...C. J. Teo; Z. S. Spakovszky; S. A. Jacobson Ultrashort microscale high-speed gas bearings exhibit a whirl instability limit and dynamic behavior much different from conventional hydrostatic gas bearings. In particular, the design space for a stable high-speed operation is confined to a narrow...

... 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...