Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for rapidly generating plate-type satellite-structure node merging grids

A technology of satellite structure and common nodes, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve problems such as high skills, a lot of time, and tedious work

Inactive Publication Date: 2016-06-15
BEIHANG UNIV
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are generally dozens of structural plates in the satellite structure, it will require high skills, a large number of time and tedious work

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for rapidly generating plate-type satellite-structure node merging grids
  • Method for rapidly generating plate-type satellite-structure node merging grids
  • Method for rapidly generating plate-type satellite-structure node merging grids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, wherein the finite element software adopts MSC.SimXpert2012.

[0065] A method for quickly generating grids with common nodes of a plate-type satellite structure according to the present invention, see figure 1 As shown, it includes the following steps:

[0066] Step 1: Import the CAD 3D design model of the satellite structure into the MSC.SimXpert software in the parasolid neutral file format, and then use the midplane extraction function of the software to extract the midplane of all selected honeycomb structural panels; the midplane used in this step The menu of the surface extraction function is Geometry->Mid-Surface->Automatic in turn. In the pop-up user interface, select Constantthickness for the Bodytype option and select the DeleteSolid option, so that the original 3D solid model will be automatically deleted after the mid-surface is extracted; ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for rapidly generating plate-type satellite-structure node merging grids. The method includes the following steps that 1, middle surfaces of a satellite-structure geometric model introduced into finite element modeling software are extracted; 2, to-be-processed middle surface sets and the number N of elements of the middle surface sets are obtained; 3, related operation is carried out on all surface pairs (A, B); 4, all the surfaces are sutured; 5, the geometric model of the structure is divided into finite element grids. According to the method, the geometry obtained in the mode that the middle surfaces of the satellite-structure three-dimensional solid model are extracted can be automatically processed, gaps between the faces are eliminated, redundant parts are deleted, and the high-quality node-merging finite element grids can be divided through the finally-generated geometric model. A large amount of human-computer interaction operation is avoided, required time is short, universality is high, the application range is wide, and the quite-high practical engineering value is achieved.

Description

Technical field: [0001] The invention relates to a method for quickly generating a common-node grid of a plate-type satellite structure, and belongs to the technical field of spacecraft structure analysis. Background technique: [0002] At present, most satellite structures use honeycomb sandwich panels to bear and transmit mechanical loads, and provide installation support for instruments and equipment. In order to verify whether the design of the satellite structure meets the requirements, the finite element method is generally used in engineering to analyze its mechanical properties. The geometric model of the satellite structure is generally modeled by three-dimensional solids, but the plate and shell structural elements are generally used for mechanical simulation in finite element modeling. If the finite element mesh is divided after directly extracting the middle surface from the three-dimensional solid, the gap between the adjacent surfaces will cause the discontinu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/23
Inventor 赵军鹏刘腾达付志方王春洁
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com