Abstract
The aim of this chapter is to compute dynamic stresses acting on wind turbine blades. These stresses are essential in predicting fatigue of the rotor.
The turbine rotor is exposed to wind loading of a cyclic nature, making it vulnerable to cumulative fatigue damage.
The approach used in this chapter is based on the analysis of the blade movement, by solving the blade motion equation, in order to obtain dynamic stresses.
In the first part of this chapter, modal analysis of the blades is carried out in order to compute the frequencies and the mode shapes. The results obtained in the modal analysis are used to compute dynamic stresses, for different wind loads, at the root region of the blades.
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Mahri, Z., Rouabah, M., Said, Z. (2009). Aeroelastic simulation of wind turbine blades. In: Mastorakis, N., Sakellaris, J. (eds) Advances in Numerical Methods. Lecture Notes in Electrical Engineering, vol 11. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-76483-2_27
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DOI: https://doi.org/10.1007/978-0-387-76483-2_27
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