Results 81 to 90 of about 7,402 (228)

CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACT

open access: yesJixie qiangdu, 2022
By combining the thermal elastohydrodynamic lubrication theory, thermoelastic mechanics theory and principle of heat-pressure conversion, a method was presented to solve the material thermal expansion coefficient of solid surface in the thermal ...
LU ZunYou
doaj  

Elastohydrodynamic principles applied to the design of helicopter components [PDF]

open access: yes
Elastohydrodynamic principles affecting the lubrication of transmission components are presented and discussed. Surface temperature of the transmission bearings and gears affect elastohydrodynamic film thickness.
Townsend, D. P.
core   +1 more source

The influence of heterogenous porosity on silicon nitride/steel wear in lubricated rolling contact [PDF]

open access: yes, 2000
Heterogeneous porosity is detected on the surface and subsurface of hot isostatically pressed (HIPed) silicon nitride spherical rolling elements. The extent of the localised porosity accounts for an area of 6% of the rolling element surface and 4% of the
Hadfield, M, Kang, J
core  

Thermal Surface Texture EHL Analysis of Water- lubricated Tenmat Bearing

open access: yesJixie chuandong, 2016
The elastohydrodynamic lubrication geometric model of surface texture bearing is set up. The numerical simulation of elastohydrodynamic lubrication property of water- lubricated tenmat bearing with circular dimple,rectangular dimple and triangular ...
Dong Ning   +3 more
doaj  

Elastohydrodynamic analysis of multistep texture effects and partial surface roughness on the tribological performance of steel journal bearings

open access: yesDiscover Applied Sciences
Journal bearings are critical components designed to facilitate the smooth and consistent rotation of shafts around specific axes. To meet the demands for efficient and cost-effective applications in high-speed machinery, it is imperative to enhance the ...
Muchammad Muchammad   +5 more
doaj   +1 more source

Ball Bearing Mechanics [PDF]

open access: yes
Load-deflection relationships for different types of elliptical contacts such as those found in a ball bearing are developed. Simplified expressions that allow quick calculations of deformation to be made simply from a knowledge of the applied load, the ...
Dowson, Duncan, Hamrock, Bernard J.
core   +1 more source

Modeling and Analysis of Thermal Elastohydrodynamic Lubrication Characteristic of Asymmetric Gear with a Small Number of Teeth

open access: yesJixie chuandong, 2016
The asymmetric gear with a small number of teeth has the advantages of small size,large transmission ratio and high load capacity and so on,it is more and more widely used in various fields.
Deng Xianzhi
doaj  

Effect of viscosity on rolling-element fatigue life at cryogenic temperature with fluorinated ether lubricants [PDF]

open access: yes
Rolling-element fatigue tests were conducted with 12.7-mm-(1/2-in.-) diameter AISI 52100 steel balls in the NASA five-ball fatigue tester, with a maximum hertz stress of 5500 mN/m2 (800 000 psi), a shaft speed of 4750 rpm, lubricant temperature of 200 K (
Dietrich, M. W., Zaretsky, E. V.
core   +1 more source

Influence of Fluctuation in Supply Pressure on the Elastohydrodynamic Lubrication(EHL) of Water-lubricated Hybrid Journal Bearing

open access: yesJixie chuandong, 2017
The model of water- lubricated hybrid journal bearings is established. The elastohydrodynamic lubrication of water- lubricated hybrid journal bearings are investigated with considering the fluctuation of supply pressure which due to the instability of ...
Zhang Tonggang   +3 more
doaj  

Effect of starvation on film thickness and traction under elastohydrodynamic rolling and sliding conditions [PDF]

open access: yes
Traction measurements under starved elastohydrodynamic conditions were obtained for a point-contact geometry. Simultaneous measurements of the film thickness and the location of the inlet lubricant boundary were made.
Wedeven, L. D.
core   +1 more source

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