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Quick extraction method suitable to obtain calculation results of large amounts of nodes of PATRAN

A technology for calculating results and extracting methods, applied in the direction of calculation, special data processing applications, instruments, etc., can solve the problems of lengthening product development cycle, reducing the efficiency of finite element simulation analysis, and delaying task progress, and achieving efficient results extraction methods, Time-consuming and resource-saving effect

Active Publication Date: 2018-01-12
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

When faced with the extraction of calculation results from a large number of discontinuous nodes, using the RESULTS menu of MSC PATRAN requires mechanical and repeated operations to collect the required results, which greatly reduces the efficiency of finite element simulation analysis and lengthens the The cycle of product development is shortened, resulting in the delay of the overall task progress

Method used

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  • Quick extraction method suitable to obtain calculation results of large amounts of nodes of PATRAN

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Embodiment Construction

[0013] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0014] Such as figure 1 Shown, the present invention is suitable for obtaining the rapid extraction method of a large number of node computing results of PATRAN (processor) and comprises the following steps:

[0015] Step 1: Establish the finite element model, submit the calculation analysis, and read the calculation results;

[0016] Among them, the finite element mesh model is established, the corresponding material parameters are assigned, the name of the calculation working condition is set in the LOAD CASES module in MSC patran, and it is placed in the current (make current) state, and then the current working condition is set under LOADs / BCs Boundary conditions, and finally set the required analysis and calculation in Analysis to generate a bdf file.

[0017] Among them, the gene...

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Abstract

The invention discloses a quick extraction method suitable to obtain calculation results of large amounts of nodes of PATRAN. The method comprises the following steps of 1, building a finite element model, performing submitting, calculation and analysis, and reading a calculation result; 2, selecting node numbers which need to be subjected to calculation result extraction; and 3, editing a .ses program file, setting the node numbers, a storage path and a naming formation file, and enabling an extracted calculation item to be consistent with an xdb file of MSC PATRAN. The efficient result extraction method can be provided.

Description

technical field [0001] The invention relates to an extraction method, in particular to a fast extraction method suitable for obtaining calculation results of a large number of PATRAN nodes. Background technique [0002] In the aerospace field, MSC PATRAN / Nastran is commonly used to establish the finite element model of the satellite structure and perform analysis and calculation. In the extraction of analysis results, the required analysis results such as displacement and acceleration are often extracted by manually inputting the node ID number, or by mouse frame selection of units and nodes. The format and sequence of the obtained REPORT result files are in the default format, and data integration needs to be done by copying and pasting. When faced with the extraction of calculation results from a large number of discontinuous nodes, using the RESULTS menu of MSC PATRAN requires mechanical and repeated operations to collect the required results, which greatly reduces the e...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 杜冬周静陶炯鸣孔祥森赵川李昊周星驰
Owner SHANGHAI SATELLITE ENG INST
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