Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Frances E. Lockwood"'
Publikováno v:
Tribology Transactions. 64:721-729
Pour point, or the temperature below which a fluid ceases to flow, is an important lubricant property. A molecular-dynamics-based approach is developed to explore and identify the pour points of a ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9649d24ee9cfe36e733a7ac399e0eefa
https://doi.org/10.1080/10402004.2021.1910391
https://doi.org/10.1080/10402004.2021.1910391
Autor:
Joseph F. Shore, Athanasios I. Christodoulias, Anant S. Kolekar, Frances E. Lockwood, Amir Kadiric
Publikováno v:
SAE Technical Paper Series.
We present a new method to predict the power losses in electric vehicle (EV) transmission systems using a thermally coupled gearbox efficiency model. Friction losses in gear teeth contacts are predicted using an iterative procedure to account for the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d45afcac58dad13f2f1ac1704478429
https://doi.org/10.4271/2022-01-5026
https://doi.org/10.4271/2022-01-5026
Publikováno v:
Tribology International. 134:328-334
The lubricants for traction-continuously variable transmissions (t-CVT) could generate high traction under a high pressure, which requires the design of a special class of base stock molecules. This paper reports the development of a model, based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f39bb2c847a65f335feb3a3a6a15421c
https://doi.org/10.1016/j.triboint.2019.02.013
https://doi.org/10.1016/j.triboint.2019.02.013
Autor:
Ali Erdemir, Q. Jane Wang, Tobin J. Marks, Aaron Greco, Blake Johnson, Xingliang He, Frances E. Lockwood, Ning Ren, Zhong Liu, Michael Desanker, Yip-Wah Chung, Massimiliano Delferro, Jie Lu
Publikováno v:
Tribology Letters. 66
The demand for increased energy efficiency continuously drives the development of new lubricants. Here we report the design and synthesis of hexahydrotriazine, triazine, and cyclen derivatives as friction modifiers (FMs) for enhanced fuel economy. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d26acfe7e9bb39f53980ddaf0396b90c
https://doi.org/10.1007/s11249-018-0996-z
https://doi.org/10.1007/s11249-018-0996-z
Publikováno v:
Tribology International. 59:203-209
The final drive unit in road vehicles, such as medium and heavy trucks, and four-wheel-drive and rear-wheel-drive passenger cars, usually consists of a hypoid or spiral bevel geared transmission and differential, housed in a self-contained, dip-lubri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5e9f458381102eacc51d46011d047a7
https://doi.org/10.1016/j.triboint.2012.03.013
https://doi.org/10.1016/j.triboint.2012.03.013
Autor:
Thomas J. Zolper, Frances E. Lockwood, Paul Shiller, Yip-Wah Chung, Massimiliano Delferro, Ali Erdemir, Gary L. Doll, He Yifeng, Aaron Greco, Babak LotfizadehDehkordi, Tobin J. Marks, Qian Wang, Ning Ren
Publikováno v:
Journal of Tribology. 139
This study investigates the rheological properties, elastohydrodynamic (EHD) film-forming capability, and friction coefficients of low molecular mass poly-α-olefin (PAO) base stocks with varying contents of high molecular mass olefin copolymers (OCP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::283b79868b4b251f933a18f4fe7cff05
https://doi.org/10.1115/1.4033716
https://doi.org/10.1115/1.4033716
Autor:
Frances E. Lockwood, Ewa A. Bardasz, Elizabeth A. Schiferl, Jonathan S. Vilardo, Thomas T. Curtis, Timothy Lee Caudill, Thomas R. Smith
Publikováno v:
SAE International Journal of Fuels and Lubricants. 3:925-937
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a38c6bcf52e6f9a7a30315ab2ede456
https://doi.org/10.4271/2010-01-2257
https://doi.org/10.4271/2010-01-2257
Publikováno v:
Tribology Transactions. 50:407-414
It has been recognized for about 50 years that the addition of polymer to motor oil will result in shear-dependent viscosity at relatively low shear stress. This shear-thinning can be shown to reduce the elastohydrodynamic film thickness and there ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14a5c0b061f87f3def4404092f75e9ed
https://doi.org/10.1080/10402000701429279
https://doi.org/10.1080/10402000701429279
Publikováno v:
Tribology Letters. 60
The pressure–viscosity coefficient (the α value), which represents the variation of viscosity as a function of pressure, is an important parameter for elastohydrodynamic lubrication analyses. The properties of hydrocarbons in the C20–C40 mass ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd04194ce8da310140c276c79d031bd9
https://doi.org/10.1007/s11249-015-0610-6
https://doi.org/10.1007/s11249-015-0610-6
Publikováno v:
The Journal of Chemical Physics. 147:084904
The shear thinning of a lubricant significantly affects lubrication film generation at high shear rates. The critical shear rate, defined at the onset of shear thinning, marks the transition of lubricant behaviors. It is challenging to capture the en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa6f458e4f6c5db4b6ea136c72420af6
https://doi.org/10.1063/1.4986552
https://doi.org/10.1063/1.4986552