...Mingyu Zhang; Minglu Yao; Jing Wang; Yong Wan To improve mechanical efficiency, the tribological performance of short period intermittent motion needs to be investigated. Based on the theory of thermal elastohydrodynamic lubrication (EHL) and considering the influences of rough surface, a mixed-EHL...

.... The experiment determines that the state of the phase before entering the elastohydrodynamic lubrication (EHL) contact is water-in-oil. For the reciprocating motion and oscillation, the effects of the amount of free water and the length of the motion stroke are discussed in detail. It is found...

...W. M. Hannon; C. H. Hager; R. J. Sadinski Pressure-viscosity coefficients (PVC) are used in the predictions of elastohydrodynamic lubricated (EHL) componentry. These coefficients are obtained by either viscometry or optical EHL inference. The literature indicates that each method differs in its...

...J. S. Issa; W. Habchi The current work investigates the influence of real lubricant density–pressure behavior on the dynamic response of elastohydrodynamic lubricated conjunctions. Such a response is often based on a nonrealistic universal equation of state, despite longstanding evidence of its...

... magnetic field volume concentration negative viscosity ferrohydrodynamics coatings elastohydrodynamic lubrication hard disk drives lubricants magnetic bearings seals References [1] Rosensweig , R. E. , 1985 , Ferrohydrodynamics , Cambridge University Press , Cambridge...

... reducer, thorough comprehension of the reducer’s tribological behavior is required. To this end, the elastohydrodynamic lubrication (EHL) theory, for the first time, is used to reveal the tribological behavior of the planer ball reducer, and the equations of kinematics, EHL model, and theoretical...

... elastohydrodynamic lubrication (EHL) condition. The nonuniformly distributed gear cracks on external and internal gear pairs are comprehensively modeled and analyzed, which is rarely investigated in previous studies. Moreover, the influence of crack propagation conditions on the meshing stiffness of the planetary...

... of T ribology . 12 04 2022 16 07 2022 23 07 2022 04 11 2022 elastohydrodynamic lubrication fluid–structure interaction cavitation asperity contact coupled computing cavitation fluid film lubrication hydrodynamic lubrication surface roughness and asperities...

... and the traction force. In order to account for the increase in temperature, traction calculations can be substituted into thermal elastohydrodynamic lubrication (EHL) equations to simultaneously calculate the oil film shape, pressure distribution, and traction force [ 12 ]. However, this method is highly...

... potential energy П c i = contact energy of i 0 contact nodes pair ω = rotor speed (rad/s) multilayer foil thrust bearing numerical model bearing load capacity structural optimization bearing design and technology contact mechanics elastohydrodynamic lubrication gas (air...

...Jiri Krupka; Krystof Dockal; Ivan Krupka; Martin Hartl The relevance of the compliant contacts operated in elastohydrodynamic lubrication regime has increased during the last decades. Polymers and elastomers have been preferred because of their low-cost production or their tribological performance...

... to the comprehensive design and performance of tribological components. Simple elastohydrodynamic lubrication (EHL) models require knowledge of the pressure and temperature dependence of viscosity. Inputs to lubricant film thickness calculations, such as those published by Dowson and Higginson [ 1 ], Hamrock...

... lubrication elastohydrodynamic lubrication lubricant degradation rolling element bearings rolling fatigue surface fatigue and fretting surface roughness and asperities wear mechanisms References [1] Schatzbe , P. , and Felsen , I. M. , 1968 , “ Effects of Water and Oxygen...

... at the contact center ( ρ ¯ c = ρ c / ρ 0 ) (kg/m 3 ) Ω = spin rotation velocity (rad/s) spinning starvation film thickness elastohydrodynamic lubrication point contact experimental approach rolling element bearings References [1] Wedeven...

...Wyatt Peterson; Kushagra Singh; Farshid Sadeghi Elastohydrodynamically lubricated point contact was investigated using a two-way partitioned fluid–solid interaction (FSI) model. ansys Mechanical finite element modeling software was used to compute elastic (and plastic) deformation of the solid...

... = lubricant density (kg/m 3 ) ϕ = circumferential film coordinate (deg) Φ = attitude angle of resultant load w r (deg) ω = shaft angular rotation speed (rpm) cavitation elastohydrodynamic lubrication fluid film lubrication journal bearings machine learning neural...

...Gang Liu; Ming Li Water-lubricated rubber bearings (WLRBs) are widely used in the propulsion systems of ships and military crafts. Based on the mass conservation boundary condition, the elastohydrodynamic lubrication model of WLRBs is established after considering the elastic deformation...

... (FEA) reveals that the proposed method can reduce the calculation times by more than 98%. The paper introduces the thermoelasticity effects into thermal-elastohydrodynamic lubrication (TEHL) modeling of line contact problems. The analysis reveals that including thermoelastic deformations changes...

... elastohydrodynamic lubrication lubricants rolling element bearings In the present design of refrigeration compressors, components such as gears, bearings, and screws are cooled and lubricated by a dedicated lubrication circuit [ 1 ]. In practical applications, the compressor's lubricant needs...

... sliding ratio (LSR) gear pair whose tooth profile is constructed by a cubic function, a three-dimensional (3D) mixed elastohydrodynamic lubrication (EHL) line contact model was established with consideration of the effect of tooth profile geometry, transient motion characteristics, load distribution...