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T. Füllenbach

Bio: T. Füllenbach is an academic researcher. The author has contributed to research in topics: Bearing (mechanical) & Lubrication. The author has an hindex of 2, co-authored 2 publications receiving 67 citations.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the impact of the piezoviscous effect and non-Newtonian lubricant properties on the friction power losses in journal bearings over a wide range of dynamic loads and shaft speeds was investigated.

57 citations

Journal ArticleDOI
01 Feb 2016
TL;DR: In this article, the authors employ a combined experimental and simulative approach for the study of mixed lubrication in dynamically loaded journal bearings. But their work is limited to a single journal bearing.
Abstract: For the study of mixed lubrication in dynamically loaded journal bearings, this paper employs a combined experimental and simulative approach. Extensive measurements on a journal bearing test rig w...

21 citations


Cited by
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Journal ArticleDOI
08 Mar 2016-Friction
TL;DR: In this article, the fundamentals of friction specific to the environments of engine components tribology are reviewed, together with discussions on the impact of developing vehicle powertrain technologies, surface and material technologies, as well as lubricant and additive technologies on promises of continuing friction and wear reduction trends.
Abstract: The increasing global environmental awareness, evidenced by recent worldwide calls for control of climate change and greenhouse emissions, has placed significant new technical mandates for automotives to improve engine efficiency, which is directly related to the production of carbon dioxide, a major greenhouse gas. Reduction of parasitic losses of the vehicle, powertrain and the engine systems is a key component of energy conservation. For engine efficiency improvement, various approaches include improvements in advanced combustion systems, component system design and handling—such as down-sizing, boosting, and electrification—as well as waste heat recovery systems etc. Among these approaches, engine friction reduction is a key and relatively cost-effective approach, which has been receiving significant attention from tribologists and lubricant-lubrication engineers alike. In this paper, the fundamentals of friction specific to the environments of engine components tribology are reviewed, together with discussions on the impact of developing vehicle powertrain technologies, surface and material technologies, as well as lubricant and additive technologies on promises of continuing friction and wear reduction trends. The international accords on climate change require further gains in fuel efficiency and energy sustainability from all industry sectors including those in the automotive and the broader internal combustion engine industries, and the latter encompass off-highway, power generation, marine, and rail industries as well. This paper focsuses on friction reduction in mainly automotive engines, however.

213 citations

Journal ArticleDOI
TL;DR: In this paper, a simulation approach for journal bearings operating from hydrodynamic to mixed lubrication regime where severe metal-metal contact occurs is presented, and the simulation results in the form of Stribeck curves provide a solid base to prove the isothermal elastohydrodynamic simulation approach.

91 citations

Journal ArticleDOI
Guo Xiang1, Yanfeng Han1, Jiaxu Wang1, Jiefu Wang1, Ni Xiaokang1 
TL;DR: In this article, a transient Mixed Lubrication-Wear coupling model (MLW coupling model) is developed to investigate the mixed lubrication and wear performances of journal bearings, and a wear experiment for journal bearing is performed to support the validity of the developed numerical model.

62 citations

Journal ArticleDOI
TL;DR: In this paper, a comprehensive model considering the kinematics of the bearing components, the Hertzian contact between the rolling elements and raceways, the interaction between the bearing and cage, the hydro-dynamic lubrication, and the thermal effects is introduced to study and forecast the over-skidding and skidding mechanisms.

51 citations

Journal ArticleDOI
TL;DR: In this article, the authors focus on the beginning phase of hydrodynamic journal bearing life time when the first adaption of the contacting surfaces occurs, known as running-in.

49 citations