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Modal test results of a ship under operational conditions

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Authors:
  • Orlowitz, Esben ;
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    Institute of Technology and Innovation, Faculty of Engineering, SDU
  • Brandt, Anders
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    Orcid logo0000-0003-2025-7842
    Institute of Technology and Innovation, Faculty of Engineering, SDU
Editor:
Allemang, Randall
DOI:
10.1007/978-3-319-04774-4_20
Abstract:
Skibe er udsat for et komplekst vibration miljø, påvirket af havet, samt driftsforholdene. Især er det vanskeligt at anslå analytisk værdier for de hydrodynamiske påvirkninger. Eksperimentelle resultater er derfor vigtigt for at kontrollere de analytiske modeller. I den foreliggende artikel præsenteres foreløbige resultater fra en fuld skala modal test af en Ro-Lo skib, under tre forskellige driftsbetingelser. Da modal test i fuld skala skibe i drift er sjældne, præsenteres forsøgs opstillingen sammen med foreløbige modal parametre udtrukket fra målingerne. Denne foreløbige undersøgelse fokuserer på driftsforhold påvirkning af de modal parametre og viser en betydelig variation af modal dæmpning af skibet i drift, med cirka 400%, 200% og 400% forskel i de første tre globale lodrette bøjning modes, ved forskellige operations hastigheder.
ISBN:
9783319047737, 9783319047744
Type:
Conference paper
Language:
Danish
Published in:
Conference Proceedings of the Society for Experimental Mechanics Series: Proceedings of the 32nd Imac, a Conference and Exposition on Structural Dynamics, 2014, p. 199-206
Keywords:
Vessel; Skibe; Vibrationer; dynamiske modeller; modal analyse
Main Research Area:
Science/technology
Publication Status:
Published
Series:
Conference Proceedings of the Society for Experimental Mechanics Series
Review type:
Peer Review
Conference:
32nd International Modal Analysis Conference, 2014
Publisher:
Springer
Submission year:
2014
Scientific Level:
Scientific
ID:
2185998174

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