THE PHENOMENON OF «SURVIVABILITY» IN PROBLEMS OF ENSURING RELIABILITY OF COMPLEX CRITICAL DYNAMIC SYSTEMS 

Vladislav A. Ostreykovskiy, Doctor of technical sciences, professor, professor of the sub-department of information theory and computer technology, Surgut State University (1 Lenin avenue, Surgut, Russia), E-mail: academicostr@yandex.ru
Andrey V. Sorochkin, Postgraduate student, Surgut State University (1 Lenin avenue, Surgut, Russia), E-mail: sorochkin_av@surgu.ru 

Background. The XX century has led mankind to solve many new problems, which are characterized by the appearance of structurally and functionally complex systems (SFSS), which required the emergence of tasks to ensure their high reliability and reliability. From the experience of using SFSS for its intended purpose throughout the entire life cycle, by the beginning of the XXI century, a number of important shortcomings were identified: the difference between the actual level of reliability of structural elements and regulatory requirements; calculating the cost of work performed on the SFSS during their operation to ensure resource and reliability; insufficient efficiency of the work performed at the SFSS to ensure resource and reliability; the inability in many cases to correctly diagnose equipment damage during operation; the absence of a single logically sound system of regulatory documents; the lack of a unified scientific methodology for ensuring the strength, resource, reliability and safety of SFSS; the lack of a centralized management system for the quality assurance of SFSS, the negative impact of the human factor. The whole family of factors under study required the application of the fundamentals of the system concept of ensuring high quality of SFSS. This article is devoted to solving a number of the above tasks. Materials and methods. To solve many problems, the authors of the article propose the use of the following approaches and theoretical methods: the integrated use of thermodynamics methods, the operator theory of functional analysis and statistical modeling, the theory of internal time asymmetry of critical SPSS with long periods of active existence. Results and conclusions. New results of the application of modern functional analysis and evaluation of the asymmetry of internal time are obtained. 

initial resource, residual resource, damage, origin of defects, durability, survivability, internal time 

Ostreykovskiy V.A., Sorochkin A.V. The phenomenon of «survivability» in problems of ensuring reliability of complex critical dynamic systems. Nadezhnost' i kachestvo slozhnykh sistem = Reliability and quality of complex systems. 2023;(3): 21–27. (In Russ.). doi: 10.21685/2307-4205-2023-3-3