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Structural temperature field simulation analysis method

A technology of simulation analysis and temperature field, applied in the field of simulation analysis, can solve the problems of high difficulty in using software, lack of clear and standardized simulation process, scattered analysis and calculation tools, etc., to reduce the frequency of data conversion and transmission, and reduce the possibility of human error performance and reduce the risk of error

Pending Publication Date: 2022-02-01
西安本根科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The structural temperature field is the general term for the temperature distribution of each structure in the object at each time, reflecting the distribution of temperature in the structure and time. The simulation of the temperature field of the external heat protection structure requires the use of 3D modeling software, CAE analysis software and some other auxiliary software. , the analysis and calculation tools used are relatively scattered, the integration level is low, the software is difficult to use, and it is difficult to achieve parameterization in modeling and simulation, resulting in low efficiency of analysis and calculation
In addition, due to the lack of a coupled modeling and simulation environment, data needs to be frequently converted and transferred between different software, which easily leads to human errors
In addition, there are problems that the simulation process is not clear and standardized, and the design and simulation results are difficult to trace

Method used

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  • Structural temperature field simulation analysis method

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Experimental program
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Effect test

Embodiment 1

[0069] Implement a visual interface:

[0070] The function of the visual interface is to provide a graphical user interface for the user to input the parameters of the external heat protection analysis, and save the input parameters to a file for subsequent module calls. The graphical user interface is written using C# object-oriented programming technology, and uses TextBox, DataGridView, and CheckBox controls to accept user input, allowing users to input the density, thermal conductivity, specific heat, thickness, length, diameter, grid size, and initial temperature of the outer heat-proof layer , heat transfer time, heat flow, enthalpy and other data, the above input parameters are saved as data files in xml format, and the files identify different data types through tags. The data files in xml format are used to drive Excel, Pro / E and finite element solver programs in the background to realize automatic operation.

Embodiment 2

[0072] Implement Excel template technology:

[0073] The function of the Excel template is to read the xml file generated by the previous module, import the read data into the corresponding input column of the Excel template file, use the calculation program encapsulated in the Excel template to update the result column in the Excel template, and write the result column The data in is exported and appended to the end of the xml file.

[0074] Open the xml file through the XElement object in the .net Framework, access the three parameters of heat transfer time, heat flow and enthalpy in the xml file through the corresponding tags; use the Excel template as a data source through the open database interconnection interface technology, in the form of a database Open, through the calculation program encapsulated in the Excel template, the carbonization thickness, ablation thickness, shell surface temperature, and outer heat-resistant surface temperature columns in the Excel templat...

Embodiment 3

[0077] Implement Pro / E modeling technology:

[0078] The function of Pro / E modeling is to read the thickness, length, diameter of the outer heat protection layer in xml and the carbonization thickness and ablation thickness parameters generated by the Excel template, and use the API interface of Pro / E parametric modeling to automatically generate different Geometry of the outer heat shield for the ablation procedure.

[0079] Open the xml file through the XElement object in the .net Framework, access the data of the thickness, length, diameter, carbonization thickness and ablation thickness of the outer heat protection layer in the xml file through the corresponding label, and add the carbonization thickness and ablation thickness to get the result The reduction of the thickness of the outer heat-proof layer caused by ablation is the ablation thickness; then subtract the ablation thickness at different times from the original thickness of the outer heat-proof layer to obtain t...

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Abstract

The invention discloses a structural temperature field simulation analysis method. The method comprises the following steps: step 1, establishing a visual interface; step 2, establishing a language template; step 3, modeling an image; and step 4, starting a finite element solver program. According to the method, full automation from establishment of a three-dimensional model to output of an analysis and calculation report is realized, so that an analysis program is more standard, the frequency of data conversion and transmission is reduced, the risk of errors is reduced, and the efficiency of analysis and calculation is improved.

Description

technical field [0001] The invention relates to the technical field of simulation analysis, in particular to a method for simulation analysis of a structural temperature field. Background technique [0002] Traditionally, the temperature field simulation of the outer heat shield is realized manually. The outer heat shield model is manually established through 3D modeling software, and then the model is imported into the CAE software for model mesh division and boundary loading, and the heat transfer calculation is started manually. After the calculation is completed, manually post-process the results and output the analysis report. [0003] The structural temperature field is the general term for the temperature distribution of each structure in the object at each time, reflecting the distribution of temperature in the structure and time. The simulation of the temperature field of the external heat protection structure requires the use of 3D modeling software, CAE analysis s...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F8/20G06F8/38G06F119/08
CPCG06F30/23G06F8/24G06F8/38G06F2119/08
Inventor 刘军洁杨建林
Owner 西安本根科技有限公司