IDENTIFICATION OF BEARING STIFFNESS AND DAMPING COEFFICIENTS USING PHASE-PLANE DIAGRAMS Conference Paper uri icon

abstract

  • The reliable identification of dynamic parameters in mechanical systems remains a big challenge, in particular for nonlinear systems. There is not a single mathematical model encompassing the universe of most systems. From a practical point of view, the identification of system parameters depends on the measurement data as well as on the reference model. This paper presents a novel method for identifying the dynamic parameters of a gas bearing, whose force coefficients are strong functions of frequency. The method is based on the analysis of the phase diagram with the model assuming a mass-damper-spring system with time-dependent force coefficients. The phase diagram could be implemented electronically for on line monitoring and ready fault detection.

name of conference

  • Volume 7: Structures and Dynamics, Parts A and B

published proceedings

  • PROCEEDINGS OF THE ASME TURBO EXPO 2012, VOL 7, PTS A AND B

author list (cited authors)

  • Jauregui, J. C., Andres, L. S., & De Santiago, O.

citation count

  • 2

complete list of authors

  • Jauregui, Juan C||Andres, Luis San||De Santiago, Oscar

publication date

  • June 2012