Conditions of Lift-Off and Film Thickness in Squeeze Film Levitation-Reference-Cited by-同舟云学术

Conditions of Lift-Off and Film Thickness in Squeeze Film Levitation

Published:2018-01-29 Issue:3 Volume:140 Page:
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Brunetière Noël¹,Blouin Antoinette¹,Kastane Guytri¹

Affiliation:

1. Institut Pprime, CNRS, Université de Poitiers, Ensma, Futuroscope, Futuroscope F86962, France e-mail:

Abstract

An experimental test rig has been used to analyze the lift-off condition of a squeeze film thrust bearing. It is composed of a vibrating flat plate linked to a piezo-actuator, a cylindrical mass, and two displacement sensors. The frequency and magnitude of oscillation are varied as well as the mass of the solid, to identify the lift-off conditions. The experimental results are compared to numerical simulations. The model solves the transient compressible Reynolds equation coupled with Newton's law for the levitated mass. The model is then used to extend the experimental results to other operating conditions. A dimensionless analysis of the results is performed to study the lift-off conditions and the average film thickness during levitation.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/doi/10.1115/1.4038805/6293059/trib_140_03_031705.pdf

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