11.8.2. Contact Dynamics

Try these first

1. 1.

   What is a normal force?

   Hint

   Think about how a surface pushes against an object.

2. 2.

   Name one application of contact dynamics.

   Hint

   Consider where robots would physically touch objects or surfaces.

3. 3.

   What type of force prevents a robot from penetrating a surface?

   • Tangential Force
   • Normal Force
   • Impact Force

   Hint

   It's the force that keeps things upright.

4. 4.

   True or False: Tangential forces can cause a robot to slip.

   • True
   • False

   Hint

   Think about sliding a book across a table.

5. 5.

   Calculate the normal and tangential forces acting on a robot when it is traversing a slope of 30 degrees with a weight of 50 kg.

   Hint

   Use sin and cos functions to break down the forces.

6. 6.

   Model a scenario where a robot picks up a fragile object. Discuss how to employ contact dynamics in design.

   Hint

   Consider how much pressure is too much?