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Heat transfer simulation method based on fabric geometric structure

A simulation method and geometric structure technology, applied in the field of computer simulation, can solve problems such as insufficient fidelity, low accuracy of fabric simulation research, and low precision of fabric simulation

Inactive Publication Date: 2015-07-29
TIANJIN POLYTECHNIC UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose is to solve a series of technical problems such as low accuracy and low fidelity of fabric simulation, which lead to low accuracy in fabric simulation research.

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
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  • Heat transfer simulation method based on fabric geometric structure
  • Heat transfer simulation method based on fabric geometric structure
  • Heat transfer simulation method based on fabric geometric structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0038] Example 2 is the geometric structure simulation and heat transfer analysis of glass fiber 3 / 1 twill fabric. Proceed as follows:

[0039] Step 1: Use 280tex glass fiber to weave a 3 / 1 twill fabric with a density of 100*120.

[0040] Step 2: According to the GB / T 7689.1-2013 standard, use the YG141L digital fabric thickness meter to obtain the fabric thickness; obtain the thermal conductivity and specific heat capacity of the fabric with the HOT DISK 2500S thermal constant analyzer; obtain the width, height and spacing of the yarn through SEM ; Fiber diameters were obtained using optical microscopy. The test results are shown in Table 2.

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
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Abstract

The invention discloses a heat transfer simulation method based on the fabric geometric structure. According to the heat transfer simulation method based on the fabric geometric structure, a fabric three-dimensional simulation model is built according to fabric parameters, the fabric model is simulated with a finite element method, and the characteristic that the temperature in fabric in the heated state changes along with time is simulated. Due to the heat transfer simulation method based on the fabric geometric structure, fabric transfer simulation becomes simple, and in the simulation process, the changes of the temperature in the fabric along with time can be obtained just by inputting the characteristics of the fabric material and a simulated environment. Compared with the existing simulation methods, the heat transfer simulation method based on the fabric geometric structure is on the basis of the real structure of the fabric, the defect that fabric is simplified to a homogeneous panel is overcome, and under the same conditions, the simulation result coincides with an experiment result. A fabric heat transfer image simulated with the method is very real, and the method is simple. Through the heat transfer simulation method based on the fabric geometric structure, the real structure of the fabric can be shown.

Description

technical field [0001] The invention relates to computer simulation technology, in particular to a heat transfer simulation method based on fabric geometric structure. Background technique [0002] In the past, the research on material properties in the field of material research was mainly obtained through experimental tests, and the obtained data were comprehensive and reliable, which could truly reflect the properties of materials. However, this method of purely using experimental testing has many shortcomings, such as the need to consume a large amount of experimental materials, and it takes a lot of time to conduct a large number of repeated experiments. Some tests will produce toxic substances and harmful gases that will affect the environment. With the development of computer technology and the development of finite element analysis software, it has become a new hot spot to use computer to build models and conduct analysis and research. This research method saves tim...

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
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Application Information

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IPC IPC(8): G06F17/50
Inventor 张玉双郑振荣赵晓明王红梅
Owner TIANJIN POLYTECHNIC UNIV
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