Create/ Modify Function

Function

Define a spatial function which is used to apply location-varying load and boundary conditions.

A function can be defined by filling the table on the left or by writing a numerical equation on the right. The value between two inputs will be determined by linear interpolation.

Call

Model > Function

<Create/Modify Function>

Name

Enter the name of function.
 

Number of Variables

Specify the number of variable (1 or 2) in the function.
 

Ref. Csys

Selected the reference coordinate system of the function.
 

Select Variable

Select the variable in the function.
 

Equation

Write a numerical equation to define the function.
 

From, To, Inc

Specify the domain of the selected variable.
 

Value

Enter a value or an equation. The name of variable must be kept as it is specified. (Rect. Csys: X, Y, Z, Cylid. Csys: R, T, Z)
 

<Example>

(1) In the rectangular coordinate system, define a function of 2*X^2 from X=0 to X=100 with an increment of 5;

From: 0, To: 100, Inc: 5, Value: 2*X^X

(2) In the cylindrical coordinate system, define a function of sin(T) from T=0 to T=360 with an increment of 10;

From: 0, To: 360, Inc: 10, Value: sin(T)

Calculate

Fill out the table on the left based on the equation defined in Value.
 

Scale Value

Enter a scale factor and press the scale button.  The scale factor will be multiplied by the original function value.  

Note: The original function values will be overwritten.
 

Reset

Reset all function definitions including variable and value.
 

Extrapolation

Select a method to calculate values which exceed defined domain.
 

Set to Zero

Set them to 0.
Closest Value

Set them equal to the closest value.
Linear Extrapolation

Calculate them using linear extrapolation.

<Extrapolation>