Wear rate-state interactions within a multi-component system : a study of a gearbox accelerated life testing platform

Assaf, R, Do, P, Nefti-Meziani, S and Scarf, PA 2018, 'Wear rate-state interactions within a multi-component system : a study of a gearbox accelerated life testing platform' , Proceedings of the Institute of Mechanical Engineers Part O: Journal of Risk and Reliability . (In Press)

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Abstract

The degradation process of complex multi-component systems is highly stochastic in nature. A major side effect of this complexity is that components of such systems may have unexpected reduced life and faults and failures that decrease the reliability of multi-component systems in industrial environments. In this work we provide maintenance practitioners with an explanation of the nature of some of these unpredictable events, namely the degradation interactions that take place between components. We begin by presenting a general wear model where the degradation process of a component may be dependent on the operating conditions, the component’s own state, and the state of the other components. We then present our methodology for extracting accurate health indicators from multi-component systems by means of a time-frequency domain analysis. Finally we present a multi-component system degradation analysis of experimental data generated by a gearbox accelerated life testing platform. In so doing, we demonstrate the importance of modelling the interactions between the system components by showing their effect on component lifetime reduction.

Item Type: Article
Schools: Schools > Salford Business School > Salford Business School Research Centre
Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre (SIRC)
Journal or Publication Title: Proceedings of the Institute of Mechanical Engineers Part O: Journal of Risk and Reliability
Publisher: SAGE
ISSN: 1748-006X
Funders: EU
Depositing User: Dr Philip Scarf
Date Deposited: 13 Feb 2018 09:18
Last Modified: 14 Feb 2018 12:39
URI: http://usir.salford.ac.uk/id/eprint/45168

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