The basic parameters of CAD link are same to the basic parameters of Track Link provided in RecurDyn/Track_LM. But, the user should construct a side contact between the CAD sprocket or CAD flanges and the CAD link. The following steps explain how to create a user-defined CAD link.
Figure 1 CAD Link icon of the Link group in the Track(LM) tab
Terminology
The following figure explains parameters of CAD Link. The user should know the parameter’s value for setting in RecurDyn.
Figure 2 The user defined CAD Link geometry
•Rp : Pin radius
•LP : Pin length
•Wi : Track link inner width
•Wo : Track link outer width
•Ll : Track link left length
•Lr : Track link right length
•H : Track link height
•Rlp : Left pin position
•Rrp : Right pin position
•Wg : Grouser width
Step to Create a CAD Link
1. Import or create a user-defined CAD link geometry.
2. Click the CAD Link icon of the Link group in the Track (LM) tab.
•Solid: Selects a desired solid body. (The geometry reference frame of the desired solid must be on the Inertia Marker. For more information, refer to Preparing for CAD Track Entity)
•Point: Selects a point where the CAD Link is created.
•WithDialog: Inputs user’s CAD link information (Geometry, Grouser Profile). Refer to Track Link.
•Geometry Data: Inputs track link’s geometry information.
Figure 3 CAD Link property page [Geometry Data page]
•Use User-defined Bushing Position: If it is checked, Bushing force can be defined on different position with pin position.
•Left Bushing Position: Defines a base marker position of Bushing force
•Right Bushing Position: Defines an action marker position of Bushing force
•Bushing Width: Defines a width between two bushing forces.
Figure 3.1 Dimension information of user-defined bushing position
•Grouser Profile: Inputs Track Link’s Grouser Profile information. The user can input the own grouser profile data or the user can input the grouser profile data by Add From Geometry function.
Figure 4 CAD Link property page [Grouser Profile page]
3. Define Shoe Point of Grouser for contact between grouser and ground.
4. Define a contact surface for the side contact with other Track Flange entities after creating the CAD Link.
① Enter in Clone Body Edit mode.
② Create surfaces by using Face Surface. The user can also use other generating surface tools (importing a surface geometry etc…).
③ Define the contact surfaces in Side Contact page. For more information, refer to Contact page of Contact.
④ Define contact characteristic of the Side Contact. For more information, refer to Characteristic page of Contact.