... simulation hydrodynamics lubrication mechanical contact Poiseuille flow rough surfaces sealing materials seals (stoppers) surface roughness mechanical face seals mixed lubrication hydrodynamic lubrication roughness deterministic simulation This work is focused on mixed lubrication...

... bearings sealing materials viscosity radial lip seal grease rheology sealing function contaminant particle migration Radial lip seals are traditionally used to prevent loss of lubricant. However, in “sealed and greased for life” bearings or bearing systems that are lubricated with grease...

... rubber sealing materials wear 20 04 2010 29 04 2011 23 06 2011 23 06 2011 2011 American Society of Mechanical Engineers ...

... for seals or thrust bearings. In all the simulations, the dimples are assumed to be circular in the r - θ plane with a spherical cap bottom shape. 06 05 2010 03 11 2010 22 03 2011 22 03 2011 cavitation density force friction liquid films machine bearings sealing...

... = 5 gives a reasonable estimate of the relaxation time scales covered by the seal material. Base parameters Seal material Polyurethane E ∞ 43 MPa E i for i = 1 : 5 [ 90 × 10 6 , 15 × 10 6 , 11 × 10 6...

... elastomers finite element analysis mechanical contact sealing materials stress-strain relations contact pressure retention seals seal design viscoelastic material The essential features and operation of many types of mechanical seals are exemplified in O-ring seals. The compliant O-ring...

... rings (structures) sealing materials stress-strain relations compression set design elastomer material behavior seals The use of more than one material in a structure to improve overall performance is an accepted design principle. For example, composite materials are designed...

... on different cavitation theories. The results reveal that the load-carrying capacity of dimple-enhanced surfaces is limited under the simulated conditions. 18 02 2009 06 06 2009 21 09 2009 cavitation differential equations machine bearings sealing materials mass-conservative...

...Mohammed Diany; Abdel-Hakim Bouzid The long term tightness performance of stuffing-box packings, used in valves, is conditioned by the capacity of its sealing material to maintain a contact pressure to a predetermined minimal threshold value. Due to the creep, this contact pressure decreases...

... seal bearing elastohydrodynamics microasperity numerical calculation Couette flow elastodynamics friction hydrodynamics lubrication pumps sealing materials shafts 14 03 2006 02 04 2007 2007 American Society of Mechanical Engineers ...

... computational fluid dynamics flow simulation sealing materials seals (stoppers) lubricating oils lubrication design engineering shafts machine bearings contamination seal windback labyrinth gas compressor The gas face seal used in centrifugal gas compressors will fail if exposed...

... contact indentation beams (structures) Fourier series boundary-value problems elasticity sealing materials 06 04 2006 31 08 2006 2007 American Society of Mechanical Engineers ...

... 2005 14 07 2006 brushes sealing materials hysteresis wires turbomachinery aerodynamics rotors mechanical contact stress analysis micromechanics bending numerical analysis shafts design engineering brush seal hysteresis Brush seals are a recent innovation in seal...

..., we will discuss the failure mode of DLC coatings. 28 12 2004 03 07 2006 diamond-like carbon alumina ceramics sealing materials seals (stoppers) wear friction plasma deposition plasma immersion ion implantation scanning electron microscopy X-ray chemical analysis surface...

... laminar flow sealing materials mechanical seal flow field CFD K−ε turbulence model fractional approach method The most practical and common method for preventing process fluid (sometimes hazardous) from leaking out of the pump into the surroundings is to isolate the rotating shaft and its...

... received October 24, 2003. Associate Editor: S. Wu. 13 February 2003 24 October 2003 28 06 2004 seals (stoppers) surface topography finite element analysis sealing materials leak detection Sealability Seal Metal-to-Metal Seal Sealing Compound Cup and Cone...