DETERMINATION OF CREDIBLE PROPERTIES OF PROCESS OF WARRANTY MAINTENANCE OF STANDARDS OF AVIATION EQUIPMENT, WHICH IS EXPLOITED AFTER LIMITS OF THE PRELIMINARY SET RESOURCE INDEXES

Abstract

The analysis of mathematical model that it maybe to take for basis at forming of methodologies of determination of reliability of standards of aerotechics, that is exploited outside the preliminary set resource indexes, indexes is presented. Laws of distribution of refuses that arise up on the standards of aerotechics of Ukraine in then repair period are casual sizes, matter very much for a theory and practice of works in relation to providing of reliability of wares. Knowledge of these laws allows to expect and to forecast reliability of wares on the stages them warranty service. An especially large value laws have at the estimation of validity establishment and continuation of resource of wares of aerotechics to the maximum level, in fact safety of flights of aircrafts depends on it. From the large variety of laws of distribution of casual sizes that is worked out in the theory of chances, a most value for reliability such laws have: binomial and Poisson - for discrete quantities; of Weibull and normal - for continuous sizes. In addition, a law is sometimes used "gamut - to distribution" et al. For difficult distributions compositions of the indicated laws of distribution and brief laws of distribution are used. Use of that or other law conditioned by descriptions of display and changes of refuses of wares of aviation equipment in time. For most mechanical, hydraulic and electric devices (mechanisms, blocks) it is practically impossible to distinguish only sudden or only gradual refuses. There are various combinations of both types of refuses in relation to every certain good; by the analysis of statistical data it will be to estimate their accordance to the theoretical law of distribution of refuses. It is thus necessary to mark that the use is for the aviation wares of exponential law of distribution, that characterizes sudden refuses, needs the special ground and can be suffered for comparatively short intervals of time of exploitation of standards of aviation equipment in a TBO period. On the basis of offer in the article compositions of laws of distributions of refuses it maybe to define basic quantitative reliability of standards of aviation equipment, that is exploited outside the preliminary set resource indexes, indexes. Taking into account that standards of aviation equipment are difficult wares that include for itself various component elements, by methodical basis of determination of probabilistic properties of process them warranty service there is combination of different distributions, what inherent to the separate elements of these standards. Design of process of determination of probabilistic properties of warranty maintenance of standards of aviation equipment, that is exploited outside the preliminary set resource indexes allows in theory to define basic quantitative reliability of these standards indexes after repair.