The exact solution for annular isothermal squeeze films in either parallel or tilting simple harmonic motion of small amplitude is derived. Pressure distributions, forces and moments are given for any inner to outer radius ratio. Comparison of cutoff frequencies with approximate values of previous works indicates that for low inter to outer radius, there exist deviations between the approximate frequencies to the present values. Damping forces correlate well with Green and Etsion’s work for low squeeze numbers and moderately large inner to outer radius ratios.

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