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Blade Profile Properties

A profile is defined by:

  • A reference point P defined by the beam finite element in DeepLines (reference point of the Mechanical Blade coordinate system). The structural twist provides the rotation around the blade axis in the Blade coordinate system. Stiffness and inertia are defined in this reference system.

  • The aerodynamic center position (x and y coordinate) and the CoG position (x and y coordinate) are defined in the in the Mechanical Blade (MB) frame (red frame blow)

  • The aerodynamic pitch defines the direction for the aerodynamic loads

Note

The three nodes are at the same location unless COG and the AeroCenter locations are defined in the local frame of the blade section. To do so, their X and Y local coordinates shall be intr.

Note 2

Mechanical stiffnesss are applied on the beam element point; no modification is introduced due to local (X, Y) coordinates of the COG. These local (X, Y) coordinates of the COG are used to calculate the moment due to the section weight to be applied on the beam point.