ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A Reynolds equation is presented for the hydrodynamic pressure components between thetwo faces of a partially or fully laser surface textured mechanical seal (LST-MS) by considering thehydrostatic and hydrodynamic characteristics and cavitation within the sealing fluid film. Galerkin’smethod is used to set up the finite element model for the Reynolds equation. The effects of geometricparameters of the spherical dimple on seal performance of a LST-MS are studied. The texturingparameters are numerically optimized to obtain the maximum opening force and/or the maximumratio of fluid film stiffness to leakage rate. It is shown that a full LST-MS has stronger hydrodynamiceffect and lower frictional torque between the two faces than that of a partial LST-MS, but the latterworks at a less leakage and a more stable working state. Thus a partial LST-MS is recommended forpractical application for its better comprehensive seal performance
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.373-374.766.pdf
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