scholarly journals System risk assessment based on the probabilistic model “exposure-susceptibility” at the enterprises of storage and processing of vegetable agricultural products

2021 ◽  
Vol 937 (3) ◽  
pp. 032073
Author(s):  
A Cheremisin ◽  
Y Esipov ◽  
S Traypichkin ◽  
A Bukreeva
Keyword(s):  
Risk Assessment ◽  
Initial Data ◽  
Probabilistic Model ◽  
Technical System ◽  
Agricultural Products ◽  
System Risk ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
Security Costs ◽  
Selection Of

Abstract At present, elements of probabilistic safety and risk assessment have been introduced into the design and analysis of complex technical systems, one of the main disadvantages of which is the difficulty due to the selection of initial data in the form of probabilities of initiating events. As a consequence, the use of known methodologies for quantifying risk can lead to either underestimation of threats or unreasonably high security costs. On the example of an enterprise for the storage and processing of vegetable agricultural products, an approach was considered for assessing the risk of a technical system based on the probabilistic model “exposure-susceptibility”.

DIGITAL DESIGN OPTIMIZATION OF A COMPLEX TECHNOLOGICAL SYSTEM

2021 ◽  
Vol 3 ◽  
pp. 85-90
Author(s):  
A.R. ABLAEV ◽  
E.V. KHROMOV ◽  
R.R. ABLAEV ◽  
A.P. POLYAKOV
Keyword(s):  
Design Optimization ◽  
Level Structure ◽  
Phenomenological Approach ◽  
Digital Design ◽  
Technical System ◽  
Software Support ◽  
Complex Technical System ◽  
Complex Optimization ◽  
Complex Technical Systems ◽  
Technical Systems

The article investigates the issue of optimization of a complex technical system at the stage of its design using a heuristic–phenomenological approach. The analysis of the principles of complex optimization of complex technical systems is carried out. A four–level structure for the synthesis of methodological, informational and software support for complex optimization of complex technical systems is proposed, which will allow controlling the programmable parameters of complex technical systems at each stage of their design.

Methodological provisions for assessing scientific and technical risk and financial losses during development works to create complex technical systems

2021 ◽  
Vol 20 (10) ◽  
pp. 1933-1950
Author(s):  
Nikolai V. FIROV ◽  
Sergei A. SOROKIN
Keyword(s):  
Risk Assessment ◽  
Development Stage ◽  
Financial Resources ◽  
Development Projects ◽  
Technical Risk ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
The Impact ◽  
Risk Assessment And Management ◽  
Financial Losses

Subject. The article addresses scientific and technical risk and financial losses of the customer in the process of research and development works on the creation of complex technical systems. Objectives. The study aims at constructing and analyzing the dependence of scientific and technical risk and financial losses of the customer on the planned volume of development works and the financial resources invested in them. Methods. We apply methods of probability theory and mathematical statistics, system and regression analysis, risk assessment and management. The paper rests on data on completed development projects for complex technical systems creation. Results. We formulated methodological provisions for assessing scientific and technical risk, arising in the process of development works on complex technical systems. The paper presents an algorithm for calculating the expected financial losses from works implementation. The problem of minimizing financial losses associated with scientific and technical risk is formulated and formalized. The feasibility of proposed provisions and recommendations is confirmed by a practical example. Conclusions. To assess risks, it is important to consider the impact of the degree of difference between the main characteristics of developed product and its prototype on the required amount of works at development stage. This enables to build regression dependencies of the volume of works at the development stage on a specified factor, which are later used to assess the scientific and technical risk and associated financial losses.

scholarly journals DEVELOPMENT OF INVARIANT MODELS OF NOMENCLATURE QUALITY INDICATORS OF COMPLEX TECHNICAL SYSTEM

2019 ◽  
Vol 1 (7) ◽  
pp. 53-59
Author(s):  
S. A. Nazarevich ◽  
V. G. Farafonov ◽  
A. V. Vinnichenko
Keyword(s):  
Quality Indicators ◽  
Product Innovation ◽  
Planning Horizon ◽  
Technical System ◽  
Civil Aviation ◽  
Design Documentation ◽  
Complex Technical System ◽  
Complex Technical Systems ◽  
Selection Of

