EXPERIMENTAL RESEARCH ON GAS FOIL BEARINGS WITH POLYMER COATING AT AN ELEVATED TEMPERATURE
Journal Title: Tribologia - Year 2016, Vol 267, Issue 3
Abstract
As demand for high-performance fluid-flow machines (including micro-turbines) increases across the globe, new non-conventional bearing systems are needed. In the last years, specialized technical solutions involving the use of gas foil bearings have been progressively introduced. The application of carefully selected, thin foils as key parts of foil bearings ensures stable operation of the rotor, which is supported by such bearings, even at very high rotational speeds. The article discusses the tests performed on the foil bearings incorporating a friction relieving polymer coating. The research was conducted on an advanced test rig allowing the experiments to be run at high speeds and elevated temperatures, which is in conditions that are typical for micro-turbine operation. The measurements of bearing components’ temperature and vibration levels were carried out at various rotational speeds. The tested bearings were also assessed from the point of view of wear and durability. Conducted research demonstrated that the carefully selected materials that were used to manufacture foil bearings’ key components have successfully contributed to achieving reliable operation within a wide range of rotational speeds, providing very good dynamic properties for the rotor.<br/><br/>
Authors and Affiliations
Grzegorz ŻYWICA, Paweł BAGIŃSKI, Artur ANDREARCZYK
Keywords
Related Articles
- EP ID EP246440
- DOI 10.5604/01.3001.0010.7355
- Views 52
- Downloads 0
The effect of zinc dithiophosphates on the friction and wear of partially stabilised zirconia. Part III. Lubrication of frictional contact
Lubrication properties of zinc di-n-alkyldithiophosphates (ZDTPs), zinc di(n-nonylphenyl)-dithiophosphate (MAP) and di(di-n-nonylphenyl) dithiophosphate (DAP) depend on the additive molecular structure and its solution c...
ANALYSIS OF THE INFLUENCE OF BASIC CONSTRUCTIONAL PARAMETERS ON POWER LOSSES IN THE MESHING OF A TOOTHED CYLINDRICAL GEAR
Efficiency of gear depends, in significant measure, on power losses that occur in meshing, bearing and sealing. An amount of these losses depends on friction conditions in the named nodes of gear design, and it is define...
Ocena własności tribologicznych nowych materiałów narzędziowych na osnowie niklu
W niniejszej pracy przedstawiono nowe materiały na osnowie niklu umacniane związkami faz międzymetalicznych o dużej zawartości węgla. Skład chemiczny nowych materiałów zaprojektowano tak, aby umocnienie osnowy uzyskać w...
ANALYSIS OF CONTACT STRESS AND BENDING STRESS OCCURING IN TOOTHS OF GEAR TRANSMISSION POWER SHIFTS
The study summarises the problems associated with contact stress and bending stress highlighted in the course of numerical tests of a power shift incorporating fourteen wheels, making up ten toothed pairs. The study inve...
THE COMPARATIVE ANALYSIS OF LUBRICANT PROPERTIES OF MACHINE OIL AN-46 BEFORE AND AFTER THE PROCESS OF EXPLOITATION
This paper presents the results of research of the lubricating properties machine oil An-46. It is applied to smearing the part of industrial machines. In the institution of the research of oil in Zielona Góra it is appl...