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Using Value Assessment to Drive PHM System Development in Early Design
Oregon State University, Corvallis, Oregon, 97330, USA. .
Oregon State University, Corvallis, Oregon, 97330, USA. .
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics. Palo Alto Research Center, Palo Alto, California 94304.ORCID iD: 0000-0002-0240-0943
Oregon State University, Corvallis, Oregon, 97330, USA.
2019 (English)In: Proceedings of the Annual Conference of the Prognostics and Health Management Society 2019, Prognostics and Health Management Society , 2019Conference paper, Published paper (Other academic)
Abstract [en]

Prognostics and Health Management (PHM) systems have been shown to provide many benefits to the reliability, performance, and life of engineered systems. However, because of trade-offs between up-front design and implementation costs, operational performance, and reliability, it may not be obvious in the early design phase whether one PHM system will be more beneficial to another, or whether a PHM system will provide benefit compared to a traditional reliability approach. These trade-offs make the commitment required to pursue PHM features in the early design phase difficult to justify. In this paper, a cost model incorporating trade-offs among design cost, operational performance, and failure risk is used to provide a comprehensive value comparison of health management options to motivate design decision-making. This approach is then demonstrated in a simple case study comparing the use of a PHM system for condition-based maintenance or diagnostic-based recovery with implementing redundancy and increased inspection in the design. Then it is shown how different model inputs and assumptions result in a different system value (and different design choice from the process), illustrating the usefulness of cost modelling to capture design trade-offs. Using this approach, decisions about pursuing PHM can be made early, enabling the benefits to be fully leveraged in the design process to achieve increased operational resilience.

Place, publisher, year, edition, pages
Prognostics and Health Management Society , 2019.
Series
Proceedings of the Annual Conference of the Prognostics and Health Management Society, ISSN 2325-0178 ; 11(1)
Keywords [en]
cost-benefit analysis, early design, value analysis, value assessment, decision-making, systems engineering, requirements engineering, conceptual design
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
URN: urn:nbn:se:ltu:diva-78861DOI: 10.36001/phmconf.2019.v11i1.779Scopus ID: 2-s2.0-85083955085OAI: oai:DiVA.org:ltu-78861DiVA, id: diva2:1429645
Conference
Annual Conference of the Prognostics and Health Management Society, 23-26 September, 2019, Scottsdale, USA
Note

ISBN för värdpublikation: 978-1-936263-29-5

Available from: 2020-05-12 Created: 2020-05-12 Last updated: 2020-05-12Bibliographically approved

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Goebel, Kai

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