Abstract
The 3d finite element model of wind power tower is established, and strain, displacement, bending moment and shearing forcing were calculated under different angle of wind blade and opening direction of wind power tower. Finally, the mechanical performance of wind power tower in different wind directions were analyzed with limited element method. The results show that the maximum strain appeared at the opening position under 180° between wind blade and opening direction, while the maximum strain value appeared at the upper position of the wind power tower under 0° and 90°. Shearing force and bending moment under 180° are greatest while shearing force and bending moment under 0° are the least. The force of wind power tower facing wind direction is greater than that 90°sidewind, and the strength design of wind power tower under 50 years design wind loads satisfies the requirement.
Publisher
Trans Tech Publications, Ltd.
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