Study of Pressure Distributions in A Flexural Gas Squeeze Film

DOI

10.2991/eame-15.2015.44How to use a DOI?

Keywords

NFAL; pressure distribution; flexural mode; squeeze film

Abstract

Near field acoustic levitation (NFAL) has been used in non-contact handling and transportation. The levitation force is generated by the squeeze film. In order to descript the levitation force precisely, we built a mathematic model of the squeeze film, considering the gas inertia and relevant nonlinear effect with high frequency oscillation. Finite element method (FEM) simulation and measurement test are used to obtain the distribution of squeeze film pressure. Results show that the gas inertia has a significant influence on pressure distribution. The predicted levitation force also agrees with our experimental measurements. This study presents the gas pressure distribution with different mode shapes and explains the mechanism of the NFAL.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - J. Li
AU  - T. Zhang
AU  - C.J. Liu
PY  - 2015/07
DA  - 2015/07
TI  - Study of Pressure Distributions in A Flexural Gas Squeeze Film
BT  - Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering
PB  - Atlantis Press
SP  - 161
EP  - 164
SN  - 2352-5401
UR  - https://doi.org/10.2991/eame-15.2015.44
DO  - 10.2991/eame-15.2015.44
ID  - Li2015/07
ER  -