The track chain system consists of the track links and connecting bushings. There are two types of bushings.
An inner pin track link is a kind of inside contact type link. When two adjacent track links are connected by the inner pin track link, the pin connector element has very small mass and mass moment of inertia, compared to those of the track links. Therefore, the dynamic effects of connector element are negligible. Therefore, the connector is modeled as a compliant element to reduce the number of degrees of freedom. The geometric information of the inner pin track link is used for both display and contact force computation in the solver.
(a) Inner pin track link (Track link (I)) geometric entity
|
Ll |
Link Body Left Length |
|
Lr |
Link Body Right Length |
|
Hu |
Link Body Upper Height |
|
Hb |
Link Body Lower Height |
|
Lp |
Pin Length |
|
Wb |
Link Body Width |
|
Wcnti |
Link Body Contact Inner Width |
|
Wcnto |
Link Body Contact Outer Width |
|
Rlp |
Left Pin Position |
|
Rrp |
Right Pin Position |
|
Rp |
Pin Radius |
|
Rc |
Centerguide Position |
|
Lc |
Centerguide Length |
|
Tc |
Centerguide Thickness |
|
Le |
End Connector Length |
|
Plcnt |
Left Contact Cylinder Position |
|
Prcnt |
Right Contact Cylinder Position |
|
Rcnt |
Contact Radius |
|
Rs |
Shoe Radius |
(b) Dimension information
Figure 1 Inner Pin Track Link