Abstract
Periodic inspection policy is performed for some degradation systems to
check their degradation states, whereas it is usually difficult to
implement on time due to impact of some random factors. Inspections
and some maintenance actions are implemented in an inspection window
with random, and thus how to optimize the inspection windows and the
degradation threshold of the system to perform preventive maintenance
(PM) are beneficial in practice. To this end, an optimisation of quasiperiodic
inspection and PM policy with inspection window is proposed
for a degradation system whose degradation followed Wiener process
with a linear drift. Assume that PM can change the degradation rate and
inspections are randomly performed in each inspection window. After
optimisation, the optimal interval of the inspection window, the
degradation threshold of PM and PM policy are determined by
minimising the long-term running cost rate of the system. Finally,
modeling and optimisation are illustrated using the degradation process
of an axial piston pump, and the sensitivity analysis of some key
parameters is conducted.
Publisher
Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
Subject
Industrial and Manufacturing Engineering,Safety, Risk, Reliability and Quality
Cited by
1 articles.
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