Wind Turbine Blades Fibre Orientation
Controlling the pitch angle of a wind-turbine blade in fluctuating wind-speeds, without the use of active control-systems, is a subject in wind-turbine technology that has received quite some attention in recent years. Since most of the modern wind turbine blades are constructed of Fibre Reinforced Plastics (FRPs), one can make use of the anisotropic mechanical properties of such a composite structure. Using this principle for governing aeroelastic deformation of an aerodynamically-shaped component, such as a wing or a blade, is known as aeroelastic tailoring. Aeroelastic tailoring has been defined as “the (incorporation) of directional stiffness into an aircraft's structural design to ...