Is there anything describing a spring's motion when e.g pulled and released, or pushed and released, with no mass-body attached to the spring. I.e not your usual "mass motion on a spring"-equation.
I'm looking for a description of a spring in motion that doesn't deal with any external inertia or force. Intuitively the motion is non-harmonic and the spring just quickly contract or extract back to ground state and briefly vibrate frenetically. Does is exist a deterministic description of this motion?