5.2.2. Determination

Try these first

1. 1.

   What is a dynamic degree of freedom?

   Hint

   Think about how structures move under loads.

2. 2.

   Name one factor that influences dynamic degrees of freedom.

   Hint

   Consider how buildings are held up.

3. 3.

   What does a dynamic degree of freedom represent?

   • Independent coordinates for motion
   • Structural weight
   • Support locations

   Hint

   Think about how we define motion in engineering.

4. 4.

   True or False: Constraints always increase the number of dynamic degrees of freedom.

   • True
   • False

   Hint

   Consider what constrains movement in a structure.

5. 5.

   Consider a simple structure with three floors. Identify how many dynamic degrees of freedom it might have, taking into account the roles of constraints and supports.

   Hint

   Think about how supports limit movement.

6. 6.

   Design a small structure and outline the steps you would take to determine its dynamic degrees of freedom.

   Hint

   Consider both vertical and horizontal movements.