EXPERIMENTAL RESEARCH ON GAS FOIL BEARINGS WITH POLYMER COATING AT AN ELEVATED TEMPERATURE

Apply

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

Charakterystyki tribologiczne APT-T5W w aspekcie różnych węzłów tarcia i rodzajów ruchu

Celem artykułu jest przedstawienie właściwości tribologicznych powłok tlenku aluminium, które zostały wytworzone na stopie aluminium EN-AW-5251 metodą anodowania twardego. Powłoka tlenkowa posiada włóknistą strukturę i p...

ANALYSIS OF THE VALUES OF HYDRODYNAMIC PRESSURE AND LOAD CARRYING CAPACITIES FOR VARIOUS METHODS OF SOLVING A REYNOLDS TYPE EQUATION

Calculations of the hydrodynamic pressure distribution in the slide bearing gap occur most often on the basis of ready-made computer programs based on CFD methods or one’s own calculation procedures based on various nume...

EP ID EP246440
DOI 10.5604/01.3001.0010.7355
Views 50
Downloads 0