14.1.1. Types of Vibrations

Try these first

1. 1.

   What is free vibration?

   Hint

   Recall the definition.

2. 2.

   Define forced vibration.

   Hint

   Think about how external events influence structures.

3. 3.

   What type of vibration occurs without external forces?

   • Forced Vibrations
   • Free Vibrations
   • Damped Vibrations

   Hint

   Think about what happens after a structure is disturbed.

4. 4.

   True or False: Damped systems experience energy loss.

   • True
   • False

   Hint

   Recall the distinction between energy dissipation concepts.

5. 5.

   A building experiences both free vibrations after a wind gust. Describe how both types of vibrations might affect the structure over time.

   Hint

   Think of the ongoing movement versus the natural settling.

6. 6.

   Compare the stability of a damped system with that of an undamped system in an earthquake scenario.

   Hint

   Consider how energy dissipation plays a role in stability.