Optimizing preventative maintenance strategies for linear assets
Sun, Y., Fidge, Colin J., & Ma, Lin (2014) Optimizing preventative maintenance strategies for linear assets. Lecture Notes in Mechanical Engineering [Proceedings of the Sixth World Congress on Engineering Asset Management 2011], pp. 91-102.
Linear assets are engineering infrastructure, such as pipelines, railway lines, and electricity cables, which span long distances and can be divided into different segments. Optimal management of such assets is critical for asset owners as they normally involve significant capital investment. Currently, Time Based Preventive Maintenance (TBPM) strategies are commonly used in industry to improve the reliability of such assets, as they are easy to implement compared with reliability or risk-based preventive maintenance strategies. Linear assets are normally of large scale and thus their preventive maintenance is costly. Their owners and maintainers are always seeking to optimize their TBPM outcomes in terms of minimizing total expected costs over a long term involving multiple maintenance cycles. These costs include repair costs, preventive maintenance costs, and production losses. A TBPM strategy defines when Preventive Maintenance (PM) starts, how frequently the PM is conducted and which segments of a linear asset are operated on in each PM action. A number of factors such as required minimal mission time, customer satisfaction, human resources, and acceptable risk levels need to be considered when planning such a strategy. However, in current practice, TBPM decisions are often made based on decision makers’ expertise or industrial historical practice, and lack a systematic analysis of the effects of these factors. To address this issue, here we investigate the characteristics of TBPM of linear assets, and develop an effective multiple criteria decision making approach for determining an optimal TBPM strategy. We develop a recursive optimization equation which makes it possible to evaluate the effect of different maintenance options for linear assets, such as the best partitioning of the asset into segments and the maintenance cost per segment.
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|Item Type:||Journal Article|
|Additional Information:||Engineering Asset Management 2011 Proceedings of the Sixth World Congress on Engineering Asset Management 2011 print isbn 9781447149927 online isbn 9781447149934|
|Keywords:||Operating Procedures, Materials Treatment, Industrial and Production Engineering, Innovation/Technology Management|
|Divisions:||Current > Research Centres > CRC Integrated Engineering Asset Management (CIEAM)
Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2014 Springer-Verlag London|
|Deposited On:||19 Mar 2015 00:16|
|Last Modified:||19 Mar 2015 22:42|
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