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Critical Damping in Multi-Modal Resonant System

  1. Sep 26, 2009 #1
    Let's say I have a system with multiple oscillatory modes. Is it possible to have anything in this system that resembles critical damping?
     
  2. jcsd
  3. Sep 26, 2009 #2
    If you had two separate series resonant circuits in parallel, each resonant circuit could be separately critically damped. Give me some numbers and I will run a SPICE analysis.
    Bob S
     
  4. Sep 26, 2009 #3
    If they are in parallel, would they still be coupled? I'm great with circuits. I'm picturing some kind of physics system like a chain of masses and springs.
     
  5. Sep 27, 2009 #4
    Its an excellent question - supposing you had 2 masses coupled together in series by a spring and a damper - could you look for cases where the system has only one eigenvalue repeated 4 times ?

    Even if you could get that situation, to be honest I'm not sure if it would even represent multimodal critical damping ...

    Regards,
    Thrillhouse
     
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