EXPERIMENTAL INVESTIGATION OF A FOIL BEARING STRUCTURE WITH A POLYMER COATING UNDER STATIC LOADS
Journal Title: Tribologia - Year 2018, Vol 278, Issue 2
Abstract
Gas foil bearings can operate at very high temperatures and rotational speeds. The operation under such conditions requires developing an appropriate bearing design, including the use of advanced material solutions. This article presents one of the basic stages of work on a new foil bearing, namely, experimental research on the structural supporting layer of such a bearing regarding its static loads. Tests of the bearing were carried out on a test rig specially prepared for this purpose. Changing the magnitude and direction of the load was possible. The elasto-damping elements of the bearing were made of thin metal foils. In addition, a layer of carefully selected polymer was applied onto one side of the top foil in order to protect the surface and reduce friction. Characteristics of the structure of the foil bearing were determined at various load variants after taking a series of measurements upon it. The conducted research has yielded much information about static characteristics of the structural supporting layer of a new foil bearing in which the top foil’s surface is covered with a layer of polymer. These results can be used, among other things, to optimise the bearing design and to verify numerical models.<br/><br/>
Authors and Affiliations
Grzegorz ŻYWICA, Paweł BAGIŃSKI
Keywords
Related Articles
- EP ID EP402751
- DOI 10.5604/01.3001.0012.6988
- Views 53
- Downloads 0
WEAR PATTERN TESTING OF CERAMIC COATINGS UNDER RECIPROCATING SLIDING
A ball-on-plate system was used for the investigation of the wear of ceramic coatings. Coated stainless steel balls (Ø 5 mm) were sliding under constant load at a nominal surface pressure of 1,155 GPa on a ceramic coated...
Capacity enhancement in HDD conical micro-bearings
This paper presents a method of pressure and carrying capacity calculation in slide conical micro-bearing occurring in HDD computer discs. The authors compare they’re own results of pressure and capacity distributions wi...
ANALIZA STOPNIA USZKODZENIA ZMĘCZENIOWEGO HYDROTERMICZNEGO WARSTWY WIERZCHNIEJ KOMPOZYTÓW POLIMEROWO-CERAMICZNYCH PRZEZNACZONYCH DO EKSPLOATACJI W WĘŹLE BIOTRIBOLOGICZNYM
W pracy podjęto problem oceny jakości eksploatacyjnej warstwy wierzchniej (WW) kompozytów polimerowo- ceramicznych. Tworzywa te są stosowane w stomatologii zachowawczej do odtwarzania cech geometrycznych zębów ludzkich b...
STRUCTURE AND TRIBOLOGICAL PROPERTIES OF DUPLEX LAYERS OF THE CrC+(Ni-W) TYPE, PRODUCED BY MEANS OF THE VACUUM CHROMIZING PROCESS TOGETHER WITH GALVANIC TREATMENT
In this paper, duplex layers of the CrC+(Ni-W) type produced on tool steel surface, in combined galvanic and vacuum chromizing processes, are investigated. Studies of layer thickness, their morphology, and concentration...
WŁAŚCIWOŚCI STRUKTURALNE I ODPORNOŚĆ NA ZUŻYWANIE ŚCIERNE STALI BRINAR 400 I BRINAR 500
W pracy przedstawiono budowę strukturalną oraz wyniki badań odporności na zużywanie ścierne stali Brinar 400 i Brinar 500. Na podstawie przeprowadzonych metodami mikroskopii świetlnej i skaningowej badań wykazano, że sta...