...Nick Morris; Ramin Rahmani; Homer Rahnejat; Bharat Bhushan Surfaces of air foil thrust and journal bearings in high-speed turbomachinery are coated to improve their operational integrity, particularly when the aerodynamic load-carrying capacity is reduced during instances of startup and shutdown...

...Donghyun Lee; Daejong Kim; Ramesh P. Sadashiva Oil-free turbomachinery have emerged as one of the core technologies for the future green power generation systems as stand-alone systems or hybridized with high temperature fuel cells or solar systems. Oil-free technology allows compact, clean...

.... 28 07 2009 11 01 2010 14 04 2010 14 04 2010 convection foils machine bearings rotors turbomachinery air foil bearing microturbomachinery THD analysis Environment-friendly microturbomachinery, with power ranges less than 1 MW (from definition of the Gas...

... 2009 22 09 2009 machine bearings rotors shock absorbers turbomachinery vibration control vibrations viscoelasticity tilting pad gas bearing damper rotordynamics compliant pads Microturbomachinery (MTM) using oil-free bearings typically has power outputs less than 1 MW...

...Tae Ho Kim; Anthony W. Breedlove; Luis San Andrés Oil-free turbomachinery relies on gas bearing supports for reduced power losses and enhanced rotordynamic stability. Gas foil bearings (GFBs) with bump-strip compliant layers can sustain large loads, both static and dynamic, and provide damping...

...Kai Feng; Shigehiko Kaneko The applications of foil air bearings have been extended for use in a wide range of turbomachineries with high speed and high temperature. Lubricant temperature becomes an important factor in the performance of foil air bearings, especially at high rotational speeds...

...-stator displacements ( 15 ). 17 04 2006 03 11 2006 rotors seals (stoppers) shock absorbers design engineering damping machine bearings damper seal force coefficients rotordynamics turbomachinery Annular gas seals in turbomachinery are necessary components...

... accommodate rotor thermal and centrifugal growth, which are very common in high-speed turbomachinery. Flexure pivot tilting pad gas bearings ( 7 8 9 10 11 ) have no pivot wear and tolerance accumulation with a penalty of finite tilting stiffness because the pads and bearing housing are constructed...

... 2005 14 07 2006 brushes sealing materials hysteresis wires turbomachinery aerodynamics rotors mechanical contact stress analysis micromechanics bending numerical analysis shafts design engineering brush seal hysteresis Brush seals are a recent innovation in seal...

... and infinite rotor speeds. At infinite speed, cross-coupled stiffnesses are nil, and thus, GFBs are impervious to hydrodynamic whirl instability. DellaCorte , C. , and Valco , M. J. , 2000 , “ Load Capacity Estimation of Foil Air Journal Bearings for Oil-Free Turbomachinery Applications...