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Experimental analysis of high and steep wave impacts and related hydroelastic effects relevant for offshore structures in steel

Abstract

An experimental strategy to investigate high and steep wave impacts and related hydroelastic effects relevant for offshore structures in steel is proposed. A physical model was shaped as a vertical rectangular surface-piercing column mimicking a semi-submersible leg at the scale of 1:40 and studied in irregular waves with two different setups, respectively, a rectangular A) rigid and a B) flexible panel installed in the impact zone. The measurements at discrete locations of the rigid and flexible panels are pressure and strain, respectively, synchronized with wave measurements and high-speed videos. The steps of the analysis involve preliminary hammer tests in dry flexible panel and the wave tests with setup A) and B) and their comparative analysis so to identify the features of the critical wave-impact scenarios, and those of the excited modes and involved added-mass effects. These steps are described using one of the most critical wave-impact scenarios observed in the tests.
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Category

Academic chapter

Language

English

Author(s)

Affiliation

  • SINTEF Ocean / Energi og transport
  • Norwegian University of Science and Technology

Year

2022

Publisher

CNR-INM Institute of Marine Engineering, Rome, Italy

Book

Proceedings of the 9th International Conference on HYDROELASTICITY IN MARINE TECHNOLOGY

ISBN

9788876170553

View this publication at Norwegian Research Information Repository