Interaction of a pneumatic punch with the ground

Abstract

and that in the section 0.35 the electrodynamic forces are opposed to the electromagnetic forces, while in the section 0.75 they cooperate; then the useful work done by the electrodynamic forces will be Aed=/~d(0.7--0,3)5 = 0,4 6Fed = 0.4.3.290 = 3.48 l, which is 14% of the total energy of the REM in comparison with the case when Fed --0 over the whole stroke 6.In conclusion, we must remark that on the basis of our investigations we have elucidated the following.