Abstract

The study presented the methodology for estimating the reliability of mechatronic devices and systems with fixed and variable working structure. It assumed a parametric and catastrophic nature of damages in the system’s elements. The analysis of the reliability of mechatronic structure with fixed and variable working structure took into account system’s elements with exponential damage distribution and Weibull’s damage distribution. The further part of this article described the reliability characteristics for two-component parallel mechatronic systems. It particularly considered cases, when the up time of technical system’s elements have the following distributions: exponential, Weibull, normal, logarithm-normal, and the system consists of two components with parallel structure of reliability and different types of distribution for elements’ up times. The order of elements in the analysis does not matter. The following reliability characteristics for the system with two components connected in parallel were presented: system’s up time distribution function, reliability of the system, density of probability for system’s up time, intensity of system’s damages.

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