CN117494532A - Automatic finite element pretightening force data batch transmission and simulation calculation control method - Google Patents
Automatic finite element pretightening force data batch transmission and simulation calculation control method Download PDFInfo
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Abstract
The invention provides an automatic finite element pretightening force data batch transmission and simulation calculation control method, which comprises the steps of performing simulation setting on the structure of a fastener in simulation analysis software; outputting the simulation setting result as an original file; the pretightening force data of the fasteners are read in batches and imported into simulation analysis software; creating new original files in batches according to the user demands and the original files after simulation verification; writing the pretightening force data imported into the simulation analysis software into a new original file; and executing simulation calculation to obtain a simulation analysis result. The invention has the beneficial effects that: the complex setting for preloading force loading in the ABAQUS operation interface and the manual submitting and waiting process for batch finite element simulation analysis files are omitted, and the user operation efficiency of batch simulation analysis of the bolt group connection structure is greatly improved.
Description
Technical Field
The invention belongs to the field of simulation calculation, and particularly relates to an automatic finite element pretightening force data batch transmission and simulation calculation control method.
Background
In the existing Bolt connection structure simulation analysis based on ABAQUS finite element simulation software, the pretightening force data is required to be loaded in a Bolt Load tab of a Load interface through a manual input method.
Each set of Bolt Load pretightening force data is set by performing at least 11 steps of operations such as Load, create, select Load, input name, setting step, content, select interface type, select interface, select Load type, set pretightening force amplitude, confirm parameter input, and the like, a plurality of bolts are usually arranged in one Bolt set connecting structure, if different pretightening force distribution conditions are required to be simulated, a plurality of Bolt set simulation models are required to be set, and therefore, in pretightening force setting links, setting is usually completed in tens of steps or hundreds of steps.
And the batch simulation model submission needs to wait for the calculation of the last simulation process to be completed before submitting the next simulation model.
Therefore, batch pretightening force data input and simulation calculation submission aiming at the bolt group connecting structure are highly programmed operation and require a great deal of time and static force.
Disclosure of Invention
In view of the above, the present invention is directed to an automated finite element pretension data batch transfer and simulation calculation control method for solving at least one of the above-mentioned problems.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the first aspect of the invention provides an automated finite element pretightening force data batch transmission and simulation calculation control method, which comprises the following steps:
the structure of the fastener is simulated in simulation analysis software;
outputting the simulation setting result as an original file;
the pretightening force data of the fasteners are read in batches and imported into simulation analysis software;
creating new original files in batches according to the user demands and the original files after simulation verification;
writing the pretightening force data imported into the simulation analysis software into a new original file;
and executing simulation calculation to obtain a simulation analysis result.
Further, according to the user requirement and the original file after simulation verification, creating new original files in batch, and writing the pretightening force data imported into the simulation analysis software into the new original files, wherein the process comprises the following steps:
reading the set original file, and verifying the accuracy of simulation analysis on the original file;
using the verified original file as a template, and creating new original files in batches according to the requirements of users;
searching for a complete finite element simulation analysis step in the original file by adopting a regular expression according to the format specification of the simulation analysis software on the original file;
and traversing the pre-tightening force data of all the fasteners in each analysis step, and writing the pre-tightening force data of the fasteners into a new original file.
Further, the process of performing simulation calculation to obtain a simulation analysis result includes:
reading the name of an engineering file to be submitted for simulation calculation and the thread number setting of a user, generating a corresponding control script in a working catalog of simulation analysis software, and operating the control script to submit a single simulation calculation engineering file;
detecting the execution state of simulation calculation of a current engineering file, and detecting whether a next simulation analysis engineering file to be submitted exists when the simulation calculation is finished;
if the project file name and the thread number setting of the user which need to be submitted to simulation calculation are read again, and subsequent operation is executed;
and otherwise, ending the simulation calculation and outputting a simulation analysis result.
