Spectral properties and identification of aerostatic bearings

0358384 - ÚT 2012 RIV DE eng J - Journal Article
Kozánek, Jan - Půst, Ladislav
Spectral properties and identification of aerostatic bearings.
Acta Mechanica Sinica. Roč. 27, č. 1 (2011), s. 63-67. ISSN 0567-7718. E-ISSN 1614-3116.
[International Conference on Dynamical Systems - Theory and Applications /10./. Lodz, 07.12.2009-10.12.2009]
R&D Projects: GA ČR GA101/09/1522
Institutional research plan: CEZ:AV0Z20760514
Keywords : aerostatic bearing * identification * stiffness * damping coefficients
Subject RIV: BI - Acoustics
Impact factor: 0.860, year: 2011
http://www.springerlink.com/content/34l382r75g8wu716/

Modified rotor kit Bently Nevada was used for dynamic characteristics measurements of new developed aerostatic bearings. Mathematical model of these bearings is considered as linear. Model was identified with the help of harmonic force excitation independently from the speed of journal rotation. The stiffness and damping matrices were identified for different air inlet pressures. The calculated spectral properties allow to determine the stability boundary for suitable variation of model parameters.
Permanent Link: http://hdl.handle.net/11104/0196447