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Bringing the re-certification in motion - A study to explore how motion monitoring systems can be used in the re-certification process of existing offshore structures.

Juk, J.B. (2017) Bringing the re-certification in motion - A study to explore how motion monitoring systems can be used in the re-certification process of existing offshore structures.

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Abstract:Oil and gas are sources that are widely used in modern life. The extraction of these sources from beneath the sea and ocean beds is done by offshore structures. While many offshore structures exceed their original design life, the safety of the operations on these structures needs to be guaranteed. This safety is warranted during the re-certification process. In this research is explored how motion monitoring systems can be used in the re-certification process of existing offshore structures. As methodology four case studies were investigated. All case studies exist of offshore structures on which motion monitoring systems are installed. The main source of data in these case studies are in-depth interviews, with experts in the field and relevant document analysis. Together with the standards applicable on offshore structures, sections of the standards which can be verified by motion monitoring systems are captured in a confrontation framework. For cases with fixed steel offshores structures ISO 19902 is used as reference standard and for concrete offshore structures DNV-OS-C502 is used. One of the frameworks is validated by an integrity engineering from one of the case studies. From this study two main conclusions can be drawn. First is that there are sections and clauses of the standards, which can be verified by motion monitoring systems. Second, that the installation of motion monitoring systems can be used for the re-certification process of existing offshore structures. However, not the entire re-certification program can be accomplished by motion monitoring systems. In this stage, current inspection techniques still need to be used and reference points for further research on motion monitoring are illustrated in this paper.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:56 civil engineering
Programme:Construction Management and Engineering MSc (60337)
Link to this item:http://purl.utwente.nl/essays/72043
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