36.2.5.4. MAT (Mechanical Auto Tensioner)_Ratchet Type
![../_images/image05422.png](../_images/image05422.png)
Figure 36.45 Connectivity of MAT_Ratchet
Click Geometry of Tensioner in Component Builder dialog box. The following dialog box can appear.
![../_images/image05519.png](../_images/image05519.png)
Figure 36.46 Group Tensioner MAT Ratchet property page [Group Mechanical AT Ratchet Property page]
Contact Shape: Three Shape Types for the contact between a tensioner and a tensioner guide.
Figure 36.47 Contact Shape Property dialog box
Shape Type: Selects a shape type.
Plane Circle Type
Cylinder Type
Sphere Type
Thickness: Defines the thickness of the geometry for contact.
Diameter: Defines the diameter of the geometry for contact.
TSDA: Defines the property between Case and Plunger as a translational force. For more information, refer to Translational Force.
Figure 36.48 TSDA Property dialog box
Joint Property: Defines the property between Case and Plunger as a translational joint.
Figure 36.49 Joint Empirical Property dialog box
OneWay Force Property
The principal of one way force is as follows.
Figure 36.50 The principal of One Way Force
Group Mechanical AT Ratchet Geometry
![../_images/image06118.png](../_images/image06118.png)
Figure 36.51 Group Tensioner MAT Ratchet property page [Group Mechanical AT Ratchet Geometry page]
Ref Parametric Marker
Case
Outer Diameter
Inner Diameter
Length
Bottom Thickness
Length for bottom
Plunger
Length
Set Length
Use half graphic option
Each Rendering: The selected mode can be displayed in Each Render mode.