Dynamically loaded cylindrical squeeze films are analysed by a finite difference technique for predicting the transient fluid velocity and pressure fields, as well as the resulting squeeze force, given any specified motion of the internal cylinder. Apart from neglecting axial flow, no assumptions are made with respect to the relative magnitudes of the terms in the flow equations. Experimental results were obtained using a test apparatus in which quasi-elliptical orbits were generated using spinning eccentric masses. The squeeze force data show reasonable agreement with numerical results obtained for five orbit cases.
Get full access to this article
View all access options for this article.
References
1.
PettigrewM. J.KoP. L.A comprehensive approach to avoid vibration and fretting in shell-and-tube heat exchangers. Flow induced vibration of power plant components, ASME PVP-41, 1980, 1–18.
2.
KoP. L.RogersR. J.Analytical and experimental studies of tube/support interaction in multi-span heat exchanger tubes. Nuclear Engng Des., 1981, 65, 399–409.
3.
ChandraA.RogersR. J.The normal approach, contact, and rebound of lubricated cylinders. Trans. ASME, J. Lubric. Tech., 1983, 105, 271–279.
4.
ModestM. F.TichyJ. A.Squeeze film flow in arbitrarily shaped journal bearings subject to oscillations. Trans. ASME, J. Luhric. Tech., 1978, 100, 323–329.
5.
MulcahyT. M.Fluid forces on rods vibrating in finite length annular regions. J. Appl. Mech., 1980, 47, 234–240.
6.
TichyJ. A.Effects of fluid inertia and viscoelasticity on squeeze film bearing forces at large vibration amplitudes. Wear, 1982, 76, 69–89.
7.
SestieriA.PivaR.The influence of fluid inertia in unsteady lubrication films. Trans. ASME, J. Lubric. Tech., 1982, 104, 180–186.
8.
ViecelliJ. A.A computing method for incompressible flows bounded by moving walls. J. Comput. Phys., 1971, 8, 119–143.
9.
WilliamsG. P.Numerical integration of the three-dimensional Navier Stokes equations for incompressible flow. J. Fluid Mech., 1969, 37, Part 4, 727–750.
10.
PatankarS. V.Numerical heat transfer and fluid flow, Hemisphere Publishing Corporation, 1980. 83–85, New York.
11.
WelchJ. E.HarlowF. H.ShannonJ. P.DalyB. J.The MAC method. LASL Report No. LA-3425, 1966, Los Alamos Scientific Laboratory, Los Alamos, New Mexico.
12.
AmsdenA. A.HarlowF. H.The SMAC method: a numerical technique for calculating incompressible fluid flows. LA-4370, 1970, Los Alamos Scientific Laboratory, Los Alamos, New Mexico.
