Effects of Seismic and Aerodynamic Loads on a 5 MW Scale Steel Wind Turbine
9 th TURKISH CONFERENCE ON EARTHQUAKE ENGINEERING, İstanbul, Türkiye, 2 - 03 Haziran 2021, cilt.1, sa.1, ss.736-744, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 1
- Basıldığı Şehir: İstanbul
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.736-744
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
Renewable energy sources continue to be the most popular energy sources nowadays. The negative effects of fossil energy resources on the environment have made such energy resources even more important. Wind energy, which is the most widely used of these, is discussed in this study. Important developments are taking place in the wind energy industry all over the world. Numerous studies have been addressed in this regard, but seismic effects have recently been studied. Although the analysis of wind turbines under wind loads are required, if these structures are built in high seismic regions, the analysis of these structures under strong ground motion is also needed. The effects of these two important dynamic loading on the complex dynamic structure of the turbine were investigated by examining two different situations. These situations are; The situation in which the earthquake load did not affect while the turbine was in operation and the situation where both dynamic loads were affected while the turbine was in operation. Turbulent wind is used as wind load. Seismic effects were investigated by considering 3 different strong ground motion. The full system model of the turbine was developed in the FAST finite element program, a special code for wind turbines, developed by the National Renewable Energy Laboratory (NREL). As a result of all these analyzes, it was observed that while applying the wind loads only, the wind load had great effects in low modes. In the analysis, in which both seismic and wind loads are applied at the same time, it was understood that aerodynamic loads caused a certain damping in the system as a result the internal forces due to earthquake loads are increased.