scholarly journals Multiagent modeling of production logistics in the creation of high-tech products

2021 ◽  
pp. 74-83
Author(s):  
Oleg Fedorovich ◽  
Liudmyla Lutai
Keyword(s):  
Life Cycle ◽  
System Analysis ◽  
High Tech ◽  
Production Cycle ◽  
Main Stage ◽  
Production Logistics ◽  
Production Processes ◽  
Component Architecture ◽  
Agent Simulation ◽  
Distributed Production

Economic instability and stochastic behavior of the market lead to the need to develop new methods and models to reduce the life cycle of high-tech products. Therefore, the urgent task is a detailed consideration and analysis of each main stage of the life cycle of creating complex technical products. The current study develops a method for optimizing production processes. The subject of research is a production planning and management as the main stage of the life cycle. The method proposed in the publication is based on the component architecture of the created innovative high-tech product, which is obtained because of decomposition at the initial stage of design. Modern production is of distributed nature. While planning production, it is necessary to pay attention to the management and synchronization of material and other types of flows in the logistics chain of distributed production. To form a set of basic and subsidiary operations of distributed production, it is necessary to consider the logistical features, the level of decomposition of the component architecture of the created product, as well as the type of component in the production cycle. Logistics operations are conducted following the requirements for the relevant indicators, namely, the cost of the operation, quality, competitiveness, innovation, the risk of the operation. The main criterion for optimization is the duration of operations. The work uses multi-agent simulation modeling of a sequential logistics chain of production processes, as well as mathematical models and methods: system analysis, optimization using integer programming, multi-criteria optimization, and expert evaluations. The method reduces the duration of the production cycle for the manufacture of individual components of the complex architecture of high-tech products by determining the optimal set of production and ancillary logistics operations for each component, considering the requirements for key production indicators, which minimize production time of high-tech products.

scholarly journals МЕТОД ФОРМУВАННЯ ЛОГІСТИЧНИХ ТРАНСПОРТНИХ ВЗАЄМОДІЙ ДЛЯ НОВОГО ПОРТФЕЛЮ ЗАМОВЛЕНЬ РОЗПОДІЛЕНОГО ВІРТУАЛЬНОГО ВИРОБНИЦТВА

2020 ◽  
pp. 102-108
Author(s):  
Олег Євгенович Федорович ◽  
Юрій Леонідович Прончаков
Keyword(s):  
Simulation Model ◽  
System Analysis ◽  
Search Algorithm ◽  
Raw Materials ◽  
Transport Network ◽  
Route Optimization ◽  
High Tech ◽  
Virtual Production ◽  
Agent Simulation ◽  
Transportation Simulation

The subject of research in the paper is to organize the logistics of interactions in a distributed virtual manufacture of high-tech products. The work aims to develop the method to find rational routes in the heterogeneous transport network, considering the time (deadlines), costs, and risks. The article addresses the following tasks: research of logistics interactions across the virtual manufacture of high-tech products (aircraft, automotive, etc.). Logistic interactions are carried out in a heterogeneous transport network that connects individual technological processes of high-tech manufacture. The features of logistics related to the virtualization of manufacture in the form of the new portfolio of orders are analyzed. The suppliers of materials, raw materials, and components that are located in the nodes of the heterogeneous transport network and which are the sources of goods transported in the distributed virtual manufacture are determined. To assess the possible routes of goods transportation in the heterogeneous transport network the values of time (deadlines of goods delivery), as well as freight costs and risks, are considered. The purposeful search for rational routes is carried out using the proposed algorithm for generating and moving numerical "waves" in a heterogeneous transport network. The simulation model to simulate the process of numerical “wave” propagation using planning and implementing of events related to the arrival of goods transported to the nodes of the heterogeneous transport network has been built. The algorithm to simulate the flow of requests in neighboring nodes concerning the node of the considered heterogeneous transport network has been developed. The dead-end nodes and possible parallel paths of equal types of transportation combining neighboring nodes are considered. The built algorithm includes two different phases of simulation: to achieve the “final” node and the inverse phase that is to define the route. The search algorithm is universal and makes it possible to find the routes with minimal time of goods transportation, minimal costs, and risks. The search for a compromise route that satisfies the conflicting criteria of time, cost, and risk has been proposed. The method of rational routes search is designed in the form of the agent simulation model. The following methods are used in the article: system analysis to create the topology of heterogeneous transport network structure; graph theory to represent the flows and routes of goods transportation; simulation to generate and move numerical "waves"; route optimization based on simulation; multi-criteria optimization to find the rational route; agent-oriented simulation to create the routes in the heterogeneous transport network. Conclusions: the proposed method to find the rational routes in a heterogeneous transport network of distributed virtual manufacture allows organizing the logistics transport interactions in distributed virtual production at the initial stages of planning of the new portfolio of orders.

