东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (3): 405-408.DOI: -

• 论著 • 上一篇    下一篇

反共振点位于两共振点正中间的反共振机参数选择

刘劲涛;刘杰;李小号;柳洪义;   

  1. 东北大学机械工程与自动化学院;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-03-15 发布日期:2013-06-22
  • 通讯作者: Liu, J.-T.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50775029);;

Selection of parameters of an anti-resonant vibrator with anti-resonant point just at the midpoint between two resonant points

Liu, Jin-Tao (1); Liu, Jie (1); Li, Xiao-Hao (1); Liu, Hong-Yi (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-03-15 Published:2013-06-22
  • Contact: Liu, J.-T.
  • About author:-
  • Supported by:
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摘要： 针对反共振振动机上质体的振幅对激振频率和物料量波动比较敏感的问题,提出了一种能使反共振振动机振幅稳定的参数选择方法.这种方法的中心思想是把反共振点选在两共振点正中间,并且两共振点之间的距离要离得足够远.这时共振点附近的幅频响应曲线比较平坦,从而使上下质体的振幅稳定性基本上达到实用要求.在需要振幅精度比较高的场合,也只需小范围调节即可实现.最后通过计算机仿真证明了这种方法的正确性和可行性.

关键词: 反共振, 振动机械, 振幅稳定, 振幅控制

Abstract: A method of selecting the parameters enabling the anti-resonant vibrator's amplitude to be stabilized was proposed to solve the problem that the amplitude of the mass on the anti-resonant vibrator is highly sensitive to both resonance frequency and fluctuation of the material quantity charged on the vibrator. The basic concept of the method is to locate the anti-resonant point just at the midpoint between two resonant points and, what's more, the distance between the two points should be long enough. Then, the amplitude-frequency response curve will be comparatively flat, thus enabling the amplitudes of both upper and lower mass to be basically stable so as to meet the requirements in practice. And only a readjustment in small range is needed if high accuracy of amplitude is required to implement. Computer simulation verifies the correctness and applicability of the method proposed.

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