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Optimal Cost-Effective Maintenance Policy for a Helicopter Gearbox Early Fault Detection under Varying Load
Joint Authors
Li, Huaiyuan
Cai, Jing
Li, Xin
Zuo, Hong-fu
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-23
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Most of the existing fault detection methods rarely consider the cost-optimal maintenance policy.
A novel multivariate Bayesian control approach is proposed, which enables the implementation of early fault detection for a helicopter gearbox with cost minimization maintenance policy under varying load.
A continuous time hidden semi-Markov model (HSMM) is employed to describe the stochastic relationship between the unobservable states and observable observations of the gear system.
Explicit expressions for the remaining useful life prediction are derived using HSMM.
Considering the maintenance cost in fault detection, the multivariate Bayesian control scheme based on HSMM is developed; the objective is to minimize the long-run expected average cost per unit time.
An effective computational algorithm in the semi-Markov decision process (SMDP) framework is designed to obtain the optimal control limit.
A comparison with the multivariate Bayesian control chart based on hidden Markov model (HMM) and the traditional age-based replacement policy is given, which illustrates the effectiveness of the proposed approach.
American Psychological Association (APA)
Li, Xin& Cai, Jing& Zuo, Hong-fu& Li, Huaiyuan. 2017. Optimal Cost-Effective Maintenance Policy for a Helicopter Gearbox Early Fault Detection under Varying Load. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-16.
https://search.emarefa.net/detail/BIM-1190472
Modern Language Association (MLA)
Li, Xin…[et al.]. Optimal Cost-Effective Maintenance Policy for a Helicopter Gearbox Early Fault Detection under Varying Load. Mathematical Problems in Engineering No. 2017 (2017), pp.1-16.
https://search.emarefa.net/detail/BIM-1190472
American Medical Association (AMA)
Li, Xin& Cai, Jing& Zuo, Hong-fu& Li, Huaiyuan. Optimal Cost-Effective Maintenance Policy for a Helicopter Gearbox Early Fault Detection under Varying Load. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-16.
https://search.emarefa.net/detail/BIM-1190472
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1190472