RELAY ARMATURE REn(3UND ANALYSIS 



177 



Avliere 



C = Cxi - -^ 



The system returns to rest at 



t 



T (7(1 - Ic) 



(9) 



(10) 



VI. ANALYSIS OF REBOUND PATTERN — TWO-DEGREE-OF-FREEDOM SYSTEM 



The reason for choosing a t\vo-degree-of-freedom system over a one- 

 degree-of -freedom system would be, in keeping with the philosophy of 



DD 0.02 



HEEL HITS FIRST 



^-4 



0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 



NORMALIZED TIME W 



Fig. 4 — Front and heel motion of plate tj'pe armature. 