scholarly journals ОПТИМІЗАЦІЯ ЖИТТЄВОГО ЦИКЛУ СТВОРЕННЯ НОВОЇ ТЕХНІКИ В УМОВАХ КОНКУРЕНЦІЇ ТА СТОХАСТИЧНОЇ ПОВЕДІНКИ РИНКУ ЗБУТУ ВИСОКОТЕХНОЛОГІЧНОЇ ПРОДУКЦІЇ

2020 ◽  
pp. 80-85
Author(s):  
Олег Євгенович Федорович ◽  
Олег Семенович Уруський ◽  
Людмила Миколаївна Лутай ◽  
Ксенія Олегівна Западня
Keyword(s):  
Life Cycle ◽  
System Analysis ◽  
Capacity Constraints ◽  
New Technique ◽  
High Tech ◽  
Short Term ◽  
Stochastic Behavior ◽  
Initial Stage ◽  
Expert Assessments ◽  
Competitive Products

The task to optimize the life cycle of new technique (aerospace, engineering products, etc.) in difficult economic conditions is stated and solved. The aim of the study is to develop a method to reduce the life cycle of complex technique creation. The subject of the research is the planning and management of the life cycle of complex technique in a highly competitive environment and stochastic behavior of high-tech products market. The paper shows the contradictions between the planned nature of modern production, which operates in conditions of Industry 4.0 and the stochastic behavior of the market. This contradiction leads to the relevance of short-term production plans with minimal risks. Therefore, the planning of the production system is carried out based on the portfolio that can be done in the short term. When planning new orders, it is necessary to shorten the life cycle of new equipment creation by analyzing the main stages: design, preparation of production, production. The optimization model to select the measures (project actions) at the initial stage of the life cycle is proposed. In order to generate the set from which the alternative options for activities are selected, expert assessments being ordered on the basis of the importance of time indicators, competitiveness, innovation, costs and risks are used. Simulation of the shortening of the new technique creation life cycle at a time of capacity constraints of production that creates high-tech products is carried out. The following mathematical models and methods are used: system analysis, optimization using integer programming, multi-criteria optimization, expert assessments, simulation modeling, agent-based modeling, risk assessment. The method allows to create competitive products at a time of capacity constraints by means of planning to shorten the life cycle of new technique creation and resources management.

APPROACHES TO BUILDING THE LIFE CYCLE OF ONBOARD EQUIPMENT FOR THE EFFECTIVE USE OF DIGITAL TWINS

2020 ◽  
Vol 1 (12) ◽  
pp. 25-31
Author(s):  
S. D. PLESHAKOV ◽  
Keyword(s):  
Life Cycle ◽  
Life Cycle Management ◽  
High Tech ◽  
Production Cycle ◽  
Digital Twins ◽  
Effective Operation ◽  
Effective Use ◽  
Lifecycle Management ◽  
Onboard Equipment

Lifecycle management of high-tech products plays an important role in ensuring the effective operation of all entities involved in its production. The peculiarity of life cycle management lies in the intensification, reduction of the production cycle, it is this aspect that is key in high-tech industries. The proposed work formulates the main stages of modeling digital twins of onboard equipment, the concept of the structure of the life cycle of onboard equipment of rocket and space products, built using digital twins.

scholarly journals Вибір постачальників для виробництва високотехнологічної продукції з урахуванням довгих логістичних ланцюгів постачання вантажів

