Uncertainty Analysis of OC5-DeepCwind Floating Semisubmersible Offshore Wind Test Campaign

Research output: Contribution to conferencePaperpeer-review

18 Scopus Citations

Abstract

This paper examines how to assess the uncertainty levels for test measurements of the Offshore Code Comparison, Continued, with Correlation (OC5)-DeepCwind floating offshore wind system, examined within the OC5 project. The goal of the OC5 project was to validate the accuracy of ultimate and fatigue load estimates from a numerical model of the floating semisubmersible using data measured during scaled tank testing of the system under wind and wave loading. The examination of uncertainty was done after the test, and it was found that the limited amount of data available did not allow for an acceptable uncertainty assessment. Therefore, this paper instead qualitatively examines the sources of uncertainty associated with this test to start a discussion of how to assess uncertainty for these types of experiments and to summarize what should be done during future testing to acquire the information needed for a proper uncertainty assessment. Foremost, future validation campaigns should initiate numerical modeling before testing to guide the test campaign, which should include a rigorous assessment of uncertainty, and perform validation during testing to ensure that the tests address all of the validation needs.

Original languageAmerican English
Pages482-489
Number of pages8
StatePublished - 2017
Event27th International Ocean and Polar Engineering Conference, ISOPE 2017 - San Francisco, United States
Duration: 25 Jun 201730 Jun 2017

Conference

Conference27th International Ocean and Polar Engineering Conference, ISOPE 2017
Country/TerritoryUnited States
CitySan Francisco
Period25/06/1730/06/17

Bibliographical note

See NREL/CP-5000-68035 for preprint

NREL Publication Number

  • NREL/CP-5000-70764

Keywords

  • Floating offshore wind
  • Model validation
  • OC5
  • Semisubmersible
  • Uncertainty analysis

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