Femtet Help/Manual
 

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Field Graph

On the [Results] tab, go to



click [Field Graph] . The field displayed by contour can be graphed.

It is not available for vectors.

 

Horizontal axis needs to be distance or mode (frequency, time, step, etc).

 

  • If there are several materials existing between startpoint and endpoint, graphs will be output as many as the number of materials.

  • See also [Calculating Field Values].

 

Operations

 

 
Type

For the horizontal axis, select either Distance, Mode (frequency, time, step, etc), or Phase.

Temperature can be the horizontal axis in case of thermal load analysis. To make it selectable, set thermal load (reached temperature).

Location for Evaluation

Select from straight line, edge, or arc.
In the case of edge, select the edge in the result window.
Multiple edges can be selected by by pressing the CTRL key.
If multiple edges are selected, they must form a unicursal path.

 

  • If a location is set on the arc at the end of the analysis domain, the graph will not be displayed.
    The cause is that the edge of mesh is a straight line, and it does not place itself on the arc.
    In this case, move the coordinates slightly inward.

  • Right-click menu on the selected edge can also create a graph on edge.

Coordinates Setting

If they are on the straight line, specify the startpoint and endpoint for graphing.

If they are on the arc, enter the coordinates, vectors of center axis, and startpoint for graphing.

 

Instead of numerical entry, the points can be specified by mouse.

Vertices, nodes or edge of the model can be the startpoint and endpoint.

Select either [Points] or [Edge] by clicking each button.

 

The coordinates will be entered into the point indicated by active when clicking on a vertex or node of the model.

To change the active point, click on any coordinate of the desired point.


[Edge] will set the edge's end points to startpoint and endpoint.

[Swap Start/End] will swap the startpoint and endpoint.

 

  • Enter the coordinates before the deformation even when the displacement is shown.

Division Setting

If [Automatic] is selected, the points bordering elements will be the plot points.
The plot point's value is the averaged value of bordering elements.

"Averaging" can be switched on/off on [Contour tab].

Plot points can be specified by Number of Divisions or Interval as well.

Mode Range

Sets the modes for graphing.

 

  • You may select [Multiple modes] when the horizontal axis is distance and several modes exist for the calculation results.
    If the mode range is not specified, the mode currently on display will be graphed.

  • You may select [Multiple coordinates] when the horizontal axis is mode and you want to see the calculation results at several points.

 

Phase Range [deg]

Active only when the results are complex numbers.

Specifies Star and Finish phases. Sets the division by Number of Divisions or Interval.

 

  • If the mode range is not specified, the mode currently on display will be graphed.

How to output

[Display Graph] will activate the graphing tool, Descartes.

 

[Save As] will output the csv file of the graph data.

 

Register Setting

Registers the setting on Project Tree.

The graph setting and the calculated field values are registered.

See also [Registering Results Display Setting].

 

 

Ex.1) Horizontal axis: Distance

 

The field across the specified 2 points will be graphed.

The figure below shows the temperature distribution from Point A to Point B.

 

 

Ex.2) Horizontal axis: Mode

 

Multiple modes are calculated for thermal transient or harmonic analysis.

The field at a particular point can be graphed over the modes.

The figure below indicates the temperature change over the time: Black is for Point A and Red is for Point B.

 

 

Tooltips

The tooltips can be shown for the startpoint and endpoint.

The path connecting them will be indicated by a line.

 

For the details, refer to "Tooltips".