This work investigates the effect of various assumptions proposed by the classical Reynolds lubrication equation. In particular, a microplate oscillating at high frequencies (beyond cutoff) and high velocities leading to appreciable displacement within the film gap is studied. An analytical model is derived with special emphasis on the fluid's inertia effect on the fluid/solid interface. By implementing the direct simulation Monte Carlo (DSMC) method, a numerical method for modeling rarefied gas flow, the analytically based model is adjusted for the force exerted by the gas on the oscillating micro-structure to capture various significant effects related to the fluid's inertia, compressibility, stiffness, and damping.
Modeling Squeeze Films in the Vicinity of High Inertia Oscillating Microstructures
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received March 29, 2013; final manuscript received January 14, 2014; published online February 24, 2014. Assoc. Editor: Daniel Nélias.
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Diab, N. A., and Lakkis, I. (February 24, 2014). "Modeling Squeeze Films in the Vicinity of High Inertia Oscillating Microstructures." ASME. J. Tribol. April 2014; 136(2): 021705. https://doi.org/10.1115/1.4026588
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