The feasibility of using a continuous health monitoring FMD guided wave system with the intention of retrofitting existing sub-sea beams of oil rigs, has been designed, implemented and evaluated using a steel tube in the laboratory. The system works under the premise that guided wave pulses, predominantly longitudinal, exhibit attenuation due to water loading as yielded by the software Disperse. Results show that by exploiting the wave-guide effect of steel pipes acting as communication channel, the transmissions and reception of PPM guided wave pulses leads to the discrimination, in real time, of flooding tubes. Although the tests have been conducted in air, without immersing the tube in water, the capability of automatically detecting flooded member has been demonstrated. These results are very encouraging, taking the authors to the next stage of this work, which is to perform trials using a steel tube flooded and immersed in water.
A continuous health monitoring guided wave FMD system for retrofit to existing offshore oilrigs
Ein Wasserflutungnachweissystem zur kontinuierliche Zustandsüberwachung mit geführten Schallwellen zur Nachrüstung existierender Offshore-Ölbohrinseln
2009
8 Seiten, 8 Bilder, 12 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
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