Variably Coupled Vibrations. 

 Fte. 1. 



337 



























X y 





















































t 









02 



0-3 



0-4 



0-5 



Table III.— Masses 2 : 3, Periods 4 : 7. 



Coupling 



Length Ratio 



Frequency Ratio 



y. 



a. 



Pfa 



Per cent. 















1-311 



1269 



0-127 



1-338 



18-68 



0176 



1-353 



23-62 



0-225 



1-372 



28-09 



0274 



1-393 



0-6 



0-7 



