Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Wind and Structures Volume 23, Number 1, July 2016 , pages 75-90 DOI: https://doi.org/10.12989/was.2016.23.1.075 |
|
|
|
Reliability over time of wind turbines steel towers subjected to fatigue |
||
Emilio A. Berny-Brandt and Sonia E. Ruiz
|
||
| Abstract | ||
| A probabilistic approach that combines structural demand hazard analysis with cumulative damage assessment is presented and applied to a steel tower of a wind turbine. The study presents the step by step procedure to compare the reliability over time of the structure subjected to fatigue, assuming: a) a binomial Weibull annual wind speed, and b) a traditional Weibull probability distribution function (PDF). The probabilistic analysis involves the calculation of force time simulated histories, fatigue analysis at the steel tower base, wind hazard curves and structural fragility curves. Differences in the structural reliability over time depending on the wind speed PDF assumed are found, and recommendations about selecting a real PDF are given. | ||
| Key Words | ||
| fatigue; structural reliability; binomial Weibull distribution; wind turbine tower; wind speed PDF | ||
| Address | ||
| Emilio A. Berny-Brandt and Sonia E. Ruiz: Instituto de Ingeniería, Universidad Nacional Autónoma de México, Coyoacán C.P. 04510, Mexico DF | ||