This paper deals with the application of the so-called Harmonic Balance method to the problem of determining the non-linear vibration response of a rotating assembly comprising a rotor, flexible bearing housing and oil film damper. For the latter, due consideration is given to the effects of oil supply pressure, film rupture pressure and end sealing. The paper concludes with some comments on the subject of optimizing a damper to fulfil a given purpose.
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References
1.
GuangM.The equivalent linearisation of a nonlinear system with respect to its fractional harmonic response and the application to squeeze film damper bearings. Machine vibration, 1992, Vol 1, 29–35 (Springer-Verlag London Limited).
2.
LevesleyM. C.HolmesR.Experimental investigation into the vibration response of an aero-engine rotor-damper assembly. Proc. Instn Mech. Engrs, Part G, 1994, 208(G1), 52–66.
3.
SykesJ. E. H.HolmesR.The effects of bearing misalignment on the non-linear vibration of aero-engine rotor-damper assemblies. Proc. Instn Mech. Engrs, 1990, 204, 83–99.
4.
HolmesR.DoganM.The performance of a sealed squeeze film bearing in a flexible support structure. Proc. Instn Mech. Engrs, 1985, 199, 1–9.
5.
San AndresL. A.VanceJ. M.Effects of fluid inertia and turbulence on the force coefficients for squeeze film dampers. Trans. ASME J Engng Gas Turb. and Power, 1986, 108, 332–339.
