Reliability Analysis of a Mono-Tower Platform

Poul Henning Kirkegaard, I. Enevoldsen, John Dalsgaard Sørensen, Rune Brincker

Publikation: Bidrag til tidsskriftTidsskriftartikelFormidling

2 Citationer (Scopus)

Resumé

In this paper, a reliability analysis of a Mono-tower platform is presented. Te failure modes considered are yielding in the tube cross sections and fatigue failure in the butts welds. The fatigue failrue mode is investigated with a fatigue model, where the fatigue strength is expressed through SN relations. In determining the cumulative fatigue damage, Palmgren-Miner's rule is applied. Element reliability as well as systems reliability, is estimated using first-order reliability methods(FORM). The sensitivity of the systems reliability to various parameters is investigated. It is shown that the fatigue limit state is a significant failure mode for the Mono-tower platform. Further, it is shown for the fatigue failure mode that the largest contributions to the overall uncertainty are due to the damping ratio, the inertia coefficient, the stress concentration factor, the model uncertainties, and the parameters describing the fatigue strength.
OriginalsprogEngelsk
TidsskriftJournal of Offshore Mechanics and Arctic Engineering-Transactions of The Asme
Vol/bind112
Udgave nummer3
Sider (fra-til)237-243
Antal sider7
ISSN0892-7219
StatusUdgivet - 1990

Fingerprint

Reliability analysis
Towers
Fatigue of materials
Failure modes
Miners
Fatigue damage
Stress concentration
Welds
Damping
Uncertainty
Fatigue strength

Emneord

  • Fatigue
  • Failure
  • Fatigue Failure
  • Palmgren-Miner's Rule

Citer dette

Kirkegaard, Poul Henning ; Enevoldsen, I. ; Sørensen, John Dalsgaard ; Brincker, Rune. / Reliability Analysis of a Mono-Tower Platform. I: Journal of Offshore Mechanics and Arctic Engineering-Transactions of The Asme. 1990 ; Bind 112, Nr. 3. s. 237-243.
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title = "Reliability Analysis of a Mono-Tower Platform",
abstract = "In this paper, a reliability analysis of a Mono-tower platform is presented. Te failure modes considered are yielding in the tube cross sections and fatigue failure in the butts welds. The fatigue failrue mode is investigated with a fatigue model, where the fatigue strength is expressed through SN relations. In determining the cumulative fatigue damage, Palmgren-Miner's rule is applied. Element reliability as well as systems reliability, is estimated using first-order reliability methods(FORM). The sensitivity of the systems reliability to various parameters is investigated. It is shown that the fatigue limit state is a significant failure mode for the Mono-tower platform. Further, it is shown for the fatigue failure mode that the largest contributions to the overall uncertainty are due to the damping ratio, the inertia coefficient, the stress concentration factor, the model uncertainties, and the parameters describing the fatigue strength.",
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Reliability Analysis of a Mono-Tower Platform. / Kirkegaard, Poul Henning; Enevoldsen, I.; Sørensen, John Dalsgaard; Brincker, Rune.

I: Journal of Offshore Mechanics and Arctic Engineering-Transactions of The Asme, Bind 112, Nr. 3, 1990, s. 237-243.

Publikation: Bidrag til tidsskriftTidsskriftartikelFormidling

TY - JOUR

T1 - Reliability Analysis of a Mono-Tower Platform

AU - Kirkegaard, Poul Henning

AU - Enevoldsen, I.

AU - Sørensen, John Dalsgaard

AU - Brincker, Rune

PY - 1990

Y1 - 1990

N2 - In this paper, a reliability analysis of a Mono-tower platform is presented. Te failure modes considered are yielding in the tube cross sections and fatigue failure in the butts welds. The fatigue failrue mode is investigated with a fatigue model, where the fatigue strength is expressed through SN relations. In determining the cumulative fatigue damage, Palmgren-Miner's rule is applied. Element reliability as well as systems reliability, is estimated using first-order reliability methods(FORM). The sensitivity of the systems reliability to various parameters is investigated. It is shown that the fatigue limit state is a significant failure mode for the Mono-tower platform. Further, it is shown for the fatigue failure mode that the largest contributions to the overall uncertainty are due to the damping ratio, the inertia coefficient, the stress concentration factor, the model uncertainties, and the parameters describing the fatigue strength.

AB - In this paper, a reliability analysis of a Mono-tower platform is presented. Te failure modes considered are yielding in the tube cross sections and fatigue failure in the butts welds. The fatigue failrue mode is investigated with a fatigue model, where the fatigue strength is expressed through SN relations. In determining the cumulative fatigue damage, Palmgren-Miner's rule is applied. Element reliability as well as systems reliability, is estimated using first-order reliability methods(FORM). The sensitivity of the systems reliability to various parameters is investigated. It is shown that the fatigue limit state is a significant failure mode for the Mono-tower platform. Further, it is shown for the fatigue failure mode that the largest contributions to the overall uncertainty are due to the damping ratio, the inertia coefficient, the stress concentration factor, the model uncertainties, and the parameters describing the fatigue strength.

KW - Fatigue

KW - Failure

KW - Fatigue Failure

KW - Palmgren-Miner's Rule

KW - Fatigue

KW - Failure

KW - Fatigue Failure

KW - Palmgren-Miner's Rule

M3 - Journal article

VL - 112

SP - 237

EP - 243

JO - Journal of Offshore Mechanics and Arctic Engineering

JF - Journal of Offshore Mechanics and Arctic Engineering

SN - 0892-7219

IS - 3

ER -