摘要:

A numerical solution of the elastohydrodynamic lubrication problem for pure rolling with non-Newtonian lubricants is outlined. The non-Newtonian rheological model used is a modified power-law, τ = K · γn. At low shear rate, γ < γbthe lubricant is Newtonian, but when γ > γbthe lubricant becomes non-Newtonian, τ = K · γn. At high shear rate (γ → ∞) the lubricant becomes Newtonian again with the same viscosity as the base lubricant.

ISSN:0569-8197    

DOI:10.1080/05698198708981785

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

A systematic study has been made to evaluate the lubricating properties of metal-organic chelate structures containing tin bonded to aliphatic dicarboxylic acids. These tin compounds were synthesized find used, as additives in paraffin oil. Their tribological behavior was investigated on three different sliding test machines.

ISSN:0569-8197    

DOI:10.1080/05698198708981786

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

In this review the effect of lubrication on the tribological behavior of miniature polymeric systems is discussed. Lubrication of miniature polymeric systems is a very effective way to improve their tribological properties, especially to reduce wear. The oil should wet and not dissolve the polymer. The migration of oil from the miniature polymeric systems needs the use of epilames (anti-migration coatings).

ISSN:0569-8197    

DOI:10.1080/05698198708981787

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

Kinetic equations for transition temperatures of lubricants under boundary lubrication are suggested. These equations are based on kinetic characteristics which are determined from laboratory test data and confirmed by experiments which have been carried out on different test machines.Presented as an American Society of Lubrication Engineers paper at the ASME/ASLE Tribology Conference in Pittsburgh, Pennsylvania, October 20–22, 1986

ISSN:0569-8197    

DOI:10.1080/05698198708981788

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

A theoretical study of surface roughness effects on the elastohydrodynamically lubricated point contact is presented. The analysis is based on a Reynolds equation modified through flow factors determined by the statistical properties of the surface topography. An improved elastic deformation calculation is incorporated into the EHL numerical scheme. This revised numerical technique is used to get the complete solution for the rough elastohydrodynamic point contact, which takes account of side leakage. The system that has been investigated is an isothermal, Newtonian fluid with Roelands viscosity entrained in pure rolling. Results are presented demonstrating the effect of surface roughness parameters on film shape, pressure distribution, and rolling friction in a ball bearing.Presented at the 42nd Annual Meeting in Anaheim, California May 11–14, 1987

ISSN:0569-8197    

DOI:10.1080/05698198708981789

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

Lyotropic liquid crystals of triethanolammonium oleate in several nonaqueous solvents were prepared and characterized. Their rheology and elastohydrodynamic contact behavior were investigated. Under the conditions studied, they are non-Newtonian, shear thinning fluids whose behavior up to shear rates of 2500 s−1can be described by a rheological equation.

ISSN:0569-8197    

DOI:10.1080/05698198708981790

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor