SP3. Mechanic Rotational System with damper 6 Damper T-co=J0、o de T(input torque) dt dt C· d de C dt T(S) A(s) Js+cSP3. Mechanic Rotational System with Damper   c Damper dt d dt d T c J    −  = , = T dt d c dt d J + =   2 2 Js + cs 2 T(s) 1  (s) T (input torque)