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Structural design method of 2.5D (two-and-a-half-dimensional) satin fabric

A fabric structure and satin weave technology, which is applied in the field of structural design of new 2.5D satin weave fabrics, and can solve the problems of cumbersome weft insertion process and other problems.

Inactive Publication Date: 2017-05-10
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When designing and weaving 2.5D satin weave fabrics, warp yarns often need to pass through several layers of warp and weft yarns to interweave with weft yarns, making the weaving weaving process more cumbersome than weaving 2.5D plain weave fabrics
In the 2.5D satin fabric with a small thickness, the warp and weft yarn interweaving structure causes the fiber volume content of the warp yarn in the 2.5D satin fabric per unit volume to be much smaller than that of the 2.5D plain weave fabric, so that the 2.5D satin weave fabric cannot be used as the basis of prefabricated parts The structure is used for composite materials that require high tensile properties in the warp direction

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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  • Structural design method of 2.5D (two-and-a-half-dimensional) satin fabric
  • Structural design method of 2.5D (two-and-a-half-dimensional) satin fabric
  • Structural design method of 2.5D (two-and-a-half-dimensional) satin fabric

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0047] 1. Determine the plane fabric structure. For the planar fabric with cycle number n=3, two identical weave structures or two different weave structures can be selected. The satin weave structure with cycle number n=3 adopts such as Figures 12 to 15 The 4 structures shown.

[0048] 2. Determine the weft yarn array of 2.5D class satin fabric. The number of rows of 2.5D weft yarn array is 2n=6, and the design M=4, then the weft yarn array diagram of 2.5D satin-like fabric with cycle number of 6 is as follows Figure 16 As shown, the weft yarns are arranged at intervals of 5:4.

[0049] 3. 2.5D satin fabric surface texture design. The plane satin weave structure is numbered with a 3×3 coordinate system, and the 2.5D satin-like surface texture structure is numbered with a 6×6 coordinate system.

[0050] (1) Design 2.5D satin-like fabric surface texture structure for two identical plane satin weave structures.

[0051] use Figure 17 (a) and (b) coordinate system pair ...

Embodiment 2

[0061] Example 2

[0062] Example 1 is supplemented. It mainly explains the design of the surface texture structure diagram of 2.5D satin-like fabrics by increasing the number of cycles.

[0063] The specific content is as follows:

[0064] 1. Determine the plane fabric structure. Choose a flat fabric with a cycle number n=4, choose two different weave structures, and determine the structure used is as follows: Figure 30 and Figure 31 shown.

[0065] 2. Determine the weft yarn array of 2.5D class satin fabric. The number of rows of 2.5D weft yarn array is 2n=8, and the design M=4, then the weft yarn array diagram of 2.5D satin weave fabric with cycle number of 8 is as follows Figure 32 As shown, the weft yarns are arranged at intervals of 5:4.

[0066] 3. 2.5D satin fabric surface texture design. The plane satin weave structure is numbered with a 4×4 coordinate system, and the 2.5D satin-like surface texture structure is numbered with an 8×8 coordinate system.

[0...

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

2.5D Satin refers to a novel 2.5D satin structure. 2.5D Satin fabric may be provided with increased volume fraction of warp fibers and reduced interweave layers of warps and wefts, and has good warp-wise and weft-wise flexural deformation capacities. The 2.5D stain fabric structure is evolved from 2.5D satin fabric and is formed by sequentially inlaying layer by layer, two simple flat fabrics that are structurally deformed. The structural design includes the main steps of (1), determining two flat fabric structures; (2), designing a weft array; (3), designing surface lines of the 2.5D satin fabric; (4) designing warp-weft interweave structure of the 2.5D satin fabric. By changing the flat fabric structure, the surface lines of the 2.5D satin fabric and the warp-weft interweave structure, it is possible to design various different 2.5D satin fabric structures, and it is possible to provide basic structures for functional, bionic and special-purpose composite net-near preform fabric.

Description

technical field [0001] The invention relates to a structural design method of a novel 2.5D satin weave fabric, belonging to the technical field of three-dimensional fabric weaving. Background technique [0002] Traditional fabrics are interwoven with two systems of yarns. The warp yarns are arranged along the length of the fabric, and the weft yarns are arranged along the width of the fabric. The thickness of the fabric is generally thin, so it is regarded as a two-dimensional fabric. Two-dimensional fabrics woven with high-performance fibers such as glass fibers, quartz fibers, aramid fibers, and carbon fibers can be used to produce laminated composite materials with high specific strength, high specific modulus, and light weight through the lay-up process. The biggest disadvantage of two-dimensional fabric composites in use is the weak performance in the thickness direction. When subjected to large bending stress and shear stress, it is easy to cause delamination due to we...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D03D25/00
Inventor 孙颖刘俊领容治军唐梦云陈利
Owner TIANJIN POLYTECHNIC UNIV