RESEARCH Of THE INFLUENCE OF LONG-LASTING CYCLIC LOADING ON THE GEOMETRY OF THE BUMP FOIL OF A GAS FOIL BEARING
Journal Title: Tribologia - Year 2019, Vol 284, Issue 2
Abstract
The article describes the research aimed at checking the effect of a long-lasting pulsating load on the geometry of the bump foil of a foil bearing. The tested foil was made of Inconel 625, which is one of the most popular alloys used to manufacture components of foil bearings. The foil was tested both before and after its heat treating in an electric furnace. The foil was subjected to loading using an electromagnetic vibration exciter, whose exciting force and frequency were appropriately selected. The height of the individual bumps of the foil was the basic parameter controlled after each measurement series. In addition, wear of the foil at the contact points with the plates of the test rig was checked. The materials of which the elements of the tested system were made are the same as the ones used in a real bearing. The article presents graphs that show how the geometry of the bump foil changed during the research. The wear of the elements mating with the bump foil was also evaluated.<br/><br/>
Authors and Affiliations
Paweł Bagiński, Grzegorz Żywica
Keywords
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- EP ID EP641590
- DOI 10.5604/01.3001.0013.4143
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