1. Degree of Freedom (DOF)

Try these first

1. 1.

   What does DOF stand for in mechanical systems?

   Hint

   Think about how you can describe a mechanism's configuration.

2. 2.

   What formula do we use to calculate DOF for planar mechanisms?

   Hint

   It involves links and pairs.

3. 3.

   What does DOF indicate in a mechanical system?

   • The amount of links
   • The configuration independence
   • The energy efficiency

   Hint

   Think about how we define motion.

4. 4.

   Grashof's Rule tells us if a mechanism can fully rotate.

   • True
   • False

   Hint

   Recall the linking conditions.

5. 5.

   Design a mechanism with 5 links and determine its DOF when there are 3 lower pairs and 2 higher pairs.

   Hint

   Input the values carefully into the formula.

6. 6.

   You have a four-bar linkage with link lengths s=2, l=5, p=3, and q=4. Determine if it is a Grashof type and explain why.

   Hint

   Always analyze the inequalities.