SEARCH FOR THE MOST USEFUL GEOMETRY OF AN ACOUSTIC JOURNAL BEARING
Journal Title: Tribologia - Year 2017, Vol 273, Issue 3
Abstract
Computer simulations of a number of journal bearing’s geometries utilising acoustic levitation were carried out. The choice of the best geometry depended on the ability of a deformed shape, created by piezo-electric elements, to facilitate squeeze film ultrasonic levitation, and also to create three evenly distributed diverging aerodynamic gaps. Deformations of analysed variants of the bearing’s shape were generated by numerical simulations utilising the finite element method. For the chosen shapes of geometry, prototype bearings were made and their usefulness verified experimentally. As a result, the bearing with the highest load carrying capacity was identified.
Authors and Affiliations
Rafał GAWARKIEWICZ
Keywords
Related Articles
- EP ID EP239466
- DOI -
- Views 61
- Downloads 0
BADANIA FRETTING-KOROZJI MATERIAŁÓW STOSOWANYCH NA ELEMENTY ENDOPROTEZ STAWU BIODROWEGO
Trwałość eksploatacyjna endoprotez stawu biodrowego zależna jest między innymi od intensywności procesów niszczenia elementów połączeń kinematycznych wywołanych procesami korozji frettingowej. W artykule przedstawiono wy...
TRIBOLOGICAL TESTS OF SPINAL IMPLANTS AND EVALUATION OF THE SUPERFICIAL WEAR
The article presents a simulator for testing spinal implants SBT-03 of our own design. Used to estimate the intensity of different types of intervertebral disc implants, the selection of optimal combinations of materials...
EVALUATION OF TRIBOLOGICAL COATINGS OBTAINED BY METAL SPRAYING
This paper presents the results of tribological properties such as wear and the coefficient of friction forces obtained by coating by metal spraying. The research was based on coatings of nickel, chromium, chromium-nicke...
LIQUID PHASE PRESENCE IN THE CONTACT ZONE OF TOOL AND TITANIUM ALLOY DURING DIE FORGING AS A SOURCE OF A CATASTROPHIC WEAR MECHANISM
The wear mechanisms of titanium alloy forging and tool steel used for die forging are presented. Materials for the investigations were 55NiCrMoV7 tool steel and Ti6Al4V titanium alloy. The die forging process was perform...
DEGREE OF ISOTROPY SURFACE STRUCTURE OF MACHINE ELEMENTS AND WEAR PROCESS
In this paper, the influence of figuration of surface geometric structure on the run of wear processes of frictional pairs is discussed. Arrangement of the traces of machining determined the structure degree of isotropy....