Some Resolved and Unresolved Areas in Journal Orbit Analysis 920486

In reviewing various industrial software modules used by bearing suppliers and engine companies, we have found a fair level of agreement between them in the final results. We also discovered, however, some unresolved areas which merit further discussion. This paper will focus primarily on those unresolved areas:
  1. 1
    the treatment of partial groove bearings
  2. 2
    calculation of oil flow quantity and its associated temperature rise and friction
  3. 3
    selection of the bearing clearance
  4. 4
    the optimal location of the journal oil hole in the main bearing
  5. 5
    prediction of the fatigue endurance life
  6. 6
    minimum oil thickness allowable
  7. 7
    the prediction of the wear pattern.
Our approach in these areas will be described and then compared with that taken in other industrial softwares.


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