Gravity definition

@GRAVITY_NAME {GravityName} {
@GRAVITY_VECTOR { g1, g2, g3}
@COMMENTS {CommentText}


  1. The components of the gravity vector g = (g1, g2, g3) are measured in the inertial frame I.
  2. A 1D function, Fun1DName, of type TIME_FUNCTION is associated with the gravity vector. This time function is only used for static analysis. It allows to ramp up the value of gravity when required for convergence purposes.
  3. It is possible to attach comments to the definition of the object; these comments have no effect on its definition.