TY - GEN
T1 - Digital image correlation application to a modular flexible floating structure
AU - Zhang, Min
AU - Schreier, Sebastian
AU - Hopman, Hans
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
KW - Digital image correlation
KW - Experimental investigation
KW - Fluid-structure interaction
KW - Large floating structures
KW - Modular flexible floating structure
UR - http://www.scopus.com/inward/record.url?scp=85090910543&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85090910543
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 1039
EP - 1046
BT - Proceedings of the 30th International Ocean and Polar Engineering Conference
PB - International Society of Offshore and Polar Engineers (ISOPE)
T2 - 30th International Ocean and Polar Engineering Conference, ISOPE 2020
Y2 - 11 October 2020 through 16 October 2020
ER -