Many repairable systems degrade with time and are subjected to time-varying loads. Their characteristics may change over time considerably, making the assessment of their performance and hence their design difficult. To address this issue, we introduce in this paper the concept of flexible design of repairable systems under time-dependent reliability considerations. In flexible design, the system can be modified in the future to accommodate uncertain events. As a result, regardless of how uncertainty resolves itself, a modification is available that will keep the system close to optimal provided failure events have been properly characterized. We discuss how flexible design of repairable systems requires a fundamentally new approach and demonstrate its advantages using the design of a hydrokinetic turbine. Our results show that long-term metrics are improved when time-dependent characteristics and flexibility are considered together.
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ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 2–5, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5708-3
PROCEEDINGS PAPER
Flexible Design of Systems Considering Time-Dependent Reliability
Vijitashwa Pandey,
Vijitashwa Pandey
Oakland University, Rochester, MI
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Zissimos P. Mourelatos,
Zissimos P. Mourelatos
Oakland University, Rochester, MI
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Annette Skowronska
Annette Skowronska
Oakland University, Rochester, MI
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Vijitashwa Pandey
Oakland University, Rochester, MI
Zissimos P. Mourelatos
Oakland University, Rochester, MI
Annette Skowronska
Oakland University, Rochester, MI
Paper No:
DETC2015-46625, V02BT03A051; 9 pages
Published Online:
January 19, 2016
Citation
Pandey, V, Mourelatos, ZP, & Skowronska, A. "Flexible Design of Systems Considering Time-Dependent Reliability." Proceedings of the ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 2B: 41st Design Automation Conference. Boston, Massachusetts, USA. August 2–5, 2015. V02BT03A051. ASME. https://doi.org/10.1115/DETC2015-46625
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