scholarly journals Models of fuzzy logic in the processes of verification of the required level of automation of technological processes research and production complexes

2021 ◽  
Vol 1889 (4) ◽  
pp. 042071
Author(s):  
S A Nazarevich ◽  
A V Vinnichenko
Keyword(s):  
Fuzzy Logic ◽  
Technological Processes ◽  
Level Of Automation

Analysis of technological preparation of enterprises for maintenance and repair of railcars

Innotrans ◽  
2020 ◽  
pp. 44-50
Author(s):  
Vasily F. Lapshin ◽  
◽  
Elena V. Zelyukova ◽  
Oksana A. Mironova ◽  
◽  
...  
Keyword(s):  
Scientific Organization ◽  
Rolling Stock ◽  
Car Industry ◽  
Factors Affecting ◽  
Maintenance And Repair ◽  
Technological Processes ◽  
Level Of Automation ◽  
Technological Preparation ◽  
Technological Documentation

The paper analyzes the technological preparation of production at the railcar enterprises in terms of developing technological processes and processing sets of technological documents. Factors affecting the quality of technological preparation of production for maintenance and repair of rolling stock are considered. In contrast to the previously performed works, where the assessment of the level of technological training was carried out by experts of a scientific organization, the initial data in the article were the results of a survey of specialists of technical departments of structural divisions of the car industry of the Sverdlovsk and South Ural Railways. Based on the method of expert qualimetry, the weight of factors that have the greatest impact on the quality of technological processes is estimated. As a result of the survey, a low level of automation of design processes was established, which consists mainly in the design of technological documentation. It is shown that the degree of depth of development and detail of technological processes is at the level of the route description

scholarly journals Synthesis of the Structure of Technological Processes

2020 ◽  
Vol 30 (2) ◽  
pp. 287-299
Author(s):  
Sergey Yu. Kalyakulin ◽  
Vladimir V. Kuzmin ◽  
Eduard V. Mitin ◽  
Sergey P. Suldin ◽  
Tatiana B. Tyurbeeva
Keyword(s):  
Current Status ◽  
General Level ◽  
Technical Documentation ◽  
Technological Processes ◽  
Level Of Automation

Introduction. The purpose of the study is to increase the level of automation of the technical documentation development through solving a problem of synthesis of the structure of technological processes. Materials and Methods. The authors reviewed the current status of the issue of developing the automated structure for technological processes that have shown the complexity of its formalization because of a considerable quantity of factors which must be considered in developing. The algorithm for solving these tasks based on synthesis of technological processes has been developed. Results. The authors identified the relations between the parameters of the structure of technological processes based on the formation of many admissible transitions. The generalized algorithm on the basis of the synthesis is developed. Discussion and Conclusion. The tasks solved in this article allow increasing the level of automation of calculation of the parameters in systems of automated designing. The implementation of the algorithm for designing technological processes, which is developed on the basis of synthesis, allows increasing the general level of automation of designing technological processes.

Application Features of Fuzzy Logic for Automation Tasks in Agricultural Technological Processes

2018 ◽  
Vol 19 (1) ◽  
pp. 40-46
Author(s):  
A. P. Grishin ◽  
◽  
A. A. Grishin ◽  
V. A. Grishin ◽  
Z. A. Godzhaev ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Technological Processes

scholarly journals Application of Methods of Fuzzy Logic and Neural Networks for Automation of Technological Processes in Oil and Gas Engineering and Increasing the Efficiency of Oil Production

2021 ◽  
Vol 19 (2) ◽  
pp. 83
Author(s):  
A M Sagdatullin
Keyword(s):  
Neural Networks ◽  
Fuzzy Logic ◽  
Oil And Gas ◽  
Oil Production ◽  
Technological Processes

В данной работе рассматривается вопрос повышения эффективности функционирования насосных систем, как наиболее энергоемкой части нефтегазового месторождения. Обоснована актуальность темы исследования для нефтегазового машиностроения, сформулирована основная цель исследования, заключающаяся в цифровизации рассматриваемых процессов и создании отечественных систем автоматического управления с применением алгоритмов нечеткой логики и нейронных сетей. Рассмотрены методы построения современных систем управления, проанализированы их достоинства и недостатки. Рассмотрены особенности различных подходов к построению систем автоматического управления технологическими объектами при добыче и транспортировке нефти. Наиболее распространенными являются метод прямого цифрового управления или метод с применением обратных связей. Представлено классическое описание объектов автоматизации и телемеханизации на основе параметров систем. Приведены основные характеристики рассматриваемых технологических процессов, таких как добыча, подготовка и транспортировка нефти, не позволяющие добиться максимальной эффективности в существующем подходе. Выявлены наиболее важные факторы для эффективных систем автоматического управления данными объектами. Полученные экспериментальные данные показали, что параметры технологического процесса варьируются в значительных пределах от номинальных значений, что приводит к невысокому качеству работы регуляторов. Точность моделей идентификации системы на основе линейных авторегресинных методов составляет не более 30 %. Сделан вывод о необходимости применения для управления нелинейными объектами с присущими неопределенностями на основе нейронечетких и нечетких регуляторов с дискретными термами.

scholarly journals Developing a Mathematical Model of a Part Based on Graphics System Models

2019 ◽  
pp. 67-76
Author(s):  
Sergey Yu. Kalyakulin ◽  
Vladimir V. Kuzmin ◽  
Eduard V. Mitin ◽  
Sergey P. Suldin ◽  
Tatiana B. Tyurbeeva
Keyword(s):  
Mathematical Model ◽  
Computer Aided Design ◽  
Geometric Shape ◽  
Design Parameters ◽  
Technological Processes ◽  
Calculation Of Parameters ◽  
Level Of Automation ◽  
Computer Aided ◽  
Design Systems ◽  
Aided Design

Introduction. The aim of the work is to develop a mathematical model of a part based on a parametric model of graphic systems. Material and Methods.The review of the status of the question of developing a mathematical model of a part based on graphic systems showed the possibility of controlling the geometric shape of a part through the variables of a parameterized drawing. A proposal was made to use design parameterization in the calculation of the parameters of technological processes in computer-aided design systems. Results. The article establishes links between the design parameters of the part drawing and tabular values of the variables. The revealed relationships between the parameters in the drawing and the variables in the table make it possible to change the geometric shape of the part by changing the values in the variable table, i.e. the drawing is managed through the table. It is proposed to use this system of work with the parametric drawing in computer-aided design systems for calculating the parameters of technological processes. Discussion and Conclusion. The tasks solved in this article allow making a step in increasing the level of automation of parameter calculations in computer-aided design systems. The implementation of the developed methodology for constructing mathematical models of parts based on graphic systems will increase the overall level of automation of developing geometric drawings of parts. The implementation of this technique in computer-aided design systems allows automating the calculation of parameters (cutting modes, time norms, technological dimensions on transitions, etc.).

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