Mechanic movement System with Spring Mass- Damper r-kv-b dy dy drx +kv=r dt R(S) Y(S ms+bstkMechanic Movement System with Spring – Mass – Damper 2 2 dt d y m dt dy r − k y−b = k y r dt dy b dt d y m + + = 2 2 ms + bs + k 2 1 R(s) Y(s)