scholarly journals ORGANIZATION OF AN AUTOMATED SYSTEM SCIENTIFIC RESEARCH IN THE CONTROL AND TESTING OF MACHINES IN THE STRUCTURE OF THE PROCESS MONITORING SYSTEM

2020 ◽  
pp. 12-18
Author(s):  
Я. Ш. Шамсадова ◽  
А. А. Игнатьев ◽  
М. Р. Исаева ◽  
Х. Р. Визирова
Keyword(s):  
Monitoring System ◽  
Technological Process ◽  
Process Monitoring ◽  
Dynamic Characteristics ◽  
Experimental Studies ◽  
Scientific Research ◽  
Automated System ◽  
Practical Implementation

В данной статье приведены данные об экспериментальных исследованиях динамических характеристик и испытаний станков, что позволяет получить важные результаты для анализа виброакустических колебаний, возникающих в основных формообразующих узлах, для идентификации и диагностирования. В качестве практической реализации элементов автоматизированной системы научных исследований можно привести комплекс автоматизированных измерительных средств, применяемых в системе мониторинга технологического процесса изготовления деталей подшипников. This article presents data on experimental studies of dynamic characteristics and tests of machines, which allows us to obtain important results for the analysis of vibroacoustic vibrations that occur in the main forming nodes, for identification and diagnosis. As a practical implementation of the elements of an automated system of scientific research, we can cite a set of automated measuring tools used in monitoring the technological process of manufacturing bearing parts.

scholarly journals Improvement of the automated seismic and acoustic monitoring system “Prognoz-ADS” main elements

2020 ◽  
Vol 192 ◽  
pp. 04014
Author(s):  
Pavel Anikin ◽  
Gennady Kursakin ◽  
Iuliia Fedotova
Keyword(s):  
Rock Mass ◽  
Monitoring System ◽  
Experimental Studies ◽  
Automated System ◽  
Seismic Events ◽  
Frequency Range ◽  
Industrial Testing ◽  
Control Zone ◽  
Accuracy Measurement ◽  
Highly Sensitive

The results of theoretical and experimental studies have established the need to improve and modernize the highly sensitive piezoelectric resonant type PeA12 converters used in the seismic monitoring system, which have been successfully used for more than 30 years in the rock mass at a number of rockburst hazardous mines. The main problem of the accuracy measurement by the geophone PeA12 (and other models based on it) is due to the presence of several resonances in the operating frequency band. The developed upgraded model of the AP2088 converter has successfully passed industrial testing as part of the automated monitoring system “Prognoz-ADS” at rockburst hazardous mine. During the test period (more than 1 year), seismoacoustic events were registered and verified in the rock mass, including rock burst and shocks in the rock mass. Thus, the use of highly sensitive (u10 V/m•s-2) piezoacoustic converters AP2088 as part of the automated system provides registration of acoustic emission in the rock mass in the frequency range from 0.1 to 10 kHz with the energy of seismic events from 10 to 106 J, which will increase the reliability of the forecast of geodynamic phenomena and technogenic seismicity in the control zone of the system.

Technology transfer tools and mechanisms

2020 ◽  
pp. 87-92
Author(s):  
N. I. Hornostai ◽  
O. Y. Mykhalchenkova ◽  
O. І. Lyubarsky
Keyword(s):  
Technology Transfer ◽  
Technological Development ◽  
Scientific Research ◽  
World Market ◽  
Industrial Sector ◽  
Automated System ◽  
Real Economy ◽  
International Technology Transfer ◽  
Transfer Of Knowledge ◽  
Technological Transfer

In the context of the need for sustainable development of the national economy and joining the group of leading countries — technology suppliers, the organization of a technology transfer system, which ensures the transition of the results of innovative activities from the stage of scientific research to the stage of practical application, becomes one of the most important tools for the scientific and technological development of the country. Technology transfer is a rather complex system with a sufficient variety of participants and resources, which are the “tool of the initiative and communication plan” that promote and are necessary for continuous innovation in the modern economy. The tools and mechanisms of technology transfer are discussed in the article, a model for the implementation of international technology transfer in UkrISTEI through the Automated system for the formation of interstate information resources, the International technological platform for the technology transfer of collective use, the Interregional Office for the Transfer of Knowledge and Technologies, the Open Innovation Platform was presented; these objects are participating parts in export and import of innovative technologies and form a modern mechanism for the transfer of these technologies between countries. The process of technological transfer necessary to assess the benefits obtained as a result of technology transfer and ways to achieve these benefits has been investigated. The authors of the article presented the relevance of scientific research in the field of technological transfer, which is explained by the following reasons: effective organization of the technology transfer process contributes to an increase in the implementation of state innovation programs in relation to the modernization and innovation of the real economy; technology transfer facilitates the continuous movement of research and development results (projects) into the industrial sector of the economy; the efficiency of technological transfer makes it possible to accelerate the formation of scientific, technological and industrial ties, as well as to strengthen the position of national production in the world market of science-intensive developments.

