Journal ArticleDOI
An efficient and accurate calculation of traction in elastohydrodynamic contacts
Rajiv Dama,Liming Chang +1 more
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TLDR
In this article, the contact pressure and the film thickness are approximated by closed-form expressions while the temperature distribution is numerically calculated using a finite difference method, which largely eliminates the numerical instability problem that frequently occurs in the full numerical approach while yielding results much more accurate than those obtained by previous approximation methods.About:
This article is published in Wear.The article was published on 1997-05-01. It has received 10 citations till now. The article focuses on the topics: Traction (engineering) & Numerical stability.read more
Citations
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Journal ArticleDOI
Modeling and Analysis of the Meshing Losses of Involute Spur Gears in High-Speed and High-Load Conditions
TL;DR: In this paper, a first-principle based mathematical model is developed to analyze the meshing losses in involute spur gears operating in high-load and high-speed conditions, and the model is evaluated with precision experimental data.
Journal ArticleDOI
Investigation into the traction coefficient in elastohydrodynamic lubrication
Wang Yanqiu,Baotong Yang,Le Wang +2 more
TL;DR: In this article, the elastohydrodynamic traction coefficients of two Chinese aviation lubricating oils were investigated for various loads, rolling velocities, and lubricant inlet temperatures using a self-made test rig.
Journal ArticleDOI
A numerical study of fatigue life in non-Newtonian thermal EHL rolling–sliding contacts with spinning
TL;DR: In this article, the authors presented a study on fatigue life in non-Newtonian thermal elastohydrodynamic lubrication (TEHL) point contacts with spinning and showed that the effect of entraining velocity on the rolling contact fatigue (RCF) is closely related to ellipticity.
Journal ArticleDOI
A Transient Thermal Model for Mixed-Film Contacts
Xuejun Zhai,Liming Chang +1 more
TL;DR: In this paper, a thermal model for deterministic calculations of the contact temperatures in mixed-film lubrication is presented, which can be used to model other effects such as lubricant additives, asperity plastic deformation and surface coating.
Journal ArticleDOI
Coefficient of friction of a starved lubricated spur gear pair
TL;DR: In this paper, a thermal starved elastohydrodynamic lubrication model was developed to study the tribological performance of a spur gear pair under starved lubrication conditions and the coefficient of friction was evaluated by considering the variation of the curvature radius, the sliding/rolling motion, and the load distribution of gear tooth within the meshing period.
References
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Journal ArticleDOI
Shear behaviour of elastohydrodynamic oil films
K L Johnson,J. L. Tevaarwerk +1 more
TL;DR: In this article, a simple constitutive equation is proposed for the isothermal shear of lubricant films in rolling/sliding contacts. But the model may be described as nonlinear Maxwell, since it comprises nonlinear viscous flow superimposed on linear elastic strain.
Journal ArticleDOI
A Numerical Solution for the Pressure, Temperature, and Film Thickness Between Two Infinitely Long, Lubricated Rolling and Sliding Cylinders, Under Heavy Loads
H. S. Cheng,B. Sternlicht +1 more
Journal ArticleDOI
A Refined Solution to the Thermal-Elastohydrodynamic Lubrication of Rolling and Sliding Cylinders
TL;DR: In this article, the effect of the local pressure-temperature dependent viscosity, the compressibility effect of lubricant and the heat from compression of the lubricant were considered in the solution of the Reynolds and the energy equations.
Journal ArticleDOI
A Thermal Elastohydrodynamic Inlet Zone Analysis
L. E. Murch,William R. D. Wilson +1 more
Journal ArticleDOI
Thermal analysis of an Eyring fluid in elastohydrodynamic traction
K.L. Johnson,J.A. Greenwood +1 more
TL;DR: In this article, the authors derived a simple formula for the maximum traction coefficient in terms of the properties of the fluid (viscosity, pressure and temperature indices, and the representative stress τ0 and the operating conditions (contact pressure, speed and film thickness).
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Fast and reduced full-system finite element solution of elastohydrodynamic lubrication problems: Line contacts
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