To start out the investigation of the mass–spring–damper suppose the damping is negligible and that there's no exterior power placed on the mass (i.e. absolutely free vibration). The force placed on the mass by the spring is proportional for the amount the spring is stretched "x" (assuming the spring is https://vibrationisolatorforfans47913.blogstival.com/51156121/vibration-isolation-and-transmissibility-for-dummies