Shaft Center Orbit in Dynamically Loaded Bearings

    Research output: Contribution to conferencePosterResearchpeer-review

    Abstract

    The aim of this work is to demonstrate how to utilize the bearings damping coefficients to estimate the orbit for a dynamically loaded journal bearing. The classical method for this analysis was developed by Booker in 1965 and described further in 1972. Several authors have refined this method over the years. In 1966 Jorgen W. Lund published an approach to find the dynamic coefficients of a journal bearing by a first order perturbation of the Reynold's equation. These coefficients made it possible to perform a rotor-bearing stability analysis for a statically loaded bearing. In the mid seventies Jorgen W. Lund pointed out in lecture notes that the dynamic damping coefficients of the bearing could be used to find the shaft orbit for dynamically loaded bearings. For simplicity the "Short-Width-Journal-Bearing Theory" is used as a basis for finding the damping coefficients in this work, but the method is general and the damping coefficients could have been found also by numerical solutions.
    Original languageEnglish
    Publication date2005
    Publication statusPublished - 2005
    EventWorld Tribology Congress III - Washington DC, United States
    Duration: 12 Sept 200516 Sept 2005
    Conference number: 3

    Conference

    ConferenceWorld Tribology Congress III
    Number3
    Country/TerritoryUnited States
    CityWashington DC
    Period12/09/200516/09/2005

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