The curve to surface joint provides five degrees of freedom: three rotational at the
instantaneous point of contact and two translational DOF.
In order to completely specify a curve to
surface joint, the following entities must first be created:
- 3D reference curve.
- A 3D reference surface.
- A marker that belongs to Body 1 of the joint and is located appropriately so
that the curve entity can be meaningfully described as belonging to the
coordinate system of the reference marker.
- A marker that belongs to Body 2 of the joint and is located appropriately so
that the surface entity can be meaningfully described as belonging to the
coordinate system of the reference marker.
-
If the Advanced Joint panel is not currently displayed, select the desired
advanced joint by clicking on it in the Project Browser
or in the modeling window.
The Advanced Joint panel is automatically displayed.
-
Click the Ref Marker 1 collector and select the surface
reference marker that belongs to Body 1 from the modeling window, or double-click the collector to open the
Model Tree (from which the desired marker can be
selected).
-
Click the Ref Marker 2 collector and select the surface
reference marker that belongs to Body 2 from the modeling window or the Model Tree.
The Body collectors are automatically updated.
-
Click the Curve collector and select the curve of origin
for the joint and the marker on Body 1 (which is constrained to the curve on
Body 1).
-
Click the Surface collector and select the surface of
origin for the joint and the marker on Body 2 (which is constrained to the
surface on Body 2).
-
Click the Initial Conditions tab.
-
Activate the User Initial Condition
Marker check boxes and select the desired markers using the
Marker collectors.
The default initial condition markers for the curve/surface are the reference
markers that are specified in the Connectivity tab.
-
Activate the Use XYZ check boxes
and enter the initial position values into the X, Y, and Z fields to specify an
initial position for the curve/surface.
Note: These values will supersede those specified by the Curve and Surface
collectors in the Connectivity tab.