Abstract
The dynamic characteristics of gas bearings can be represented by a set of stiffness and damping coefficients, which are functions of the static load, the rotating speed and the whirl frequency of the bearing shaft. These coefficients can be used directly in a critical speed calculation or an unbalance response calculation. In addition, the coefficients can be used in a stability investigation. Values of the coefficients are computed mostly by the perturbation method in the Reynolds equation, which is the basic equation of the mathematical model of gas bearings. This method is restricted to the self-acting or porous bearings; in general it enables us to determine only the eight linear stiffness and damping coefficients.
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© 1999 Springer Science+Business Media New York
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Czolczynski, K. (1999). Identification of Stiffness and Damping Coefficients. In: Rotordynamics of Gas-Lubricated Journal Bearing Systems. Mechanical Engineering Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-1518-9_3
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DOI: https://doi.org/10.1007/978-1-4612-1518-9_3
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4612-7176-5
Online ISBN: 978-1-4612-1518-9
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