Journal of Tribology, Volume 129, Issues 3-4American Society of Mechanical Engineers, 2007 - Tribology |
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Page 548
... Contact pressure is represented by a contour plot in which regions where the dimensionless pressure ( normalized by Hertz pressure ) > 1.3 are in white . For the sinusoidal surface case , this comparison is illustrated in Fig . 3 ...
... Contact pressure is represented by a contour plot in which regions where the dimensionless pressure ( normalized by Hertz pressure ) > 1.3 are in white . For the sinusoidal surface case , this comparison is illustrated in Fig . 3 ...
Page 776
... contact pressure arising at yielding , K , as Eq . ( 9 ) shows , is expressed as a function of f ( k , v , Z " ) . The values of v = 0.3 , E = 2.07 × 1011 Pa , Y = 7 × 108 Pa , and R = 10-4 m were used in the FEA simulation for steel ...
... contact pressure arising at yielding , K , as Eq . ( 9 ) shows , is expressed as a function of f ( k , v , Z " ) . The values of v = 0.3 , E = 2.07 × 1011 Pa , Y = 7 × 108 Pa , and R = 10-4 m were used in the FEA simulation for steel ...
Page 780
Dimensionless Average Contact Pressure , ave N 108 10-9 10-10 The present model a , ( k = 1 ) e a2 ( k = 1 / 2 ) a3 ( k = 1 / 5 ) E = 2.275x1011 Pa Y = 7x108 Pa R = 10 m Contact Area , A ( m2 ) 3 b1 , b2 , bz : Elastoplastic ( 1≤8 / 8_ ...
Dimensionless Average Contact Pressure , ave N 108 10-9 10-10 The present model a , ( k = 1 ) e a2 ( k = 1 / 2 ) a3 ( k = 1 / 5 ) E = 2.275x1011 Pa Y = 7x108 Pa R = 10 m Contact Area , A ( m2 ) 3 b1 , b2 , bz : Elastoplastic ( 1≤8 / 8_ ...
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adhesion force air bearing analysis angle ASME asperity height behavior boundary conditions calculated carbides coating contact area contact force contact pressure crankshaft curves damping decrease density dimensionless disk displacement dynamic effect elastic elastic-plastic elliptical experimental film thickness flat flow fluid flying height foil bearings fractal frequency friction coefficient friction force function Gaussian heat source hydrodynamic hysteresis increase interface journal bearing lubricant film Manuscript received maximum measured mechanical method microdents nondimensional normal load numerical obtained parameters particles plastic deformation Poisson's ratio predicted present pressure distribution radius ratio regime rolling rotation speed rotor rough surfaces sample seal shear stress shown in Fig shows simulation slider slip smooth solution squeeze film static friction stiffness surface roughness tangential load tape texture thermal tion Tribol Tribology values velocity viscosity von Mises stress Wang wear Young's modulus