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隔膜抽气泵用三明治约束阻尼垫片减振特性分析

陈卫 王玮 刘志恩 郝同辉 柴方

陈卫,王玮,刘志恩, 等. 隔膜抽气泵用三明治约束阻尼垫片减振特性分析[J]. 机械科学与技术,2023,42(8):1171-1177 doi: 10.13433/j.cnki.1003-8728.20220047
引用本文: 陈卫,王玮,刘志恩, 等. 隔膜抽气泵用三明治约束阻尼垫片减振特性分析[J]. 机械科学与技术,2023,42(8):1171-1177 doi: 10.13433/j.cnki.1003-8728.20220047
CHEN Wei, WANG Wei, LIU Zhien, HAO Tonghui, CHAI Fang. Vibration Reduction Characteristics of Sandwich Constrained Damping Gasket for Diaphragm Air Pump[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(8): 1171-1177. doi: 10.13433/j.cnki.1003-8728.20220047
Citation: CHEN Wei, WANG Wei, LIU Zhien, HAO Tonghui, CHAI Fang. Vibration Reduction Characteristics of Sandwich Constrained Damping Gasket for Diaphragm Air Pump[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(8): 1171-1177. doi: 10.13433/j.cnki.1003-8728.20220047

隔膜抽气泵用三明治约束阻尼垫片减振特性分析

doi: 10.13433/j.cnki.1003-8728.20220047
基金项目: 国家自然科学基金面上项目(52175111)
详细信息
    作者简介:

    陈卫(1996−),硕士研究生,研究方向为隔膜抽气泵隔振研究,CWei@whut.edu.cn

    通讯作者:

    王玮,副教授,硕士生导师,wei.wang@whut.edu.cn

  • 中图分类号: TB535.1

Vibration Reduction Characteristics of Sandwich Constrained Damping Gasket for Diaphragm Air Pump

  • 摘要: 隔膜抽气泵在运转过程中会产生振动,使用阻尼垫片可以有效减小其振动。设计并制备了一种三明治约束阻尼垫片,其约束层使用铝合金,阻尼层采用黏弹性材料。通过时域和频域响应分析对比了三明治约束阻尼垫片安装前后隔膜泵的振动响应,发现该垫片能够以4 mm(或传统的1/10)厚度实现良好的减振效果,提高了系统的稳定性。与此同时,本文还从材料和结构的角度分析了三明治约束阻尼垫片的减振机理。
  • 图  1  传统的三明治约束阻尼结构

    Figure  1.  Traditional sandwich constrained damping structure

    图  2  三明治约束阻尼垫片

    Figure  2.  Sandwich restraint damping gasket

    图  3  强迫振动试验

    Figure  3.  Forced vibration test

    图  4  沥青板阻尼系数曲线

    Figure  4.  Damping coefficient curve of asphalt plate

    图  5  泵身加速度时域曲线

    Figure  5.  Time domain curve of pump body acceleration

    图  6  机脚加速度时域曲线

    Figure  6.  Time domain curve of foot acceleration

    图  7  泵身加速度频域曲线

    Figure  7.  Pump body acceleration frequency domain curve

    图  8  机脚加速度频域曲线

    Figure  8.  Frequency domain curve of foot acceleration

    表  1  25 Hz及其倍频下沥青板的阻尼系数

    Table  1.   Damping coefficient of asphalt plate at 25 Hz andits frequency doubling

    频率/Hz 样品1 样品2 样品3 平均值
    25 0.652 0.654 0.672 0.659
    50 0.661 0.646 0.676 0.661
    75 0.258 0.224 0.184 0.222
    100 0.622 0.614 0.655 0.630
    下载: 导出CSV

    表  2  泵身加速度振幅均值表

    Table  2.   Pump body acceleration amplitude mean table m/s2

    方向无垫片
    振幅
    三明治垫片橡胶悬置垫片
    振幅减振/%振幅减振/%
    x 4.532 1.734 61.74 5.643 −24.51
    y 1.522 0.845 44.48 0.899 40.93
    z 3.640 1.135 68.82 1.409 61.29
    下载: 导出CSV

    表  3  机脚加速度振幅均值表

    Table  3.   Foot acceleration amplitude mean table m/s2

    方向无垫片
    振幅
    三明治垫片橡胶悬置垫片
    振幅减振/%振幅减振/%
    x2.3850.56876.180.48679.62
    y2.4591.62633.881.17252.34
    z6.7161.26081.240.90686.51
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-06-24
  • 网络出版日期:  2023-09-13
  • 刊出日期:  2023-08-31

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