Design implications towards inspection reduction of large scale structures

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dc.contributor.authorIoannou, Anastasia
dc.contributor.authorWang, Lin
dc.contributor.authorBrennan, Feargal P.
dc.date.accessioned2017-06-01T11:56:13Z
dc.date.available2017-06-01T11:56:13Z
dc.date.issued2017-05-09
dc.description.abstractOperational management is a key contributor in life cycle costs, especially for large scale assets which are in most times complex in structural hierarchy and with a large nominal service life. Decisions on the operational management may concern the number of inspections or maintenance strategies which may allow full utilization of structural capacity or sacrifice residual life in order to avoid an unscheduled intervention. Design of such assets is often governed by design standards which offer the designer the flexibility to take certain decisions that may affect the CAPEX to OPEX ratio such as that of building a more robust structure which may eliminate the need for costly inspection operations. This paper is investigating this approach, taking the example of offshore wind turbine support structures as the reference case, and examines the relevant provisions of the DNV-Os-J101 Standard with respect to the design implications that such a decision may have to the overall life-cycle cost of the structure. Assessment of the structural properties under different design conditions is evaluated through a combination of detailed cost model and an iterative optimization algorithm. The approach which is followed and documented, can be applicable to other complex structural systems for decision making through evaluation of service life costs. Paper presented at: Complex Systems Engineering and Development Proceedings of the 27th CIRP Design Conference Cranfield University, UK 10th – 12th May 2017.en_UK
dc.identifier.citationAnastasia Ioannou, Lin Wang, Feargal Brennan, Design Implications towards Inspection Reduction of Large Scale Structures, Procedia CIRP, Volume 60, 2017, Pages 434-439en_UK
dc.identifier.issn2212-8271
dc.identifier.urihttp://dx.doi.org/10.1016/j.procir.2017.02.024
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11954
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.subjectoffshore wind energyen_UK
dc.subjectmonopileen_UK
dc.subjectdesign optimisationen_UK
dc.subjectmaterial safety factorsen_UK
dc.subjectinspection and maintenanceen_UK
dc.subjectcost modelen_UK
dc.subjectgenetic algorithmen_UK
dc.titleDesign implications towards inspection reduction of large scale structuresen_UK
dc.typeArticleen_UK

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