Constraint Mates
Constraint mates offer higher pair constraints in the form of distance, coincidence and tangency between two analytical geometries. The geometries could be point, line, sphere, cylinder, cone or a plane. The geometry is defined analytically using bodies and points.
Certain type of constraints may not be applicable based on the geometry involved.
Point
- Click the Body collector and select the body constrained by the constraint mate.
- Click the Point collector and select the point on the body to be constrained.
Sphere
- Click the Body collector and select the body constrained by the constraint mate.
- Click the Point collector and select the sphere center.
- Enter a value for the radius of the sphere.
Line
Cylinder
Plane
Cone
MotionSolve Keywords
The table below summarizes the various combinations of geometry choices along with the keyword TYPE that is written to the Contraint_Mate statement for MotionSolve:
Constraint Type | Geometry 1 | Geometry 2 | MotionSolve keyword (TYPE) |
---|---|---|---|
Distance | Point | Point | DIS_POI_POI |
Sphere | DIS_POI_SPH | ||
Line | DIS_POI_LIN | ||
Cylinder | DIS_POI_CYL | ||
Sphere | Sphere | DIS_SPH_SPH | |
Line | DIS_SPH_LIN | ||
Cylinder | DIS_SPH_CYL | ||
Cone | DIS_SPH_CON | ||
Plane | DIS_SPH_PLA | ||
Line | Line | DIS_LIN_LIN | |
Cylinder | DIS_LIN_CYL | ||
Plane | DIS_LIN_PLA | ||
Cylinder | Cylinder | DIS_CYL_CYL | |
Plane | Cone | DIS_PLA_CON | |
Cylinder | DIS_PLA_CYL | ||
Coincident | Point | Cylinder | COI_POI_CYL |
Sphere | COI_POI_SPH | ||
Point | COI_POI_POI | ||
Line | COI_POI_LIN | ||
Cone | COI_POI_CON | ||
Line | Cylinder | COI_LIN_CYL | |
Plane | COI_LIN_PLA | ||
Line | COI_LIN_LIN | ||
Tangent | Sphere | Line | TAN_SPH_LIN |
Cylinder | TAN_SPH_CYL | ||
Plane | TAN_SPH_PLA | ||
Cone | TAN_SPH_CON | ||
Sphere | TAN_SPH_SPH | ||
Line | Cylinder | TAN_LIN_CYL | |
Cylinder | Cylinder | TAN_CYL_CYL | |
Plane | Cylinder | TAN_PLA_CYL | |
Cone | TAN_PLA_CON |