气动折入边装置中纱线初始位置对折边效果的影响

doi:10.13475/j.fzxb.20210203109

纺织学报 ›› 2022, Vol. 43 ›› Issue (03): 168-175.doi: 10.13475/j.fzxb.20210203109

气动折入边装置中纱线初始位置对折边效果的影响

刘宜胜¹(), 周鑫磊¹, 刘丹丹²^,³

1.浙江理工大学机械与自动控制学院, 浙江杭州 310018
2.浙江大学生物医学工程与仪器科学学院, 浙江杭州 310027
3.浙江众合科技股份有限公司中央研究院, 浙江杭州 310051

收稿日期:2021-02-15 修回日期:2021-06-22 出版日期:2022-03-15 发布日期:2022-03-29
作者简介:刘宜胜(1979—),男,副教授,博士。主要研究方向为智能纺织装备。E-mail: lysleo@zstu.edu.cn。
基金资助:
浙江省自然科学基金项目(LY18E050018)

Effect of yarn's initial position on yarn tucked-in in pneumatic tucked-in selvedge apparatus

LIU Yisheng¹(), ZHOU Xinlei¹, LIU Dandan²^,³

1. School of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
2. College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang 310027, China
3. Academia Sinica, United Science & Technology Co., Ltd., Hangzhou, Zhejiang 310051, China

Received:2021-02-15 Revised:2021-06-22 Published:2022-03-15 Online:2022-03-29

摘要/Abstract

摘要：

为改进气动折入边装置的结构设计,提高纱线的折入效率和稳定性,采用数值模拟和实验相结合的方法,探究纱线初始位置对纱线折入的影响机制。基于单向流固弱耦合算法提出了适用于模拟纱线从斜吹到折入行为的数值模型,探究一端固定另一端自由的单根纱线在不同初始位置先后受斜吹和折入气流作用的运动规律。搭建可视化实验平台,通过高速摄像机记录纱线的运动行为。通过数值模拟结果和实验数据进行比较,验证了单向流固弱耦合算法的准确性。结果表明:纱线折入所需的时间和伸长量与其初始位置有关,折入效果与其初始纵坐标有关;不同初始位置的纱线均能在7.425 ms内完成折入。

关键词: 气动折入边装置, 斜吹气流, 纱线折入, 折入气流, 流固耦合, 数值模拟

Abstract:

In order to improve the structural design of the pneumatic tucked-in selvedge apparatus and increase the yarn tucked-in efficiency and stability, a combination of numerical simulation and experiment is used to explore the mechanism of the yarn's initial position on the yarn tucked-in. Based on the one-way weak fluid-structure interaction algorithm, a numerical model suitable for simulating the behavior of a yarn from oblique-blowing to tucked-in is proposed and the movement of a single yarn with one end fixed and the other free end in different initial positions being subjected to oblique-blowing and tucked-in sequence is explored. A visual experimental bench was built to record the movement of the yarn through a high-speed camera. By comparing the results of numerical simulation with experimental data, the accuracy of the one-way weak fluid-structure interaction algorithm is verified. The results show that: the time and the elongation of the yarn tucked-in are related to its initial position, and the tucked-in effect of the yarn is related to its initial ordinate. The yarns in different initial positions can all tucked-in within 7.425 ms.

Key words: pneumatic tucked-in selvedge apparatus, oblique-blowing, yarn tucked-in, folding-in airflow, fluid-structure interaction, numerical simulation

中图分类号:

TS183.92

刘宜胜, 周鑫磊, 刘丹丹. 气动折入边装置中纱线初始位置对折边效果的影响[J]. 纺织学报, 2022, 43(03): 168-175.

LIU Yisheng, ZHOU Xinlei, LIU Dandan. Effect of yarn's initial position on yarn tucked-in in pneumatic tucked-in selvedge apparatus[J]. Journal of Textile Research, 2022, 43(03): 168-175.

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组别	时间/ms	伸长量/mm	气动力/kN
A	0	0	3.57
	1	0.171	3.37
	2	0.375	1.44
	2.725	0.696	—
B	0	0	3.57
	1	0.107	3.23
	2	0.270	3.20
	3	0.462	2.60
	3.5	0.762	—
C	0	0	3.57
	1	0.014	3.52
	2	0.041	3.46
	3	0.087	3.41
	4	0.191	3.35
	5	0.364	3.17
	5.925	0.752	—
D	0	0	3.76
	1	0.103	3.30
	2	0.264	3.28
	3	0.452	2.62
	3.562 5	0.760	—
E	0	0	3.52
	1	0.109	3.14
	2	0.274	3.10
	3	0.468	2.53
	3.475	0.764	—

组别	时间/ms	伸长量/mm	气动力/kN
A	0	0	1.67
	0.5	0.201	1.60
	1	0.493	1.92
	1.5	1.037	—
	1.525	1.068	—
B	0	0	1.64
	0.5	0.158	1.64
	1	0.366	1.61
	1.5	0.834	—
	1.562 5	0.905	—
C	0	0	1.49
	0.5	0.154	1.05
	1	0.361	1.24
	1.5	0.754	—
D	0	0	1.61
	0.5	0.230	0.79
	1	0.419	—
	1.225	0.521	—
E	0	0	1.64
	0.5	0.153	1.65
	1	0.361	1.69
	1.5	0.722	2.25
	1.887 5	1.132	—

组别	数值模拟总时间/ms	数值模拟总伸长量/mm	实验总伸长量/mm	数值模拟总伸长比/%	实验总伸长比/%
A	4.25	1.764	1.86	17.64	18.6
B	5.062 5	1.665	1.77	16.65	17.7
C	7.425	1.506	1.62	15.06	16.2
D	4.787 5	1.281	1.38	12.81	13.8
E	5.362 5	1.896	2.00	18.96	20.0

气动折入边装置中纱线初始位置对折边效果的影响

Effect of yarn's initial position on yarn tucked-in in pneumatic tucked-in selvedge apparatus

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