TY  - JOUR
PY  - 2015//
TI  - Numerical analysis of the transportation characteristics of a self-running sliding stage based on near-field acoustic levitation
JO  - Journal of the Acoustical Society of America
A1  - Feng, Kai
A1  - Liu, Yuanyuan
A1  - Cheng, Miaomiao
SP  - e3723
EP  - e3723
VL  - 138
IS  - 6
N2  - Owing to its distinct non-contact and oil-free characteristics, a self-running sliding stage based on near-field acoustic levitation can be used in an environment, which demands clean rooms and zero noise. This paper presents a numerical analysis on the lifting and transportation capacity of a non-contact transportation system. Two simplified structure models, namely, free vibration and force vibration models, are proposed for the study of the displacement amplitude distribution of two cases using the finite element method. After coupling the stage displacement into the film thickness, the Reynolds equation is solved by the finite difference method to obtain the lifting and thrusting forces. Parametric analyses of the effects of amplitude, frequency, and standing wave ratio (SWR) on the sliding stage dynamic performance are investigated. Numerical results show good agreement with published experimental values. The predictions also reveal that greater transportation capacity of the self-running sliding stage is generally achieved at less SWR and at higher amplitude.<p />  <p>Language: en</p>
LA  - en
SN  - 0001-4966
UR  - http://dx.doi.org/10.1121/1.4938220
ID  - ref1
ER  -