Scale

Select the method of scaling the modal force.  The scaling can be expressed in one of the following ways.

Linear

Use this method to specify a constant scale.  Enter a real number in the Value field.

Curve

Scale expressed in the form of a curve.

Resolve the Curve by clicking on the Curve collector and selecting a Curve entity from the Select a Curve dialog.

A Curve entity should be pre-defined.  Specify a solver function expression as an Independent variable with regard to which scale is to be applied.

Select a method of Interpolation.  Available choices are AKIMA, CUBIC, LINEAR, and QUINTIC.

Spline3D

Scale expressed as a function of two independent variables in the form of a three dimensional spline data.

A Spline3D entity should pre-defined. Resolve the 3D spline by clicking on the Spline3D collector and selecting a Spline3D entity from the Select a Spline3D dialog.

Specify an expression each under Independent variable X and Independent variable Z.  Select a method of Interpolation. Available choices are AKIMA, CUBIC, LINEAR, and QUINTIC. The Interpolation choices are applicable to Independent variable X only.  Data along Independent variable Z is linearly interpolated.

Expression

Scale expressed in the form of a solver function.

LoadCase ID

Select the load case from the list. The list contains the load case id as available in the flexible body H3D. Load case id generally matches with the ID specified in the finite element deck (.fem in case of OptiStruct) that was used to generate the flexible body.