Further, according to the format specification of the simulation analysis software to the original file, the process of searching the complete finite element simulation analysis step in the original file by adopting the regular expression comprises the following steps:
matching and storing step names of each finite element simulation analysis step in the original file by using a regular expression;
and extracting and storing the step content of each finite element simulation analysis step by inquiring the starting position and the ending position of each finite element simulation analysis step.
Further, the process of traversing the pretension data of all fasteners in each analysis step includes:
traversing the content of finite element simulation analysis steps obtained by using regular expression search, and screening out the load information of the fastener;
extracting a load name in the load information, judging whether the extracted load name corresponds to a fastener, and if so, adding the load name into a fastener load name array;
traversing the fastener load name array, and extracting corresponding load data in the load information according to the load names recorded in the fastener load name array.
Further, the process of writing the pretension data of the fastener into the new original file includes:
searching the starting and stopping positions of each finite element simulation analysis step in a new original file;
and inserting the pretightening force data of the fastener into the corresponding position according to the starting and stopping positions of the finite element simulation analysis step in the new original file.
Furthermore, in the process of executing the simulation calculation, the operation control script submits only a single simulation calculation engineering file at a time, and in the calculation process of the simulation calculation engineering file, no submitting operation is performed.
A second aspect of the present invention provides an electronic device comprising a processor and a memory communicatively coupled to the processor for storing instructions executable by the processor, characterized by: the processor is configured to execute the automated finite element pretension data batch transfer and simulation calculation control method according to any one of the first aspect.
A third aspect of the present invention provides a server, characterized in that: the system comprises at least one processor and a memory in communication with the processor, wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the processor to cause the at least one processor to perform the automated finite element pretension data batch transfer and simulation calculation control method according to any one of the first aspect.
A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program, characterized in that: the computer program, when executed by a processor, implements the automated finite element pretension data batch transfer and simulation calculation control method according to any one of the first aspects.
Compared with the prior art, the automatic finite element pretightening force data batch transmission and simulation calculation control method has the following beneficial effects:
the complex setting for preloading force loading in the ABAQUS operation interface and the manual submitting and waiting process for batch finite element simulation analysis files are omitted, and the user operation efficiency of batch simulation analysis of the bolt group connection structure is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic flow chart of an automated finite element pretension data batch transfer and simulation calculation control method according to an embodiment of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
Embodiment one:
the automatic finite element pretightening force data batch transmission and simulation calculation control method comprises the following steps:
s1, performing simulation setting on the structure of a fastener in simulation analysis software;
s2, outputting the simulation setting result as an original file;
s3, batch reading of pretightening force data of the fasteners and importing the pretightening force data into simulation analysis software;
s4, creating new original files in batches according to the user requirements and the original files after simulation verification;
s5, writing the pretightening force data imported into the simulation analysis software into a new original file;
s6, performing simulation calculation to obtain a simulation analysis result.
In step S4 and step S5, according to the user requirement and the original file after verification through simulation, a new original file is created in batch, and the process of writing the pretightening force data imported into the simulation analysis software into the new original file includes:
s41, reading the set original file, and performing accuracy verification of simulation analysis on the original file;
s42, using the verified original file as a template, and creating new original files in batches according to the requirements of users;
s51, searching for a complete finite element simulation analysis step in the original file by adopting a regular expression according to format specification of simulation analysis software on the original file;
s52, traversing the pretightening force data of all the fasteners in each analysis step, and writing the pretightening force data of the fasteners into a new original file.
Step S6, performing simulation calculation, wherein the process of obtaining a simulation analysis result comprises the following steps:
s61, reading the name of the engineering file to be submitted for simulation calculation and the thread number setting of a user, generating a corresponding control script in a working catalog of simulation analysis software, and operating the control script to submit a single simulation calculation engineering file;
s62, detecting the execution state of simulation calculation of the current engineering file, and detecting whether a next simulation analysis engineering file to be submitted exists when the simulation calculation is finished;
s63, if the project file name and the thread number setting of the user which need to be submitted to simulation calculation are read again, and subsequent operation is executed;
s64, if not, ending the simulation calculation and outputting a simulation analysis result.
