吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (02): 340-345.

• 论文 • 上一篇    下一篇

超声驻波悬浮能力特性

焦晓阳, 刘建芳, 刘晓论, 孙旭光   

  1. 吉林大学 机械科学与工程学院, 长春 130022
  • 收稿日期:2012-03-26 出版日期:2013-03-01 发布日期:2013-03-01
  • 通讯作者: 刘建芳(1975-),男,副教授,博士.研究方向:压电精密/超精密驱动.E-mail:jfliu@jlu.edu.cn E-mail:jfliu@jlu.edu.cn
  • 作者简介:焦晓阳(1985-),男,博士研究生.研究方向:压电精密/超精密驱动.E-mail:jiaoxy10@mails.jlu.edu.cn
  • 基金资助:

    国家自然科学基金项目(51075181).

Ultrasonic standing wave levitation ability

JIAO Xiao-yang, LIU Jian-fang, LIU Xiao-lun, SUN Xu-guang   

  1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China
  • Received:2012-03-26 Online:2013-03-01 Published:2013-03-01

摘要: 为了提高超声驻波悬浮能力和悬浮的稳定性,提出了辐射端和反射端均为凹球面形状的结构。通过ANSYS仿真分析超声驻波产生的过程,得到不同凹球面半径下驻波声场的声压分布和最大声压值,确定最优的凹球面半径值。用Matlab仿真的方法对驻波悬浮位置进行了预测。根据优化的结果,加工制作了超声驻波悬浮装置,并对物体进行了悬浮实验,悬浮位置与仿真分析得到的结果一致。该装置在辐射端与反射端间距为2个波长的情况下,同时在3个波节处悬浮了3个直径为3 mm的钢球,驻波悬浮能力和悬浮的稳定性得到了较大幅度的提升。

关键词: 机械设计, 驻波悬浮, ANSYS仿真, 优化设计, 悬浮力

Abstract: To improve the levitation ability and its stability of the ultrasonic standing wave device, a device with concave spheres as radiating and reflecting surfaces was put forward. The generation process of the ultrasonic standing wave was simulated by software ANSYS and the distributions of the acoustic pressure and its maximums were found under different concave spheres of radiating and reflecting surfaces. The standing wave levitating positions were predicted by the Matlab simulation method. An ultrasonic standing wave levitation device was prototyped according to the optimized results, and several particles were levitated in the device. The measured levitation positions were in accordance with the simulated ones. 3 steel balls with diameter 3 mm were levitated in 3 wave nodes simultaneously when the distance between the radiating surface and the reflecting surface is double of the wavelength, showing that the levitating ability and stability enhanced significantly.

Key words: mechanical design, standing wave levitation, ANSYS simulation, optimation design, radiating force

中图分类号: 

  • TH122
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