Satellite plate and shell structure-based finite element automatic modeling method

A technology of plate and shell structure and modeling method, which is applied in the field of aerospace, can solve the problems of low modeling efficiency, low level of knowledge integration and automation, irregular modeling process, etc., to reduce energy, improve product design performance, shorten The effect of the R&D cycle

Inactive Publication Date: 2017-08-18
BEIHANG UNIV
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defects of low modeling efficiency, non-standard modeling process, low level of knowledge integration and automa

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  • Satellite plate and shell structure-based finite element automatic modeling method
  • Satellite plate and shell structure-based finite element automatic modeling method
  • Satellite plate and shell structure-based finite element automatic modeling method

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Embodiment Construction

[0038] A finite element automatic modeling method based on the satellite plate and shell structure of the present invention will be described in detail below in conjunction with the embodiments and drawings.

[0039] Such as figure 1 As shown, the present invention provides a finite element automatic modeling method based on the satellite shell structure, which specifically includes the following steps:

[0040] (1) Model import;

[0041] The user first establishes the model mapping information file and puts it in the work path; then starts the Patran software, specifies the set work path and file name; finally enters the location and name of the 3D design model to be analyzed. After submitting these information, the system will automatically complete the model import work.

[0042] The automatic modeling system is aimed at the characteristics of the satellite shell structure, using the mainstream finite element modeling software MSC.Patran in the domestic aerospace field as...

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Abstract

The invention discloses a satellite plate and shell structure-based finite element automatic modeling method. For characteristics of a satellite plate and shell structure, a finite element automatic modeling system is developed by adopting PCL language programming through taking mainstream finite element modeling software MSC.Patran in the domestic aerospace field as a platform. The method comprises the following steps of (1) model importing; (2) model editing; (3) grid division; (4) material/unit attribute setting; (5) load/boundary/initial condition setting; and (6) submitting analysis and calculation. According to the method, knowledge integration of product structure design can be improved; the product structure analysis/optimization process can be standardized; the model research and development cycle can be shortened; and the model research and development cost can be reduced.

Description

technical field [0001] The invention relates to a finite element automatic modeling method, in particular to a finite element automatic modeling method based on a satellite plate shell structure, belonging to the technical field of aerospace. Background technique [0002] The design of spacecraft widely adopts finite element analysis technology to analyze the static and dynamic characteristics of the structure. The spacecraft finite element analysis process is generally divided into three steps: pre-processing, finite element calculation, and post-processing. At present, the finite element calculation and post-processing technology are well developed, but the finite element modeling technology with the automatic division of finite element mesh as the main feature is very weak. In the complete finite element analysis process, modeling takes up about 50% of the time , for analysts, finite element modeling requires not only multidisciplinary knowledge, but also knowledge and e...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/23
Inventor 张晓天刘涛何宁泊王睿青刘家欣
Owner BEIHANG UNIV
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