Математичні методи оцінки експлуатаційної надійності засобів рухомості озброєння та військової техніки

The article presents the results of the research of dependability of mobility assets (MA) of weapon and military equipment (WME) according to operating hours and energy consumption which allow to control their operational reliability. The subject of the study is the process of investigation of operational reliability of mobility assets of of weapon and military equipment. The purpose of the article is theoretical determination of the resource provision by the criterion of a single permissible failure on the basis of the probabilistic model of fatigue resistance of structural elements and data obtained under real operating conditions. The research established a correlation between operating hours and energy consumption of mobility assets of weapon and military equipment and justified the feasibility of planning maintenance and repair according to mileage. The given studies are based on probability-statistical methods of determination of car reliability. The results of the carried out researches showed that the mathematical model of resource provision by the criterion of the  only one  permissible failure can be obtained on the basis of the probabilistic model of fatigue resistance of structural elements. A  possibility to calculate the parameters of the failure flow on the basis of the data obtained under real operation conditions is shown. Thus, the failure flow parameter is calculated with a guaranteed probability of more than 0.90. The provided method allows, provided that the loading cycle count values are known, to determine the reliability of the individual unit (system) and the mobility means as a whole. Determination of the number of load cycles of of MA of WME during use as intended is the subject of further research. The normative maintenance period shall be established on the basis of statistical data obtained under specific operating conditions, on the basis of the labour-intensivity of the  one maintenance or one fault elimination. The judgement has been confirmed that  as the operating time increases, at the beginning the specific value of the labour-intensity of the current repair increases and then gradually decreases.