Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Damping in Duffing driven-anharmonic oscillator

  1. Feb 18, 2009 #1
    Greeting every one.
    In Duffing equation, the damping coeffecient usually assume possitive values (<<1). However, at certain cases, the damping coeffecient may asume negative values.
    Can any one explain the meaning of positive and negative damping in Duffing equation as well as in real physical systems.
    Further, in modelling the nonlinear response of a nonlinear material driven by optical laser source using Duffing equation, what type of damping we have in this case.
    any contribution is appreciated.
     
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted