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Machines
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Selected Papers from the ICIEAM 2020 Conference
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Selected Papers from the ICIEAM 2020 Conference

A special issue of Machines (ISSN 2075-1702).

Deadline for manuscript submissions: closed (30 September 2020) | Viewed by 28344

Special Issue Editors

Dr. Andrey A. Radionov

E-Mail Website
Guest Editor
South Ural State University (National Research University), Office 917, Main University Building 76, Lenin avenue, 454080 Chelyabinsk, Russia
Interests: mechatronics; automation; power electronics; motor drive systems
Special Issues, Collections and Topics in MDPI journals
Dr. Alexander Sergeevich Karandaev

E-Mail Website
Guest Editor
Nosov Magnitogorsk State Technical University, 38, Lenin Street, Magnitogorsk City, Chelyabinsk Region, Russia
Interests: mechatronics; automation; electrical machines; drives and systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The 2020 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM-2020) is organized to promote interdisciplinary discussion and the presentation of research papers, summarizing research in technical disciplines in universities, research institutes, large industrial enterprises, scientific and industrial associations of the Russian Federation, as well as foreign authors, and research results obtained on the personal initiative of the authors.

The aim of the Special Issue “Selected Papers from the ICIEAM 2020 Conference” is to reflect the state-of-the-art in challenges faced by industrial engineering and present the most important and relevant advances in applications such as mechatronics, robotics, electrical engineering, measurements, and control systems and drives. The Special Issue will include the modern research results and developments in industrial engineering, which will interest a wide audience of academicians and professionals.

Dr. Andrey A. Radionov
Dr. Alexander Sergeevich Karandaev
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Machines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Mechatronics
  • Automation
  • Power systems
  • Computer technologies for industrial application
  • Electrical machines and drives
  • Power electronics
  • Measurements

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Published Papers (7 papers)

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Research

35 pages, 19264 KiB  
Article
Simulation Method for the Transport System of a Small-Sized Reconfigurable Mobile Robot
by Andrey Vasiliev and Igor Dalyaev
Machines 2021, 9(1), 8; https://doi.org/10.3390/machines9010008 - 12 Jan 2021
Cited by 5 | Viewed by 4089
Abstract
This study focuses on the features of transport (locomotion) systems of mobile mini-robots (MMR), i.e., small unmanned ground vehicles of a portable type measuring several tens of centimeters and weighing no more than 15 kg. A distinctive feature of the considered MMR is [...] Read more.
This study focuses on the features of transport (locomotion) systems of mobile mini-robots (MMR), i.e., small unmanned ground vehicles of a portable type measuring several tens of centimeters and weighing no more than 15 kg. A distinctive feature of the considered MMR is the possibility of its both structural reconfiguration (i.e., the ability to function in two options—tracked and wheeled) and geometric reconfiguration in the tracked option (i.e., chassis geometry variation). Thus, the transport system of such a mobile robot is divided into two components: a locomotion subsystem and a chassis geometry variation subsystem. The article examines the factors that are necessary for the correct mathematical description of such a small-sized and relatively high-speed transport system. A method for constructing a computer model of the transport system as an electromechanical device only is proposed. Such a computer model of the MMR transport system is developed for two types of chassis configurations: tracked and wheeled. The experimental studies performed and the comparison of the experimental and simulated data obtained showed their close convergence, within 5 to 7%. Thus, it is shown that the revealed features of the MMR transport systems along with the proposed method for their computer model development considering these features make it possible to increase the accuracy and adequacy of the MMR motion simulation in comparison with previously known approaches used in the computation of larger vehicles. The results obtained make it possible to consider the proposed computer model of the transport system as an electromechanical component of the complete model of a mobile robot. Full article
(This article belongs to the Special Issue Selected Papers from the ICIEAM 2020 Conference)
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18 pages, 12659 KiB  
Article
Development of Mechanisms for Automatic Correction of Industrial Complex Tools in the Preprocessing of Laser Welding for Small-Scale and Piece Production Using Computer Vision
by Rodionov Dmitry, Lyukhter Alexander and Prokoshev Valery
Machines 2020, 8(4), 86; https://doi.org/10.3390/machines8040086 - 17 Dec 2020
Cited by 1 | Viewed by 2526
Abstract
This paper is devoted to the development and improvement of mechanisms for the functioning of an automated system for correcting the points of the planned trajectory of the tool of a laser robotic welding complex in the pre-process. Correction of the points of [...] Read more.
This paper is devoted to the development and improvement of mechanisms for the functioning of an automated system for correcting the points of the planned trajectory of the tool of a laser robotic welding complex in the pre-process. Correction of the points of the planned trajectory is carried out in two stages: in the first stage, the focal laser radiation is corrected; in the second stage, the position of the tool is corrected. Correction of the focal laser radiation is carried out in conjunction with the automated focusing of the camera by moving the tool of the industrial complex along its own axis. The functioning of position correction mechanisms is based on methods for recognizing the edges of the gap line to be welded from the image obtained from the charge-coupled device (CCD) camera. The edges of the gap to be welded in the image are segmented using threshold selection. The boundaries of the threshold selection segment are the extreme values of the pixel distribution of the entire image in brightness. For unambiguous recognition of the desired edges based on the segmentation result, the features defining them as a pair of continuous, conditionally parallel lines are formalized. Relative to the recognized pair of edges, the correct position of the planned trajectory point relative to the current position of the welding head is determined. To transfer the correct position, we formalized the calculation model and chose an arbitrary point in the flat image in the workspace laser robotic welding complex, considering the orientation of the tool and the position of the camera. The results obtained made it possible to develop a correction system and successfully test it in the industrial complex. Full article
(This article belongs to the Special Issue Selected Papers from the ICIEAM 2020 Conference)
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14 pages, 6955 KiB  
Article
Effect of the Ti6Al4V Alloy Track Trajectories on Mechanical Properties in Direct Metal Deposition
by Ivan Erdakov, Lev Glebov, Kirill Pashkeev, Vitaly Bykov, Anastasia Bryk, Vyacheslav Lezin and Liudmila Radionova
Machines 2020, 8(4), 79; https://doi.org/10.3390/machines8040079 - 19 Nov 2020
Cited by 19 | Viewed by 2602
Abstract
The TiAl6V4 alloy is widely used in selective laser melting and direct laser melting. In turn, works devoted to the issue of how the track stacking scheme affects the value of mechanical properties is not enough. The influence of the Ti6Al4V alloy track [...] Read more.
The TiAl6V4 alloy is widely used in selective laser melting and direct laser melting. In turn, works devoted to the issue of how the track stacking scheme affects the value of mechanical properties is not enough. The influence of the Ti6Al4V alloy track trajectories on the microstructure and mechanical properties during direct laser deposition is studied in this article for the first time. The results were obtained on the influence of «parallel» and «perpendicular» technique of laying tracks in direct laser synthesis. All studied samples have a microstructure typical of the hardened two-phase condition titanium. Here, it is shown that the method of laying tracks and the direction of load application during compression testing relative to the location of the tracks leads to a change in the ultimate strength of the Ti-6Al-4V alloy from 1794 to 1910 MPa. The plasticity of the Ti-6Al-4V alloy obtained by direct laser alloying can vary from 21.3 to 33.0% depending on the direction of laying the tracks and the direction of the compression test. The hardness of alloys varies in the range from 409 to 511 HV and depends on the method of laying the tracks and the direction of hardness measurements. Full article
(This article belongs to the Special Issue Selected Papers from the ICIEAM 2020 Conference)
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22 pages, 3138 KiB  
Article
Calculating Power Parameters of Rolling Mill Based on Model of Deformation Zone with Four-Roll Passes
by Marina N. Samodurova, Olga I. Karandaeva, Vadim R. Khramshin and Ivan V. Liubimov
Machines 2020, 8(4), 73; https://doi.org/10.3390/machines8040073 - 13 Nov 2020
Cited by 7 | Viewed by 9941
Abstract
Making “digital twins” for rolling processes and mill equipment should begin with the development of mathematical models of the deformation zone. The deformation zone of two-high flat mill rolling have been studied in detail, relevant models are available in many academic papers. However, [...] Read more.
Making “digital twins” for rolling processes and mill equipment should begin with the development of mathematical models of the deformation zone. The deformation zone of two-high flat mill rolling have been studied in detail, relevant models are available in many academic papers. However, the same cannot be said about the most complex deformation zones in stands with multi-roll gauge. Therefore, the task of their reliable mathematical description is of immediate interest. The development of mathematical models is necessary for the design of new wire mills and rolling-drawing units. The combination of rolling in stands with multi-roll gauge and drawing is a promising direction in the production of wire from difficult-to-form steels and alloys. Digital models for pressure-based metal treatment are also necessary for calculating the rolling-mill power parameters during the development of new assortments at the operating mills. The models of deformation zones present the basis for developing the multivariable control systems of process conditions of continuous mills. This research is devoted to the study of the deformation zone and the development of a procedure for calculating the power parameters of rolling in a stand with four-roll passes. The solution of these challenges is given using the example of an operating five-stand wire mill. The authors analysed the known analytical dependencies for calculating the rolling mill force and torque. A mathematical model of the deformation zone and a program for calculating the power parameters have been developed. The paper compares the results obtained from calculations based on analytical dependence and on modelling. A comparison with the experimental parameters obtained at the mill is given. The authors assess the feasibility of using the known formulas and analyse the impact of the front and rear tensions on the power parameters of rolling mill. The problem of developing an automatic tension control system for continuous mills with multi-roll groove is substantiated. Full article
(This article belongs to the Special Issue Selected Papers from the ICIEAM 2020 Conference)
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14 pages, 7481 KiB  
Article
Synchronization of Auxiliary Mechanisms and Main Electric Drive of the Pipe Cold-Rolling Mill. Complete Solution
by Vsevolod Ostrouhov, Dmitry Sychev and Maxim Grigorev
Machines 2020, 8(4), 71; https://doi.org/10.3390/machines8040071 - 5 Nov 2020
Cited by 24 | Viewed by 2938
Abstract
This article deals with installations with complex and nonstandard executive instrument movement. Having analyzed the technical implementation and operational features of cold-rolling pipe mills, the research team formulated the problem of synthesizing electric drives of auxiliary mechanisms. It is shown that the conditions [...] Read more.
