4_2019_sen_2

Title of the article

AUTOMATIC TRANSMISSIONS: “PRESSURE POINTS” OF CONTROL ALGORITHMS OF “CLUTCH-TO-CLUTCH SHIFTS” TECHNOLOGY
Authors

KRASNEVSKIY Leonid G., Corresponding Member of the NAS of Belarus, D. Sc. in Eng., Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section MECHANICS OF MOBILE MACHINES
Year 2019 Issue 4 Pages 20–31
Type of article RAR Index UDK 62-235 Index BBK  
Abstract

The previous publications of the author show that the foundations of modern theory and technology of automatic transmission control can be summarized in the form of a single multidisciplinary complex consisting of six interrelated basic technologies. The widely used “Clutch-to-Clutch Shifts” (CTC) technology is among them, which provides high quality transient processes of vehicles with modern automatic transmissions. It is provided by the use of a complex of special algorithms for controlling the transmission clutches when switching its stages. In the process of their implementation, the key points are the points at which decision-making has a significant impact on the subsequent process up to the possibility of its disorganization, called therefore “pressure points”. This is, first of all, the identification of the moment of stopping the clutch piston in the process of switching and calibration of the transmission and mechatronic control system, as well as the choice of precision electrohydraulic actuators. Based on the analysis of a large volume of patents and scientific publications, the analysis of methods is given for solving these problems used by the world’s leading manufacturers of automatic transmissions.
Keywords

mobile machines, automatic transmissions, mechatronic control systems, “Clutch-to-Clutch Shifts” technology of switching stages
   
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4_2019_sen_1

Title of the article

TENDENCIES OF THE DEVELOPMENT OF MECHANICS OF MACHINES AND MECHANISMS – 2019: WORLD TRENDS AND OUTPUTS OF THE 15th IFToMM WORLD CONGRESS
Authors

ALGIN Vladimir B., D. Sc. in Eng., Prof., Deputy Chief of the R&D Center “Mining Machinery”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

PODDUBKO Sergey N., Ph. D. in Eng., Assoc. Prof., Director General, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

STARZHINSKY Viktor E., D. Sc. in Eng., Prof., Chief Researcher, V.A. Belyi Metal-Polymer Research Institute of the NAS of Belarus, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

SHIL’KO Sergey V., Head of the Laboratory of Mechanics of Composites and Biopolymers, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section GENERAL ISSUES OF MECHANICS
Year 2019 Issue 4 Pages 5–19
Type of article RAR Index UDK 531.8:621.01 Index BBK  
Abstract

The paper is a journal version of the plenary report at the VIII Belarusian Congress on Theoretical and Applied Mechanics “Mechanics-2019”, which was held in Minsk, Belarus, on September 18–20, 2019. The world challenges are described: aging of the population, ecological and energy problems. Technological advances smooth out these problems to a certain extent. One of the main factors in solving global problems is digitalization and the Industry 4.0 initiative, closely related to it. In this initiative, the model approach and the digital twin that are largely developed in mechanics play a central role. The main approaches to the creation of digital twins are highlighted and characterized. On the example of gears and transmissions, the features of the approach to the formation of digital twins for non-standard technically complicated items are shown. Information is given on IFToMM — the most influential world public organization in the field of technical sciences, Proceedings of the IFToMM-2019 Congress, held in Krakow (Poland) from June 30 to July 4, 2019, and the events of the Congress. The materials of the article contain examples and generalizations on the most modern scientific areas, allowing to get acquainted with them, first of all, to domestic specialists, to correlate with them the directions and level of your own research.
Keywords

world challenges and trends, mechanics of machines and mechanisms, energy efficiency, digitalization, digital twins, IFToMM Congress-2019
   
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4_2019_sen

 
GENERAL ISSUES OF MECHANICS

Algin V.B., Poddubko S.N., Starzhinsky V.E., Shil'ko S.V.
Tendencies of the development of mechanics of machines and mechanisms – 2019: world trends and outputs of the 15th IFTоMM World Congress
5
MECHANICS OF MOBILE MACHINES

Krasnevskiy L.G.
Automatic transmissions: “pressure points” of control algorithms of “Clutch-to-Clutch Shifts” technology
20
DYNAMICS, DURABILITY OF VEHICLES AND STRUCTURES
 

Pleskachevsky Yu.M., Starovoitov E.I., Leonenko D.V.
Isothermal local loading of an elastoplastic three-layer plate
32
MECHANICAL ENGINEERING COMPONENTS

Romanovich A.S., Kanaplianik I.A.
Load of cutting units drives of mining equipment. Part 2. Technique of complex monitoring of loading parameters of the drive gear of the cutting unit
40
TECHNOLOGICAL MECHANICS
Panteleenko F.I., Belotserkovsky M.A., Karpets M.N., Sosnovsky A.V.
Comparative analysis of physical and mechanical properties of coatings applied using electric arc spraying and hypersonic metallization methods
48

Shil’ko S.V., Petrokovets E.M., Zhang Qiang
Structural design and tailoring of composites to obtain near zero coefficient of linear thermal expansion
55

Rudenko S.P., Valko A.L., Sandomirskii S.G.
Application of promising sparingly alloyed steels for gears of mobile machines
61

Zhornik V.I., Kovaliova S.A., Grigoryeva T.F., Kiseleva T.Yu., Belotserkovsky M.A., Taran I.I., Valkovich I.V., Vityaz P.A., Lyakhov N.Z.
Effect of mechanical activationand high pressure high temperature treatment on synthesis of material basedon nanostructured boron nitride
70
MATERIALS SCIENCE IN MECHANICAL ENGINEERING

Komarov A.I., Tsybulskaia L.S., Zolotaya P.S., Romanyuk A.S., Perevoznikov S.S.
Structure and optical properties of composite light-absorbing coatings obtained by microarc oxidation
79

Zhuravkov M.A., Hvesenya S.S., Lapatsin S.N., Nikolaitchik M.A.
Stability and strength assessment of the underground structure elements
84

Sherbakov S.S., Polestchuk M.M.
Acceleration of boundary-element computing using graphics accelerator for the elements with nonlinear form functions
89
TRIBO-FATIGUE SYSTEMS MECHANICS
Sosnovskiy L.A.
 Law of friction: from tribology to tribo-fatigue. Report 3. Experimental studies
95
OUR JUBILEES
Belotserkovsky Marat Artemovich (on the ocassion of his 70th birthday)
107