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Method for automatically converting data between dynamics analysis software and finite element analysis software

A kinetic analysis and analysis software technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem that data cannot be automatically converted, and achieve the effect of reliable implementation means

Inactive Publication Date: 2010-06-09
CHINA AGRI UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problem that the data cannot be automatically converted between the dynamic analysis software and the finite element analysis software in the prior art, resulting in the inability to perform accurate flexible dynamic analysis and stress-strain analysis of the mechanical system, and proposes a A method for automatic data conversion between dynamic analysis software and finite element analysis software that solves the technical problem of automatic data conversion

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  • Method for automatically converting data between dynamics analysis software and finite element analysis software
  • Method for automatically converting data between dynamics analysis software and finite element analysis software

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[0021] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] The technical scheme of the present invention provides a method for data conversion between finite element analysis software and dynamic analysis software. This embodiment takes finite element analysis software ANSYS as the core, figure 1 is its main flow chart, including the following steps:

[0023] (1) First start the finite element analysis software ANSYS directly;

[0024] (2) Utilize the finite element analysis software to read the APDL macro file, the content of the APDL macro file includes: setting up the model of the flexible body part, defining element properties, dividing the grid, defining external nodes, and exporting the required information of the dynamic analysis software The modal neutral file of the flexible body, the modal neutral file contains information such as the mass, center of mass, moment of inertia, ...

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Abstract

The invention discloses a method for automatically converting data between dynamics analysis software and finite element analysis software, comprising the following steps of: starting the finite element analysis software to perform model flexiblization and outputting a modal neutral file (MNF); starting the dynamics analysis software, loading a virtual prototype model, reading the MNF, performing kinematics and dynamics analysis and outputting a load file; applying a load in the load file to a flexible body, performing stress and strain analysis on the flexible body and outputting stress and strain data; and circularly performing the steps and outputting an optimal operating condition and the stress and strain data. The method for automatically converting data can really integrate the powerful finite element function of the finite element analysis software and the powerful dynamics analysis function of the dynamics analysis software for combined application and provide an automatic, simple, convenient, high-efficiency and reliable realization means for achieving the mechanical property analysis and the operating condition analysis of a mechanical system.

Description

technical field [0001] The invention relates to the field of mechanical design, in particular to a method for automatic data conversion between dynamic analysis and finite element analysis software. Background technique [0002] At present, there are many digital engineering design software, each of which is applicable to different professional technical fields, even if they belong to the same field, they have their own characteristics and advantages. The dynamic analysis software can use the computer to create a virtual prototype to simulate the entire motion process of the complex mechanical system, and can analyze the model's force condition and motion state; the finite element analysis software has a powerful finite element analysis function, which can analyze the stress and strain distribution inside the component Wait. At present, the finite element analysis function of dynamic analysis software is limited, and the elastic characteristics of parts can be considered wh...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 汤修映肖丹刘川刘岭毛恩荣宋正河娄秀华
Owner CHINA AGRI UNIV
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