reliability

IMPACT ASSESSMENT OF MEANS OF CONNECTING THE RESERVE ON THE RELIABILITY INDICATORS OF THE DATA TRANSMISSION SYSTEM

Structural redundancy is included in modern data transmission systems to ensure the specified reliability indicators. Structural redundancy gives the system fault tolerance and significantly increases its reliability. To manage the redundant resource, it is necessary to have additional tools that will connect the redundant equipment to the main configuration of the data transmission system. The redundant equipment is a separate technical means and, from the point of view of reliability, it is connected in series with other modules of the data transmission system.

OPTIMIZATION OF DISASTER RECOVERY PROCESSES OF INFORMATION INFRASTRUCTURE SERVICES

The article describes the optimization of the process of disaster recovery of information infrastructure services by implementing the ability to restore service functionality without requiring a full recovery from backup storage. It outlines the criteria and parameters of the network that have a critical impact on recovery in the event of emergencies, allowing for the assessment of the solution's effectiveness in post-disaster recovery.

Програмна реалізація моделі надійності технічної нерезервованої системи з обмеженою кількістю відновлень

Описано алгоритм та здійснено програмну реалізацію моделі надійності технічної нерезервованої системи з обмеженою кількістю відновлень. Розроблене програмне забезпечення (ПЗ) дає змогу аналізувати показники надійності різних варіантів побудови нерезервованої відновлюваної технічної системи з обмеженою кількістю відновлень для різної кількості елементів та кількості відновлень. У ПЗ передбачено можливість візуалізації отриманих результатів обчислень.

Визначення довговічності дубльованої інформаційної системи із паралельним резервуванням на основі ациклічної марковської моделі

Для визначення показників довговічності систем зі структурним резервуванням запропоновано метод, який ґрунтується на застосуванні багатовимірних ациклічних марковських моделей. На основі запропонованого методу для дубльованої системи із паралельним резервуванням визначено гамма-процентний ресурс, інтенсивність відмов та ймовірність розподілу за відмовами.

DESIGNING AND SIMULATION OF AN ENHANCED SCREW-TYPE PRESS FOR VEGETABLE OIL PRODUCTION

Problem statement. The production of oil crops and products of their processing has significantly increased in recent decades. Vegetable oils are mainly produced by pressing oilcontaining raw materials using screw-type presses. During the press operation, there is a need to adapt its working regimes to the seeds of individual crops while ensuring the possibility of adjusting certain operation parameters that are set technologically. Purpose.

THE SOFTWARE STOCHASTIC MODEL OF OPERATING BEHAVIOR OF FAILURE-RESISTANT SYSTEMS WITH MAJORITY TYPE OF VOTING {3 of 5}

The software stochastic model of operating behavior of failure-resistant systems with majority type of voting {3 of 5} is intended for information technology design of communication or technological systems of critical infrastructure facilities.

Mathematical modelling to industrial repair and maintenance policy system for its reliability

The present paper is an initiative taken by emerging reliability model to a automobile repair industries for its products by dividing repair policy into two categories as (a) regular/normal service and (b) strategy for accidental or additional failure.  The concept of inspection process has been introduced for proper verification of failure and also to its repairing strategy with time and cost.  The maintenance cost for regular services are fixed but for the case of additional failures the additional cost will be decided upon the level of damage.  The stochastic analysi

Forecasting the mobility parameters of the inhabitants of suburban areas

Potential mobility that meets the requirements of population displacement is determined following the biological and social needs, socio-economic characteristics, production necessity, and cultural needs. Because of the multifactor character and complexity of relationships, it is impossible to determine the potential mobility by a calculation method. The feasibility of different target movements, depending on their distance, is regarded by rural populations differently.

Modeling of “combined cutter - cone” connection in tricone drill bits

A theoretical analysis of the stiffness of the “cutter-cone” connection was performed. In the article the character and magnitude of the tension at the contact of "cutter-cone" are investigated. An analysis of the surface of the openings for carbide inserts revealed traces of plastic deformation and fretting wear.

Method for structural optimization of avionics of unmanned aerial vehicle

This paper presents an approach for identifying the optimal configuration of avionic systems of the unmanned aerial vehicle (UAV) based on an additive multi-attribute utility function.  The function arguments are technical and economic indicators of avionics design quality that are specified in accordance with the UAV requirements.  The method is developed on an improved decision model that has a high degree of adequacy primarily by the increasing number of the utility attributes and using advanced reliability models of avionic systems.  These reliability models consider in addition to the