like; s701, when the three-dimensional histogram is generated, a user can customize the cross-sectional shapes of the open caisson at the end part and key points at other parts of the open caisson by using the cross-sectional shape diagram of the open caisson introduced in S40; if the user imports the stress measured value of the open caisson key point in the file import module 10, the result display module 40 can compare and display the calculated stress resultant force and the stress measured value of the key point; the user can customize the type of the result import document into a pdf document or a word document.
The invention provides an open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS, which comprises the following steps of S10 and environment construction: installing ABAQUS software and MATLAB software; s20, function realization: s201, developing and compiling a program script and an interface of a system function by adopting an MATLAB GUI; s202, packaging the program compiled in the S201 into an ABAQUS-based open caisson key point calculation stress automatic extraction and analysis system in an executable file format by adopting MATLAB; s30, basic file acquisition: s301, modeling, calculating and analyzing the open caisson project by using ABAQUS finite element software; s302, displaying a calculation result by using ABAQUS CAE, and generating and exporting a stress field report output file; s303, preparing a key point coordinate file according to a file format specified by a system; s40, file import: s401, importing a model basic information file generated by modeling calculation of ABAQUS software; s402, importing the stress field report output file prepared in the S302; s403, importing the key point coordinate file prepared in the S303; s50, basic data file processing: s501, a user specifies components and calculation steps of the ABAQUS finite element model to be analyzed; s502, the system corresponds key points to the components of the ABAQUS finite element model according to the corresponding relation between the local coordinates of the components of the ABAQUS finite element model and the overall coordinates after assembly modeling; s503, the system determines the stress selection position of the RPT file stress field unit according to the read RPT file information; s504, analyzing the components of the ABAQUS finite element model selected by the user in S501, generating the open caisson side wall profile corresponding to the components of the ABAQUS finite element model selected by the user, and unfolding the open caisson three-dimensional profile into a two-dimensional profile graph for later use; s60, calculation and analysis: s601, searching a node or a unit closest to the key point by the system, and extracting a corresponding stress component from the RPT file; s602, calculating stress resultant force at each key point; s603, calculating the resultant force difference value of each key point between different calculation steps selected by a user; s604, carrying out statistical analysis on the key point resultant force value corresponding to each calculation step; s70, result display: s701, drawing a three-dimensional histogram according to the calculated stress resultant force of the key points and default setting of the system by the system, and displaying a result in the form of the three-dimensional histogram; and S702, automatically importing the display result into a document for storage. Therefore, the technical effects of improving the working efficiency of ABAQUS finite element analysis post-processing, saving time and labor and reducing the error rate of the analysis processing process are achieved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass these modifications and variations.
Claims (8)
1. The open caisson key point calculation stress automatic extraction and analysis system based on ABAQUS is characterized by comprising the following steps:
the file import module comprises a mandatory read-in file for reading in a program, wherein the mandatory read-in file comprises a model basic file for ABAQUS finite element modeling analysis, a finite element calculation stress result file and a coordinate file for a user-defined key point, the model basic file comprises model basic information, the finite element calculation stress result file comprises finite element calculation stress result information, and the coordinate file for the user-defined key point comprises coordinate information of the user-defined key point;
the basic data file processing module is used for processing the optional read-in files in the read-in files of the file import module to obtain basic information of the processed model;
the calculation module is used for calculating the stress component of the key points, the resultant force difference value of each key point between different construction steps selected by a user according to the basic information of the processed model, performing statistical analysis on the resultant force of the key points, and automatically storing each calculation result file in an appointed position of the system;
the result display module is used for outputting and displaying the resultant force at the key point of the open caisson;
the file import module further comprises: importing measured values of stress of key points into a program; importing a profile file of the open caisson cross section shape into a program; importing a column body color setting file for a three-dimensional histogram of a user-defined result display module into a program; importing a file for customizing the resultant force direction of each key point of a calculation module into a program;
the step of processing the optional read-in file in the read-in files of the file import module to obtain the basic information of the processed model comprises the following steps:
acquiring the part of the ABAQUS finite element model which is specified by a user and needs to be analyzed and the calculation step of the ABAQUS finite element model;
corresponding the key points to the components of the ABAQUS finite element model according to the corresponding relation between the local coordinates of the components of the ABAQUS finite element model and the overall coordinates after assembly modeling;
determining a stress selection position of a RPT stress field unit according to the read RPT file information;
and analyzing the parts of the ABAQUS finite element model selected by the user, generating the open caisson side wall profile corresponding to the parts of the ABAQUS finite element model selected by the user, and processing a necessary read-in file to obtain basic information of the processed model.