This article deals with installations with complex and nonstandard executive instrument movement. Having analyzed the technical implementation and operational features of cold-rolling pipe mills, the research team formulated the problem of synthesizing electric drives of auxiliary mechanisms. It is shown that the conditions for choosing a mechanical converter are associated with the oscillation of the processes of the electric drive system. The finite element method and the gradient descent method are used for structural analysis of solids and electromagnetic calculations. The data of the specific cost of semiconductor converters were analyzed using a linear least-squares regression technique. The advantages of a synchronous reluctance motor of independent excitation for the electric drives of auxiliary mechanisms are given and substantiated. The optimization of the geometrical parameters of the electromechanical converter was carried out according to the maximum developed electromagnetic torque. Modern semiconductor technology in the design of special-purpose electric drives leads to a revision of the principles for determining the optimal number of phases and the structure of the motor power supply. The rationale for the use of multilevel frequency converters is given. Taking into account an in-depth preliminary analysis and an integrated approach, these tasks were successfully completed, which was confirmed experimentally at the implementation of the developed system. Full article
(This article belongs to the Special Issue Selected Papers from the ICIEAM 2020 Conference)
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24 pages, 6691 KiB  
Article
Analysis and Synthesis of Control Systems for Spacecraft Solar Arrays
by Anatoly K. Tishchenko, Eugeny M. Vasiljev and Artyom O. Tishchenko
Machines 2020, 8(4), 64; https://doi.org/10.3390/machines8040064 - 21 Oct 2020
Cited by 2 | Viewed by 2748
Abstract
The paper is devoted to the problem of creating highly reliable power supply systems for spacecrafts intended for long-term autonomous flights. Within its framework, the problem of synthesizing a control system for solar arrays is being solved. To solve this problem, a mathematical [...] Read more.
The paper is devoted to the problem of creating highly reliable power supply systems for spacecrafts intended for long-term autonomous flights. Within its framework, the problem of synthesizing a control system for solar arrays is being solved. To solve this problem, a mathematical model of a solar panel was compiled, and a study of its static and dynamic characteristics was carried out. It was found that when the solar panel is controlled using a shunt switch with pulse-width modulation, resonance phenomena appear in the system, leading to an unacceptable change in the polarity of voltages on the photocells. The operating conditions of the solar panels, which exclude the occurrence of the indicated alternating voltages, are found, and appropriate recommendations are given for the choice of the quantization frequency in the system. On the basis of the recommendations received, the transition to a quasi-continuous representation of the control system was carried out, and a graphic-analytical synthesis of the controller providing the required quality indicators of the system was carried out. To ensure the survivability of the power supply system, a method is proposed for the hierarchical organization of the interaction of solar panels, which reproduces the homeostatic properties of biological structures in the system. This property is provided by automatic transfer of control to subsequent levels of the hierarchy as the energy resources of the previous levels are exhausted. In addition, selective control is applied only to that part of the total generated power, which is sufficient to counter the current disturbing influences on the system. This approach to control prevents cascading failures in the system. The paper presents simulation models on which all theoretical positions and methods proposed in the work are tested. Full article
(This article belongs to the Special Issue Selected Papers from the ICIEAM 2020 Conference)
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12 pages, 1522 KiB  
Article
Research of a Flexible Space-Vector-Based Hybrid PWM Transition Algorithm between SHEPWM and SHMPWM for Three-Level NPC Inverters
by Tao Jing, Andrey Radionov, Alexander Maklakov and Vadim Gasiyarov
Machines 2020, 8(3), 57; https://doi.org/10.3390/machines8030057 - 17 Sep 2020
Cited by 8 | Viewed by 2587
Abstract
In this paper, one model of flexible space-vector-based hybrid pulse width modulation (HPWM) transition algorithm consisting of selective harmonic elimination pulse width modulation (SHEPWM) and selective harmonic mitigation pulse width modulation (SHMPWM) is applied and examined in a 10kV grid with a three-level [...] Read more.
In this paper, one model of flexible space-vector-based hybrid pulse width modulation (HPWM) transition algorithm consisting of selective harmonic elimination pulse width modulation (SHEPWM) and selective harmonic mitigation pulse width modulation (SHMPWM) is applied and examined in a 10kV grid with a three-level neutral point clamped (3L-NPC) grid-connected inverter. These two modulation techniques are used to produce the appropriate firing pulses for 3L-NPC grid-connected inverters in different cases. SHMPWM is adopted to the grid-connected inverters to mitigate the required odd non-triplen harmonics according to the requirements of grid codes EN 50160 and CIGRE WG 36-05, while the firing pulses generated using SHEPWM is used to eliminate the primary low-order odd non-triplen harmonics completely. Meanwhile, one smooth and fast transition scheme is proposed by providing a suitable switching angles set at the transition point. Finally, it is demonstrated and validated by the MATLAB/SIMULINK model that smooth and quick transition is realized and there is no sudden change of current during the transition, as expected. Furthermore, this hybrid PWM technique is universal for different PWM methods based on the specific operating conditions. Full article
(This article belongs to the Special Issue Selected Papers from the ICIEAM 2020 Conference)
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