Title: Influence of air vortices on the instabilities of aerostatic slider

Authors: Dongju Chen; Lihua Dong; Jinwei Fan

Addresses: Beijing Key Laboratory of Advanced Manufacturing Technology, College of Mechanical Engineering and Applied Electrics Technology, Beijing University of Technology, Beijing 100124, China ' Beijing Key Laboratory of Advanced Manufacturing Technology, College of Mechanical Engineering and Applied Electrics Technology, Beijing University of Technology, Beijing 100124, China ' Beijing Key Laboratory of Advanced Manufacturing Technology, College of Mechanical Engineering and Applied Electrics Technology, Beijing University of Technology, Beijing 100124, China

Abstract: In order to identify the inherent small vibration of the aerostatic slider caused by gas film, dynamic behaviour for the aerostatic slider has been analysed both mathematically and experimentally. The gas flow state has been analysed with velocity slip method. Dynamic equation of the aerostatic slider has been established according to the calculated performance parameters. The frequency characteristics for the pneumatic self-induced oscillation of aerostatic sliders have been measured signal by piezoelectric acceleration sensor. The basic frequencies of slider system have been identified according to Fourier transformation, which is consistent with the values deduced with the theory equation.

Keywords: air vortices; instabilities; aerostatic slider; velocity slip; micro-scale.

DOI: 10.1504/IJIMS.2016.084542

International Journal of Internet Manufacturing and Services, 2016 Vol.4 No.2, pp.102 - 117

Available online: 13 Jun 2017 *

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