The article describes the modernization of consumer characteristics, through the selection of the quality indicators nomenclature using cluster analysis, and bringing the complex technical system (CTS) model using the example of civil aviation technology (CAE) to an invariant form. Also, the article uses a methodological apparatus for assessing the degree of product innovation taking into account the total number of product technical characteristics presented by regulatory and design documentation for the products being created. The obtained characteristics were synthesized by translating consumer requirements of the main participants of the civil aviation equipment market segment. Taking into account the opinions of various consumer groups, five clusters were created and the basic structures of the model of a complex technical system were modeled. Applied technological device suitable for solving problems related to structured and classification of valuable technical characteristics with a planning horizon of 10 years various representatives of the company producing different brands of products related to complex technical systems of civil aviation equipment.

scholarly journals RESEARCH OF MODERN WATER MANAGEMENT LANDSCAPE AND TECHNICAL SYSTEMS

2021 ◽  
Vol 26 (1(38)) ◽  
pp. 43-54
Author(s):  
S. K. Mizina
Keyword(s):  
Water Management ◽  
System Analysis ◽  
Technical System ◽  
Soil Science ◽  
Anthropogenic Landscapes ◽  
Basic Principles ◽  
Scientific Cognition ◽  
Landscape System ◽  
Technical Systems ◽  
Selection Of

Problem Statement and Purpose. Approaches, principles and methods of research of anthropogenic landscapes, in particular landscape-technical systems, are considered in detail in the works of many scientists. However, less attention is paid to the study of water management landscape technical systems. This necessitates more specific approaches, principles and methods that would allow to fully reveal the essence of these systems. Water management landscape-technical system is a complex system that combinesnatural, technical and information blocks that interact with each other. Therefore, researching these systems, in addition to traditional and specific, it is necessary to use at the integrated level the principles and methods of various natural sciences. Data & Methods. In the process of analysis and disclosure of approaches, principles and methods of research of water management landscape system, the following methods were used: structural and logical generalization (used to identify traditional methods in the study of the system), abstraction (selection of specific methods to reveal the essence of the system), system analysis (establishment of integration links between traditional and specific methods of scientific cognition), generalization (made it possible on the basis of the obtained data on methods of scientific cognition to develop a scheme for studying the water landscape system of the Trubizh river basin). Results. It is noted that the study of water management landscape technical system is impossible without the use of a systematic approach, which is traditional in all theoretical studies. Approaches that help to reveal the essence of the water management landscape and technical system (historical, basinal, system, paragenetic, constructive, cartographic and geoinformational) are identified and analyzed. The cartographic approach is singled out, which is one of the main ones in the study of water management landscape technical systems. There is a particular emphasis on the geoinformational approach, as the development of GIS projects is one of the most promising and modern trends in the study of not only water management landscape and technical systems, but also anthropogenic landscape science in general. The essence of specific principles and research methods is revealed, as they help to understand the peculiarities of the water management landscape and technical system. Three basic principles (historicism, natural anthropogenic compatibility and advanced study of previous natural and anthropogenic landscapes) were considered, on their basis seven methods of scientific research were identified and analyzed. The author emphasizes that, in addition to the main approaches, principles and methods, it is expedient to use methods from other sectoral sciences in the water management landscape and technical system study (geology, geomorphology, soil science, hydrology, zoology, botany etc.). A generalized study scheme of the water management landscape and technical system has been proposed, using the Trubizh River as an example.

scholarly journals PRINCIPLES OF FORMAL CLASSIFICATION THEORY OF TECHNICAL SYSTEMS: CASE OF ENERGY FACILITIES

2021 ◽  
Vol 2021 (2) ◽  
pp. 7-19
Author(s):  
Natalia Fedorova
Keyword(s):  
Formal Theory ◽  
Technical System ◽  
Classification Theory ◽  
Legal Environment ◽  
Composition And Structure ◽  
Continuous Band ◽  
Formal Classification ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
The Relationship

