Title
Optimal inspection-based preventive maintenance policy for three-state mechanical components under competing failure modes.
Abstract
The degradation of mechanical components is non-stationary and their degradation level can only be detected through offline discrete inspection in most cases. Aiming at the effect of the non-stationary feature and the delay of state detection caused by discrete inspection on long-run operation cost, this paper focuses on proposing an optimal inspection-based maintenance policy for three-state mechanical components subject to competing failure modes. A double-Wiener-process degradation model is established to describe the two operation states, which includes two Wiener process models under the same law but with different parameters. In addition, a preventive maintenance policy including a degradation threshold, an age threshold and a degradation control limit are adopted. A five-scenario probability-based model is proposed to describe the state evolution during one inspection interval and then the analytical model of the impact of delay on detecting state-transition and degradation-level on preventive maintenance policy is proposed. An optimization model of an inspection- based maintenance is established. Finally, sensitivity analysis in terms of the decision variables for state-transition time distribution and parameters in wear-out state is carried out based on numerical examples and the efficiency and superiority of the proposed policy is demonstrated by comparing with the current two-state maintenance policy.
Year
DOI
Venue
2016
10.1016/j.ress.2016.02.007
Reliability Engineering & System Safety
Keywords
Field
DocType
Optimal preventive maintenance,Periodic inspection,Wiener process,Compound Poisson process,Three-state components
Wiener process,Time distribution,Decision variables,Control limits,State evolution,Engineering,Mechanical components,Preventive maintenance,Compound Poisson process,Reliability engineering
Journal
Volume
ISSN
Citations 
152
0951-8320
10
PageRank 
References 
Authors
0.54
16
6
Name
Order
Citations
PageRank
Jian Zhang1102.91
Xiaoyan Huang2499.39
You-tong Fang3436.67
Jing Zhou4100.54
He Zhang5255.89
Jing Li6192.77