Buscar
Mostrando ítems 1-10 de 252
A Mass-Conserving Algorithm for Dynamical Lubrication Problems With Cavitation
(ASME-AMER SOC MECHANICAL ENG, 2009)
A numerical algorithm for fully dynamical lubrication problems based on the Elrod-Adams formulation of the Reynolds equation with mass-conserving boundary conditions is described. A simple but effective relaxation scheme ...
Friction characterization when combining laser surface texturing and graphite-based lubricants
(ELSEVIER, 2020)
The present work analyzes the friction capabilities at room temperature of three types of lubricants (denoted as A, B and C) with a graphite concentration of 5%. To do that, the standard pin -on disc test is deployed to ...
Analytical–numerical modeling of journal bearings with non-Newtonian fluids and cavitation effects
(2021-12-01)
The search for better performance in internal combustion engines and machines which use hydrodynamic journal bearings has motivated recent studies in lubrication field, with the application of computational fluid dynamics. ...
Comparison of journal orbits under hydrodynamic lubrication regime for traditional and Newton-Euler loads in combustion engines
(Latin Amer J Solids StructuresSao PauloBrasil, 2009)
Dynamic analysis of a lubricated planar slider-crank mechanism considering friction and Hertz contact effects
(Pergamon-elsevier Science LtdOxfordInglaterra, 2014)
Control system design for flexible rotors supported by actively lubricated bearings
(SAGE PUBLICATIONS LTD, 2008)
This article presents a methodology for calculating the gains of an output feedback controller for active vibration control of flexible rotors. The methodology is based on modal reduction. The proportional and derivative ...
Lubrificação sólida em meio fluidoSolid lubrication in fluid environment
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em Engenharia MecânicaEngenhariasUFU, 2016)
Hydrodynamic bearings modeling with alternate motion
(Pergamon-elsevier Science LtdOxfordInglaterra, 2010)
NMR relaxometry analysis of molecular degradation in internal combustion engine lubricants
(John Wiley & Sons Ltd, 2021-04)
A set of experimental techniques headed by proton fast field-cycling nuclear magnetic resonance (1HFFC-NMR) were used to analyze the effects of degradation of lubricant oil used in an internal combustion engine (ICE). Its ...
Design, construction and evaluation of a device for the manufacture of ferrogram for analytical ferrography
(2022-03-01)
The dynamism of the reliability of machines and equipment has the objective of availability, leading to the development of several techniques of predictive maintenance, to define the ideal point for the intervention. Among ...