4. Crank-Rocker Mechanisms

Try these first

1. 1.

   What is the function of a crank in a crank-rocker mechanism?

   Hint

   Remember that it completes a full rotation.

2. 2.

   Define the rocker in the context of crank-rocker mechanisms.

   Hint

   Think about its oscillating motion.

3. 3.

   What is the primary function of a crank in a crank-rocker mechanism?

   • To rotate fully
   • To rock back and forth
   • To connect other links

   Hint

   Think about what gives the mechanism its motion.

4. 4.

   True or False: Crank-rocker mechanisms only produce linear motion.

   • True
   • False

   Hint

   Consider the action of the rocker.

5. 5.

   Create a crank-rocker mechanism that ensures a point moves through three specified positions. Describe your graphical synthesis process.

   Hint

   Focus on accuracy in your drawings to achieve desired positions.

6. 6.

   Consider the limitations of a crank-rocker mechanism. How would these limitations affect the design process in a real-world application?

   Hint

   Think about whether the mechanism is designed for high-speed applications.