A contribution to risk-based inspection and maintenance planning for deteriorating pipelines and pressure vessels

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atmire.migration.oldid6070
dc.contributor.advisorDann, Markus R
dc.contributor.authorHaladuick, Shane
dc.contributor.committeememberMaes, Marc
dc.contributor.committeememberAchari, Gopal
dc.contributor.committeememberEgberts, Philip
dc.contributor.committeememberHuang, Qindan
dc.date.accessioned2017-09-29T18:45:26Z
dc.date.available2017-09-29T18:45:26Z
dc.date.issued2017
dc.date.submitted2017en
dc.description.abstractEngineering systems are subject to deterioration processes, such as corrosion and fatigue, which reduce the resistance to failure. If failure occurs, it can have large social, economic, and environmental consequences. To mitigate this risk, regular inspections and maintenance are performed. To minimize the overall cost of operating the system, it is important to optimize the inspection and maintenance plan. Lifecycle risk-based inspection and maintenance planning, which involves determining the expected total cost of operating a system over its lifecycle, is the most established method of determining the optimal inspection and maintenance plan. However, lifecycle risk-based inspection and maintenance planning for complex engineering systems with many components requires a detailed analysis that can be computationally demanding; therefore, simplifications and assumptions are commonly used in the literature. The objective of this dissertation is to expand the state of knowledge in risk-based inspection and maintenance planning for pipelines and pressure vessels, removing many common assumptions and simplifications. Some aspects of the research specifically target pipelines or pressure vessels, while others are generic to any engineering system. Specifically regarding pressure vessels, a simple methodology is presented to determine the optimal maintenance time for a pressure vessel with an unexpectedly severe defect. This methodology is then expanded to account for the dependent failure events in pressure vessels with multiple defects and failure modes. For pipelines, a risk-based maintenance methodology is developed to decide whether it is better to continuously repair defects in a pipeline or to replace entire pipeline sections. This methodology also examines the impact of an uncertain lifecycle on risk-based maintenance planning. For general engineering systems, the use of heuristic algorithms in improving the computational efficiency of solving risk-based inspection and maintenance optimization problems is examined. Finally, a methodology is developed to perform risk-based inspection planning for the next inspection type, without requiring a lifecycle analysis. This study aids system operators in determining the optimal inspection and maintenance plan. It also provides methodology to perform risk-based inspection and maintenance planning in a computationally efficient or simpler manner, to make the techniques more practically applicable.en_US
dc.identifier.citationHaladuick, S. (2017). A contribution to risk-based inspection and maintenance planning for deteriorating pipelines and pressure vessels (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/24682en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/24682
dc.identifier.urihttp://hdl.handle.net/11023/4180
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectEngineering--Civil
dc.subjectEngineering--Industrial
dc.subjectEngineering--Petroleum
dc.subject.otherrisk-based inspection and maintenance planning
dc.subject.otherpipelines
dc.subject.otherpressure vessels
dc.subject.otherlifecycle analysis
dc.subject.otherdeterioration
dc.subject.otherReliability
dc.subject.otherdecision analysis
dc.subject.othergenetic algorithm
dc.subject.otherCorrosion
dc.titleA contribution to risk-based inspection and maintenance planning for deteriorating pipelines and pressure vessels
dc.typedoctoral thesis
thesis.degree.disciplineCivil Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameDoctor of Philosophy (PhD)
ucalgary.item.requestcopytrue
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