454 



KENNELLY, TAYLOR— PROPERTIES OF 



with the impressed force at the doubly resonant frequency ; but is 

 less than it would be in the absence of the secondary system, in the 

 ratio r/(r -j-Tn). Moreover, at all other frequencies, the resulting 



Constant's assi^m&al in 

 ccmputah'or? of graphs: 



f = 3000 /v 



m = Z.5 7JU~ ^.O 



r = 800 n = 300 



S =50x10^ I = SOx/O' 



Telephone D/aphpaom 



AB50f?PT(0N 



Graphs computed for Consonance 



1 z 3 4- 



Vetocif-y cm/jec 



Fig. 20. Computed Distorted Velocity Circle. 



velocity Xa is less than the normal velocity. The secondary velocity 

 Xo is greatest at the doubly-resonant frequency, and falls oft rapidly 

 as this frequency is departed from on either side. 



Fig. 20 gives the computed graphs for a particular case, where 

 ABCDH is the normal-velocity circle x,n, in heavy line, and ahcdh 



