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薄壁零件铣削的磁流变弹性体吸振器的理论分析及试验

杨清艳 LIWeihua

杨清艳, LIWeihua. 薄壁零件铣削的磁流变弹性体吸振器的理论分析及试验[J]. 机械科学与技术, 2022, 41(2): 263-269. doi: 10.13433/j.cnki.1003-8728.20200319
引用本文: 杨清艳, LIWeihua. 薄壁零件铣削的磁流变弹性体吸振器的理论分析及试验[J]. 机械科学与技术, 2022, 41(2): 263-269. doi: 10.13433/j.cnki.1003-8728.20200319
YANG Qingyan, LI Weihua. Theoretical Analysis and Experiment of Magneto Rheological Elastomer Vibration Absorber for Milling Thin-walled Workpiece[J]. Mechanical Science and Technology for Aerospace Engineering, 2022, 41(2): 263-269. doi: 10.13433/j.cnki.1003-8728.20200319
Citation: YANG Qingyan, LI Weihua. Theoretical Analysis and Experiment of Magneto Rheological Elastomer Vibration Absorber for Milling Thin-walled Workpiece[J]. Mechanical Science and Technology for Aerospace Engineering, 2022, 41(2): 263-269. doi: 10.13433/j.cnki.1003-8728.20200319

薄壁零件铣削的磁流变弹性体吸振器的理论分析及试验

doi: 10.13433/j.cnki.1003-8728.20200319
基金项目: 

安徽省高校基金重点项目 KJ2019A0796

安徽建筑大学启动基金项目 JZ192039

详细信息
    作者简介:

    杨清艳(1987-), 讲师, 博士研究生, 研究方向为数控加工技术, 机械振动研究, qingyanyang1987@163.com

  • 中图分类号: TH122

Theoretical Analysis and Experiment of Magneto Rheological Elastomer Vibration Absorber for Milling Thin-walled Workpiece

  • 摘要: 薄壁件由于刚性差,在铣削过程中难免会出现各种扰动,从而容易发生颤振,严重影响了加工零件的精度和表面质量。为了解决该问题,考虑到同种材料不同尺寸的工件,或者不同材料的工件其固有频率不同,提出了在加工过程采用变频率的磁流变吸振器(Magneto rheological elastomer (MRE) absorber)的方法。文中详细介绍了磁流变吸振器的设计过程,并对吸振器的在不同电流下的频率进行测试,分析了磁流变吸振器在铣削加工中使用性能,对比铣削系统的稳定性叶瓣图及抗干扰的能力。结果表明所设计的变频率磁流变吸振器对于防止切削颤振是可行的,并且可以通过改变通电电流将其应用于不同材料的工件,不同尺寸的工件。
  • 图  1  薄壁零件铣削颤振模型

    图  2  不同厚度的工件前6阶振动频率

    图  3  加磁流变吸振器后铣削薄壁零件的颤振模型

    图  4  磁流变吸振器的设计构思图

    图  5  MRE吸振器具体设计参数

    图  6  MRE吸振器的多切面磁通密度图

    图  7  MRE的制备过程

    图  8  MRE吸振器组装过程

    图  9  测试MRE吸振器传递曲线的试验平台

    图  10  试验结果

    图  11  铣削叶瓣图

    图  12  铣削系统对干扰的响应

    表  1  低碳钢工件频率与厚度关系

    厚度/mm 3 5 7 9
    1阶自由模态频率/Hz 98.958 164.76 230.37 295.73
    下载: 导出CSV

    表  2  MRE吸振器频率-电流关系

    电流/A 频率/Hz 电流/A 频率/Hz
    0.2 90.13 1.2 182.55
    0.4 98.19 1.4 226.85
    0.6 112.08 1.6 259.06
    0.8 130.2 1.8 299.33
    1.0 146.31
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-08-07
  • 刊出日期:  2022-02-25

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