Results 21 to 30 of about 3,112 (223)

From splashing to bouncing: the influence of viscosity on the impact of suspension droplets on a solid surface

, 2016
We experimentally investigated the splashing of dense suspension droplets impacting a solid surface, extending prior work to the regime where the viscosity of the suspending liquid becomes a significant parameter. The overall behavior can be described by
Dodge, Kevin, Jaeger, Heinrich M., Peters, Ivo R., Schaarsberg, Martin H. Klein, Stern, Menachem, Zhang, Wendy W.   +5 more
core   +1 more source

The fluctuation energy balance in non-suspended fluid-mediated particle transport [PDF]

, 2015
Here we compare two extreme regimes of non-suspended fluid-mediated particle transport, transport in light and heavy fluids ("saltation" and "bedload", respectively), regarding their particle fluctuation energy balance. From direct numerical simulations,
Alexandre Valance, Ashida K., Bagnold R. A., Einstein H. A., Engelund F., Garcia M. H., Jasper F. Kok, Lettau K., Orencio Durán, Rijn L. C. V., Shao Y., Thomas Pähtz, Tuan-Duc Ho, Yalin M. S.   +13 more
core   +3 more sources

Study of Lubrication Performance and Churning Loss under Mixed Lubrication Mode in Gearbox

Lubricants
In order to clarify the effect of mixed lubrication methods on the oil flow and power loss of the gearbox, this study adopts a high-precision moving particle semi-implicit (MPS) method to investigate the lubrication of the gearbox under the joint ...
Lina Wang, Yi Liu, Kailin Zhang, Yuan Yao, Shuai Shao, Kuangzhou He   +5 more
doaj   +1 more source

Analysis of the efficiency of wind turbine gearboxes using the temperature variable [PDF]

, 2019
The aim of this paper is to evaluate how lubricant selection affects gearbox efficiency and overall energy production by analysing real data from wind farms, monitored and controlled by a Supervisory Control and Data Acquisition (SCADA system).
Galego, P., González-Gorbeña Eisenmann, Eduardo, Pacheco, André, Sequeira, Claudia   +3 more
core   +1 more source

Influence of the Lubricant Temperature of Splashed Lubricated Worm Gearbox on Churning Power Losses

ITEGAM- Journal of Engineering and Technology for Industrial Applications (ITEGAM-JETIA
The primary goal of lubricating a worm gearbox is to encourage sliding between teeth, which lowers the coefficient of friction and regulates the temperature rise brought on by rolling and sliding friction. Due to both non-load-dependent and load-dependent power losses, the worm gearbox has a relatively poor efficiency.
Hardik G Chothani, D.J. Marsonia, N.N. Jadeda, S.H. Zala   +3 more
openaire   +2 more sources

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

Advanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini, Lu Fang, Jacob Bons, Mohammad Humaun Kabir, Evan Johnson, Joe Kosmoski, Hong Liang   +6 more
wiley   +1 more source

Initial surface deformations during impact on a liquid pool [PDF]

, 2015
A tiny air bubble can be entrapped at the bottom of a solid sphere that impacts onto a liquid pool. The bubble forms due to the deformation of the liquid surface by a local pressure buildup inside the surrounding gas, as also observed during the impact ...
Bouwhuis, Wilco, Hendrix, Maurice H. W., Snoeijer, Jacco H., van der Meer, Devaraj   +3 more
core   +5 more sources

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Study of lubricant jet flow phenomena in spur gears: Out of mesh condition [PDF]

, 1983
The penetration depth onto the tooth flank of a jet of oil at different velocities pointed at the pitch line on the outgoing side of mesh was determined. The analysis determines the impingement depth for both the gear and the pinion.
Akin, L. S., Townsend, D. P.
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source