Bronson — Transverse Vibrations of Helical Springs. 67 



The length-frequency curve for spring ±a differs from the 

 others thus far studied in that the frequency has passed beyond 

 the maximum point. If the frequency of the vibrations of the 

 springs, when stretched beyond the elastic limit, obeys the same 

 law as before, then along the flat maximum of the curve where 



n is nearly constant, the ratio of T to L ought also to be nearly 

 constant. An examination of fig. 6 gives the following values 



a t 



for n and T f° r a ^ ew values of L along this part of the curve. 



L. 



34 

 36 

 38 

 40 

 42 

 44 



Table YII 



From Fig. 6 



n. 



23-81 



23-88 



24-02 



24-02 



24-01 



23-88 



_T_ 

 L 

 8*26 

 8-36 

 8-34 

 8-32 

 8-29 

 8-22 



