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.<br/><br/>
Authors and Affiliations
Rafał GAWARKIEWICZ
THE INFLUENCE OF UNIAXIAL COMPRESSION ON THE FRICTION COEFFICIENT (POLYMER–STEEL PAIR), WEAR, AND HARDNESS IN SELECTED THERMOPLASTICS
Plastic plain bearings are deformed during assembly. According to one of the leading manufacturers of plastic sliding elements, the bushing’s internal diameter may be reduced by up to 2.5%. Moreover, plastic sliding elem...
Ograniczenie trwałości skojarzeń ceramicznych w wyniku propagacji pęknięć powierzchniowych
ANALIZA OCENY STANU ZUŻYCIA ŚCIERANYCH POWIERZCHNI BETONOWYCH Z ZASTOSOWANIEM SKANOWANIA PRZESTRZENNEGO
W artykule przedstawiono wyniki analizy uszkodzeń powierzchni ścieranych betonów podwodnych z zastosowaniem skanowania przestrzennego. Badanie ścieralności betonów wykonano metodą podwodną wg ASTM C1138. Skanowanie przes...
THE POSSIBILITY OF THE APPLICATION OF BORON NITRIDE h-BN AS A COMPONENT OF IRON POROUS SINTER
The results of research on the iron sinters containing various amounts hexagonal boron nitride h-BN are presented in this paper. The tribological research was realised with KEWAT-6 and KEWAT-1 machines at the Department...
THE EFFECT OF PIT GEOMETRY IN THE SURFACE ON THE TRIBOLOGICAL PROPERTIES OF SLIDING ELEMENTS
The results of investigations of sliding pairs in material matching (e.g. steel-steel) are presented in the article. The examinations were realized with the utilization of a T-11 tester with the modified sliding pair of...