Title of the article

APPLICATION OF THE FINITE ELEMENT METHOD TO THE INVESTIGATION OF COMPOSITE MATERIALS. APPROACHES, METHODS, COMPUTER PROGRAMMS

Authors

Kniazeva E.N., Candidate of Technical Sciences, Chief Specialist of the Department of Science and Technical Programs and Projects in the Sphere of Industry and Energetic of Management of Science and Technical Programs and Projects of the State Committee for Science and Technologies of the Republic 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.
Kukareko V.A., Doctor of Physical and Mathematical Sciences, Associate Professor, Head of the Center for Structural Research and Tribo-Mechanical Testing of Materials and Engineering Products for Collective Use, the Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.

Alexandrov V.Yu., Junior Researcher of the Department of Simulation and Virtual Tests, Republican Computer Center of Mechanical Engineering, the Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus

Timoshenko N.P., Junior Researcher of the Laboratory of Metallurgy in Mechanical Engineering, STC “Technology of Mechanical Engineering and Process Equipment”, the Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus

In the section TECHNOLOGICAL MECHANICS
Year 2013 Issue 3 Pages 69-76
Type of article RAR Index UDK 620.22:51-72 Index BBK  
Abstract

Main approaches to application of finite element method to the investigation of composite materials are reviewed and analyzed, including theoretical suggestions, direct calculation of representative volumes of composites by means of universal computer packages, using of specialized programs. Advantages, disadvantages, limitations and perspectives of using of different approaches in the investigation of mechanical properties of composite materials are shown. Experience of application of finite element modeling to the improvement of properties of composites so as to the explanation of micro-level processes is also reviewed.

Keywords composite material, modeling, finite element method, microstructure, Voronov cells, meaningful volume
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Title of the article

CARBURIZING AND NITRIDING OF THE STEEL 20 IN FLUID BED

Authors

Kuhareva N.G., Candidate of Technical Sciences, Head of the Laboratory of Hardening of Steel Products of the Belarusian National Technical University, Minsk, Republic of Belarus
Babyl T., Doctor of Technical Sciences, Head of the Department of Thermochemical Treatment of the Precision Mechanics Institute, Warsaw, Poland
Shipko A.A., Doctor of Technical Sciences, Professor, Head of the Laboratory “Metallurgy in Mechanical Engineering”, STC “Technology of mechanical engineering and manufacturing equipment”, 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.
Shtolik T.N., Junior Researcher of the Laboratory of Metallurgy in Mechanical Engineering, STC “Technology of mechanical engineering and manufacturing equipment”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus

In the section TECHNOLOGICAL MECHANICS
Year 2013 Issue 3 Pages 62-68
Type of article RAR Index UDK 621.785.5 Index BBK  
Abstract

The results of studies of the processes of carburizing and nitriding from powder saturating media in fluid bed are shown. The structure, phase and chemical composition and properties of thermodiffusion coatings.

Keywords carburizing, nitriding, fluid bed, vibration, structure
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Bibliography
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Title of the article

COMBINATION ACTUATOR OF THE LINEAR COORDINATE SYSTEM OF TECHNOLOGICAL EQUIPMENT WITH CONTROL PROPULSIVE FORCE

Authors

Basinyuk V.L., Doctor of Technical Sciences, Associate Professor, Director of the STC “Technology of mechanical engineering and process equipment”, 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.

Mardosevich E.I., Candidate of Technical Sciences, Head of the Section of Perspective Drives and Tribological Systems, STC “Technology of mechanical engineering and process equipment”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus

Papina S.S., Head of the Department, UP “Design Bureau of Precise Electronic Engineering - Assembly Equipment”, GNP “Planar”, Minsk, Republic of Belarus

Lomako V.G., , Head of the Section UP “Design Bureau of Precise Electronic Engineering - Assembly Equipment”, GNP “Planar”, Minsk, Republic of Belarus

In the section TECHNOLOGICAL MECHANICS
Year 2013 Issue 3 Pages 50-56
Type of article RAR Index UDK 621.757;8;9 Index BBK  
Abstract

The problems of constructing of linear drives with traditional toothed belt transmissions for coordinate systems of technological equipment, used for cutting semiconductor wafers with diamond wheel are discussed. The possibilities of a significant improvement in their dynamic qualities by creating a combination actuator wherein in addition to the main motor in the construction is entered another relatively low$powered program$controlled linear electromotor are shown. Its armature is directly connected with the movable table. With help of the linear electromotor additional program-controlled propulsive force is created under its acceleration or braking the table, it eliminates the occurrence of natural vibrations when it reaches cutting feed rate or stop.

Keywords wavering, cutting of the semiconductor wafers, program-controlled gear, control propulsive force
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Bibliography
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Title of the article

NEW CARBURIZED STEEL WITH REGULATED HARDENABILITY FOR GEARS OF TRANSMISSIONS

Authors

Rudenko S.P., Candidate of Technical Sciences, Head of the Section of the Laboratory of Metallurgy in Mechanical Engineering STC “Technology of mechanical engineering and process equipment”, 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.
Valko A.L., Senior Researcher of the Laboratory of Metallurgy in Mechanical Engineering STC “Technology of mechanical engineering and process equipment”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus
Dydetskaja L.R., Candidate of Technical Sciences, Head of the Laboratory of Physical and Technical Institute of the NAS of Belarus, Minsk, Republic of Belarus
Emeljanovich I.V., Candidate of Technical Sciences, Technical Director, RUP “Minsk tractor works” – Deputy General Director PO “Minsk tractor works” for Development, Minsk, Republic of Belarus

In the section TECHNOLOGICAL MECHANICS
Year 2013 Issue 3 Pages 57-61
Type of article RAR Index UDK 621.833:621.785.52 Index BBK  
Abstract

Results of researches new is economical$alloyed carburized steels for gears of transmissions of tractors "Belarus" are resulted. The comparative analysis hardenability and mechanical characteristics of different swimming trunks of a skilled steel is given. Recommendations about the quantitative structure of alloying elements providing high hardenability carburized of layers and cores high$stressed of gears of transmissions are given.

Keywords tooth gear, transmission, new steel, alloying elements, hardenability, mechanical characteristics
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Title of the article

CLOSING CURVED CRACK IN THE SHEET ELEMENT UNDER ACTION THE LOCAL TEMPERATURE FIELD

Authors

Mustafayev A.B., Candidate of Physical and Mathematical Sciences, Doctoral Student, Institute of Mathematics and Mechanics of the National Academy of Sciences of Azerbaijan, Baku, Azerbaijan Republic, This email address is being protected from spambots. You need JavaScript enabled to view it.

In the section MECHANICS OF DEFORMED SOLIDS
Year 2013 Issue 3 Pages 44-49
Type of article RAR Index UDK 539.375 Index BBK  
Abstract

Local changes of temperature near to the end of a curvilinear crack are considered. The problem about balance of a curvilinear crack with in part contacting beach at action of the external stretching loadings, induced thermoelastic fields of stresses and efforts on contacting surfaces of a crack in each approach, is reduced to system singular the integrated equations. Contact stresses, values of the sizes of end contact zone where beach of a crack are closed are found normal and tangents.

Keywords curved crack, sheet element, local temperature field, contact zone, contact stresses
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