Inspection optimization model with imperfect maintenance based on a three-stage failure process

Yang, Ruifeng; Zhao, Fei; Kang, Jianshe; Li, Haiping; Teng, Hualiang

doi:10.17531/ein.2015.2.1

Cited by 9 publications

(4 citation statements)

References 23 publications

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“…Since Yang [18] argued that the scheduled maintenance programs might not be able to avoid the risk of failure from occurring in system components before the fixed replacement time, advanced preventive action needs to be taken. Continuous monitoring or regular inspection is a proactive recommendation to identify the condition of building systems and components timely [34]. It ensures the planning of accurate maintenance interval prior to failure [35].…”

Section: Findings and Discussionmentioning

confidence: 99%

Relationship between Predetermined Maintenance Interval and Maintenance Performance

Au-Yong

Ali

Ahmad

2016

AMM

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Lack of preventive measure is currently the problem that implicates poor maintenance outcome. Scheduled maintenance is claimed as a maintenance strategy to tackle the problem. However, the effectiveness of scheduled maintenance can be greatly influenced by the length of predetermined maintenance interval. Thus, this paper aims to study the relationship between length of predetermined maintenance interval and maintenance performance. The literature review identifies the length of predetermined maintenance interval as an importance characteristic of scheduled maintenance strategy. A quantitative approach is adopted and carried out through questionnaire survey. Subsequently, descriptive analysis and correlation analysis are used to analyse the collected data. Then, research result demonstrates that the length of predetermined maintenance interval is significantly correlated to the maintenance performance. The length of predetermined maintenance interval must be considered in maintenance planning and execution. The research recommends continuous monitoring or regular inspection of building systems and components to identify their condition and update the length of predetermined maintenance interval regularly. Consequently, the effective maintenance execution helps to avoid systems failure occurs and optimises maintenance performance.

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Section: Findings and Discussionmentioning

confidence: 99%

Relationship between Predetermined Maintenance Interval and Maintenance Performance

Au-Yong

Ali

Ahmad

2016

AMM

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“…Assumption (2) can be relaxed by taking consideration of imperfect inspection to identify the system state exactly with a limited probability, or a sequential inspection program, rather than a fixed inspection interval. Assumptions (3)-(7) have been proposed and used in our previous studies [22,24]; however, the inspection interval is assumed to be halved in the work of Wang et al [22], so we extend this assumption by changing the original inspection interval into the 1/ times of after the identification of the minor defective state.…”

Section: Problem Descriptionmentioning

confidence: 99%

A Joint Inspection-Based Preventive Maintenance and Spare Ordering Optimization Policy Using a Three-Stage Failure Process

et al. 2017

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Separated decision-making for maintenance and spare ordering is unrealistic in the industry, so this paper aims to optimize them together. A joint policy of inspection-based preventive maintenance (PM) and spare ordering considering two modes of spare ordering, namely, a regular order and an emergency order, is proposed for single-unit systems using a three-stage failure process. If the system is recognized to be in the minor defective stage, the original inspection interval is shortened and a regular order is placed. However, replacement is undertaken preventively or correctively if the severe defective stage is identified or a failure occurs. Depending on the system state and the state of the regular ordered spare when replacement is needed, all possible scenarios are considered to construct optimization model I. The decision variables are the optimal inspection interval and the times of shortening the original inspection interval. Additionally, model II on the basis of an assumption that the spare is always ordered at time 0 is also developed. The results from a numerical example illustrated the applicability and the effectiveness of model compared to model II, and the irregular inspection policy is validated to be cost-saving compared to the regular inspection policy.

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“…Under the assumption of perfect repairs for repairable system, the system is assumed to restore to a 'good-as-new' state each time. Under this maintenance strategy, renewal process is wildly used to depict the fault occurrence processes [27,28].…”

Section: Fault Occurrence Model Based On Renewal Processmentioning

confidence: 99%

Research on time-varying characteristics of testability index based on renewal process

Zhao¹,

Qiu²,

Liu³

et al. 2016

EiN

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Inspection optimization model with imperfect maintenance based on a three-stage failure process

Cited by 9 publications

References 23 publications

Relationship between Predetermined Maintenance Interval and Maintenance Performance

Relationship between Predetermined Maintenance Interval and Maintenance Performance

A Joint Inspection-Based Preventive Maintenance and Spare Ordering Optimization Policy Using a Three-Stage Failure Process

Research on time-varying characteristics of testability index based on renewal process

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