The article describes the power generating and other energy facilities as complex technical systems interacting with the material, financial, informational and legal environment. To ensure functioning and development of a technical system it is important to determine its place among other technical systems: technical systems and their elements must be classified. There have been presented the principles of formal theory of technical system classification. The classification objects have been given a definition. The concepts of classification, classification attribute and meaning of the classification attribute are formalized. The goal and tasks of the classification are formulated. The stages of forming and applying classifiers include developing the composition and structure of classifier kernel, marking interpretation elements and selecting an element corresponding to the user's request. The alphabet, inference rules, axioms and main theorems of the classification formal theory are presented. It is proved that a complete consistent independent classification theory is decidable. The taxonomy of the classifier types is considered: elementary (incomplete and complete), basic (discrete hierarchical, discrete matrix, continuous band), complex (combined and limiting). Examples of using classifiers of various types in the description of energy objects are given. The algorithms, labeling and selection problems are considered. The use of a grounded and structured classification theory allows better understanding and description of the relationship between technical and related systems and l increases the efficiency of functioning and development of technical systems.

scholarly journals The Synthesis of a Critical Infrastructure Object Model for Safe Operation of a Technical System Under the Conditions of Destructive Information Impact

2020 ◽  
pp. 48-56
Author(s):  
Aleksey Kubarev ◽  
◽  
Aleksey Lapsar’ ◽  
Alexander Asyutikov ◽  
◽  
...  
Keyword(s):  
Diffusion Processes ◽  
Information Infrastructure ◽  
Technical System ◽  
Evolutionary Models ◽  
Critical Information ◽  
Technical Requirements ◽  
Complex Technical System ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
The Impact

The purpose of the article: improving the security and stability of the functioning of complex technical systems managed by critical information infrastructure objects under the conditions of a destructive information impact, using parameterized evolutionary models. Methods: synthesis of parametrized evolutionary models of significant objects of critical information infrastructure based on the Markov theory of estimation of multidimensional diffusion processes. The result: within the framework of an integrated approach to ensuring the security of complex technical systems, a parametrized evolutionary model of an object of a critical information infrastructure operating under conditions of destructive information impact has been synthesized. An approach to the development of recommendations for managing a complex technical system by means of an operational assessment of the main characteristics of the functioning of a critical information infrastructure object is proposed. A sequence has been developed for developing solutions for the operation of a complex technical system, based on an assessment of the impact level and the results of an operational calculation of the main characteristics of the functioning of a critical information infrastructure object. The results obtained make it possible to reasonably formulate technical requirements for the created or modernized means of ensuring the security of significant objects of critical information infrastructure that manage complex technical systems.

scholarly journals Study of the risk of scheme of traffic light as risk technical system with the fault tree method

2019 ◽  
Vol 6 ◽  
pp. 29-36
Author(s):  
Tsvetelina Simeonova
Keyword(s):  
Risk Assessment ◽  
Risk Analysis ◽  
Fault Tree ◽  
Technical System ◽  
Traffic Light ◽  
Technical Systems ◽  
Risk Analysis And Management ◽  
Tree Method

The aim of the paper is to develop a methodology for risk analysis and risk assessment of a risk technical system (traffic light scheme) using the fault tree method. Results: Analysis of the risk of risk technical systems through a fault tree gives an unambiguous relationship between element parameters and parameters of equivalent elements describing a system or a part of a system. An example of risk analysis of a risk technical system (traffic light-scheme) is shown with the fault tree method applicable to students training on risk analysis and management, including a sample scheme and a tree scheme (according to accepted assumptions) and with the possibility of calculating it and determining the risk at the assumed value of the damage. Contributions: A methodology for analysis and risk assessment of risk technical systems (traffic lightscheme) has been developed and an example has been developed for the students' training in risk analysis and management.

ABOUT THE DEMAND FOR RELIABILITY VALUES OF WATER SUPPLY AND SEWERAGE SYSTEMS

2011 ◽  
Vol 1 (1) ◽  
pp. 57-61
Author(s):  
E. M GAL'PERIN
Keyword(s):  
Water Supply ◽  
Reliability Theory ◽  
Correct Selection ◽  
Xxth Century ◽  
Reliability Indices ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
Selection Of

It has been studied that major drawbacks in formulating the requirements for the reliability of water supply and sewerage systems in existing regulations are related to the fact of their being formulated in the first part of the XXth century. These regulations dont take into account the latest achievements in the reliability theory appeared and developed successfully in the second part of the XXth century. Among these achievements there is a methodologically correct selection of indices for estimating the reliability of complex technical systems. The selection of science-based reliability indices for water supply and sewerage systems and their introduction in the existing regulations is the task of primary importance.

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