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

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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

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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

CLC Number: 

  • TH122
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