Equation of motion spring with dampers

[J.A.W.]

Cor blimey lads.. got any software/empirical data on 'hammer & tongs' Newtonian motion-wise, 'ave we then?

Actually its work betwixt hammer & anvil, that be where the sparks 'n' slag - mainly gets sent flyin' - AFAIR..

Seriously though, whatever happened to the O.P.?
Surely he aint inhibited in replying - by a bit of rigourous/robust discourse.. I 'ope not..