...Shuyun Jiang; Yongjin Zhu Axial static stiffness is a main technical indicator for the ball screw feed drive system, and the elastic deformation outside the Hertz contact zone of the system affects its axial static stiffness. However, the influence of elastic deformation outside the Hertz contact...

.... 11 , the dynamic Hertz solution [( 30 )] is also shown, indicated by the dashed line and assuming only elastic deformation. We observe that good correlation between the numerical results and the dynamic Hertz solution exists at dimensionless vertical initial velocities V y / V y_c  < 50, i.e...

... Based Method for Solving Rough Surface Contact ,” ASME J. Trib. , 119 ( 3 ), pp. 481 – 485 10.1115/1.2833523 . Concerning the application to the ElastoHydrodynamic Lubrication (EHL) problem, the strong coupling between the fluid flow and the elastic deformation imposes a similar precision...

... sectional shape. Contact pressure between the journal surfaces and the bearing surfaces with microgroove was calculated using the Hertzian contact model and the effects of elastic deformation of bearing surface due to hydrodynamic and contact pressures were considered. A numerical calculation model...

... by applying the simple model based on the single main bearing housing to calculate the elastic deformation of main bearing surface. A crankshaft bearing is one of the important components for internal combustion engine. The good lubrication performance of crankshaft bearing is very important to achieve...

... 1 + K 0 ′ ln [ 1 + p h K 0 ( 1 + K 0 ′ ) ] For polydimethylsiloxane, the constants are K 0 ′ = 10.19 and K 0 = 0.85   GPa ( 7 ). The elastic deformation can be determined by assuming that the pressure is described...

..., meanwhile, decreases the critical contact area, so those microcontacts yield elastic deformation, which, in turn, increases the normal and tangential contact stiffnesses; the contact stiffness increases with increasing contact load due to the increase in the real contact area. The contact stiffness follows...

... to evaluate the elastic deformation of either the spherical or nonspherical bearing surfaces. A fixed-tracked method was also developed to simulate the complex morphology introduced by moving the interface of the nonspherical bearing surfaces. The general methodology for the nonspherical bearing was first...

...Tomoya Sakaguchi; Kazuyoshi Harada In order to investigate cage stress in tapered roller bearings, a dynamic analysis tool considering both the six degrees of freedom of motion of the rollers and cage and the elastic deformation of the cage was developed. Cage elastic deformation is equipped using...

... continuous piecewise smoothly quadratic (Q block). The undeformed elastic blocks are spatially symmetric; their elastic deformation is simplified by taking it to be affine, with the degree of shape asymmetry linearly increasing with shear stress. We find that the V block exhibits nonzero Coulomb-type...

...K. Willner The effect of dry metallic friction can be attributed to two major mechanisms: adhesion and ploughing. While ploughing is related to severe wear and degradation, adhesion can be connected to pure elastic deformations of the contacting bodies and is thus the predominant mechanism...

...Dong-Hyun Lee; Young-Cheol Kim; Kyung-Woong Kim To obtain the foil bearing characteristics, the fluid film pressure must be coupled with the elastic deformation of the foil structure. However, all of the structural models thus far have simplified the foil structure without consideration of its...

...W. Habchi; D. Eyheramendy; P. Vergne; G. Morales-Espejel The solution of the elastohydrodynamic lubrication (EHL) problem involves the simultaneous resolution of the hydrodynamic (Reynolds equation) and elastic problems (elastic deformation of the contacting surfaces). Up to now, most...

... in this regime of elastic deformations. At higher normal loads ( P * > 50 ) , corresponding to the elastic-plastic regime of deformations, the static friction coefficient is not affected by surface roughness and seems to follow a universal law as predicted theoretically by Brizmer et al. in Ref...

.... The predicted three-dimensional film distributions ( a ), the cross-sectional film profiles ( b ), and pressure distributions ( c ) at the instant t = 0.01 s 08 12 2006 12 09 2007 17 12 2007 biomechanics biomedical materials bone elastic deformation elastodynamics...

... 12 2006 10 06 2007 elastic deformation elastoplasticity finite element analysis plastic deformation ellipticity of ellipsoid ellipticity of contact area microcontact elastic-plastic deformation regime Tribological problems arising from the points of contact between...

... Institute of Science, Bangalore. 28 03 2006 20 05 2007 aluminium alloys elastic deformation eutectic alloys lubrication plastic flow silicon alloys voids (solid) wear Ultramild wear aluminium-silicon alloy elastic shakedown wear transition In an internal...

...Yuchuan Liu; W. Wayne Chen; Dong Zhu; Shuangbiao Liu; Q. Jane Wang An elastohydrodynamic lubrication (EHL) model for coated surfaces in point contacts has been developed by combining the elastic deformation formulation for the coated surfaces with an EHL model. Inverse fast Fourier transform (IFFT...

... and elastic deformation. However, wear has rarely been incorporated into the numerical models used as predictive tools in engineering practice. This paper presents a numerical approach to simulate the wear process based on the deterministic mixed elastohydrodynamic lubrication (EHL) model developed...

... , “ An Asperity Microcontact Model Incorporating the Transition from Elastic Deformation to Fully Plastic Flow ,” J. Tribol. 0742-4787 10.1115/1.555332 , 122 , pp. 86 – 93 . Jacq , C. , Nelias , D. , Lormand , G. , and Girodin , D. , 2003 , “ Development of a Three-Dimensional Semi...