- #1
ckuze
- 9
- 0
I have a question about resonance.
According to this graph, http://en.wikipedia.org/wiki/File:Resonance.PNG
When no damping force (the red line), there should be no energy loss due to frictional force or other damping force. So the energy should be fully transferd to the system from the excternal agent.
But I cannot understand why the amplitude of the forces oscillation is not infinity no matter the difference between the natural frequency and the driving frequency exist or not.
According to this graph, http://en.wikipedia.org/wiki/File:Resonance.PNG
When no damping force (the red line), there should be no energy loss due to frictional force or other damping force. So the energy should be fully transferd to the system from the excternal agent.
But I cannot understand why the amplitude of the forces oscillation is not infinity no matter the difference between the natural frequency and the driving frequency exist or not.