Ìåæäóíàðîäíûé íàó÷íûé æóðíàë
Èçäàòåëü: Èíñòèòóò ìåõàíèêè ìåòàëëîïîëèìåðíûõ ñèñòåì èì. Â.À. Áåëîãî ÍÀÍ Áåëàðóñè, Ãîìåëü, Áåëàðóñü
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ÒÐÅÍÈÅ È ÈÇÍÎÑ Ìåæäóíàðîäíûé íàó÷íûé æóðíàë Èçäàòåëü: Èíñòèòóò ìåõàíèêè ìåòàëëîïîëèìåðíûõ ñèñòåì èì. Â.À. Áåëîãî ÍÀÍ Áåëàðóñè, Ãîìåëü, Áåëàðóñü |
Summary: A periodic contact problem is analyzed when the system of elliptically shaped dies is indented into an elastic layer. It is assumed that the contact spots are small compared with the thickness of the layer. An approximate solution is obtained which has an asymptotic fidelity.
Pavlov V. G., Orlov A. V.
Calculation of wear of a rolling bearing. pp. 366--371
Summary: The wear of a rolling bearing is calculated using the example of a ball bearing. The method is based on the contact problem for intricately shaped bodies with the allowance for changes in the surface geometry induced by wear (the model of H. Heathcote) for determination of slippage between contacting bodies and the law of power behavior of the wear rate of materials as a function of contact pressure.
Tikhomirov V. P., Shalimov P. Yu.
Cluster analysis. Choice of a material with given tribological properties. pp. 372--378
Summary: The principles of a choice of a material with given tribological properties based on cluster analysis and neural modeling are considered. The example of application neurocomputing technology is given at a choice a frictional composite material for projected unit of friction.
Mozharovskii V. V., Pleskachevskii Yu. M., Babich S. Yu., Berezovskaya E. M.
The stress-strain state of composite coatings on tribological systems. pp. 379--385
Summary: Mathematical models are proposed to determine the stress-strain state of coatings on tribological systems from composite materials with different arrangements of fibers and having an intricate behavior. A method is proposed to determine the parameters of interactions between parts having non-homogeneous coatings on friction units.
Zharov I. A.
Mechanisms of wear of rollers from wheel and rail steels. pp. 386--393
Summary: Models of mechanisms of wear of rollers are proposed. It is demonstrated that they correlate well with the experiments accomplished by the author and by other reported experimental results.
Butov E. S., Butakova M. A., Butov A. E.
Optimization of the geometry of engagement of a heavily loaded tooth gear using the ciretira of wear and score resistance of teeth. pp. 394--399
Summary: Problems how to develop methods of optimizing the geometry of engagement of tooth gears are discussed and how the relevant application software is to developed. The mean integral friction paths of gear teeth and the wheel, the coefficients of losses for friction have been assumed as the basic criteria. Necessary limitations have been assumed for the remaining criteria of performance of gears. The new methods have been validated with traction tooth gears of mass-produced and future mainline electric trains.
Markov D. P.
Tribofatigue of wheel-rail steels. pp. 400--409
Summary: Types of contact fatigue damage of wheels and rails and the regularities which cause it are considered. Physical modeling of contact fatigue and laboratory simulation are discussed, primarily in relation to the application of various lubricating materials.
Zharin A. L., Shipitsa N. A., Saroka D. I.
Determination of the characteristics of fatigue failure of materials during sliding friction. Part 1. Evaluation of methods. pp. 410--414
Summary: The available methods of determination of friction fatigue are validated. It is demonstrated that no statistical studies of the parameters characterizing the process of fatigue failure during sliding friction have been practically performed so far. it is an essential drawback of all these methods. These studies are highly essential to evaluate the characteristics of fatigue failure in friction.
Markova L. V., Myshkin N. K., Kong H., Semenyuk M. S., Yun E-S., Pinchuk E. L.
Optic ferroanalyzer and its application for diagnostics of wear of friction units. pp. 415--422
Summary: The principle of functioning of the optic ferroanalyzer is described which has been developed jointly by the Institute of Metal Polymer Research Institute of the Belorusian National Academy of Sciences and the Korean Institute of Science and Technology. The results of laboratory validation of the performance of the ferroanalyzer and examples of its application for diagnostics of the conditions of real friction units show that it is suitable to rate the condition of friction units, the extent of wear and the performance of oils. The latter are rated by the changes in the optical density by analyzing the debris which lubricating materials may contain. It is suitable for service stations and industrial laboratories as a tool built into the oil circulating lines in the equipment.
Andreev M. A., Kuznetsova T. A., Markov L. V., Chekan V. A.
