Condition based maintenance optimization for multi-component systems using proportional hazards model

Zhigang Tian, Haitao Liao

Research output: Contribution to journalArticle

154 Citations (Scopus)

Abstract

The objective of condition based maintenance (CBM) is typically to determine an optimal maintenance policy to minimize the overall maintenance cost based on condition monitoring information. The existing work reported in the literature only focuses on determining the optimal CBM policy for a single unit. In this paper, we investigate CBM of multi-component systems, where economic dependency exists among different components subject to condition monitoring. The fixed preventive replacement cost, such as sending a maintenance team to the site, is incurred once a preventive replacement is performed on one component. As a result, it would be more economical to preventively replace multiple components at the same time. In this work, we propose a multi-component system CBM policy based on proportional hazards model (PHM). The cost evaluation of such a CBM policy becomes much more complex when we extend the PHM based CBM policy from a single unit to a multi-component system. A numerical algorithm is developed in this paper for the exact cost evaluation of the PHM based multi-component CBM policy. Examples using real-world condition monitoring data are provided to demonstrate the proposed methods.

Original languageEnglish (US)
Pages (from-to)581-589
Number of pages9
JournalReliability Engineering and System Safety
Volume96
Issue number5
DOIs
StatePublished - May 2011
Externally publishedYes

Fingerprint

Condition-based Maintenance
Multicomponent Systems
Proportional Hazards Model
Maintenance Policy
Hazards
Optimization
Condition Monitoring
Condition monitoring
Costs
Replacement
Maintenance
Model-based
Unit
Evaluation
Optimal Policy
Numerical Algorithms
Economics
Minimise

Keywords

  • Condition based maintenance
  • Economic dependency
  • Multi-component systems
  • Proportional hazards model

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Safety, Risk, Reliability and Quality
  • Applied Mathematics

Cite this

Condition based maintenance optimization for multi-component systems using proportional hazards model. / Tian, Zhigang; Liao, Haitao.

In: Reliability Engineering and System Safety, Vol. 96, No. 5, 05.2011, p. 581-589.

Research output: Contribution to journalArticle

@article{332c83c87e3048a3b46e0cc628c9c182,
title = "Condition based maintenance optimization for multi-component systems using proportional hazards model",
abstract = "The objective of condition based maintenance (CBM) is typically to determine an optimal maintenance policy to minimize the overall maintenance cost based on condition monitoring information. The existing work reported in the literature only focuses on determining the optimal CBM policy for a single unit. In this paper, we investigate CBM of multi-component systems, where economic dependency exists among different components subject to condition monitoring. The fixed preventive replacement cost, such as sending a maintenance team to the site, is incurred once a preventive replacement is performed on one component. As a result, it would be more economical to preventively replace multiple components at the same time. In this work, we propose a multi-component system CBM policy based on proportional hazards model (PHM). The cost evaluation of such a CBM policy becomes much more complex when we extend the PHM based CBM policy from a single unit to a multi-component system. A numerical algorithm is developed in this paper for the exact cost evaluation of the PHM based multi-component CBM policy. Examples using real-world condition monitoring data are provided to demonstrate the proposed methods.",
keywords = "Condition based maintenance, Economic dependency, Multi-component systems, Proportional hazards model",
author = "Zhigang Tian and Haitao Liao",
year = "2011",
month = "5",
doi = "10.1016/j.ress.2010.12.023",
language = "English (US)",
volume = "96",
pages = "581--589",
journal = "Reliability Engineering and System Safety",
issn = "0951-8320",
publisher = "Elsevier Limited",
number = "5",

}

TY - JOUR

T1 - Condition based maintenance optimization for multi-component systems using proportional hazards model

AU - Tian, Zhigang

AU - Liao, Haitao

PY - 2011/5

Y1 - 2011/5

N2 - The objective of condition based maintenance (CBM) is typically to determine an optimal maintenance policy to minimize the overall maintenance cost based on condition monitoring information. The existing work reported in the literature only focuses on determining the optimal CBM policy for a single unit. In this paper, we investigate CBM of multi-component systems, where economic dependency exists among different components subject to condition monitoring. The fixed preventive replacement cost, such as sending a maintenance team to the site, is incurred once a preventive replacement is performed on one component. As a result, it would be more economical to preventively replace multiple components at the same time. In this work, we propose a multi-component system CBM policy based on proportional hazards model (PHM). The cost evaluation of such a CBM policy becomes much more complex when we extend the PHM based CBM policy from a single unit to a multi-component system. A numerical algorithm is developed in this paper for the exact cost evaluation of the PHM based multi-component CBM policy. Examples using real-world condition monitoring data are provided to demonstrate the proposed methods.

AB - The objective of condition based maintenance (CBM) is typically to determine an optimal maintenance policy to minimize the overall maintenance cost based on condition monitoring information. The existing work reported in the literature only focuses on determining the optimal CBM policy for a single unit. In this paper, we investigate CBM of multi-component systems, where economic dependency exists among different components subject to condition monitoring. The fixed preventive replacement cost, such as sending a maintenance team to the site, is incurred once a preventive replacement is performed on one component. As a result, it would be more economical to preventively replace multiple components at the same time. In this work, we propose a multi-component system CBM policy based on proportional hazards model (PHM). The cost evaluation of such a CBM policy becomes much more complex when we extend the PHM based CBM policy from a single unit to a multi-component system. A numerical algorithm is developed in this paper for the exact cost evaluation of the PHM based multi-component CBM policy. Examples using real-world condition monitoring data are provided to demonstrate the proposed methods.

KW - Condition based maintenance

KW - Economic dependency

KW - Multi-component systems

KW - Proportional hazards model

UR - http://www.scopus.com/inward/record.url?scp=79951813084&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79951813084&partnerID=8YFLogxK

U2 - 10.1016/j.ress.2010.12.023

DO - 10.1016/j.ress.2010.12.023

M3 - Article

AN - SCOPUS:79951813084

VL - 96

SP - 581

EP - 589

JO - Reliability Engineering and System Safety

JF - Reliability Engineering and System Safety

SN - 0951-8320

IS - 5

ER -