In-Process Monitoring and Estimation of Tool Wear on CNC Turning by Applying Multi-Sensor with Back Propagation Technique

2011 ◽  
Vol 291-294 ◽  
pp. 3036-3043 ◽  
Author(s):  
Somkiat Tangjitsitcharoen ◽  
Channarong Rungruang
Keyword(s):  
Acoustic Emission ◽  
Tool Wear ◽  
Monitoring System ◽  
Process Monitoring ◽  
Back Propagation ◽  
Force Sensor ◽  
Accelerometer Sensor ◽  
Cnc Turning ◽  
Propagation Technique ◽  
Cnc Turning Process

The aim of this research is to propose and develop the in-process monitoring system of the tool wear for the carbon steel (S45C) in CNC turning process by utilizing the multi-sensor which are the force sensor, the sound sensor, the accelerometer sensor and the acoustic emission sensor. The progress of the tool wear results in the larger cutting force, the higher amplitude of the acceleration signal, and the higher power spectrum densities of sound and acoustic emission signals. Hence, their signals have been integrated via the neural network with the back propagation technique to monitor the tool wear. The experimentally obtained results showed that the in-process monitoring system proposed and developed in this research can be effectively used to estimate the tool wear level with the higher accuracy and reliability.

EXPERIMENTAL STUDIES ON THE DEVELOPMENT OF AN AUTOMATED SYSTEM FOR REGULATING THE SOIL DENSITY USED IN A SEEDING MACHINE

2021 ◽  
pp. 9-15
Author(s):  
ALEKSEI S. DOROKHOV ◽  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Power Supply ◽  
Experimental Studies ◽  
Automated System ◽  
Statistical Characteristics ◽  
Vegetable Crops ◽  
Soil Density ◽  
Density Control

Research on the development of an automatic control system for the rolling-in working units is aimed at establishing the reliability and analytical relationships, determining the quality indicators of work in real conditions of the rolling-in working units of a seeding machine, and checking the patterns obtained in the fi eld and identifi ed theoretically. Research on the development of an automatic control system for the rolling implements was carried out when sowing dragee seeds of table beet of the Bordeaux variety with a seeding unit consisting of a Belarus-4235 tractor and a Monopil S15/12 precision seeding machine. The system for automatic control of soil density includes the main hardware and software: actuators for maintaining and deepening the rolling working units, microcontrollers, motor drivers, a non-contact ultrasonic sensor, a power supply unit and a sensor for measuring soil density. The paper presents the results of a study to determine the soil density when sowing seeds of table beet, depending on the moisture content of the soil in the sowing layer. The authors describe research methodology, provide graphical relationships between changes in soil density and the depth of seeding, and comment on the main obtained statistical characteristics of the experiment. As a result of the study, structural, echnological and functional diagrams of a rolling rink with an automatic control system using electronically controlled electric cylinders (linear actuators) have been developed. The optimal parameters of the linear drive of the press roller have been established: power - 50W, power supply - 12V, rod stroke - 200…600 mm, speed - 10…45 mm/s, load - 200…900 N. Experimental studies have shown the applicability of the presented system of the automatic control of soil density, which ensures the optimum density of the seedbed of 1.3…1.4 g/cm³. The described technique can be used to develop a soil density control system when sowing seeds of other vegetable crops.

Tasks of the Development and Implementation of Enterprise Industrial Safety Management System when Operating Technical Devices

2021 ◽  
pp. 15-19
Author(s):  
N.A. Makhutov ◽  
◽  
A.P. Cherepanov ◽  
M.V. Lisanov ◽  
◽  
...  
Keyword(s):  
Management System ◽  
Safety Management ◽  
Technical Condition ◽  
Industrial Safety ◽  
Automated System ◽  
Practical Implementation ◽  
Technical Diagnostics ◽  
Technical Device ◽  
Safety Management System ◽  
Hazardous Production

Development and practical implementation of the enterprise industrial safety management system considering the new requirements of the legislation on creation of the state system for monitoring, remote control, technical certification, and diagnostics of technical devices at hazardous production facilities supervised by Rostechnadzor is discussed in the article. To perform automated collection, recording, generalization, systematization, and evaluation of the information on the parameters that characterize safety of the enterprise hazardous equipment as a whole and each technical device, a block diagram of the enterprise automated industrial safety management system is proposed. The basics are suggested for creating the automated system containing a database that includes all the technical documentation, certificates and expert opinions, repair documentation and accompanying documents (orders, instructions, audit conclusions, etc.) for the efficiency of tracking the technical condition in real time considering changes in all the controlled parameters of the enterprise technological complexes. It is noted in the article that the assessment of the technical condition and life of single and unique technical devices that make up the bulk of equipment in hazardous production should be carried out already at the manufacturing stage by combining technical control with technical diagnostics, and their results should be included in the technical passport of the device. The need in this information for the operators is invaluable, especially after working out the manufacturer’s designated period of safe operation and for evaluating the actual technical condition and comparing it with its original, which was documented during fabrication. Data on the initial state allows to qualitatively assess the degradation processes that are developing during operation and consider them when evaluating the life of a technical device and conduct a qualitative audit of the industrial safety management system.

