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首页> 外文期刊>The Journal of the Textile Institute >Three-Dimensional simulation of metallic two-bar warp-knitted mesh based on loop structure geometry
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Three-Dimensional simulation of metallic two-bar warp-knitted mesh based on loop structure geometry

机译：基于环结构几何的金属两根经编网的三维模拟

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摘要

In order to predict the appearance and porosity of the metallic two-bar warp-knitted mesh, a three-dimensional (3-D) loop model was developed by some key points on loop, and then based on the model meso structure of mesh was simulated. Firstly, a two-dimensional (2-D) loop geometry in metallic warp-knitted mesh was established. The loop geometry was described on the basis of the yarn property effect to loop sharp. And the underlap geometry was taken as an arc. To describe the 2-D loop geometry, coordinates of key points called databases were established. Then databases in 2-D loop geometry were relocated through the loop offset by stress distribution. Secondly, the 3-D loop geometry was ensured according to the yarn diameter, the angle between loop plane and fabric plane as well as the type of loops (front bar loop or back bar loop), etc. Finally, the coordinates of databases were imported to TexGen software to simulate the 3-D meso structures of the metallic mesh. By comparing simulation images with actual fabrics, the 3-D loop geometry model was fitted well for metallic two-bar warp-knitted mesh. And the simulation results demonstrated that the predicted porosity of mesh was in good agreement with experimental values.
机译：为了预测金属两根经编网的外观和孔隙率，通过在环上的一些关键点建立了三维（3-D）环模型，然后基于该模型对网孔进行细观结构分析。模拟。首先，建立了金属经编网格中的二维（2-D）环几何。线圈的几何形状是根据纱线特性对线圈的尖锐程度进行描述的。重叠的几何形状取为弧形。为了描述二维回路的几何形状，建立了称为数据库的关键点的坐标。然后将二维回路几何中的数据库通过应力分布通过回路偏移进行重新定位。其次，根据纱线直径，线圈平面与织物平面之间的角度以及线圈的类型（前杆线圈或后杆线圈）等，确保3-D线圈的几何形状。最后，数据库的坐标为导入到TexGen软件中以模拟金属网格的3-D介观结构。通过将模拟图像与实际织物进行比较，可以很好地将3-D回路几何模型拟合为金属两根经编网眼。仿真结果表明，预测的孔隙度与实验值吻合良好。

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