16.6.2. Non-Classical Damping

Try these first

1. 1.

   What is classical damping?

   Hint

   Think about the relationships between mass, stiffness, and damping in simpler systems.

2. 2.

   Can non-classical damping be ignored in structural analysis?

   Hint

   Consider the implications of ignoring damping in a system during dynamic loads.

3. 3.

   What characterizes non-classical damping?

   • It is proportional to mass and stiffness.
   • It complicates modal decoupling.
   • It can be ignored in dynamic analysis.

   Hint

   Remember the differences between classical and non-classical damping.

4. 4.

   True or False: Non-classical damping allows for easy modal decoupling.

   • True
   • False

   Hint

   Think about what happens when you cannot treat modes independently.

5. 5.

   A high-rise building has been observed during an earthquake to experience coupled motion effects that result in non-classical damping. Propose a method of analysis suitable for this scenario.

   Hint

   Reflect on numerical techniques you studied for complex structures.

6. 6.

   In a bridge subject to wind loads, non-classical damping effects are causing unexpected vibrations. Discuss a step-by-step approach to model and analyze this system.

   Hint

   Think of the iterative process of modeling in engineering.