纺织学报 ›› 2021, Vol. 42 ›› Issue (02): 193-20.doi: 10.13475/j.fzxb.20200803708

• 机械与器材 • 上一篇    

基于轴向运动悬臂梁理论的无缝内衣机织针横向振动特性

戴宁1,2, 彭来湖1(), 胡旭东1, 钟垚森1, 戚栋明2   

  1. 1.浙江理工大学 浙江省现代纺织装备技术重点实验室, 浙江 杭州 310018
    2.浙江理工大学 纺织科学与工程学院(国际丝绸学院), 浙江 杭州 310018
  • 收稿日期:2020-08-07 修回日期:2020-11-04 出版日期:2021-02-15 发布日期:2021-02-23
  • 通讯作者: 彭来湖
  • 作者简介:戴宁(1991—),男,博士生。主要研究方向为针织装备控制技术。
  • 基金资助:
    国家重点研发计划资助项目(2017YFB1304000)

Transverse vibration characteristics of knitting needles in seamless underwear machines based on axial movement cantilever beam theory

DAI Ning1,2, PENG Laihu1(), HU Xudong1, ZHONG Yaosen1, QI Dongming2   

  1. 1. Key Laboratory of Modern Textile Machinery & Technology of Zhejiang Province, Zhejiang Sci-Tech University,Hangzhou, Zhejiang 310018, China
    2. College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
  • Received:2020-08-07 Revised:2020-11-04 Online:2021-02-15 Published:2021-02-23
  • Contact: PENG Laihu

RichHTML

10

PDF (PC)

90

摘要：

无缝内衣机织针轴向运动过程中的横向振动特性与编织机构性能密切相关,为解决织针轴向运动过程中横向振动的理论及仿真模型少、编织过程织针横向振动数据难测量等问题,通过将编织织针等效为轴向运动悬臂梁对其横向振动特性进行理论研究,并采用ANSYS仿真软件进行有限元计算,最后通过高速相机对编织织针的横向振动特性进行测试。实验结果显示:理论及仿真计算所得横向振动曲线及动态频率值一致,动态频率值最大偏差不超过3.84%;织针编织过程中存在横向振动,且所得频率值与理论及仿真计算结果一致,证明了理论及仿真建模的正确性。

关键词: 无缝内衣机, 织针, 轴向运动悬臂梁, 横向振动, ANSYS仿真软件, 高速相机

Abstract:

During the axial movement of the knitting needle in seamless underwear machines, the transverse vibration characteristics of the knitting needle are closely related to the performance of the knitting mechanism. However, there are few studies on the transverse vibration of knitting needles at this stage during the knitting process, hindering the improvement of stability of the seamless underwear machine in terms of vibration. In this paper, the vibration characteristics were theoretically studied with the knitting needle as an equivalence to an axially moving cantilever beam and the finite element calculation was carried out using ANSYS simulation software. The transverse vibration characteristics of the knitting needles were examined using a high-speed camera. The transverse vibration curve and dynamic frequency value calculated theoretically and by simulation demonstrates high level of resemblance with each other for the transverse vibration curve, and the maximum deviation of the dynamic frequency value is below 3.84%, The experimental results prove the existence of transverse vibration during the knitting process, and the frequency value obtained is consistent with the theoretical and simulation results, which implies the correctness of the theoretical and simulation modeling.

Key words: seamless underwear machine, knitting needle, axial movement cantilever beam, transverse vibration, ANSYS simulation software, high-speed camera

中图分类号: 

  • TS103.7

图1

无缝内衣机编织机构三维实体模型"

图2

织针轴向运动悬臂梁模型示意图"

图3

织针沿三角上升时的横向振动曲线"

图4

织针沿三角下降时的横向振动曲线"

图5

ANSYS仿真流程图"

图6

载荷施加特性及效果图"

图7

织针沿三角上升时的横向振动仿真曲线"

图8

织针沿三角下降时的横向振动仿真曲线"

表1

织针上升过程中的横向振动频率规律"

