tingyuau Messages 1 Reaction score 0 Thread starter Sep 27, 2012 #1 Can someone derive for me the equation ωd=ωnsqrt(1-ζ2) Thanks
nasu Homework Helper Messages 4,474 Reaction score 923 Sep 27, 2012 #2 Yes. http://en.wikipedia.org/wiki/Harmonic_oscillator#Damped_harmonic_oscillator