High-speed bearings for micro gas turbines: stability analysis of foil bearings
作者： P Vleugels , T Waumans , J Peirs , F Al-Bender , D Reynaerts
DOI: 10.1088/0960-1317/16/9/S16
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摘要: Mesoscopic or microscopic gas turbines can be an interesting replacement for batteries as mobile energy supplies. A difficult consequence of small-scale turbomachinery is an increased rotor speed, in the order of 500 000 rpm and higher, turning bearing design into a challenging task. Air bearings are the only bearing type able to withstand the severe conditions of high speed and high temperature. However air bearings and more, in particular, aerodynamic bearings are prone to dynamic instabilities. Therefore …
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