From the Model ribbon, click NCTs to display the Create
Noise Control Treatment Entity Editor.
Figure 1.
Figure 2. Config = Undefined
Figure 3. Config = Layered
Figure 4. Config = UserDefined
Name
A character string used to label the NCT in subsequent SEAM applications. The name may be left
blank, but the combination of the name and number must be unique.
The name cannot contain the following characters: + - / * or ^.
ID
An alphanumeric string, no longer than eight characters, used to
identify the NCT in subsequent SEAM
forms. The NCT ID does not need to be unique, however, the
combination of the name and the ID must be unique. To generate a
unique numeric ID, click the # button.
Config
Select from Undefined,
Layered, or User
Defined.
Config/Layers
Assign a number to the layer.
Field Angle
Assign an angle. If the calculation of absorption versus frequency
is selected (see x-axis), this value sets the angle range. Plane
wave absorption can be calculated for a single angle, random
incidence (0-90 degrees), field incidence (0-78 degrees), or a
user-specified range of angles. For example, the average absorption
between 45 and 60 degrees can be found by entering
’45:60’).
Layer-n
Assign an NCT layer. From the drop-down menu, select an NCT layer
model. This list contains all predefined models which apply to the
current NCT layer type. The NCT Layer-n list depends on the number
of layers.
Config/UserDefined
Import curves for Insertion Loss Resonant, Insertion Loss
Non-Resonant, and Absorption Curve. Enter a value for Mass Per
Area.
