Wind and Structures

  • 제23권1호
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  • Pages.75-90
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  • 2016
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Reliability over time of wind turbines steel towers subjected to fatigue

  • Berny-Brandt, Emilio A. (Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico) ;
  • Ruiz, Sonia E. (Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico)
  • 투고 : 2015.11.06
  • 심사 : 2016.05.30
  • 발행 : 2016.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

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.

키워드

과제정보

연구 과제 주관 기관 : DGAPA-UNAM

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피인용 문헌

  1. A Novel Tripod Concept for Onshore Wind Turbine Towers vol.14, pp.18, 2021, https://doi.org/10.3390/en14185772