Parametric and Non-Parametric Reliability Analysis of The Propeller Unit of an Aircraft Fleet

Authors : Mahmut Sami Şaşmaztürk, Abdulsamet Ertem, Selda Kapan Ulusoy

Pages : 94-106

View : 29 | Download : 30

Publication Date : 2024-07-31

Article Type : Research

Abstract :Preventive maintenance is performed to sustain the safe and reliable operation of industrial equipments. In order to plan preventive maintenance or evaluate the existing maintenance plan, the failure behavior of the system must be modeled. The failure behavior of a repairable system is modeled utilizing counting processes. In this study failure behavior of propellers belonging to a small aircraft fleet is modeled. First non-parametric estimate of population mean cumulative function (MCF) is obtained. MCF helps discovering the special features of the maintenance data. The parametric model selection depends on the result of the trend analysis of the time between failures. In the second part of the study trend analysis is performed on propeller maintenance data. Based on the trend analysis two prospect parametric models are selected. Reliability measures are estimated using both models and results are compared to evaluate the existing preventive maintenance plan.
Keywords : repairable system reliability, MCF, counting process, reliability metrics