Title of the article |
PREPARATION OF COMPOSITE NANOSTRUCTURED POWDERS BASED ON COPPER AND IRON BY MECHANOCHEMICAL SYNTHESIS |
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Authors |
ZHORNIK Viktor I., D. Sc. in Eng., Assoc. Prof., Head of the Laboratory of Nanostructured and Superhard Materials, 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. |
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In the section | MATERIALS SCIENCE IN MECHANICAL ENGINEERING | ||||
Year | 2020 | Issue | 1 | Pages | 55–66 |
Type of article | RAR | Index UDK | 621.762.2 | Index BBK | |
Abstract |
It is shown that the formation of a solid solution is observed passing through the stage of formation of the nanocomposite during the mechanochemical synthesis of copper- and iron-based composites with a low-melting component (bismuth, gallium, tin, indium). At the same time, it passes through the formation of intermediate intermetallic compounds in inter-acting metal systems. It is shown that there are significant differences in the kinetics of formation of products of mechanosynthesis for powder mixtures based on iron and copper that can be explained by the difference of evolution of dislocation structure in body-centered cubic (BCC) (iron) and face-centered cubic (FCC) (copper) crystal lattices under plastic deformation shear under high pressure during the early stages of mechanical activation, as well as by the difference of the structure of the forming nonequilibrium boundaries that affects their diffusion permeability and grain boundary self-diffusion coefficient. At the same time, FCC structures are characterized by higher values of these parameters, which in this case contributes to a faster formation of mechanosynthesis products. It was found that the mechanical activation of iron and copper powders with refractory metals (Me – Ti and Zr) allows to produce mechanocomposites Cu/Me and Fe/Me with a homogeneous distribution of the nanosized components (zirconium and titanium) along the boundaries of iron and copper grains without significant interaction between them. Under conditions of intensive mechanical processing, redox reactions occur in copper (iron) – active metal (Zr, Ti) systems with the formation of dispersed oxides of active metals in a matrix of copper and iron. The use of mechanocomposites with zirconium in reactions with copper and iron oxides leads to the formation of copper, iron metals and zirconium oxides, and the use of mechanocomposites with titanium contributes to the formation of complex oxides. Such difference in the kinetics of phase formation during mechanical activation is due to the different solubility of zirconium and titanium in iron and copper matrices. |
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Keywords |
powder materials, mechanochemical synthesis, copper- and iron-based composites, low-melting components (bismuth, gallium, tin, indium), refractory components (titanium, zirconium) |
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Title of the article |
CALCULATED ESTIMATION OF FATIGUE LIFE OF BEARING STRUCTURES OF A MINING DUMP TRUCK BASED ON COMPLEX COMPUTER MODELING OF LOADING AND DAMAGE ACCUMULATION PROCESSES |
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Authors |
SHMIALIOU Aliaksei V., Ph.D. in Eng., Deputy Director General for Research, 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. LISOUSKI Eduard V., Head of the Division of Finite Element Analysis, 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. SHLIAZHKA Siarhei A., Junior Researcher, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus LITVINIUK Pavel S., Junior Researcher, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus HACKEVICH Aliaksandr S., Leading Design Engineer of the Calculation Group, OJSC “BELAZ” – Management Company of Holding “BELAZ-HOLDING”, Zhodino, Republic of Belarus |
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In the section | DYNAMICS, DURABILITY OF VEHICLES AND STRUCTURES | ||||
Year | 2020 | Issue | 1 | Pages | 33–44 |
Type of article | RAR | Index UDK | 629.114.4 | Index BBK | |
Abstract |
Methodological recommendations are presented for evaluating the fatigue life of machine load-bearing elements under the action of random processes of operational loading based on the integrated application of computer modeling technologies. The basic stages are considered for solving the problems of calculating dynamic loading, stress-strain state indicators, and evaluating the fatigue life of a mining dump truck when the machine is operating under typical operating conditions. Computational studies are implemented using a set of software tools for modeling multi-component ADAMS systems, finite element analysis ANSYS, and calculated fatigue life estimation nCODE Design Life. |
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Keywords |
computer simulation, virtual tests, finite element method, method, bearing systems, mining dump truck, force loading, stress-strain state, lifetime, fatigue life, welded joints, ANSYS, ADAMS, nCODE |
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Title of the article |
APPLICATION OF COMPUTER SIMULATION TO ENSURE COMPLIANCE OF VEHICLE UNDERRUN PROTECTIVE DEVICE WITH THE REQUIREMENTS OF UN REGULATION No. 58 |
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Authors |
LISOUSKI Eduard V., Head of the Division of Finite Element Analysis of the Department of Simulation and Virtual Testing of the Republican, Computer Center of Mechanical Engineering, 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. LITVINIUK Pavel S., Junior Researcher, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus SHLIAZHKA Siarhei A., Junior Researcher, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus |
