Experimental Investigations of Ultrasonic Levitation in A Machine Tool Spindle System

authored by

Su Zhao, Joerg Wallaschek

Abstract

An investigation into a non-contact bearing for machine tool spindle system that functions on the squeeze film ultrasonic levitation is conducted in this paper. Squeeze film type ultrasonic levitation is investigated experimentally and compared with the performance predicted by the theoretical models. A prototype non-contact journal bearing is developed for suspension of a solid steel spindle with diameter of 50 mm. The maximum load capacity of 51 N (6.37 N/cm²) is obtained which is considerably larger than the previously reported squeeze film bearings whose load capacities are usually within a few Newton (less than 1 N/cm²).

Organisation(s)

Institute of Dynamics and Vibration Research

Type

Conference contribution

Publication date

01.04.2010

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Acoustics and Ultrasonics

Electronic version(s)

https://doi.org/10.1109/ULTSYM.2009.5441680 (Access: Closed)