六角形编织物的微观结构模拟

doi:10.13475/j.fzxb.20200809508

纺织学报 ›› 2021, Vol. 42 ›› Issue (04): 85-92.doi: 10.13475/j.fzxb.20200809508

六角形编织物的微观结构模拟

杨鑫¹^,², 邵慧奇¹^,³, 蒋金华¹^,²(), 陈南梁¹^,²

1.东华大学产业用纺织品教育部工程研究中心, 上海 201620
2.东华大学纺织学院, 上海 210620
3.东华大学纺织科创中心, 上海 210620

收稿日期:2020-08-26 修回日期:2021-01-15 出版日期:2021-04-15 发布日期:2021-04-20
通讯作者: 蒋金华
作者简介:杨鑫(1995—),男,硕士生。主要研究方向为三维编织复合材料。
基金资助:
国家重点研发计划资助项目(2016YFB0303300);国家自然科学基金项目(11472077);中央高校基本科研业务费专项资金资助项目(2232020A-05);中央高校基本科研业务费专项资金资助项目(2232020G-06)

Meso-structure simulation of hexagonal braiding preforms

YANG Xin¹^,², SHAO Huiqi¹^,³, JIANG Jinhua¹^,²(), CHEN Nanliang¹^,²

1. Engineering Research Center of Technical Textile, Ministry of Education, Donghua University, Shanghai 201620, China
2. College of Textiles, Donghua University, Shanghai 210620, China
3. Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China

Received:2020-08-26 Revised:2021-01-15 Online:2021-04-15 Published:2021-04-20
Contact: JIANG Jinhua

摘要/Abstract

摘要：

为研究第2代六角形编织物的复杂结构并预测其性能,利用MatLab软件设计出一套可直接模拟六角形编织物细观结构的算法,得到了可很好地反映编织结构的模型。根据第2代六角形编织角轮和转换装置的运动规律,推演携纱器的运行路径,编写出模拟携纱器行走路线的代码程序。通过编织轴向的路程计算,获得纱线运动的空间路径,并利用B样条法对空间路径进行优化,最后运用Solidtube函数进行实体化模拟,实现了细观结构的可视化。本文算法基于最基本的角轮与转换装置的关系编写,对于六角形编织物结构模拟具有普适性;同时进行了不同六角形预制件的编织实验发现,实验成品与模拟编织结构吻合度高,验证了算法的准确性。

关键词: 六角形编织, 角轮, 微观结构模型, 编织算法, 复合材料预型件

Abstract:

In order to study the complex structure of second generation of hexagonal braiding fabrics and predict its performance, an algorithm for simulating meso-structure was created for simulation using MatLab, which led to the establishment of models reflecting clearly the meso-structure. On the basis of the motion pattern of the second generation machine's horn gear, motion path of carriers was deduced which was used for coding. The trajectory of the yarn carrier were optimized through the use of B-spline, and Solidtube functions were used to carry out the simulation, leading to the visualization of the micro-structure. The algorithm in this text was designed on the basis of the most fundamental relation between horn gears and switch, thus it is universal to simulate hexagonal braiding structure, and the structure created by the algorithm to simulate also provided a better tool for unit cell division in finite element method. The braiding experiments of different hexagonal preforms were carried out. The results show that appearance of the simulated braiding structure resembles the experimental products, which verifies the accuracy of the algorithm.

Key words: hexagonal braiding, horn gear, meso-structure model, braiding algorithm, composite preform

中图分类号:

TB332

杨鑫, 邵慧奇, 蒋金华, 陈南梁. 六角形编织物的微观结构模拟[J]. 纺织学报, 2021, 42(04): 85-92.

YANG Xin, SHAO Huiqi, JIANG Jinhua, CHEN Nanliang. Meso-structure simulation of hexagonal braiding preforms[J]. Journal of Textile Research, 2021, 42(04): 85-92.

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六角形编织物的微观结构模拟

Meso-structure simulation of hexagonal braiding preforms

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