1.18.2. Active and Semi-Active Control

Try these first

1. 1.

   Define active control systems.

   Hint

   Think about how forces are applied.

2. 2.

   What is the main characteristic of semi-active control systems?

   Hint

   Consider the response to feedback.

3. 3.

   What is the primary function of active control systems?

   • To passively absorb vibrations
   • To actively apply forces based on real-time data
   • To stabilize structures without any input

   Hint

   Consider how these systems interact with external forces.

4. 4.

   True or False: Semi-active control systems can apply forces to stabilize structures.

   • True
   • False

   Hint

   Think about the key difference between active and semi-active.

5. 5.

   Design a scenario incorporating both active and semi-active systems in a new skyscraper. Explain how each system would function in response to varying seismic activity levels.

   Hint

   Think about different levels of response needed for different seismic events.

6. 6.

   Assess the limitations of both active and semi-active control systems in urban environments. Discuss how these limitations could impact structural design choices.

   Hint

   Consider urban challenges like space, maintenance, and power supply.