scholarly journals COMPLEX TOOLS FOR INCREASING THE EFFICIENCY OF THE PRODUCTION SYSTEM OF A MACHINE-BUILDING ENTERPRISE

2021 ◽  
Vol 23 (2) ◽  
pp. 5-10
Author(s):  
V.N. Kozlovskiy ◽  
◽  
D.I. Blagoveshchenskiy ◽  
D.I. Panyukov ◽  
D.V. Aidarov ◽  
...  
Keyword(s):  
Production System ◽  
Production Systems ◽  
Machine Building ◽  
Building Enterprise ◽  
Assembly Plants

The article presents the results of the development and implementation of comprehensive tools for increasing efficiency in modern production systems of car assembly plants.

scholarly journals Models for Managing Production Systems of Machine-Building Enterprises Based on the Development and Using of Their Digital Twins

2021 ◽  
Vol 248 ◽  
pp. 04015
Author(s):  
Vitalii A. Dolgov ◽  
Petr. A. Nikishechkin ◽  
Vladimir E. Arkhangelskii ◽  
Pavel I. Umnov ◽  
Alexey A. Podkidyshev
Keyword(s):  
Production System ◽  
Production Systems ◽  
Information Model ◽  
Machine Building ◽  
Digital Twin ◽  
Reliability Indicators ◽  
Digital Twins ◽  
Rational Algorithm ◽  
Building Enterprise ◽  
Traditional Approaches

The paper discusses the goals and objectives of creating digital twins of the production system of a machine-building enterprise. The data structure of the information model of the production system of a machine-building enterprise, which is the basis for building a digital twin, is presented. The paper shows the main approaches to managing a production system based on the construction of its digital twin. It is revealed that along with traditional approaches to PS management by forming recommendations in terms of PS engineering and its operation, the choice of the most rational PS management algorithms that take into account the peculiarities of the production process organization and ensure the formation of production schedules that take into account PS reliability indicators has a great potential. It is proposed to use a specialized language of DPML to describe the information model of the PS through the “product-process-resource” paradigm, which ensures the coordination of the processes of forming recommendations in terms of engineering and operation of the PS, as well as the choice of the most rational algorithm for managing the PS.

Design of machine-building workshops and sites

2018 ◽  
Author(s):  
Анатолий Бойко ◽  
Anatoliy Boyko ◽  
Анатолий Погонин ◽  
Anatoliy Pogonin ◽  
Александр Афанасьев ◽  
...  
Keyword(s):  
Theoretical Basis ◽  
Production Systems ◽  
Automated Design ◽  
Machine Building ◽  
Design System ◽  
Mechanical Assembly ◽  
Structural Units ◽  
Building Enterprise

The textbook "Designing of machine-building workshops and sites" is a publication created on the basis of a modern methodology for designing production systems with specified properties, using an automated design system. Since the main structural units of the machine-building enterprise are mechanical and Assembly shops and sites, so they are paid special attention in the textbook. The theoretical basis of the discipline blended with a large amount of calculations of stalemate machining and mechanical Assembly processes, personnel, production prompdy and examples of designing the different purpose areas.

scholarly journals Machine-Building Enterprise Work Improvement Based on Application of the Process Approach

2021 ◽  
Vol 346 ◽  
pp. 03020
Author(s):  
Evgenii V. Kalinin ◽  
Ludmila L. Kalinina ◽  
Dmitrii A. Metelev
Keyword(s):  
Complex System ◽  
Production System ◽  
Social System ◽  
Human Factor ◽  
Machine Building ◽  
Process Approach ◽  
Practical Work ◽  
Increase In Productivity ◽  
Building Enterprise ◽  
Modern Machine

Any modern machine-building enterprise is a complex system consisting of many organizational elements with clearly defined functions, boundaries and resources. The size of these resources determines the planned productivity of the enterprise. At the same time, an enterprise is a social system that has non-linear properties, since the human factor is involved. Therefore, situations are possible where even small beneficial changes in the nature of the interaction in the production system can cause a significant increase in productivity. However, situations are also possible when large transformations that consume significant resources do not lead to desired achievements or even worsen the existing state. This article discusses the application of process-oriented thinking in the practical work of an enterprise at all its levels.

The Determination of Noxes Emissions in Case of Manual Arc Welding Process with Coated Electrode

2018 ◽  
Vol 69 (7) ◽  
pp. 1826-1829
Author(s):  
Claudiu Babis ◽  
Augustin Semenescu ◽  
Oana Roxana Chivu ◽  
Maria Alina Gligor ◽  
Gabriel Iacobescu ◽  
...  
Keyword(s):  
Production System ◽  
Arc Welding ◽  
Welding Process ◽  
Practical Method ◽  
Machine Building ◽  
Short Exposure ◽  
Metal Bath ◽  
Coated Electrode ◽  
Manual Arc Welding ◽  
Arc Welding Process

The occupational risk assessment of a machine building company must cover each activity and workstation, taking into account each component of the production system (work system), each workload, work equipment and the work environment. This assessment is an extremely complicated and complex issue since the production system of such an enterprise is particularly complex and complicated. Welding assembly is a highly polluting technology process, especially of the atmosphere and soil. The formation of gases in the welding process is the result of burning of the electrodes, powders, forming the molten metal bath and making the weld seam. Welding operators are exposed to smoke and toxic gases resulting from the welding process, which can in many cases be hazardous to health. Many acute intoxications that may be caused by excessive exposure to or short exposure to smoke and gas resulting from the welding process have been studied over time. In the paper are presented the elements of risk related to the welding process and the most widespread occupational diseases that can occur in the ranges of the welding operators. The following are presented the noxious emissions from welding and are determined by a practical method the emission of noxious at welding deposition of a welding sample, using the manual arc welding process with coated electrode.