Wear resistance of composite chrome coatings with additives of ultradspersed diamonds. pp. 423--428
Summary: The wear resistance of fine chrome-based coatings with added ultradispersed diamonds (UDD) has been investigated when the coatings are applied by ion-plasma sputtering in the vacuum. Relationships between the friction coefficient and the path of the indentor, the geometrical parameters of the friction track and the surface morphology have been examined. It is demonstrated that introduction of UDD (up to 5 mass %) into the target produces a surface structure which best resists wear.
Pamfilov E. A., Buglaev A. M.
Improving wear resistance of surface of hard alloy parts by diamond polishing. pp. 429--434
Summary: Problems how diamond polishing improves the surface characteristics and the wear resistance of hard-alloy parts are analyzed.
Krasnov A. P., Fedorova L. S., Afonicheva O. V., Papkov V. S., Buzin M. I., Volkov I. O.
The tribochemical activity of polyacrylonitrile in compositions with solid greases. pp. 435--440
Summary: Polyacrylonitrile (PAN) is characterized by a high and unstable friction coefficient both at the room and elevated temperatures due to the evolution of chemical reactions on the surface. Fillers (graphite, MoS2) modify strongly the pattern of friction of PAN, yet, MoS2 intensifies the process of PAN tribooxidation making it tribochemically still more unstable, unlike other tribochemically more stable polymers. Simultaneously a portion of MoS2 oxidizes into sulfate.
Voitov V. A., Levchenko A. V.
The integral criterion of rating the tribological behavior of lubrcating materials using a four-ball workbench. pp. 441--447
Summary: An example of motor and transmission oils has served to validate the standard methods of rating the tribological characteristics of lubricating materials, their advantages and disadvantages are outlined. A new integral criterion of lubricity is proposed which is based on theoretical postulates and experimental data.
Pogodaev L. I., Chulkin S. G., Dudko P. P., Kuzmin V. N.
Structural energy approach to assessing the effect of lubricating compositions on the wear resistance of tribocouples. Part 3. Results of workbench tests. pp. 448--451
Summary: The results of triboenguieernig workbench tests are presented when the CVPM additive is used.
Abdrashitov E. F., Ponomarev A. N.
Behavior of siloxane rubbers in friction after plasma-chemical modification. pp. 452--460
Summary: Behavior of the robbers has been studied in friction prior and after plasma-chemical modification and fixation of the fluorine-polymeric film within the temperature range from -150 °C to +170 °C. Laboratory measurement instruments are described. Surface modification reduces the friction coefficient of the rubbers within the temperature range from -150 to +170 °C. It has been established that the indentor from polytetrafluorethylene does not improve the friction behavior of the rubbers. At slower speeds the friction of syloxane elastomers is primarily due to the adhesion between the rubber surface and the counterbody.
Kostygov V. T.
The method of precision estimation of tribomodelling by gradient rontgenography. pp. 461--463
Summary: In the article is described the method of the precision estimation of modelling of real triboprocesses by comparison of gradients changes on depth of structural-tension condition of crystalline lattices of the nearsurface tribostratums of nature and model under condition of these gradients in initual condition before friction were identical on nature and model.
Barykin N. P., Valeeva A. Kh.
Extending service life of multilayered sliding bearings. pp. 464--467
Summary: A rational process of applying an intermediate layer to multilayered sliding bearings of steam turbines to extend their service life has been selected by computer simulation of the loading conditions and by rating the stress-strain state simultaneously with a full-scale experiment for estimating adhesion between the antifrictional insert and the body.
Prushak V. Ya., Konoplyanik A. I.
The effect of adsorptive modification of mineral fillers on the wear resistance of epoxyfuran composites. pp. 468--471
Summary: The wear of epoxyfuran composites by the flow of a liquid containing halite tailings discharged after the dressing of potassium ore. It is shown that the adsorptive modification of the aluminosilicate contained in the composites strongly improves their wear resistance. The effect of the origin of the modifier, the concentration of halite tailings and the liquid, the impinging angle and the flow rate are shown to influence the resistance of the composites to wear.
Nevzorova A. B., Vrublevskaya V. I.
The effect of the running-in conditions on the performance of sliding bearings with fine-layered wooden linings. pp. 472--476
Summary: A new method of running in fine layered wooden linings is described Stresses induced by chemo-physical processes have been determined which lead to the impaired water absorbency and transformation of the elastic deformation in the linings into plastic deformation. It is shown that the running-in at elevated temperatures produces linings with stable shapes and improves their performance
ÕÐÎÍÈÊÀ. pp. 477--478
ÊÀËÅÍÄÀÐÜ ÊÎÍÔÅÐÅÍÖÈÉ. p. 478
