Skip navigation
Please use this identifier to cite or link to this item:http://essuir.sumdu.edu.ua/handle/123456789/16203
Title: Influence of temperature correlations on phase kinetics of boundary friction
Authors: Хоменко, Олексій Віталійович
Хоменко, Алексей Витальевич
Khomenko, Oleksii Vitaliiovych
Ляшенко, Яков Олександрович
Ляшенко, Яков Александрович
Liashenko, Yakov Oleksandrovych
Keywords: viscoelastic medium
phase portrait
stick-slip friction
Issue Year: 2007
Publisher: Львівський університет
Citation: A.V. Khomenko, I.A. Lyashenko, Influence of temperature correlations on phase kinetics of boundary friction // Вісник Львівського університету. – 2007. - Вип.40. - С.71-85
Abstract: Using the Lorenz model for viscoelastic medium approximation the melting of ultrathin lubricant film is studied by friction between atomically flat surfaces. The fluctuations of lubricant temperature are taken into account defined by Ornstein-Uhlenbeck process. The phase portraits are defined corresponding to the different regions of dynamic phase diagram and determining system’s kinetics. It is shown that the singular point, meeting the mode of dry friction, has indefinite character of stability. The other most probable steady-states of the system, corresponding to the stable and metastable sliding friction, are presented by the focus-type singular points in phase portraits. Consequently, the system can demonstrate damping oscillations near stable steady-states. The large extension of depicting trajectories near focuses along the axes of phase plane testifies to stability of sliding friction. Since maximums of distribution function, separated by the pronounced minimums of probability, correspond to the steady-state modes of friction, the transitions between them occur after large intervals of time. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/16203
URI: http://essuir.sumdu.edu.ua/handle/123456789/16203
Type: Article
Appears in Collections:Наукові видання (ЕлІТ)

Views
Other97
Canada1
China6
Germany8
EU1
France2
United Kingdom4
Iran1
Netherlands3
Russia18
Turkey3
Ukraine13
United States69
Downloads
Other191
China48
Germany2
France2
Russia1
United States4


Files in This Item:
File Description SizeFormatDownloads 
Khomenko_11.pdf590.21 kBAdobe PDF248Download
Show full item record Recommend this item


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.