Investigation of the Operational and Technological Reliability of the Small-size Internal Threading Process

Aleksander Kharchenko, Andrey Kharchenko, Ekaterina Vladetskaya

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Abstract. The article presents the results of research in the direction of improving technological equipment for internal threading of parts in a flexible automated production. Methods for assessing the operational and technological reliability of a flexible manufacturing module (FMM) of thread processing are considered, which can be used as the basis for the developed method of synthesis of its elements. It is proposed to consider the technological system of the flexible manufacturing module (FMM) of thread processing as a system in which transitions from state to state occur under the action of the simplest flows with parameters of the transition probabilities of a continuous Markov chain. The developed mathematical model describing the state of the FMM taking into account the failures of the functioning of its elements, parametric failures, as well as taking into account the recovery after these types of failures, makes it possible to reflect the influence on the operation of the module of the parameters of the flows of failures and restorations of the tool, machine tool, fixture, loading device. The solution of the obtained systems of equations of final probabilities allows for given (or experimentally obtained) intensities of failure streams (functioning and parametric) for FMM threading to obtain the values of the probability of failure-free operation, as well as the probabilities of finding the system in an inoperative state due to corresponding failures. The measures taken make it possible to solve the synthesis problem at the level of structural and layout optimization, so that at the stage of parametric synthesis to determine the elements that are vulnerable according to the developed criterion, the improvement of which will lead to the creation of the most efficient system.

Operational and Technological Reliability, Internal Small-Sized Thread Processing, Technological Elements of the Module, Flexible Manufacturing Module (FMM) for Thread Processing, Simplest Flow, Markov Chain, Probability of Failure-Free Operation

Published online 1/5/2022, 11 pages
Copyright © 2022 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Aleksander Kharchenko, Andrey Kharchenko, Ekaterina Vladetskaya, Investigation of the Operational and Technological Reliability of the Small-size Internal Threading Process, Materials Research Proceedings, Vol. 21, pp 410-420, 2022


The article was published as article 69 of the book Modern Trends in Manufacturing Technologies and Equipment

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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