波峰位置 理论值/Hz 仿真值/Hz 相对偏差/%
1 496 482 2.82
2 481 470 2.29
3 466 456 2.15
4 450 441 2.00
5 434 419 3.46
6 417 401 3.84
7 401 388 3.24
8 384 370 3.65

表2

织针下降过程中横向振动频率规律"

波峰位置 理论值/Hz 仿真值/Hz 相对偏差/%
1 380 370 2.63
2 388 382 1.55
3 402 390 2.99
4 414 402 2.90
5 425 413 2.82
6 436 424 2.75
7 448 436 2.68
8 458 444 3.06
9 470 456 2.98
10 481 468 2.70
11 492 480 2.44
12 503 490 2.58

图9

测振平台和测振过程示意图"

图10

横向振动时域及频域特性"

[1] 丛洪莲, 张新杰, 王迪. 基于结构参数的纬编无缝塑身内衣设计模型[J]. 纺织学报, 2014,35(11):123-128.
CONG Honglian, ZHANG Xinjie, WANG Di. Model design of weft seamless underwear based on structure parameters[J]. Journal of Textile Research, 2014,35(11):123-128.
[2] 戴宁, 胡旭东, 彭来湖, 等. 无缝内衣机密度电动机的控制技术[J]. 纺织学报, 2020,41(6):161-167.
DAI Ning, HU Xudong, PENG Laihu, et al. Control technology for density motor used in seamless underwear machines[J]. Journal of Textile Research, 2020,41(6):161-167.
[3] 张华. 纬编针织机编织动力学分析及控制策略研究[D]. 杭州:浙江理工大学, 2013: 60-76.
ZHANG Hua. Dynamic analysis of knitting process and its control strategy study of weft knitting machine[D]. Hangzhou: Zhejiang Sci-Tech University, 2013: 60-76.
[4] 沈伟平. 横机编织系统建模及动力学研究[D]. 杭州:浙江理工大学, 2012: 40-48.
SHEN Weiping. Research on modeling and dynamics of knitting system of flat knitting machine[D]. Hangzhou: Zhejiang Sci-Tech University, 2012: 40-48.
[5] 徐英莲, 齐素梅. SM8-TOP2无缝内衣圆机织针的运动参数分析[J]. 纺织学报, 2011,32(2):58-63.
XU Yinglian, QI Sumei. Analyzing needle track of SM8-TOP2 seamless-wear circular knitting machine[J]. Journal of Textile Research, 2011,32(2):58-63.
[6] 吴晓光, 张弛, 朱里, 等. 磁悬浮式驱动织针的关键技术与试验模型[J]. 纺织学报, 2014,35(10):129-135.
WU Xiaoguang, ZHANG Chi, ZHU Li, et al. Key technologies of magnetic suspension driving knitting needles and experimental model[J]. Journal of Textile Research, 2014,35(10):129-135.
[7] 吴晓光, 孔令学, 朱里, 等. 磁悬浮式针织提花驱动方式理论研究与探讨[J]. 纺织学报, 2012,33(10):128-133.
WU Xiaoguang, KONG Lingxue, ZHU Li, et al. Theoretical research on propulsion mode of magnetic suspension needles for jacquard knitting[J]. Journal of Textile Research, 2012,33(10):128-133.
[8] 王亮, 陈怀海, 贺旭东, 等. 轴向运动悬臂梁横向振动的磁力控制[J]. 南京航空航天大学学报, 2010,42(5):568-573.
WANG Liang, CHEN Huaihai, HE Xudong, et al. Active vibration control of axially moving cantilever beam by magnetic force[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2010,42(5):568-573.
