Cristin-resultat-ID: 1509465
Sist endret: 1. november 2017 04:16
NVI-rapporteringsår: 2017
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2017

Determination of Environmental Conditions Relevant for the Ultimate Limit State at an Exposed Aquaculture Location

Bidragsytere:
  • Pål Takle Bore og
  • Jørgen Amdahl

Bok

ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 3B: Structures, Safety and Reliability
ISBN:
  • 978-0-7918-5766-3

Utgiver

ASME Press
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: 2017
Volum: 2017
Hefte: 3B
Antall sider: 14
ISBN:
  • 978-0-7918-5766-3

Klassifisering

Fagfelt (NPI)

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

Finansiering

  • Norges forskningsråd
    Prosjektkode: 223254
  • Norges forskningsråd
    Prosjektkode: 237790

Beskrivelse Beskrivelse

Tittel

Determination of Environmental Conditions Relevant for the Ultimate Limit State at an Exposed Aquaculture Location

Sammendrag

Methods for determination of environmental conditions relevant for the ultimate limit state at an exposed aquaculture location are proposed. The considered location is in Frohavet, northwest of Trondheim, Norway. Wind, waves and current are considered, but as more severe wave conditions are expected to be the most influential environmental factor when going from sheltered to more exposed locations, particular focus has been given on the description of wave conditions. The estimated long term description of wind and waves are based on 16 year of SWAN hindcast data, where the wave data have been calibrated against one year of in-situ measurements. One month of current measurements were available. The initial distribution method is used to determine the long term distribution of wind and wave conditions. The data fit the applied distributions well, but the sea state characteristics are seen to be highly directional dependent, which is important to take into account. The effect of using only one year of wave data is also investigated, showing that this can lead to significant underestimation of the extreme values. Concepts from the environmental contour line method are applied for determination of sea states corresponding to a given annual probability of exceedance. A deterministic approach from NS 9415 is used to determine the extreme current velocities. Comments on the use of directional criteria for design are also given.

Bidragsytere

Pål Takle Bore

  • Tilknyttet:
    Forfatter
    ved Institutt for marin teknikk ved Norges teknisk-naturvitenskapelige universitet
Aktiv cristin-person

Jørgen Amdahl

  • Tilknyttet:
    Forfatter
    ved Institutt for marin teknikk ved Norges teknisk-naturvitenskapelige universitet
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