10089_001.pdf - Load set calculation - ECN

Load set calculation DOWEC 6MW H. Efdé
3.3 Forces, moments and deflections.
Phatas notation Unit Description
Table 1: Blade co-ordinate system
Mxb[i], Myb[i] [kNm] Total moment of blade i around the blade foot in x and y-direction of
the rotating blade co-ordinate system, non-pitching.
Mxb[i]-p, Myb[i]-p [kNm] Total moment of blade i around the blade foot in x and y-direction of
the rotating blade co-ordinate system, pitching.
Tip disp. flap [i] [mm] Total displacement of tip of blade [i] in X-direction.
Tip disp. lag [i] [mm] Total displacement of tip of blade [i] in Y-direction.
Table 2: Hub co-ordinate system
Fxn, Fyn, Fzn [kN] Total force at a predefined location behind the rotor centre in x, y
and z-direction of the non rotating hub co-ordinate system.
Mxn, Myn, Mzn [kNm] Total moment around the x, y and z-direction at a predefined
location behind the rotor centre of the non rotating hub co-ordinate
system.
Fxn-r, Fyn-r, Fzn-r [kN] Total force at a predefined location behind the rotor centre in x, y
and z-direction, rotating rotor co-ordinate system.
Mxn-r, Myn-r, [kNm] Total moment around the x, y and z-direction at a predefined
Mzn-r
location behind the rotor centre , rotating rotor co-ordinate system.
Torsional
deformation rotor
shaft
[deg]
Rotor angular
acceleration
[deg/s2]
Axial force, rotor [kN] Axial aerodynamic force on the rotor
Aero power, rotor [kW] Aerodynamic power on the rotor
Pitch angle [i] [deg] Pitch angle of blade [i], angle blade tip with respect to the rotor
plane (θ).
R45.04/01.03/03 Stentec, 3-1-03 page 8