Results 31 to 40 of about 113,445 (204)

Hydrodynamic and Thermal Processes in the Oil Cooler of the Lubrication System of Diesel Engines: Numerical Simulation

open access: yesМеханика машин, механизмов и материалов
This article presents the results that serve as a methodological basis for creating a digital twin of an oil cooler in a diesel engine lubrication system.
Igor A. Popov   +7 more
doaj   +1 more source

Dynamic Modeling and Analysis of Involute Spur Gear Transmission System Considering Friction and Multi-State Meshing Conditions

open access: yesXibei Gongye Daxue Xuebao, 2020
A dynamic model for an involute spur gear system involving multi-state mesh and friction is formulated to analyze the dynamic response and meshing state property under different lubrication conditions, such as an elastohydrodynamic and mixed lubrications

doaj   +1 more source

EXCAVATOR GROUP LUBRICATION SYSTEM LUBRICATOR WITH PNEUMATIC DRIVE

open access: yesModern Technologies and Scientific and Technological Progress, 2023
A group lubrication system of mechanical components for a walking excavator is proposed, the original design of a lubricator with a pneumatic drive and a controlled electro-magnetic valve is ...
Oleg Arsent'ev, Ivan Vlasenko
openaire   +1 more source

Convergence to the Reynolds approximation with a double effect of roughness [PDF]

open access: yes, 2010
We prove that the lubrication approximation is perturbed by a non-regular roughness of the boundary. We show how the flow may be accelerated using adequate rugosity profiles on the bottom.
Choquet, Catherine   +2 more
core   +3 more sources

Rheology near jamming - the influence of lubrication forces

open access: yes, 2014
We study, by computer simulations, the role of different dissipation forces on the rheological properties of highly-dense particle-laden flows. In particular, we are interested in the close-packing limit (jamming) and the question if "universal ...
Heussinger, Claus, Maiti, Moumita
core   +1 more source

Identification of Bearing Dynamic Parameters and Unbalanced Forces in a Flexible Rotor System Supported by Oil-Film Bearings and Active Magnetic Devices

open access: yesActuators, 2021
As the rotational speed of conventional rotor systems supported by oil-film bearings has increased, vibration problems such as oil whip and oil whirl have become apparent.
Yinsi Chen   +4 more
doaj   +1 more source

Positive commandable oiler for satellite bearing lubrication [PDF]

open access: yes, 1977
The results of a feasibility study showed that on-orbit commandable lubrication of ball bearings can be accomplished by direct oil application to the moving ball surfaces.
James, G. E.
core   +2 more sources

Propulsion Mechanisms for Leidenfrost Solids on Ratchets [PDF]

open access: yes, 2013
We propose a model for the propulsion of Leidenfrost solids on ratchets based on viscous drag due to the flow of evaporating vapor. The model assumes pressure-driven flow described by the Navier-Stokes equations and is mainly studied in lubrication ...
Baier, Tobias   +4 more
core   +5 more sources

Lubrication Pressure Injection System of Hot Rolling Line Valve Controlled Rolling

open access: yesChemical Engineering Transactions, 2018
The role of rolling lubrication technology in hot rolling production line and composition of rolling lubrication hydraulic injection system are described.
Yajun Liu, Lulu Shi, Zhongxu Lan
doaj   +1 more source

Breakup of diminutive Rayleigh jets [PDF]

open access: yes, 2010
Discharging a liquid from a nozzle at sufficient large velocity leads to a continuous jet that due to capillary forces breaks up into droplets. Here we investigate the formation of microdroplets from the breakup of micron-sized jets with ultra high-speed
Detlef Lohse   +7 more
core   +3 more sources

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