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Load type > Mean lift

Definition of the lifting component of a wind loading across the element axis (wind direction normal to the axis) (q-l = cl * Rho * v^2 / 2).

SettingDescription
From, To, Step Element series to be loaded
Assembly Alternative to load assignment via element series: Name of the assembly to be loaded. The specified load is applied to every element of the specified assembly.
Rho Air density (tons per volume unit)
Note: No default value. The density must be explicitly specified. (Value appr. 0.00125 t/m^3; mass unit always tons t, cannot be changed)
Alpha Attack angle (angle of incidence, angle between the local z-axis of the element and the wind direction, positive from +z to the wind direction in direction +y
Note: Loads in negative z-direction may be modeled either by defining an  attack angle of 180° or by specifying a negative drag coefficient
v-beg Wind velocity at element begin
v-end Wind velocity at element end
Note: The load intensity q-l = cl * Rho * v^2 / 2 is calculated for the  element begin and element end, and then applied as trapezoidal load.
cl Lift coefficient, positive, if the force acts in the +y direction.
cd' Derivation of drag coefficient with respect to alpha (irrelevant for static loading).
Options: None, Mult. by CS width, Mult. by CS depth
  • None: Area included in the lift coefficient (q = cl * Rho * v^2 / 2)
  • Mult. By CS width: Lift coefficient related to the cross-section width b (q-l = cl * b * Rho * v^2 / 2)
  • Mult. By CS depth: Lift coefficient related to the cross-section depth h (q-l = cl * h * Rho * v^2 / 2)
[OK+Series] To continue with further input of the same load type