JUSTIFICATION OF MAINTENANCE PARAMETERS OF A WEAPONS AND MILITARY EQUIPMENT SAMPLE WITH REGARD TO STRUCTURE, TIME-BASED REDUNDANCY AND LEVELS OF HEALTH

Abstract

The subject matter of the article is the maintenance of armored weapons and military equipment samples used for their intended purpose. The goal of the study is to justify the optimal values of service parameters. The tasks to be solved are: to develop a mathematical model of the functioning process of the weapons and military equipment sample subsystems with periodic maintenance taking into account its structure, time redundancy and levels of performance; to cary out composition of the weapons and military equipment sample into separate subsystems to justify the choice of the most appropriate maintenance strategy for each of them, to determine the optimal maintenance strategy taking into account the operating conditions, units and units involved. General scientific and special methods of scientific knowledge are used. The following results are obtained: It is proposed to determine the optimal values of maintenance periodicity for individual subsystems of the sample of weapons and military equipment, taking into account the reserves of time and features of operation, as well as combining the operations of maintenance of individual subsystems into a single set of works for the sample as a whole based on the representation of the process of operation of the subsystem of the subsystem of the subsystem as a mathematical model of a random semi-Markov process. Conclusions. An analysis of the existing maintenance and repair strategies has shown their single-handedly inefficient in the weapons and military equipment sample operating. The example of the T-64B shows that to put troops into practice, a proper justification and a complex combination of existing strategies is required, ie the creation of a new mixed strategy and efficient use of equipment. It is proposed to decompose the weapons and military equipment sample into separate functionally completed subsystems, justifying the choice of the most appropriate maintenance strategies for them (with periodic or maintenance status), determining for each subsystem the optimal strategy and accordingly the periodicity of maintenance taking into account the time reserves and operation features, as well as separate subsystems into a single set of weapons and military equipment sample works for the sample as a whole. Optimal values of maintenance periodicity and coefficient of technical use are obtained by means of a mathematical model of the process of functioning of the T-64B subsystems with periodic maintenance in the form of a random semi-Markov process. The results of the calculations show that for such tank subsystems as power plant, transmission and undercarriage, electrics, it is advisable to choose a maintenance strategy with periodic maintenance, and for a fire control and air purification system maintenance as a condition. The results obtained can be used in the future to develop suggestions for improving the equipment used to diagnose the technical condition of the weapons and military equipment sample. Improvement of the equipment used in the weapons and military equipment maintenance and repair will significantly increase the depth and quality of determining the technical condition of the objects, and therefore the correctness and efficiency of maintenance.

Keywords

• maintenance and repair
• coefficient of technical use
• graph of states
• semi-Markov process
• time direct technical maintenance