A joint is used to constrain the relative motion of a pair of rigid bodies by physically connecting them.
A
rigid body acts and moves as a single unit. SolidWorks
components automatically become rigid bodies in COSMOSMotion.
The following table shows the joints supported by COSMOSMotion with the translational and rotational degrees of freedom that they constrain.
|
Joint: |
Translational DOF: |
Rotational DOF: |
Total DOF |
|
3 |
2 |
5 | |
|
2 |
3 |
5 | |
|
2 |
2 |
4 | |
|
3 |
0 |
3 | |
|
3 |
1 |
4 | |
|
.5 |
.5 |
1 | |
|
1 |
2 |
3 | |
|
3 |
3 |
6 |
Because a screw joint constrains one degree of
freedom by relating a translation to a rotation, we divide the one degree
of freedom between translation and rotation.