Structural Data Tables
Col. Nr. 
Name 
Explanation 
Unit 

1 
Length 
Curved length distance from the first body node normalized by the body length 

2 
Mass density 
Mass per unit length 
kg/m 
3 
Bend. stiff. X 
Bending Stiffness around X (\(EI_{xx}\)) 
Nm^2 
4 
Bend. stiff. Y 
Bending Stiffness around Y (\(EI_{yy}\)) 
Nm^2 
5 
Axial stiff. 
Longitudinal Stiffness (\(EA\)) 
N 
6 
Tors. stiff. 
Torsional Stiffness (\(GJ\)) 
Nm^2 
7 
Shear stiff. 
Shear Stiffness (\(GA\)) (not used with Euler beams) 
N 
8 
Str. pitch 
Structural pitch angle between reference X axis and elastic X axis 
deg 
9 
Shear factor X 
Shear factor for force in principal bending axis X 

10 
Shear factor Y 
Shear factor for force in principal bending axis Y 

11 
Radius of gyration X 
Norm. radius of inertia corresponding to a rotation around the elastic axis X 
%chord 
12 
Radius of gyration Y 
Norm. radius of inertia corresponding to a rotation around the elastic axis Y 
%chord 
13 
Center of mass X 
Norm. center of mass position X 
%chord 
14 
Center of mass Y 
Norm. center of mass position Y 
%chord 
15 
Center of elast. X 
Norm. center of elasticity position X 
%chord 
16 
Center of elast. Y 
Norm. center of elasticity position Y 
%chord 
17 
Center of shear X 
Norm. center of shear position X 
%chord 
18 
Center of shear Y 
Norm. center of shear position Y 
%chord 
19 
Diameter 
Cross section diameter 
m 
20 
Drag 
Drag coefficient for aerodynamic drag 