2021 ◽  
pp. 75-81
Author(s):  
Олег Євгенович Федорович ◽  
Юрій Леонідович Прончаков ◽  
Ксенія Олегівна Рибка ◽  
Юлія Олександрівна Лещенко
Keyword(s):  
Supply Chains ◽  
System Analysis ◽  
Raw Materials ◽  
Road Transport ◽  
Product Formation ◽  
Transport Network ◽  
High Tech ◽  
Mathematical Methods ◽  
Complex Product ◽  
Component Architecture

The scientific and applied problem of choosing suppliers of components, materials, and raw materials (CMRM) for the production of high-tech products (aircraft construction, shipbuilding, etc.) with a complex multi-level component architecture of the product is posed and solved. Much attention is paid to the study of long logistic supply chains for CMRM, considering the heterogeneous transport network (aviation transport, rail transport, road transport, etc.) with the transition of goods from one highway to another. The relevance of the topic of the publication is related to the study of the influence of the remoteness of suppliers and the heterogeneity of the transport network on the timing, costs, and risks of delivering CMRM to the production of high-tech products, considering the long supply chains that ensure the interaction between the supplier and the manufacturer. The research solves the problem of a rational choice of suppliers, considering the logistics of CMRM delivery in a heterogeneous transport environment. Due to the complexity of the problem being solved, it is complex and includes the following research stages: selection of suppliers, considering the component architecture of a complex product; formation of a logistics chain for the delivery of CMRM; a study of the effect of cargo transshipment in a heterogeneous transport environment. The solution of the second problem is associated with the choice of optimal logistics chains for the delivery of CMRM from the supplier to the manufacturers. The solution to the third problem is based on modeling the movement of goods, considering transshipment and possible risks. Mathematical methods used system analysis to represent the component architecture of a complex product; integer (boolean) programming to optimize the main logistic indicators; agent-based simulation modeling for the study of logistics chains for the delivery of goods with transshipment and possible risks (climatic, pandemic, terrorist, etc.).

scholarly journals ИССЛЕДОВАНИЕ ЛОГИСТИКИ УПРАВЛЕНИЯ ПРОИЗВОДСТВОМ ВЫСОКОТЕХНОЛОГИЧЕСКОЙ ПРОДУКЦИИ ВИРТУАЛЬНОГО ПРЕДПРИЯТИЯ

2018 ◽  
pp. 107-115
Author(s):  
Олег Евгеньевич Федорович ◽  
Олег Викторович Сломчинский ◽  
Вадим Алексеевич Пуйденко
Keyword(s):  
System Analysis ◽  
Quality Management System ◽  
Virtual Enterprise ◽  
Complex Problem ◽  
Machine Building ◽  
High Tech ◽  
Production Cycle ◽  
Complex Task ◽  
Integer Optimization ◽  
Communication Links

It is stated and solved the complex task related to the arrangement and management of the virtual enterprise (VE) in the aerospace industry where high-tech innovative products produced. The complex task divided into several stages. At the first stage, the task of building a portfolio of VE orders solved. In order to do this, the state of the high-tech products market is analyzed to identify the competitive products. The alternatives of the order portfolio compared and evaluated considering the costs, timing, and risks of output. The composition of the VE enterprises selected at the second stage of the built portfolio of orders. For this purpose, the enterprises selected according to the principle of subject orientation considering the possible costs associated with the adaptation of the selected enterprises to fulfill the order portfolio. The info-communication links to manage the VE formed at the third stage. The cost and capacity of the communication equipment for transmission of control and technological information within the framework of the VE taken into consideration. The production cycle of the VE formed at the fourth stage considering the logistics requirements. The characteristics of the logistics chain "supply-production-sale" for each enterprise in the composition of the VE taken into consideration. At the fifth stage, the quality management system of the VE production considered. In order to ensure the quality, the corresponding activities that affect not only the quality of the product in the logistics chain but also the whole production processes (both basic and auxiliary) are carried out. At the sixth stage, the logistics processes of VE supplying and marketing optimized. The optimization of supply and marketing processes provides a reduction of product cost as well as the increased competitiveness in the market of high-tech products. The proposed tasks are logically related to each other and aimed at ensuring the competitiveness of domestic machine-building enterprises (aircraft construction, shipbuilding, etc.). In order to solve the proposed complex problem the methods of system analysis, integer optimization, simulation, agent and knowledge-oriented modeling are used. The proposed approach allows to justify the order portfolio, make the organizational structure of the enterprise, build the info-communication interaction between the executors, justify the quality requirements and also to organize the logistics chain of supply, supply, production and marketing of high-tech products, taking into account the terms of fulfilling the order portfolio and optimizing costs that is very important for domestic aircraft building

scholarly journals Environmental Consequences of Closing the Textile Loop—Life Cycle Assessment of a Circular Polyester Jacket