In step S51, according to the format specification of the simulation analysis software on the original file, the process of searching the complete finite element simulation analysis step in the original file by adopting the regular expression includes:
constructing a regular expression ' \step, name= ([ ≡j+), which is used for matching Step names of each finite element simulation analysis Step in an original file, wherein the regular expression is matched with a character string which starts with ' Step, name= ' and stops with comma as a stop, and the character string matched with the regular expression is stored in a step_name variable, so that all Step names can be found in subsequent processing conveniently;
and searching the starting position and the ending position of each finite element simulation analysis step, extracting and storing character strings between the starting position and the ending position to obtain the content of each finite element simulation analysis step, and storing the content in step_contents variables to facilitate the finding of the content of each finite element simulation analysis step in subsequent processing.
The process of traversing the pretension data of all fasteners in each analysis step in step S52 includes:
traversing the content of finite element simulation analysis steps in step_contents variables, searching the initial position of the LOADS character string in each finite element simulation analysis step, deleting the content in front of the LOADS character string in the analysis step, creating a variable 'step_i_loads_content' and storing the content behind the LOADS character string into the variable, wherein i in the variable is the index of the analysis step currently processed;
the content in the variable is the Load information of the fastener, using regular expressions formula ' \\\name: (Load- \d+) ' matching the Load names in the variables (matching Name is followed by a string of Load-and one or more digits), processing the matching result and converting the result into a unit array, traversing the Load names in the unit array, and judging whether the currently extracted Load names correspond to the fasteners or not by using a regular expression ' \\name: load_name;
traversing the fastener load name array, extracting load data corresponding to the load name in the load information according to the load name recorded in the fastener load name array, extracting the load data, converting the extracted load data into floating point numbers, and storing the floating point numbers in a matrix.
The process of writing the pretension data of the fastener into the new original file comprises the following steps:
finding the starting and ending positions of each finite element simulation analysis STEP by searching a character string STEP in the file content;
traversing all load names, searching a corresponding position in a finite element simulation analysis step, deleting an original value from the position, and inserting pretightening force data of a fastener into the position.
In the process of executing the simulation calculation, the operation control script submits only a single simulation calculation engineering file at a time, and in the calculation process of the simulation calculation engineering file, no submitting operation is performed, so that the submitting calculation has the advantage of preventing the problems of insufficient memory, computer locking and restarting and the like caused by simultaneously submitting a plurality of files.
Embodiment two:
an electronic device comprising a processor and a memory communicatively coupled to the processor for storing processor-executable instructions, characterized in that: the processor is configured to execute the automated finite element pretension data batch transfer and simulation calculation control method according to any one of the above embodiments.
Embodiment III:
a server, characterized by: the system comprises at least one processor and a memory in communication with the processor, wherein the memory stores instructions executable by the at least one processor, the instructions being executable by the processor to cause the at least one processor to perform the automated finite element pretension data batch transfer and simulation calculation control method according to any one of the embodiments.
Embodiment four:
a computer-readable storage medium storing a computer program, characterized in that: the method for controlling batch transfer and simulation calculation of automated finite element pretension data according to any one of the embodiments is implemented when the computer program is executed by a processor.
Those of ordinary skill in the art will appreciate that the elements and method steps of each example described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the elements and steps of each example have been described generally in terms of functionality in the foregoing description to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in this application, it should be understood that the disclosed methods and systems may be implemented in other ways. For example, the above-described division of units is merely a logical function division, and there may be another division manner when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted or not performed. The units may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The automatic finite element pretightening force data batch transmission and simulation calculation control method is characterized by comprising the following steps of:
the structure of the fastener is simulated in simulation analysis software;
outputting the simulation setting result as an original file;
the pretightening force data of the fasteners are read in batches and imported into simulation analysis software;
creating new original files in batches according to the user demands and the original files after simulation verification;
writing the pretightening force data imported into the simulation analysis software into a new original file;
and executing simulation calculation to obtain a simulation analysis result.
