Design Animation > Glossary > Glossary for Design Animation
Glossary for Design Animation
You should be familiar with these terms before creating an animation:
The basic component of a mechanism model. A body is a group of parts that are rigidly controlled, with no degrees of freedom within the group.
Degrees of Freedom
The potential motion of a mechanism model. Connections act as constraints on the motion of bodies relative to each other, thus reducing the mechanism's total possible degrees of freedom. Every unconstrained body has six degrees of freedom, three translational and three rotational.
Using the mouse to grab and manually simulate a mechanism's movement.
An associative relationship between animation elements.
A body in a mechanism that does not move. Other bodies move with respect to the ground body.
Key Frame Sequence
A series of snapshots that show the position and orientation of parts or assemblies over a period of time.
Placement Constraint
An entity in an assembly that places a component and that limits the movement of the component in the assembly.
The ability to record and replay the motion of an analysis run.
Predefined Connection Set
Defines which placement constraints are used to place a component in the model and restricts the motion of bodies relative to each other, thus reducing the assembly's total possible degrees of freedom (DOF). Also defines the kind of motion a component can have within the mechanism.
Servo Motor
A servo motor causes a specific type of motion to occur between two bodies in a single degree of freedom
UCS (User Coordinate System)
A coordinate system chosen by the user to act as a frame of reference for the direction of the position, acceleration, or velocity vector.
WCS (World Coordinate System)
A fixed (global) coordinate system that defines the geometric properties of all the components and bodies in an assembly.