Open AccessEVALUATION OF THE RELIABILITY OF MILITARY EQUIPMENT WITH A LIMITED NUMBER OF SAMPLES
Author(s) -
S. Moskalets,
V. Zhyrnyi,
С. И. Кузин,
A. Rudyk
Publication year - 2020
Publication title -
zbìrnik naukovih pracʹ deržavnogo naukovo-doslìdnogo ìnstitutu viprobuvanʹ ì sertifìkacìï ozbroênnâ ta vìjsʹkovoï tehnìki
Language(s) - English
Resource type - Journals
ISSN - 2706-7386
DOI - 10.37701/dndivsovt.4.2020.09
Subject(s) - maintainability , reliability engineering , reliability (semiconductor) , computer science , technical documentation , documentation , parametric statistics , property (philosophy) , markov chain , scope (computer science) , spare part , engineering , operations management , power (physics) , statistics , physics , philosophy , mathematics , epistemology , programming language , quantum mechanics , machine learning
An important task of research of military equipment is the collection, processing and analysis of information about the technical condition and reliability. The performance of a combat mission and the lives of people directly depend on these technical characteristics.
In the available regulatory and technical documentation, reliability is defined as the property of the object to maintain over time within the established limits the values of indicators that characterize the ability to perform the required functions in the specified conditions of use, maintenance, repair, storage and transportation.
Reliability, according to the requirements of DSTU, is a complex property that includes the properties of faultlessness, maintainability, durability and preservation. NATO members already use seven reliability parameters.
The issue of ensuring the required level of reliability is constantly addressed by a number of authors, which is presented in a wide range of scientific papers. Thus, to maintain the high technical condition of aviation equipment, the assessment of its real level is considered as a set of a large number of individual systems and subsystems with the allocation of their indicators with subsequent careful examination of the weakest ones. The division into separate systems of complex objects allows increasing the overall level of reliability. An object is understood both as an element and an arbitrary non-redundant system, which is represented by single implementations of parameters that determine its weakest components.
For degradation processes that are caused by aging, wear, cyclic and other types of mechanical loads, two parametric Markov models of random processes are better suited: diffusion monotonic and nonmonotonic laws. The parameters of scale and form of their distributions are determined.
The proposed technique can be widely used to calculate the reliability parameters of other technical systems. It is important to make a reasonable choice of failure criteria, which must be clearly defined for critical systems of military vehicles. Previous experience should be taken into account and databases on the reliability of analogues of the relevant samples should be compiled. The program of reliability parameters calculation of technical systems with the use of statistical functions of electronic spreadsheets is elaborated.