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Loads on wind turbine blades

H. Söker,     , Deutsches Windenergie-Institut GmbH, Germany

Abstract:

This chapter deals with loads on wind turbine blades. It describes the load generating process, wind fields, and the concepts of stresses and strains. Aerodynamic loads, loads introduced by inertia, gravitation and gyroscopic effects, and actuation loads are discussed. The loading effects on the rotor blades and how they are interconnected with the dynamics of the turbine structure are highlighted. There is a discussion on how stochastic loads can be analysed and an outline of cycle counting methodology. The method of design verification testing is briefly described.

Key words

wind turbine loads

wind field

global loads

local strains and ...

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