Motion Studies Flashcards

What is the primary advantage of using 'Path Mate' in a Motion Study over manually keying positions along a curve?

Answer: It constrains a component to follow a sketch curve, simplifying motion definition along complex paths

A Path Mate forces the component's reference point to stay on a defined sketch path, making curved-path animation straightforward without manually setting many key points.

In Motion Analysis, which term describes the number of independent coordinates required to fully define the position of all bodies in the mechanism?

Answer: Degrees of Freedom (DOF)

Degrees of Freedom (DOF) counts the minimum number of independent variables needed to describe the complete configuration of the mechanism.

When setting up an 'Oscillating' linear motor in Motion Analysis using a data function, which input type would produce reciprocating motion?

Answer: Sine/Cosine expression

A sine or cosine displacement function causes the motor to move back and forth symmetrically, producing oscillating reciprocating motion.

How do you prevent a component from participating in Motion Analysis dynamics while keeping it visible in the assembly?

Answer: Fix it to ground using a Fixed constraint or a fully-defined Ground mate set in the study

Applying a Fixed (ground) constraint in the Motion Study makes the component immovable for the solver while leaving it visible.

What does the 'Trace Path' tool in a Motion Study output?

Answer: A 3D sketch curve tracing the path of a selected point during the simulation

Trace Path generates a 3D sketch in the assembly that follows the trajectory of a chosen reference point throughout the motion study.

Which statement correctly describes 'redundant constraints' in a Motion Analysis study?

Answer: They occur when more mates than necessary restrict the same DOF, potentially causing solver warnings or inaccurate force results

Redundant constraints over-constrain the mechanism; the solver may still run but joint force results can be unreliable because force is shared ambiguously among redundant constraints.

When you change the 'Frame Rate' in the Motion Study Properties, what is the primary effect on a saved animation output?

Answer: It determines the number of frames captured per second in the exported video, affecting playback smoothness

Frame rate sets how many frames per second are written to the exported video file, directly affecting the visual smoothness of playback.