Results 31 to 40 of about 5,438,556 (275)

Numerical Investigation of Oil–Air Flow Inside Tapered Roller Bearings with Oil Bath Lubrication [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Oil–air flow within an oil bath lubrication tapered roller bearing is essential for the lubrication and cooling of the bearing. In this paper, we develop a simulation model to investigate the flow field of tapered roller bearings with oil bath ...
Z. Wang   +5 more
doaj   +1 more source

Experimental Investigation on Churning Power Loss of Splash Lubricated Worm Gear [PDF]

open access: yes, 2023
Churning power losses are a complex phenomenon that produces critical power losses when considering the splash lubrication of gear units. This article describes the method to investigate the churning power loss in a worm gearbox.
Chothani, Hardik G., Maniya, Kalpesh D.
core   +1 more source

Lubrication mechanism in gearbox of high-speed railway trains

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2020
In this study, the moving particle semi-implicit (MPS) method is employed for numerical simulation of flow field in gearbox of high-speed railway trains so as to understand the lubrication mechanism and mode in the gearbox during high-speed operation.
Xingqiao DENG   +7 more
doaj   +1 more source

Innovative Meshing Strategies for Bearing Lubrication Simulations

open access: yesLubricants, 2020
Efficiency improvement is the new challenge in all fields of design. In this scenario the reduction of power losses is becoming more and more a main concern also in the design of power transmissions.
Franco Concli   +2 more
doaj   +1 more source

Experimental study on the influence of the rotating cylinder and circling pistons on churning losses in axial piston pumps [PDF]

open access: yes, 2017
Pressure and performance requirements of axial piston pumps and the proportion of churning losses in axial piston pumps increase significantly with increasing speed.
Ying Li   +9 more
core   +1 more source

Power loss analysis in altered tooth-sum spur gearing

open access: yesMATEC Web of Conferences, 2018
The main cause of power loss or dissipation of heat in case of meshed gears is due to friction existing between gear tooth mesh and is a major concern in low rotational speed gears, whereas in case of high operating speed the power loss taking place due ...
Sachidananda H. K.   +2 more
doaj   +2 more sources

Divergent genome evolution caused by regional variation in DNA gain and loss between human and mouse. [PDF]

open access: yesPLoS Computational Biology, 2018
The forces driving the accumulation and removal of non-coding DNA and ultimately the evolution of genome size in complex organisms are intimately linked to genome structure and organisation. Our analysis provides a novel method for capturing the regional
Reuben M Buckley   +2 more
doaj   +1 more source

Validation and application of a numerical approach for the estimation of drag and churning losses in high speed roller bearings

open access: yesApplied Thermal Engineering, 2019
A numerical-based model is proposed to estimate drag and churning losses in high speed roller bearings, which is caused by the rotation and translation of the rollers in the fluid environment inside the bearing.
Wen-Jun Gao   +3 more
semanticscholar   +1 more source

Thermal Performance Evaluation in Gas Turbine Aero Engines Accessory Gearbox

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2020
This paper presents a methodological approach for mathematical modelling and physics-based analysis of accessory gearbox (AGB) thermal behavior in gas turbine aero engines. The AGB structure, as one of the main sources of heat in gas turbine aero engines,
Soheil Jafari   +2 more
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

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