scholarly journals Soil Bacterial Community Diversity and Composition as Affected by Tillage Intensity Treatments in Corn-Soybean Production Systems

2021 ◽  
Vol 12 (1) ◽  
pp. 157-172
Author(s):  
Shankar G. Shanmugam ◽  
Normie W. Buehring ◽  
Jon D. Prevost ◽  
William L. Kingery
Keyword(s):  
Microbial Community ◽  
Bacterial Community ◽  
Community Composition ◽  
Production System ◽  
Soil Microbial Community ◽  
Production Systems ◽  
Bacterial Community Composition ◽  
Soybean Production ◽  
Soil Microbial ◽  
Soil Bacterial

Our understanding on the effects of tillage intensity on the soil microbial community structure and composition in crop production systems are limited. This study evaluated the soil microbial community composition and diversity under different tillage management systems in an effort to identify management practices that effectively support sustainable agriculture. We report results from a three-year study to determine the effects on changes in soil microbial diversity and composition from four tillage intensity treatments and two residue management treatments in a corn-soybean production system using Illumina high-throughput sequencing of 16S rRNA genes. Soil samples were collected from tillage treatments at locations in the Southern Coastal Plain (Verona, Mississippi, USA) and Southern Mississippi River Alluvium (Stoneville, Mississippi, USA) for soil analysis and bacterial community characterization. Our results indicated that different tillage intensity treatments differentially changed the relative abundances of bacterial phyla. The Mantel test of correlations indicated that differences among bacterial community composition were significantly influenced by tillage regime (rM = 0.39, p ≤ 0.0001). Simpson’s reciprocal diversity index indicated greater bacterial diversity with reduction in tillage intensity for each year and study location. For both study sites, differences in tillage intensity had significant influence on the abundance of Proteobacteria. The shift in the soil bacterial community composition under different tillage systems was strongly correlated to changes in labile carbon pool in the system and how it affected the microbial metabolism. This study indicates that soil management through tillage intensity regime had a profound influence on diversity and composition of soil bacterial communities in a corn-soybean production system.

scholarly journals Some methods of improving the quality of electronic archives at the machine-building enterprise

2021 ◽  
Vol 190 ◽  
pp. 18-22
Author(s):  
Polina Abrosimova ◽  
Stepan Sivkov ◽  
Galina Romanova ◽  
Alexandr Mashkin
Keyword(s):  
Machine Building ◽  
Building Enterprise

A New Procedure of Production Orders Sequencing in Mixed-Model Production Systems

2014 ◽  
Vol 1036 ◽  
pp. 864-868 ◽  
Author(s):  
Marcin Zemczak ◽  
Damian Krenczyk
Keyword(s):  
Task Scheduling ◽  
Production System ◽  
Mixed Model ◽  
Production Systems ◽  
Production Capacity ◽  
Approximate Solutions ◽  
Task Sequence ◽  
Optimal Method ◽  
Sequencing Problem ◽  
Car Sequencing

The paper presents the task scheduling issue, which main aim is to establish a proper sequence of tasks, that would maximize the utilization of companys production capacity. According to the literature sources, the presented sequencing problem, denoted as CSP (Car Sequencing Problem) belongs to the NP-hard class, as has been proven by simple reduction from Hamiltonians Path problem. Optimal method of solution has not yet been found, only approximate solutions have been offered, especially from the range of evolutionary algorithms. Regardless of specific production system, while considering reception of new tasks into the system, current review of the state of the system is required in order to decide whether and when a new order can be accepted for execution. In this paper, the problem of task scheduling is limited to the specific existing mixed-model production system. The main goal is to determine the effective method of creation of task sequence. Through the use of computational algorithms, and automatic analysis of the resulting sequence, rates of production are able to be checked in a real time, and so improvements can be proposed and implemented.

scholarly journals Using Computer Simulation Method to Improve Throughput of Production Systems by Buffers and Workers Allocation

2015 ◽  
Vol 6 (4) ◽  
pp. 60-69 ◽  
Author(s):  
Sławomir Kłos ◽  
Peter Trebuna
Keyword(s):  
Computer Simulation ◽  
Production System ◽  
Production Systems ◽  
Simulation Method ◽  
System Throughput ◽  
Buffer Allocation ◽  
Simulation Experiments ◽  
Buffer Capacities ◽  
The Relationship ◽  
Support Decision Making

Abstract This paper proposes the application of computer simulation methods to support decision making regarding intermediate buffer allocations in a series-parallel production line. The simulation model of the production system is based on a real example of a manufacturing company working in the automotive industry. Simulation experiments were conducted for different allocations of buffer capacities and different numbers of employees. The production system consists of three technological operations with intermediate buffers between each operation. The technological operations are carried out using machines and every machine can be operated by one worker. Multi-work in the production system is available (one operator operates several machines). On the basis of the simulation experiments, the relationship between system throughput, buffer allocation and the number of employees is analyzed. Increasing the buffer capacity results in an increase in the average product lifespan. Therefore, in the article a new index is proposed that includes the throughput of the manufacturing system and product life span. Simulation experiments were performed for different configurations of technological operations.

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