Cristin-resultat-ID: 1282870
Sist endret: 31. mai 2017, 08:54
NVI-rapporteringsår: 2015
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2015

Impact Loads From Drop Test of a Circular Section With 42 Force Transducers

Bidragsytere:
  • Gunnar Lian
  • Ole David Økland og
  • Tone Margrete Gran Vestbøstad

Bok

ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
ISBN:
  • 978-0-7918-5647-5

Utgiver

The American Society of Mechanical Engineers (ASME)
NVI-nivå 1

Serie

International Conference on Offshore Mechanics and Arctic Engineering (OMAE) [proceedings]
ISSN 1523-651X
NVI-nivå 1

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2015
Volum: 11
Hefte: 2015
Antall sider: 10
ISBN:
  • 978-0-7918-5647-5

Klassifisering

Fagfelt (NPI)

Fagfelt: Marin og maritim teknologi
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

Impact Loads From Drop Test of a Circular Section With 42 Force Transducers

Sammendrag

Results from previous model test campaigns of various large-volume platforms indicate that wave impact loads on vertical platform columns can become high in extreme sea states. Moreover, column slamming is a highly non-linear and complex problem and reliable estimation of Ultimate Limit State (ULS) and Accidental Limit State (ALS) design loads is a challenge. A model test campaign dedicated to investigate column slamming has been performed on a large volume platform at Marintek. Special effort was put into designing a model and instrumentation package that could capture the complex phenomenon of slamming due to breaking or near breaking waves as accurately as possible. As part of the validation of the instrumentation for this test, drop tests were performed on a circular section with 42 force transducers. In the model test, this section was mounted on one of the platform columns for measuring wave impacts. In the present drop tests, the same section was dropped in still water in a small basin. Different impact velocities and impact angles were investigated. High-speed video recordings were also used to document the tests. This paper presents the setup used in the drop tests. The results from the drop tests are discussed and compared to theoretical solutions.

Bidragsytere

Gunnar Lian

  • Tilknyttet:
    Forfatter
    ved Institutt for maskin, bygg og materialteknologi ved Universitetet i Stavanger
  • Tilknyttet:
    Forfatter
    ved Equinor

Ole David Økland

  • Tilknyttet:
    Forfatter
    ved Skip og havkonstruksjoner ved SINTEF Ocean

Tone Margrete Gran Vestbøstad

  • Tilknyttet:
    Forfatter
    ved Equinor
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ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering .

NN, .. 2015, The American Society of Mechanical Engineers (ASME). Vitenskapelig antologi/Konferanseserie
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