2. The automated finite element pretension data batch transfer and simulation calculation control method according to claim 1, wherein the method comprises the following steps:
according to the user demand and the original file after simulation verification, creating new original files in batches, and writing the pretightening force data imported into the simulation analysis software into the new original files, wherein the process comprises the following steps:
reading the set original file, and verifying the accuracy of simulation analysis on the original file;
using the verified original file as a template, and creating new original files in batches according to the requirements of users;
searching for a complete finite element simulation analysis step in the original file by adopting a regular expression according to the format specification of the simulation analysis software on the original file;
and traversing the pre-tightening force data of all the fasteners in each analysis step, and writing the pre-tightening force data of the fasteners into a new original file.
3. The automated finite element pretension data batch transfer and simulation calculation control method according to claim 1, wherein the method comprises the following steps: the process of executing simulation calculation to obtain simulation analysis results comprises the following steps:
reading the name of an engineering file to be submitted for simulation calculation and the thread number setting of a user, generating a corresponding control script in a working catalog of simulation analysis software, and operating the control script to submit a single simulation calculation engineering file;
detecting the execution state of simulation calculation of a current engineering file, and detecting whether a next simulation analysis engineering file to be submitted exists when the simulation calculation is finished;
if the project file name and the thread number setting of the user which need to be submitted to simulation calculation are read again, and subsequent operation is executed;
and otherwise, ending the simulation calculation and outputting a simulation analysis result.
4. The automated finite element pretension data batch transfer and simulation calculation control method according to claim 2, wherein the method comprises the following steps:
according to the format specification of the simulation analysis software to the original file, the process of searching the complete finite element simulation analysis step in the original file by adopting the regular expression comprises the following steps:
matching and storing step names of each finite element simulation analysis step in the original file by using a regular expression;
and extracting and storing the step content of each finite element simulation analysis step by inquiring the starting position and the ending position of each finite element simulation analysis step.
5. The automated finite element pretension data batch transfer and simulation calculation control method according to claim 2, wherein the method comprises the following steps:
the process of traversing the pretension data for all fasteners in each analysis step includes:
traversing the content of finite element simulation analysis steps obtained by using regular expression search, and screening out the load information of the fastener;
extracting a load name in the load information, judging whether the extracted load name corresponds to a fastener, and if so, adding the load name into a fastener load name array;
traversing the fastener load name array, and extracting corresponding load data in the load information according to the load names recorded in the fastener load name array.
6. The automated finite element pretension data batch transfer and simulation calculation control method according to claim 2, wherein the method comprises the following steps:
the process of writing the pretension data of the fastener into the new original file comprises the following steps:
searching the starting and stopping positions of each finite element simulation analysis step in a new original file;
and inserting the pretightening force data of the fastener into the corresponding position according to the starting and stopping positions of the finite element simulation analysis step in the new original file.
7. The automated finite element pretension data batch transfer and simulation calculation control method according to claim 3, wherein:
in the process of executing the simulation calculation, the operation control script submits only a single simulation calculation engineering file at a time, and in the calculation process of the simulation calculation engineering file, the submitting operation is not performed.
8. An electronic device comprising a processor and a memory communicatively coupled to the processor for storing processor-executable instructions, characterized in that: the processor is used for executing the automatic finite element pretightening force data batch transmission and simulation calculation control method according to any one of claims 1 to 7.
9. A server, characterized by: the system comprises at least one processor and a memory in communication with the processor, wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the processor to cause the at least one processor to perform the automated finite element pretension data batch transfer and simulation calculation control method according to any one of claims 1-7.
10. A computer-readable storage medium storing a computer program, characterized in that: the computer program, when executed by a processor, implements the automated finite element pretension data batch transfer and simulation calculation control method of any one of claims 1-7.
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