[9] 王亮. 轴向运动梁动力学及控制研究[D]. 南京:南京航空航天大学, 2012: 68-108.
WANG Liang. Study on the dynamics and control of axially moving beams[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2012: 68-108.
[10] 谭霞, 丁虎, 陈立群. 超临界轴向运动Timoshenko梁横向受迫振动[J]. 振动与冲击, 2017,36(22):1-5.
TAN Xia, DING Hu, CHEN Liqun. Transverse forced vibration of an axially moving Timoshenko beam at a supercritical speed[J]. Journal of Vibration and Shock, 2017,36(22):1-5.
[11] 黄肖华. 全自动扎口单面无缝内衣机控制系统[D]. 杭州:浙江理工大学, 2015: 6-20.
HUANG Xiaohua. Automatic control system of single side seamless underwear machine[D]. Hangzhou: Zhejiang Sci-Tech University, 2015: 6-20.
[12] 曹斌. 无缝针织内衣机成圈机构原理与工艺的研究与分析[D]. 杭州:浙江理工大学, 2011: 7-34.
CAO Bin. Research and analysis on the looping principle and technology of the seamless underwear knitting machine[D]. Hangzhou: Zhejiang Sci-Tech University, 2011: 7-34.
[1] 戴宁, 彭来湖, 胡旭东, 崔英, 钟垚森, 王越锋. 基于Euler-Bernoulli梁理论的无缝内衣机织针编织过程固有频率特性研究[J]. 纺织学报, 2020, 41(12): 144-150.
[2] 戴宁, 彭来湖, 胡旭东, 崔英, 钟垚森, 王越峰. 纬编针织机织针自由状态下固有频率测试方法[J]. 纺织学报, 2020, 41(11): 150-155.
[3] 朱世根, 杨宏贤, 白云峰, 丁浩, 朱巧莲. 长条状细薄带钩零件变形自动检测系统[J]. 纺织学报, 2020, 41(10): 158-163.
[4] 李冬冬, 张成俊, 左小艳, 张弛, 李红军, 周向阳. 混合磁悬浮织针驱动的永磁织针磁场分布规律[J]. 纺织学报, 2020, 41(09): 136-142.
[5] 戴宁, 胡旭东, 彭来湖, 钟垚森. 无缝内衣机密度电动机的控制技术[J]. 纺织学报, 2020, 41(06): 161-167.
[6] 张成俊, 游良风, 左小艳, 张弛, 朱里. 电脑横机织针的磁驱动设计与建模[J]. 纺织学报, 2019, 40(09): 180-185.
[7] 吴晓光 朱里 张驰 孔令学 万道玉. 零传动模式的高速轴向悬浮织针运动控制与试验分析[J]. 纺织学报, 2016, 37(4): 137-142.
[8] 彭来湖 万中魁 胡旭东 向忠 杨亮亮. 无缝内衣机分布式气阀组驱动控制单元设计[J]. 纺织学报, 2016, 37(10): 125-129.
[9] 高晓平 李友国 孙以泽 王晓清. 轴向运动纱线束的非线性横向振动特性[J]. 纺织学报, 2013, 34(12): 37-0.
[10] 徐艳华 袁新林. 玄武岩纤维机织针织复合织物增强复合材料的弯曲性能[J]. 纺织学报, 2013, 34(1): 36-39.
[11] 徐艳华, 袁新林. 机织针织复合织物与多层双轴向纬编织物拉伸性能对比[J]. 纺织学报, 2012, 33(6): 30-34.
[12] 吴晓光 孔令学 朱里 武玉琴 黄振 李爽. 磁悬浮式针织提花驱动方式理论研究与探讨[J]. 纺织学报, 2012, 33(10): 128-133.
[13] 徐艳华;袁新林;胡红. 玄武岩纤维机织针织复合结构增强复合材料的拉伸性能[J]. 纺织学报, 2011, 32(2): 48-52.
[14] 鲍正红;朱世根;丁浩;狄平. 回火工艺对织针弹性及硬度的影响[J]. 纺织学报, 2008, 29(4): 119-122.
[15] 陈海燕;朱世根;丁浩;季诚昌;沈剑;原一高;顾伟生. 基于ANSYS的织针淬火加热过程的温度场模拟[J]. 纺织学报, 2006, 27(4): 44-47.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
京ICP备14006648号　 京公网安备11010502044800号
版权所有 © 2021 《纺织学报》编辑部
地址： 北京市朝阳区延静里中街3号主楼6层《纺织学报》杂志社　邮政编码：100025　
电话：010-65017711,65917740　传真：010-65016539　Email:fangzhixuebao@vip.126.com
本系统由北京玛格泰克科技发展有限公司设计开发