[HTML][HTML] Fluxes in a full-flooded lubricated tapered roller bearing: particle image velocimetry measurements and computational fluid dynamics simulations

L Maccioni, VG Chernoray, F Concli - Tribology International, 2023 - Elsevier
The acquisition of complex fluxes inside a Tapered Roller Bearing (TRB) via Particle Image
Velocimetry (PIV) is an experimental challenge. This can be successfully performed by …

Churning power losses of a gearbox with spiral bevel geared transmission

X Hu, Y Jiang, C Luo, L Feng, Y Dai - Tribology International, 2019 - Elsevier
To predict the churning power losses in a gearbox with spiral bevel geared transmission,
based on the Computational Fluid Dynamics (CFD) method, a numerical simulation model …

Particle Image Velocimetry measurements inside a tapered roller bearing with an outer ring made of sapphire: Design and operation of an innovative test rig

L Maccioni, VG Chernoray, C Bohnert, F Concli - Tribology International, 2022 - Elsevier
Experimental studies on rolling-element bearing lubrication represent an ambitious
engineering challenge. In the present study, the design of a dedicated test rig to perform …

Application of an unstructured overset method for predicting the gear windage power losses

Y Dai, L Xu, X Zhu, B Ouyang - Engineering Applications of …, 2021 - Taylor & Francis
Enhancing the efficiency of gear systems is of significance to reduce fuel consumption and
overall weight. Windage power losses become prevailing in high-speed gear systems, such …

Influence of dynamic attitudes on oil supply for bearings and churning power losses in a splash lubricated spiral bevel gearbox

X Hu, A Wang, P Li, J Wang - Tribology International, 2021 - Elsevier
To study the influence of dynamic flight attitudes on the splash lubrication performance and
churning power losses of the intermediate spiral bevel gearbox in a helicopter, a three …

Influences of an oil guide device on splash lubrication performance in a spiral bevel gearbox

Y Jiang, X Hu, S Hong, P Li, M Wu - Tribology International, 2019 - Elsevier
The splash-lubricated intermediate gearbox of a helicopter is employed to investigate the
influence of an oil guide device on lubrication performance in spiral bevel geared …

Churning power loss of the intermediate gearbox in a helicopter under splash lubrication

F Lu, M Wang, H Bao, W Huang… - Proceedings of the …, 2022 - journals.sagepub.com
Based on computational fluid dynamics, a two-phase flow model was established to
calculate the churning power loss of the spiral bevel gears under splash lubrication. The …

On windage losses in high-speed pinion-gear pairs

M Ruzek, F Ville, P Velex, JB Boni… - Mechanism and Machine …, 2019 - Elsevier
This article deals with the Windage Power Losses (WPL) of pinion-gear pairs rotating in air.
The WPL of several disks, spur and helical gears have been measured using a dedicated …

Development of a quasi-analytical model to predict the windage power losses of a spiral bevel gear

X Zhu, Y Dai, F Ma - Tribology International, 2020 - Elsevier
Windage effects becomes prevailing in high speed areo-engine applications. The present
paper is to provide some theoretical findings to predict the windage power loss for spiral …

CFD study of oil-jet gear interaction flow phenomena in spur gears

MC Keller, C Kromer, L Cordes, C Schwitzke… - The Aeronautical …, 2020 - cambridge.org
Oil-jet lubrication and cooling of high-speed gears is frequently employed in aeronautical
systems, such as novel high-bypass civil aero engines based on the geared turbofan …