Creating Sensors (Static Analysis Case)

Static Analysis Case

This task shows you how to access knowledge output values by adding them into a set called Sensors.

	Sensors Set
	Output Information

You can use the Sample08.CATAnalysis document from the samples directory for this task.

Before You Begin:

	Go to `View -> Render Style -> Customize View` and make sure the `Shading, Outlines` and `Materials` options are active in the Custom View Modes dialog box.
	Activate the `Von Mises Stress (nodal value)` image by right-clicking on this feature in the specification tree and selecting the `Activate/Deactivate` option from the contextual menu. A warning appears to let you know that the solution needs to be updated. Click `OK` in the warning box.

Sensors Set

1. Right-click on the Sensors feature that appears by default in the specification tree.

Note that, in the specification tree, one sensor set appears per analysis case and that the Energy feature is also displayed, by default.

2. Select the Create Sensor option that is available in the contextual menu.

The following values are available (depending on the type of the case, different values can be accessed and added to the Sensors set):

3. Insert the sensors values available for the current static case into the specification tree, one after the other.

This list of the values that can be accessed and added corresponds to the functions available in Knowledgeware. These functions are available without having to enter the Formula command. The function is automatically valued according to the current session. Knowledgeware output parameters are created:

	`misesmax:` Maximum von Mises
	`dispmax:` Maximum Displacement
	`reaction`: Reaction on geometry associated to restrain and connection specifications
	`globalerror:` Global registered error in the computation

When inserting the reaction value, the Reaction Sensor dialog box appears:

4. If needed, select the desired Available Entities (previously created on the CATAnalysis document) from the Reaction Sensor dialog box.
Multi-selection is available.

The following Entities are available:

	Restraint specifications: `Clamp`, `Surface Slider`
	Connection specifications: `Slider Connection`
	`Reference Axis:` it is either `Global` (CATIA axis) or `User` type.

The following Axis Types are available:

	`Global (global origin)`: corresponds to the absolute origin
	`Global (local origin)`: the origin is the handling point for a virtual point entity or a geometric center for other entities.
	`User` If you select the User type reference axis, you can select the reference axis system either in the specification tree or directly in the 3D view.

The reference axis is the axis in which the reaction tensor will be computed and displayed in the 3D view.

The specification tree will result as shown here:

Output Information

5. If needed, double-click on the desired values in the specification tree to have the output information available via the Output Values dialog box.

If the sensor is not up-to-date, you will get a warning message that let you know that to have the current solution be computed and the sensor be updated, you must use the Compute All command.

The Output Values dialog box displays the body of the measure which corresponds, in Knowledgeware, to the signature of the function.

The Parameter default name can be edited. For this, double-click on the parameter value, modify the name and click OK in the Output Values dialog box to have the new name actually taken into account.

EnergyRepresents the global strain energy of the structure

Maximum Von MisesRepresents the maximum value of the von Mises criteria

Maximum DisplacementRepresents the maximum displacement value

Reaction (Reaction Tensor dialog box)Represents the reaction (force and moment) resulting from the geometry associated to the restraint specification

The axis corresponds to the axis in which the reaction tensor is computed and displayed.

Three tabs are available:

	`Force`: gives the Force values of the parameters.
	`Moment`: gives the Moment values of the parameters.
	`Origin`: gives the coordinates of the center point of the axis (relative to the global axis).

Global ErrorRepresents the global registered error in the computation

6. Click Close in the Output Values dialog box once you are satisfied with the information.