Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for controlling grid division density by modal interpolation influence line

A grid division and grid control technology, applied in special data processing applications, instruments, electrical digital data processing, etc.

Active Publication Date: 2016-02-17
CHINA ELECTRONICS ENG DESIGN INST
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the contradiction between grid division density and calculation amount in the engineering finite element calculation process, and can quickly determine the best model grid division density

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 controlling grid division density by modal interpolation influence line
  • Method for controlling grid division density by modal interpolation influence line
  • Method for controlling grid division density by modal interpolation influence line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be described in further detail below with reference to specific embodiments, but it is not intended to limit the present invention.

[0022] The principle of the invention is to use the modal calculation results corresponding to the designed upper and lower mesh division density values ​​to carry out Lagrangian three-node interpolation calculation, and to determine a reasonable and effective finite element model network according to the interpolation information and the convergence index. The density value of the grid division is used to ensure that the accuracy and calculation amount of the finite element model are in a relatively balanced acceptable range, and the reliability and efficiency of engineering calculation and design are ensured.

[0023] Specifically, a method for modal interpolation influence line control grid division density provided by the present invention includes the following steps:

[0024] Step 1: Establish a finite ele...

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 controlling grid division density by a modal interpolation influence line. Aiming at a reasonable grid division problem of finite element calculation with a large-size complicated structure, the invention provides that the grid division is controlled by adopting the modal influence line; by setting a lower limiting value and an upper limiting value of the grid division density, the basic frequencies, corresponding to the upper limiting value and the lower limiting value, in a modal calculation result are extracted; a plurality of times of grid density division interpolation can be carried out by using a quadratic multi-phase type interpolation function, and the reason and effective grid division density is determined through an interpolation result. With the adoption of the module, the contradiction between the grid division density and the calculation quantity in an engineering finite element calculation process can be effectively solved, and the optimal model grid division density can be rapidly determined.

Description

technical field [0001] The invention specifically relates to a method for controlling grid division density by modal interpolation influence line. Background technique [0002] The quality and quantity of meshing are very important in the process of determining the design scheme of the anti-vibration abutment using the finite element numerical analysis method. In the process of numerical modeling, the meshing density is an important factor to ensure the accuracy of FE model analysis (finite element model analysis). However, in the actual modeling process, there is a contradiction between the meshing density and the amount of calculation. When the meshing density is refined, the amount of calculation is bound to be large; when the amount of calculation is limited, the obtained meshing density cannot guarantee the quality and accuracy of meshing. SUMMARY OF THE INVENTION [0003] The invention aims to solve the contradiction between the mesh division density and the calcula...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 胡明祎娄宇黄伟邢云林秦敬伟刘海宏黄健赵淦申颖洁刘立超
Owner CHINA ELECTRONICS ENG DESIGN INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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