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Title: Use of near field acoustic levitation sliding contact
Authors: Stolarski, TA
Woolliscroft, CI
Keywords: Acoustic levitation
Linear sliding contact
Piezo-electric actuator
Levitation distance
Publication Date: 2007
Publisher: American Society of Mechanical Engineers
Citation: Journal of Applied Mechanics 74(4): 816-820, Jul 2007
Abstract: This paper presents an investigation into producing self-levitation effect using piezo-electric actuators (PZT). Self-levitation has been demonstrated and results are presented and discussed. A relationship between the levitation distance and weight of the levitating sample has been found. In addition the orientation and position of the PZTs has been found to affect the levitation distance. Modal shapes of the vibration plates used have been produced through modelling annd found to accurately correlate with the experimental results found. Additional evidence suggests that the type of vibration plate material affects the separation distance, possibly due to the material's properties of acoustic reflection.
ISSN: 0021-8936
Appears in Collections:School of Engineering and Design Research papers
Mechanical and Aerospace Engineering

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