Mechanical Reliability

Abstract

material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors, and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Assessment of the technical state of mining machinery and devices with the use of diagnostic methods

“…In practice, identifying "momentary" values of traits of such a state is made, for obvious reasons, in a time period equal to (ti , ti+Δt). Therefore, the momentary time is equal to a defined moment of "macro" time Θ, as well as a finite interval of "micro" time t (Grynchenko et al, 2020;Laptev et al, 2015). As a result of the above-mentioned reasons, among research conducted on exploitation devices, it has been accepted (as a rule of thumb) to differentiate between the following sets of time domains: -the set of real-time {ϑ}, complicit with and measured following a clock and calendar time, used in, i.e., the monitoring of machines, -the set of 'micro' time {t}, used to describe the course of values of the diagnostic signal, based on which momentary values of a given state's symptoms are estimated, -the set of 'macro' time {Θ}, which is sometimes called the exploitation time or lifetime of the object, is used to describe the course of values of a given state's symptoms during the time of the object's usage.…”

Statistical model of reliability of cultivators with vibratory movement of working bodies

“…Його успішне вирішення пов'язане з раціональним визначенням коефіцієнту запасу міцності пружних стійок агрегату [4]. Коефіцієнт запасу стійки повинен одночасно задовольняти протирічливим вимогам: забезпечувати міцність стійки і створювати необхідну гнучкість, яка призводить до якісної обробки ґрунту за допомогою коливального руху робочих органів [5].…”

Application of python libraries for variance, normal distribution and Weibull distribution analysis in diagnosing and operating production systems

“…Advanced methods of data analysis allow you to control the quality of the process, assess the reliability or test the resistance of the design. The theory of reliability draws a lot from statistical methods, as evidenced, inter alia, by the monographs of Barlow and Proschan [10], Ansell and Phillips [5], Johnson and others [41], Birolini [11], Woo [94], Grynchenko and Alfyorov [30]. Her research area is the variability of the quality function over time, which is very well expressed in terms of the probability calculus.…”