2. The ABAQUS-based open caisson key point computational stress automated extraction and analysis system of claim 1, wherein the base data file processing module further comprises:
for transforming the part coordinates and the assembly global model coordinates of the ABAQUS finite element model.
3. The ABAQUS-based open caisson critical point calculated stress automated extraction and analysis system of claim 1, wherein the calculation module comprises:
the computing module is used for enabling a user to customize the direction of the resultant force of each key point.
4. The ABAQUS-based open caisson key point calculated stress automated extraction and analysis system of claim 1, wherein the results presentation module comprises:
the result display module displays the result of the stress resultant force of the key points in a three-dimensional histogram mode, and imports the display result into a document for storage;
or the three-dimensional histograms corresponding to different calculation steps generated by the result display module are switched, so that the user can perform operations of zooming, rotating and picture saving on each three-dimensional histogram.
5. The ABAQUS-based open caisson critical point calculated stress automated extraction and analysis system of claim 4, wherein the result presentation module further comprises:
the user self-defines the shape of the three-dimensional column diagram cylinder as a quadrangular prism or a cylinder;
or, the user defines the color of the cylinder of the three-dimensional histogram;
or, the user self-defines basic drawing options of the three-dimensional histogram, wherein the basic drawing options comprise the integral scaling of the graph, the minimum scale of a coordinate axis, font and word size of the coordinate axis and the title content of the coordinate axis;
or, the user self-defines the section shape of the open caisson corresponding to the key points of other parts of the open caisson;
or if the user imports the stress measured value of the key point of the open caisson in the file import module, comparing and displaying the calculated stress resultant force value and the stress measured value of the key point in the result display module;
or the type of the user-defined result import document is a pdf document or a word document;
and the other parts of the open caisson are the open caisson side contour surface and other parts except the end part of the open caisson.
6. An open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS is characterized in that the open caisson key point calculation stress automatic extraction and analysis method based on ABAQUS comprises the following steps:
s10, environment construction: installing ABAQUS software and MATLAB software;
s20, function realization:
s201, developing and compiling a program script and an interface of a system function by adopting MATLAB GUI;
s202, packaging the program compiled in the S201 into an ABAQUS-based open caisson key point calculation stress automatic extraction and analysis system in an executable file format by adopting MATLAB;
s30, basic file acquisition:
s301, modeling, calculating and analyzing the open caisson project by using ABAQUS finite element software;
s302, displaying a calculation result by using ABAQUS CAE, and generating and exporting a stress field report output file;
s303, preparing a key point coordinate file according to a file format specified by a system;
s40, file import:
s401, importing a model basic information file generated by modeling calculation of ABAQUS software;
s402, importing the stress field report output file prepared in the S302;
s403, importing the key point coordinate file prepared in the S303;
s50, basic data file processing:
s501, a user specifies components and calculation steps of the ABAQUS finite element model to be analyzed;
s502, the system corresponds the key points to the components of the ABAQUS finite element model according to the corresponding relation between the local coordinates of the components of the ABAQUS finite element model and the overall coordinates after assembly modeling;
s503, the system determines the stress selection position of the RPT file stress field unit according to the read RPT file information;
s504, analyzing the part of the ABAQUS finite element model selected by the user in S501, generating the open caisson side wall profile corresponding to the part of the ABAQUS finite element model selected by the user, and unfolding the open caisson three-dimensional profile into a two-dimensional profile graph for later use;
s60, calculation and analysis:
s601, according to the stress selection position of the stress field unit of the RPT file, a system judges and searches a node or a unit closest to a key point, and extracts a corresponding stress component from the RPT file;
s602, calculating stress resultant force at each key point;
s603, calculating the resultant force difference value of each key point between different calculation steps selected by a user;
s604, carrying out statistical analysis on the key point resultant force value corresponding to each calculation step;
s70, result display:
s701, drawing a three-dimensional histogram according to the calculated stress resultant force of the key points and default setting of the system by the system, and displaying a result in the form of the three-dimensional histogram;
s702, automatically importing the display result into a document for storage.
7. The ABAQUS-based open caisson key point calculated stress automatic extraction and analysis method of claim 6, wherein the ABAQUS-based open caisson key point calculated stress automatic extraction and analysis method further comprises:
and if the user imports the stress measured value of the key point of the open caisson in the file import module, comparing and displaying the calculated stress resultant force value and the stress measured value of the key point in the result display module.
8. The ABAQUS-based open caisson key point calculated stress automatic extraction and analysis method of claim 7, wherein the ABAQUS-based open caisson key point calculated stress automatic extraction and analysis method further comprises:
the type of the document imported by the user in the user-defined result is pdf document or word document.
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