Of motion m r2 x cx kx 0 j kx 0 m

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Unformatted text preview: ncy is: r$ From examining the equation of motion the natural frequency is: !n = k = meq k !n = k = meq k m+ J r2 J m+ 2 An add hoc way do to this is to add the damping force to get the dampe r An add hoc way do to this is to add the dof motion: ce to get the damped equation amping for J# ! of motion: ˙˙ ˙ " m + r2 $ x + cx + kx = 0 J# ! ˙˙ ˙ + kx = 0 " m + r2 $ x + cx The value of ζ is determined by examining the velocity term: The value of ζ is determined by examining the velocity term:c c m+ J r2 = 2!" n # ! = #! = c m+ J 2 r2 c k m+ J r2 J r2 #! = c m+ J 2 r2 J' $ 2...
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