2021 ◽  
Vol 11 (7) ◽  
pp. 2964
Author(s):  
Gregor Braun ◽  
Claudia Som ◽  
Mélanie Schmutz ◽  
Roland Hischier
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Circular Economy ◽  
Textile Industry ◽  
System Analysis ◽  
Action Plan ◽  
The European Union ◽  
Environmental Consequences ◽  
Energy And Material Flows

The textile industry is recognized as being one of the most polluting industries. Thus, the European Union aims to transform the textile industry with its “European Green Deal” and “Circular Economy Action Plan”. Awareness regarding the environmental impact of textiles is increasing and initiatives are appearing to make more sustainable products with a strong wish to move towards a circular economy. One of these initiatives is wear2wearTM, a collaboration consisting of multiple companies aiming to close the loop for polyester textiles. However, designing a circular product system does not lead automatically to lower environmental impacts. Therefore, a Life Cycle Assessment study has been conducted in order to compare the environmental impacts of a circular with a linear workwear jacket. The results show that a thoughtful “circular economy system” design approach can result in significantly lower environmental impacts than linear product systems. The study illustrates at the same time the necessity for Life Cycle Assessment practitioners to go beyond a simple comparison of one product to another when it comes to circular economy. Such products require a wider system analysis approach that takes into account multiple loops, having interconnected energy and material flows through reuse, remanufacture, and various recycling practices.

scholarly journals Vineyards production cycle with SPA technologies

2020 ◽  
pp. 10
Author(s):  
Marco Vieri ◽  
Daniele Sarri ◽  
Stefania Lombardo ◽  
Marco Rimediotti ◽  
Riccardo Lisci ◽  
...  
Keyword(s):  
Climate Change ◽  
Value Chain ◽  
Precision Agriculture ◽  
Risk Control ◽  
Great Variability ◽  
High Tech ◽  
Production Cycle ◽  
Research Development ◽  
The Core ◽  
Event Risk

The use of Precision Agriculture in the vineyard chain has had a strong evolution over the last years, due to the need to risks control derived by pest and climate change. The great variability of the specific environment, dimension and infrastructure have determined more research development than market ready technologies, in comparison with what is happened in tillage crops. In viticulture, pest and climate dangerous event risk control, with IoT technologies is the core of innovation, then there is the vigour control of the vines by monitoring an agronomical management. For the high value chain of wine traceability and sustainability, key indexes are fundamental. Digital and high tech territorial platforms are essential to increase PA technologies acquisition in grape and wine value chain.

scholarly journals Development of a Monitoring System for Maintenance and Repair of High-Tech Equipment

2021 ◽  
Vol 346 ◽  
pp. 03044
Author(s):  
Andrey Korneev ◽  
Alexandr Kozlov ◽  
Tamara Lavrukhina ◽  
Andrey Strukov
Keyword(s):  
Decision Theory ◽  
Monitoring System ◽  
System Analysis ◽  
High Tech ◽  
Operating Parameters ◽  
Maintenance And Repair ◽  
Engineering Teams ◽  
Maintenance Work ◽  
Service Channels

The article presents a system for monitoring high-tech equipment, uses methods of system analysis and decision theory to optimize organizational tasks in the maintenance of high-tech equipment. The possibility of optimizing service channels based on the parameters set by the requirements for performing a certain type of work is considered. The monitoring system of high-tech equipment (MSHTE) is presented in the form of blocks that take into account all types of high-tech equipment, components and assemblies of each of them, technical characteristics, operating parameters, a list of the composition of engineering teams that perform the corresponding maintenance work.

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