000001989 001__ 1989
000001989 005__ 20141118153447.0
000001989 04107 $$acze
000001989 046__ $$k2011-05-09
000001989 100__ $$aVaverka, M.
000001989 24500 $$aINFLUENCE OF SURFACE DENTS ON ELASTOHYDRODYNAMIC AND MIXED LUBRICATION

000001989 24630 $$n17.$$pEngineering Mechanics 2011
000001989 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Brno
000001989 506__ $$arestricted
000001989 520__ $$2eng$$aMachine parts with non-conformal contact surfaces frequently operate in elastohydrodynamic or mixed regime of lubrication. In surroundings of asperities significant changes in lubricant film thickness and also contact pressure occur, which can lead to failure. The article deals with the influence of surface dents on film thickness, contact pressure and rolling contact fatigue. These quantities are important for machine design in terms of failure (pitting and scuffing). Lubricant film thickness is measured by thin film colorimetric interferometry (TCFI) and contact pressure is calculated using inverse elasticity theory enhanced by convolution algorithms. Rolling contact fatigue tests show that it is possible to design surface textures of suitable layout of microdents which can have positive effect on lubrication and rolling contact fatigue life.

000001989 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001989 653__ $$aElastohydrodynamic lubrication, EHL, surfaces, roughness, contact pressure, asperities, dents, contact fatigue.

000001989 7112_ $$aEngineering Mechanics 2011$$cSvratka (CZ)$$d2011-05-09 / 2011-05-12$$gEM2011
000001989 720__ $$aVaverka, M.$$iVrbka, M.$$iŠamánek, O.$$iZapletal, L.
000001989 8560_ $$ffischerc@itam.cas.cz
000001989 8564_ $$s838964$$uhttps://invenio.itam.cas.cz/record/1989/files/p151.pdf$$y
             Original version of the author's contribution as presented on book, page 643.
            
000001989 962__ $$r1835
000001989 980__ $$aPAPER