纺织学报 ›› 2013, Vol. 34 ›› Issue (1): 122-127.

• 机械与器材 • 上一篇    下一篇

基于UG NX/Motion的电脑横机成圈机构建模与仿真

方园,夏凡甜   

  1. 浙江理工大学材料与纺织学院
  • 收稿日期:2011-12-05 修回日期:2012-07-12 出版日期:2013-01-15 发布日期:2013-01-07
  • 通讯作者: 方园 E-mail:fyuan123@126.com
  • 基金资助:

    浙江省科技厅重大科技项目

  Modeling and simulation of loop forming mechanism of computerized flat knitting machine based on UG NX/Motion

  • Received:2011-12-05 Revised:2012-07-12 Online:2013-01-15 Published:2013-01-07

摘要: 针对国产电脑横机与国外电脑横机相比技术差距较为明显,缺乏系统地理论分析等问题,对电脑横机成圈机件进行建模研究,以提升电脑横机的整机性能。基于UG NX/Motion建立了成圈机件的瞬态力学模型,分析了三角对导针片垂直方向上冲击力的变化;结合UG NX分析软件对成圈机构进行了运动仿真,分析成圈过程中导针片的位移、速度以及加速度的变化情况,从而提高了织针的运动稳定性。并通过实验研究分析成圈过程中导针片的位移、速度以及加速度变化,测试分析结果表明有限元分析的结果与实际运动情况相一致,验证了成圈机件的瞬态动力学分析的正确性,为电脑横机的设计与优化提供了理论依据。

关键词: 电脑横机, 成圈机构, 瞬态动力学, UG NX/Motion, 运动仿真

Abstract: According to the issues of the obviously technological gap between the domestic and foreign computerized flat knitting machine as well as the lack of systematically theoretical analysis, researching on the knitting elements of computerized flat knitting machine tends to improve the complete machines’ properties of computerized flat knitting machine. The transient mechanic model for knitting elements was established to investigate the variation of the impact force in vertical direction between the cam and the select jack based on UG NX/Motion. The variation of the select jack’s displacement, velocity, acceleration and the stability for the needles’ moving has been confirmed by the simulation of knitting process based on the software UG NX. Furthermore, the variation of the select jack’s displacement, velocity, acceleration has been confirmed by experimental measurement during the knitting process. The data of the experimental results were in accordance with the UG NX/Motion which confirmed the correctness of the transient dynamics’ analysis for knitting elements. It provided a theoretic basis for the design of computerized flat knitting machines.

Key words: computerized flat knitting machine, loop forming mechanism, transient dynamics, UG NX/Motion, movenent simulation

中图分类号: 

  • TS184.1
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