3. Motion Diagrams

Try these first

1. 1.

   What does Uniform Velocity mean for a follower?

   Hint

   Think about what uniform implies in everyday language.

2. 2.

   Define Jerk in motion.

   Hint

   Consider how acceleration changes over time.

3. 3.

   What is Uniform Velocity in cam design?

   • Constant speed with abrupt changes
   • Variable speed
   • Constant acceleration

   Hint

   Consider what 'uniform' suggests.

4. 4.

   Cycloidal motion has zero acceleration and jerk at which points?

   • True
   • False

   Hint

   Consider the smoothness of the cycloidal profile.

5. 5.

   Design a cam profile for a mechanical wristwatch that minimizes jerk while maintaining precision. Justify your choice of motion profile.

   Hint

   Consider the accuracy required in timekeeping.

6. 6.

   Analyze the potential effects of using a parabolic motion profile in a robotic arm that requires quick movement and sharp transitions.

   Hint

   Think about how abrupt changes affect the motion's effectiveness.