In this paper attention is given to empirically modelling the hydrodynamics of a tightly sealed squeeze-film bearing in a flexible support structure simulating an aero-engine assembly, with a view to assessing its damping performance. It is found that predictable experimental results are obtained by employing an end-leakage factor which relates the outlet pressure around the bearing circumference to the corresponding ‘long-bearing’ pressure. The present work complements that covered in an earlier paper (1), which was concerned with the performance of an open-ended or weakly sealed squeeze-film bearing in a similar support structure.
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References
1.
HolmesR.DoganM.Investigation of a rotor bearing assembly incorporating a squeeze-film damper bearing. J. Mech. Engng Sci., 1982, 24, No. 3, 129–137.
2.
PinkusO.SternlichtB.Theory of hydrodynamk lubrication, 1961, McGraw-Hill Inc., New York.
3.
DoganM. DPhil thesis, University of Sussex, 1983.
4.
HolmesR.The non-linear performance of squeeze-film bearings. J. Mech. Engng Sci., 1972, 14, No. 1. 74–77.
5.
HolmesR.DedeM.Dynamic pressure determination in a squeeze-film damper. Vibrations in Rotating Machinery, Sept 1980, Instn Mech Engrs Conference, paper C260/80, pp 71–75.
