grease flow
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2021 ◽  
Vol 153 ◽  
pp. 106638
Author(s):  
John Tichy ◽  
Marine Menut ◽  
Camella Oumahi ◽  
Sandrine Muller ◽  
Benyebka Bou-Saïd


2020 ◽  

Abstract The authors have requested that this preprint be withdrawn due to erroneous posting.



2020 ◽  
Author(s):  
Hua Liu ◽  
Florian Dangl ◽  
Thomas Lohner ◽  
Karsten Stahl

Abstract Gearbox lubrication plays a decisive role in both load capacity and efficiency. It is necessary for the formation of a lubricant film in tribological contacts, and for heat dissipation. Grease lubrication is often applied to gearboxes at a low operating speed and means that, for example, less effort is required in sealing design compared to oil lubrication. Over the years, the computational fluid dynamics (CFD) method has frequently been applied to support the lubrication-related design of gearboxes. However, very few studies have focused on grease lubrication. Whereas oil can generally be considered as Newtonian fluid, grease displays complex non-Newtonian flow behavior. In this study, the grease lubrication of a single-stage test gearbox is investigated by means of a finite-volume based CFD model. The numerical results on the grease flow show good accordance with high-speed camera recordings, and clearly display the lubrication mechanisms of “channeling” and “circulating”. These first results on grease flow simulation in gearboxes offer a starting point for further numerical studies.



Lubricants ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 10 ◽  
Author(s):  
Lars-Göran Westerberg ◽  
Josep Farré-Lladós ◽  
Chiranjit Sarkar ◽  
Jasmina Casals-Terré


2017 ◽  
Vol 65 (3) ◽  
Author(s):  
Lars G. Westerberg ◽  
Chiranjit Sarkar ◽  
Josep Farré Lladós ◽  
T. Staffan Lundström ◽  
Erik Höglund


2017 ◽  
Vol 61 (1) ◽  
pp. 144-156 ◽  
Author(s):  
Chiranjit Sarkar ◽  
Lars G. Westerberg ◽  
Erik Höglund ◽  
T. Staffan Lundström


2017 ◽  
Vol 61 (1) ◽  
pp. 31-40 ◽  
Author(s):  
Jan Duenas Dobrowolski ◽  
Marek Gawliński ◽  
Maciej Paszkowski ◽  
Lars G. Westerberg ◽  
Erik Höglund


Author(s):  
Luciano Frose ◽  
tiago cousseau


2016 ◽  
Vol 59 (3) ◽  
pp. 569-578 ◽  
Author(s):  
Jiabao Pan ◽  
Yanhai Cheng ◽  
Andrea Vacca ◽  
Jinyong Yang


2015 ◽  
Vol 669 ◽  
pp. 327-334 ◽  
Author(s):  
Juraj Ružbarský ◽  
Rastislav Majerník ◽  
Petr Hrabě ◽  
Petr Valášek

The aforementioned proves that the grease flow in mould treatment equipment can be regarded as a regulation system with the input quantity by medium pressure p1 above the grease level and with the output quantity by the grease flow speed.The utilization of treatment equipment for die casting of metal enhances both the working environment and work culture during die casting of metals. Application of grease flow regulation results in better repeatability of die casting cycle which positively influences the quality of castings.



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