In all previous numerical simulations of the rotary lip seal, the sealing surface was modeled by regular periodic structures. In the present study, a more realistic quasirandom surface is used. A mixed elastohydrodynamic analysis is used to generate predictions of such seal operating characteristics as friction coefficient, reverse pumping rate, film thickness distribution, hydrodynamic and contact pressure distributions, contact area, and cavitation area. The results are in qualitative agreement with previous experimental observations. In the course of the simulations, a new physical mechanism of reverse pumping has been identified.
Numerical Study of a Rotary Lip Seal With a Quasi-Random Sealing Surface
Contributed by the Tribology Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for presentation at the STLE/ASME Tribology Conference, Seattle, WA, October 1–4. Manuscript received by the Tribology Division Feb. 7, 2000; revised manuscript received July 6, 2000. Paper No. 2000-TRIB-29. Associate Editor: L. San Andre´s.
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Shi, F., and Salant, R. F. (July 6, 2000). "Numerical Study of a Rotary Lip Seal With a Quasi-Random Sealing Surface ." ASME. J. Tribol. July 2001; 123(3): 517–524. https://doi.org/10.1115/1.1308028
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