Florian.CHANCEL
Subscriber

Hello, 

I guess the plot you displayed is a result of one node ?

You can have resonance and also anti-resonance. Resonance means a significant increase of the vibration, Anti-resonance is means a significant decrease of the vibration.

An anti-resonance is also an eigen mode.

The damping is only the shape of peaks.

For steel, is 0.1%, but for welded structure it's higher