Abstract
The use of air as a lubricant in aerodynamic bearings is advantageous, particularly in the food industry. Aerodynamic bearings with tilting pads have complicated stiffness and damping properties and need a very detailed theoretical and experimental research. Response curves of rigid rotor supported on aerodynamic bearings are presented for a linear but evolutive mathematical model. Due to non-monotone properties of stiffness and damping matrices at variable revolutions, a new resonance appears. The mathematical model of rotor vibrations in the whole area of bearing clearance is also developed in the consideration of strongly nonlinear properties of aerodynamic bearing.
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Půst, L., Kozánek, J. Evolutive and nonlinear vibrations of rotor on aerodynamic bearings. Nonlinear Dyn 50, 829–840 (2007). https://doi.org/10.1007/s11071-007-9228-z
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DOI: https://doi.org/10.1007/s11071-007-9228-z