Analysis of mechanical properties of warp-knitted wire mesh based on finite element method

Abstract

The invention provides analysis of mechanical properties of warp-knitted wire mesh based on the finite element method. The method comprises following steps: 1) determining data point 3D coordinates according to a coil structure of a minimal repetitive structure of warp-knitted wire mesh; 2) determining 3D coordinates of data points of the whole warp-knitted wire mesh according to the topology relationship among the minimal repetitive structure; 3) using the 3D coordinates of the data points of the whole warp-knitted wire mesh as key point coordinates of finite element modeling to build finite element models; 4) applying contact constraint based on the finite element models of the whole warp-knitted wire mesh; 5) applying loads and boundary constraint on the whole warp-knitted wire mesh to realize statics analysis. The invention realizes mechanical analysis of warp-knitted wire mesh based on finite element method and provides theoretical basis for the development of wire mesh and provides reference for the shape-finding analysis of cable net and screen laying process in the future.

Description

technical field [0001] The invention belongs to the technical field of finite element simulation, and in particular relates to an analysis of the mechanical properties of warp-knitted wire mesh based on the finite element method. Background technique [0002] The flexible mesh fabric woven by metal wires is the key material for the preparation of metal mesh antennas. Warp-knitted flexible wire mesh is a warp-knitted flexible mesh material produced by ultra-fine wire and warp-knitting technology. It has the characteristics of light weight, certain ductility in both vertical and horizontal directions, and mesh size can be designed. The wire mesh is laid on the cable net, and the rocket is kept folded and folded during launch; after the satellite enters the orbit, the wire mesh is required to unfold and enter the working state. Furthermore, the performance of the metal wire mesh determines the communication performance of the metal mesh antenna of the communication satellite. ...

AI Technical Summary

Problems solved by technology

However, generally speaking, the materials used for wire mesh are expensive, so the method of guiding wire mesh weaving through experiments has too much economic cost and low work efficiency.

Images