Digital image correlation application to a modular flexible floating structure

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Abstract

In lab-scale model tests of modular floating structures, motion measurement is sensitive to mechanical influence of contact-based measurement systems. To investigate alternatives, model tests of a modular flexible floating structure interacting with regular waves was carried out in the towing tank of Delft University of Technology. Non-contact 3D digital image correlation (3D-DIC) technique was employed to evaluate the structural displacement. Stereovision based system Optotrak Certus of Northern Digital Inc., which relies on cable connection to the model, was used as a reference system to validate the DIC results. Model motions were analyzed and compared between the two systems. Comparisons show that DIC results agree well with stereovision results, indicating that the DIC system is an accurate motion measurement of floating structures in waves.

Original languageEnglish
Title of host publicationProceedings of the 30th International Ocean and Polar Engineering Conference
PublisherInternational Society of Offshore and Polar Engineers (ISOPE)
Pages1039-1046
ISBN (Electronic)978-1-880653-84-5
Publication statusPublished - 2020
Event30th International Ocean and Polar Engineering Conference, ISOPE 2020 - Virtual, Online
Duration: 11 Oct 202016 Oct 2020

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2020-October
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference30th International Ocean and Polar Engineering Conference, ISOPE 2020
CityVirtual, Online
Period11/10/2016/10/20

Keywords

  • Digital image correlation
  • Experimental investigation
  • Fluid-structure interaction
  • Large floating structures
  • Modular flexible floating structure

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  • Cite this

    Zhang, M., Schreier, S., & Hopman, H. (2020). Digital image correlation application to a modular flexible floating structure. In Proceedings of the 30th International Ocean and Polar Engineering Conference (pp. 1039-1046). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2020-October). International Society of Offshore and Polar Engineers (ISOPE).