Standing wave acoustic levitation on an annular plate

Date

2016-11-10

Author

Kandemir, Mehmet Hakan
Çalışkan, Mehmet

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In standing wave acoustic levitation technique, a standing wave is formed between a source and a reflector. Particles can be attracted towards pressure nodes in standing waves owing to a spring action through which particles can be suspended in air. This operation can be performed on continuous structures as well as in several numbers of axes. In this study an annular acoustic levitation arrangement is introduced. Design features of the arrangement are discussed in detail. Bending modes of the annular plate, known as the most efficient sound generation mechanism in such structures, are focused on. Several types of bending modes of the plate are simulated and evaluated by computer simulations. Waveguides are designed to amplify waves coming from sources of excitation, that are, transducers. With the right positioning of the reflector plate, standing waves are formed in the space between the annular vibrating plate and the reflector plate. Radiation forces are also predicted. It is demonstrated that small particles can be suspended in air at pressure nodes of the standing wave corresponding to a particular bending mode.

Subject Keywords

Acoustic levitation, Standing wave acoustic levitation

URI

https://hdl.handle.net/11511/48131

Journal

JOURNAL OF SOUND AND VIBRATION

DOI

https://doi.org/10.1016/j.jsv.2016.06.043

Collections

Department of Mechanical Engineering, Article

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Citation Formats

M. H. Kandemir and M. Çalışkan, “Standing wave acoustic levitation on an annular plate,” JOURNAL OF SOUND AND VIBRATION, pp. 227–237, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48131.