PHENOMENON OF ASYMMETRY OF INTERNAL TIME,
TAKING INTO ACCOUNT THE INSTABILITY AND IRREVERSIBILITY OF PROCESSES IN THE THEORY OF FORECASTING THE STATE
OF COMPLEX DYNAMICAL SYSTEMS 

Ostreykovsky Vladislav Alekseevich, doctor of technical sciences, professor, sub-department of informatics and computer science, Surgut State University (628412, 1 Lenin street, Surgut, Russia), E-mail: ova@ivi.surgu.ru
Lysenkova Svetlana Aleksandrovna, candidate of physical and mathematical sciences, associate professor, sub-department of informatics and computer science, Surgut State University (628412, 1 Lenin street, Surgut, Russia), E-mail: lsa1108@mail.ru
Shevchenko Elena Nikolaevna, candidate of physical and mathematical sciences, associate professor, sub-department of informatics and computer science, Surgut State University (628412, 1 Lenin street, Surgut, Russia), E-mail: elenan_27@mail.ru 

517.98:519.2:621.039 

10.21685/2307-4205-2019-1-1 

Background. To increase the reliability and safety of complex critical systems during their long-term operation, it becomes necessary to use modern approaches to estimating the life and service life, taking into account the effect of time-past-present-future asymmetry.
Materials and methods. To realize this idea, the analysis of calculation of longevity indicators by traditional criteria of long-term strength and probabilistic-statistical methods for systems in which the required life and service life is 30–50 years or more, produced in small series, and sometimes even in single copies. It is shown that the use of modern methods of functional analysis can improve the accuracy of the forecast of the state of complex macroscopic technical systems.
Results and conclusions. Conclusions are made about the possibility of increasing the reliability and safety characteristics of the SSSF in applying a new approach that takes into account the time asymmetry factor in the theory of durability of complex technical systems. For example, the main theoretical foundation is the evaluation of the internal time of the functioning of systems. 

time asymmetry, instability, irreversibility, resource, service life