Details
| Original language | English |
|---|---|
| Title of host publication | International Conference on ‘Wind Energy Harvesting … (focusing on exploitation of the Mediterranean area)’ |
| Pages | 269-276 |
| Number of pages | 11 |
| Publication status | Published - 2018 |
| Event | Winercost ´18 -Wind Energy Harvesting (…focusing on exploitation of the Mediterranean Area): Final Conference 2018 - Cantanzaro, Italy Duration: 21 Mar 2018 → 23 Mar 2018 http://www.winercost.com/index.php/activities/conferences/catanzaro-lido-2018 |
Abstract
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International Conference on ‘Wind Energy Harvesting … (focusing on exploitation of the Mediterranean area)’. 2018. p. 269-276 TS5.1.1.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Fatigue analysis on innovative 10 MW offshore jacket structure using integrated design approach
AU - Schaumann, Peter
AU - Glisic, Ana
AU - Nguyen, Ngoc Do
PY - 2018
Y1 - 2018
N2 - The fatigue limit state (FLS) of fixed offshore wind turbine structures is critical and difficult to handle. As it is the most common design driving criteria for offshore structures, the simulation and calculation of this phenomenon must be as accurate as possible. Research is needed to improve the current design. There are mainly two design approaches available: Integrated design approach (IDA) and Sequential design approach (SDA). The IDA, described in this paper, considers the coupled structural analysis of a whole wind turbine system exposed to wind- and wave-induced loads in an aero-hydro-elastic solver. The results given by solver are loads series, which are afterwards used for obtaining the stress series with stress concentration factors (SCF) included. The stresses are processed in terms of rainflow counting and finally, fatigue damage of a critical K-joint is obtained externally, to avoid the use of damage equivalent loads (DEL) as by default in the solver, but to calculate it by means of the Efthymiou principle. The whole procedure with methods is explained in this paper.
AB - The fatigue limit state (FLS) of fixed offshore wind turbine structures is critical and difficult to handle. As it is the most common design driving criteria for offshore structures, the simulation and calculation of this phenomenon must be as accurate as possible. Research is needed to improve the current design. There are mainly two design approaches available: Integrated design approach (IDA) and Sequential design approach (SDA). The IDA, described in this paper, considers the coupled structural analysis of a whole wind turbine system exposed to wind- and wave-induced loads in an aero-hydro-elastic solver. The results given by solver are loads series, which are afterwards used for obtaining the stress series with stress concentration factors (SCF) included. The stresses are processed in terms of rainflow counting and finally, fatigue damage of a critical K-joint is obtained externally, to avoid the use of damage equivalent loads (DEL) as by default in the solver, but to calculate it by means of the Efthymiou principle. The whole procedure with methods is explained in this paper.
M3 - Conference contribution
SP - 269
EP - 276
BT - International Conference on ‘Wind Energy Harvesting … (focusing on exploitation of the Mediterranean area)’
T2 - Winercost ´18 -Wind Energy Harvesting (…focusing on exploitation of the Mediterranean Area)
Y2 - 21 March 2018 through 23 March 2018
ER -