Issue №: 3(122)
The journal deals with the problems of vibration technologies and machines, mathematical methods of vibration process studies, information on design and technological development, presents teaching and methodological aspects of teaching in the Higher School of Applied Sciences, where vibration machines and technologies are studied.
INFLUENCE OF CONTROL SYSTEM PARAMETERS ON THE DYNAMIC CHARACTERISTICS OF AN ELECTROHYDRAULIC DRIVE WITH PASSIVE LOAD
Dmytro Lozinskyi - Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Technologies and Automation of Mechanical Engineering, Vinnytsia National Technical University, 95 Khmelnytske Shose, Vinnytsia, 21021, Ukraine; e-mail: lozinskiy_dmitriy@vntu.edu.ua; phone: 380964903705; ORCID: https://orcid.org/0000-0002-1077-1621.
Oleksii Syrotin - postgraduate student of the Department of Technologies and Automation of Mechanical Engineering, Vinnytsia National Technical University, 95 Khmelnytske Shose, Vinnytsia, 21021, Ukraine; e-mail: 00-23-066.stud@vntu.vn.ua; phone: 380685150040; ORCID: https://orcid.org/0009-0002-4992-3845.
The article considers the influence of control system parameters on the dynamic characteristics of an electrohydraulic drive operating with a passive load. The object of the study is an electrohydraulic drive with a proportional electrohydraulic directional valve and a double-acting hydraulic cylinder, in which the controlled coordinate is the displacement of the cylinder rod. The study is carried out for operating conditions in which the passive load forms an external force disturbance and affects the inertial properties of the actuator. Such conditions are typical for technological and mobile machines, where positioning quality depends on the coordination of the hydraulic part, the load and the control algorithm. A mathematical model of a closed-loop position control system is developed. The model takes into account the dynamics of the proportional valve, the oscillatory properties of the hydraulic system, the inertia of moving masses, the integrating action of the hydraulic cylinder and the influence of the external load. Based on this model, a simulation study of transient processes is performed for proportional, proportional-integral and proportional-integral-differential control laws. The analysis focuses on how changes in the controller structure and its components affect the response speed, oscillatory behavior, overshoot and steady-state error of the system. The operation of the drive is also analyzed under conditions in which the mass of the passive load changes while the control parameters remain unchanged. This approach makes it possible to evaluate the sensitivity of the closed-loop system to changes in operating conditions and to describe the nature of the load influence on transient characteristics. The article presents the sequence of model development, the selection of the control system structure, comparative simulation procedures and the analysis of relationships between controller parameters, hydraulic system properties and passive load.
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About the journal
The journal "Vibrations in Engineering and Technologies" is included in the list of technical scientific publications of Ukraine
(Category "B", Order of the Ministry of Education and Science of Ukraine dated July 2, 2020 No. 886)
Old version of the site: http://vibrojournal.vsau.edu.ua/
The journal "Vibrations in Engineering and Technology" is indexed by the following databases and catalogs:
The certificateof massmedia State registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University
The journal is devoted to highlighting current issues in engineering, mechanical engineering, and technological processes, including the study of dynamic and oscillatory phenomena in technical systems, the application of mathematical methods for process modeling and analysis, as well as the presentation of results of design-engineering and technological developments. Particular attention is given to the study of vibration processes and their application in modern technologies.
The purpose of the scientific journal “Vibrations in Engineering and Technologies” is to disseminate the results of fundamental and applied research in the field of engineering sciences aimed at developing theoretical foundations and practical approaches to the design, analysis, and improvement of machines, materials, and technological processes, including the use of vibration and oscillatory effects in various sectors of production.
The publication is focused on the formation of a modern scientific and informational environment for the effective exchange of research results, support of innovative development, and implementation of advanced technical solutions in industry, agro-industrial production, and related fields.
The journal promotes the development of interdisciplinary research, the integration of modern engineering approaches, and the enhancement of the efficiency of technological processes and technical systems, including through the rational use of vibration phenomena.
Objectives of the Scientific Journal
To achieve its stated purpose, the journal addresses the following key objectives:
dissemination of results of fundamental and applied scientific research in the fields of mechanics, mechanical engineering, technological processes, machine dynamics, and equipment, as well as in areas related to the application of vibration phenomena in engineering and technologies;
promotion of research aimed at the creation and improvement of machines, mechanisms, and technological equipment based on oscillatory and vibration processes;
support for the implementation of modern technological solutions focused on improving productivity, energy efficiency, and reliability of technical systems;
обеспечение scientific exchange of research results among research institutions, higher education establishments, and industrial enterprises;
development of interdisciplinary cooperation among researchers in the fields of mechanics, materials science, material processing technologies, and automation of technological processes;
dissemination of modern scientific achievements and advanced technologies related to the application of vibration processes in production and technical systems.
Publisher Vinnytsia National Agrarian University
In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published 119 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Ihor Kupchuk, Candidate of Technical Sciences, Associate professor, Associate Professor of the Department of Engineering Mechanics and Technological Processes in the Agricultural Industry Faculty of Engineering and Technology Vinnytsia National Agrarian University is the chief editor of the "Vibrations in engineering and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.
