...Motohiro Kaneta Based on a fully flooded transient non-Newtonian thermoelastic fluid lubrication analysis of representative engineering ceramics and steels with different thermal conductivities and surface roughness, it is found that the material combination that causes the reduction of the maximum...

..., it has been clarified, using a fully flooded non-Newtonian thermal elastohydrodynamic lubrication analysis in contact between materials with different thermal conductivities and roughness asperity heights, which surface velocity should be increased and which roughness asperity height should be lowered...

...Motohiro Kaneta; Kenji Matsuda; Hiroshi Nishikawa The effects of thermal conductivity, heat capacity, thermal inertia, and slide-roll ratio (SRR) on point elastohydrodynamic lubrication (EHL) are discussed with engineering ceramics and steel by a non-Newtonian thermal EHL analysis. When the thermal...

... in thermal conductivity between contact materials, and the other is caused by the contact pressure between the asperities through the oil film. Email: kaneta@fme.vutbr.cz Email: matsuda.kenji792@mail.kyutech.jp Email: nishikawa.hiroshi908@mail.kyutech.jp Contributed by the Tribology...

...Motohiro Kaneta; Kenji Matsuda; Jing Wang; Peiran Yang In order to clarify the effect of thermal conductivity on non-Newtonian thermal elastohydrodynamic lubrication (EHL) in the point contact with longitudinal roughness on one surface or on both surfaces, numerical calculations are carried out...

... of the surface with low thermal conductivity should be faster than that with high thermal conductivity, and the wavelengths of micro-dimples in the direction of motion on both surfaces should be different. Fig. 1 Schematic of contact surfaces with micro-dimples Fig. 2 Arrangement of micro-dimples...

..., the possibility being that new lubricant concepts might emerge. Thus, the rheological behavior and thermal characteristics of the mixture (density, specific heat, and thermal conductivity) were numerically modeled and simulations of bearings operating with this mixture were performed. The lubrication...

...Bikramjit Basu; Amartya Mukhopadhyay; Ankit Mishra; J. Sarkar The thermal conductivity of a metallic test piece is one of the principal parameters that influence the temperature buildup at tribocontacts and this normally plays an important role in the unlubricated dry sliding wear of metallic...

... dependence of lubricant thermal conductivity, which need to be incorporated in the future. 07 07 2008 20 09 2008 04 12 2008 compressibility elastodynamics equations of state hydrodynamics lubricants lubrication thermal conductivity viscosity EHL traction free volume...

...M. Kaneta; T. Shigeta; P. Yang The effects of compressive and viscous heatings of lubricating fluid on the traction force and film thickness are investigated under low slide-roll ratios by thermal EHL analyses based on the Newtonian and Eyring fluid models. The effects of the thermal conductivity...

... of our purposed model. Theoretical predictions indicate that the temperature rise of abrasive-workpiece contact increases with an increase in particle size and density of particles, hardness of workpiece, hardness of pad, and with a decrease in thermal conductivity of workpiece. The temperature of pad...

...E. van der Heide; D. J. Schipper The influence of surface roughness and thermal conductivity on seizure in lubricated contacts is described in this work by quantifying the action of individual asperities in relation to local surface temperature rise. Application of the model to a contact situation...

...M. Kaneta; P. Yang With actual and virtual materials, the effects of the thermal conductivity of contacting surfaces on EHL are investigated through experimental analyses using the optical interferometry technique and the Newtonian thermal EHL analyses in consideration of the variation of oil...

...M. Kaneta; R. Kawashima; S. Masuda; H. Nishikawa; P. Yang; J. Wang The effects of thermal conductivity and kinematics of contacting surfaces and viscosity-pressure coefficient on the film thickness in an elliptical contact under pure sliding conditions in which lubricant entrainment vector...

... received by the Tribology Division September 3, 1999; revised manuscript received April 17, 2000. Associate Technical Editor: Y. W. Chung. 03 September 1999 17 April 2000 mechanical contact tribology coatings elasticity lubrication numerical analysis thermal conductivity...

...) are used. Comparative measurements were taken with steel disks made of 42CrMo4. Of primary importance are the material parameters Young’s modulus and thermal conductivity. The experimental variables pressure, temperature and oil film thickness in the EHD contact of a two disk test rig were measured...

... received January 27, 2000. Associate Technical Editor: M. D. Bryant. 28 September 1999 27 January 2000 mechanical contact continuum mechanics tribology rolling friction sliding friction wear thermal conductivity Laplace transforms Rolling/Sliding Contact Convective...

...J. Y. Jang; M. M. Khonsari, Dow Chemical Endowed Chair and Professor, An idealized model consisting of a surface with high thermal conductivity separated by a film of liquid lubricant from a rough surface with low thermal conductivity is developed to study thermoelastic instability. The governing...