Evaluation of existing fatigue cracks on wind turbines subjected to earthquake and wind loads
Proceedings of the 7th International Symposium on Life-Cycle Civil Engineering (IALCCE 2020), October 27-30, 2020, Shanghai, China, Shanghai, Çin, 27 - 30 Ekim 2020, cilt.1, sa.1, ss.384-389, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 1
- Doi Numarası: 10.1201/9780429343292-18
- Basıldığı Şehir: Shanghai
- Basıldığı Ülke: Çin
- Sayfa Sayıları: ss.384-389
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
Today, the wind turbine plays an important alternative role in the face of increasing energyneeds. In this area, larger-scale designs are included in order to increase the efficiency of wind turbines and energy production. Large-sized wind turbines are exposed to loads in proportion to the energy they produce. In addition to wind loads, it is vital to consider earthquake loads for wind turbines in the earthquake zone. In this study, the stress distribution of turbine towers under earthquake and wind loads was analyzed using the finite element method and it was determined that the most stress was at the base of the tower. It is aimed to determine the peak ground acceleration (PGA) values that may occur in the area where the structure is located by the propagation of the different fatigue cracks that occur during the economic life of the wind turbine according to the case that the structure is unstable.