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In the section | MECHANICS OF MOBILE MACHINES | ||||
Year | 2020 | Issue | 1 | Pages | 19–25 |
Type of article | RAR | Index UDK | 629.3 | Index BBK | |
Abstract |
The methodological recommendations of the process of improving the design of the rear underrun protective device (RUPD) are considered and described based on the results of computer simulation of tests (virtual tests) to ensure compliance with the requirements of UN Regulation No. 58 Revision 3 (hereinafter the Regulation). An example of creating a computer model, carrying out virtual tests with subsequent refinement of the design of the RUPD is given to ensure compliance with the technical requirements of the Regulation. The calculation model is developed using the ANSYS Workbench and LS-PrePost software packages. The calculation is performed in LS-DYNA program. Processing and analysis of computer simulation results are performed in the LS-PrePost program. |
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Keywords |
computer simulation, virtual testing, finite element method, rear underrun protective device, passive safety, ANSYS, LS-DYNA, LS-PrePost, UN Regulation No. 58 |
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Title of the article |
ALGORITHM FOR DAMPING LONGITUDINAL-ANGULAR OSCILLATIONS OF A MINING DUMP TRUCK |
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Authors |
KHITRIKOV Sergey V., Deputy Head of the Department of Computer Modelling and Virtual Testing of the Republican Computer Center of Mechanical Engineering, 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. SHMIALIOU Aliaksei V., Ph.D. in Eng., Deputy Director General for Research, 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. SHVETS Dzmitry A., Head of the Division of Information and Measurement Systems, 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. KRAUCHONAK Aliaksei L., Junior Reseacher, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus VYGONNY Albert G., Ph. D. in Eng., Assoc. Prof., Leading Researcher, 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. KALESNIKOVICH Andrei N., Head of the Department of Computer Modelling and Virtual Testing of the Republican Computer Center of Mechanical Engineering, 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. SHAKIN Roman V., Head of Design Bureau, OJSC “BELAZ” – Management Company of Holding “BELAZ-HOLDING”, Zhodino, 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. |
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In the section | MECHANICS OF MOBILE MACHINES | ||||
Year | 2020 | Issue | 1 | Pages | 26–32 |
Type of article | RAR | Index UDK | 681.51, 303.717, 629.353 | Index BBK | |
Abstract |
The paper considers the solution to the problem of minimizing the longitudinal-angular oscillations of a mining dump truck that occurs when driving on rough roads. An algorithm has been developed for damping longitudinal-angular oscillations by briefly changing the traction and braking torques on the driving wheels, depending on the phase of oscillations of the sprung mass of the truck. The algorithm was approved using a dynamic mathematical model of a mining dump truck. The results of the comparative analysis showed the possibility of reducing the duration of the oscillations by 54 % and the amplitude of the oscillation by 40 % when moving an individual asperity, and when the truck moves along the road with characteristics corresponding to the road surface in the mining dump, the root-mean square accelerations at the driver’s workplace can be reduced by 19.5 %. |
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Keywords |
algorithm, longitudinal-angular oscillations, mining dump truck |
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Title of the article |
EVALUATION OF THE DIFFERENTIAL DRIVE OF THE TWIN WHEELS OF A MINING DUMP TRUCK WHEN TURNING |
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Authors |
KALESNIKOVICH Andrei N., Head of the Department of Computer Modelling and Virtual Testing of the Republican Computer Center of Mechanical Engineering, 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. VYGONNY Albert G., Ph. D. in Eng., Assoc. Prof., Leading Researcher, 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. HANCHARKA Аliaksei А., Reseacher, 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. LOPUKH Dzmitry G., Head of the Department of Virtual Testing, 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. KRAUCHONAK Aliaksandr L., Junior Reseacher, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus KRAUCHONAK Aliaksei L., Junior Reseacher, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus RAK Mikhail V., Deputy Chief Desighner, OJSC “BELAZ” – Management Company of Holding “BELAZ-HOLDING”, Zhodino, Republic of Belarus |
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In the section | MECHANICS OF MOBILE MACHINES | ||||
Year | 2020 | Issue | 1 | Pages | 12–18 |
Type of article | RAR | Index UDK | 629.3 | Index BBK | |
Abstract | The focus of this paper is on the study of loading parameters of the mining dump truck drive wheels with twin wheels based on the computer simulation. A comparative assessment of the loading of the wheels’ electric drive is given for the design with and without cross-axle differential on the twin wheels. The expediency of using the cross-axle differential on the twin wheels, which reduces the required power and loadings, as well as slip, is shown. Computer simulation is performed using the ADAMS program. | ||||
Keywords |
mining dump truck, dynamic model, cross-axle differential, twin wheel, tire slippage, computer simulation, ADAMS |
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