Fractal Pattern Recognition of Image Profiles for Manufacturing Process Monitoring and Control

2018 ◽  
Author(s):  
Farhad Imani ◽  
Bing Yao ◽  
Ruimin Chen ◽  
Prahalada Rao ◽  
Hui Yang
Keyword(s):  
Additive Manufacturing ◽  
Process Monitoring ◽  
Manufacturing Process ◽  
Manufacturing Systems ◽  
Experimental Studies ◽  
Precision Machining ◽  
Monitoring And Control ◽  
Process Monitoring And Control ◽  
Ultra Precision ◽  
And Control

Nowadays manufacturing industry faces increasing demands to customize products according to personal needs. This trend leads to a proliferation of complex product designs. To cope with this complexity, manufacturing systems are equipped with advanced sensing capabilities. However, traditional statistical process control methods are not concerned with the stream of in-process imaging data. Also, very little has been done to investigate nonlinearity, irregularity, and inhomogeneity in image stream collected from manufacturing processes. This paper presents the multifractal spectrum and lacunarity measures to characterize irregular and inhomogeneous patterns of image profiles, as well as detect the hidden dynamics of the underlying manufacturing process. Experimental studies show that the proposed method not only effectively characterizes the surface finishes for quality control of ultra-precision machining but also provides an effective model to link process parameters with fractal characteristics of in-process images acquired from additive manufacturing. This, in turn, will allow a swift response to processes changes and consequently reduce the number of defective products. The proposed fractal method has strong potentials to be applied for process monitoring and control in a variety of domains such as ultra-precision machining, additive manufacturing, and biomanufacturing.

Vocal Pedagogy in the Choral Rehearsal

2017 ◽  
Author(s):  
Duane Cottrell
Keyword(s):  
Scientific Research ◽  
Vocal Pedagogy ◽  
Practical Implementation ◽  
Vocal Production ◽  
Vocal Technique ◽  
Choral Conductors ◽  
Choral Singing ◽  
Choral Rehearsal ◽  
Choral Tone ◽  
The Individual

One of the primary endeavors of choral conductors is the facilitation of good choral tone, which is largely dependent upon the vocal technique of the individual singers. This chapter examines principles of historical vocal pedagogy, discussing their correlation with modern scientific research, and present suggestions for practical implementation of specific techniques in choral rehearsals. The chapter discusses four primary areas of vocal pedagogy in choral rehearsals: first, the significance of laryngeal position in choral singing; second, principles of resonance in singing and their impact on the choral sound; third, a discussion of breath support in choral singing; and fourth, principles of phonation and vocal production for singers in a choral setting. Each of these four discussions contain practical suggestions for the application of specific practices and exercises that will strengthen the vocal technique of choral singers.

scholarly journals Development of a condition monitoring system for the refractory lining of induction crucible steelmaking furnaces

Vestnik IGEU ◽  
2019 ◽  
pp. 58-66
Author(s):  
I.Yu. Dolgikh ◽  
M.G. Markov
Keyword(s):  
Monitoring System ◽  
Refractory Lining ◽  
Control Object ◽  
Practical Implementation ◽  
Microprocessor System ◽  
Induction Melting ◽  
Monitoring And Control ◽  
Operation Conditions ◽  
Emergency Shutdown ◽  
Wide Range

A wide range of technological advantages of induction crucible melting furnaces makes their use in various sectors of metallurgical production relevant. However, hard operation conditions of the refractory lining of such furnaces makes it necessary to constantly monitor its condition, with the aim to extend the crucible life and prevent emergencies. Moreover, traditional methods based on the use of a bottom electrode and indication of current leakage to earth do not provide a continuous display of the lining destruction degree and make it possible to register only a critical level that requires an emergency shutdown and emptying of the furnace. This circumstance makes it necessary to develop and implement specialized electrical systems with a monitoring and control system that ensures the determination and visualization of the lining wear level and, if necessary, makes an emergency shutdown of the equipment from the power source. The developed complex is based on a microprocessor system that continuously measures the temperature at the control points at the boundary between the bottom and crucible base layers and compares the obtained values with the settings, which are determined previously on a two-dimensional axisymmetric model of the designed furnace by solving the stationary heat conduction equation at various levels of lining failure. We have developed the structure, scheme, and program for a microprocessor-based monitoring and emergency shutdown system of an induction furnace, as well as a mathematical model of the control object, which allows determining the temperature settings. The reliability of the results is confirmed by the applicability of the models to real objects, and is verified by debugging the microprocessor part in the MPLab-Sim and Proteus programs. The obtained results can be used in the practical implementation of the monitoring system and emergency shutdown of induction melting furnaces, which allows increasing the safety of their operation and extending the lining life due to timely repair.

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