Hydrodynamic Effects in a Misaligned Radial Face Seal

[+] Author and Article Information
I. Etsion

Dept. of Mechanical Engineering, Technion, Haifa, Israel

J. of Lubrication Tech 101(3), 283-290 (Jul 01, 1979) (8 pages) doi:10.1115/1.3453352 History: Received November 07, 1977; Revised March 13, 1978; Online October 20, 2010


Hydrodynamic effects in a flat seal having an angular misalignment are analyzed, taking into account the radial variation in seal clearance. An analytical solution for axial force, restoring moment, and transverse moment is presented that covers the whole range from zero to full angular misalignment. Both low pressure seals with cavitating flow and high pressure seals with full fluid film are considered. Strong coupling is demonstrated between angular misalignment and transverse moment which leads the misalignment vector by 90 degrees. This transverse moment, which is entirely due to hydrodynamic effects, may be a significant factor in seal operating mechanism.

Copyright © 1979 by ASME
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