﻿P 
  : 
  <\ 
  

  

  Coupled 
  Vibrations 
  : 
  Unequal 
  Masses 
  or 
  Periods. 
  75 
  

  

  7=' 
  

  

  

  

  p 
  

  

  =20 
  

  

  /? 
  = 
  5 
  p-t 
  

  

  

  

  

  

  

  

  

  

  

  

  

  / 
  

  

  

  

  

  

  

  

  

  

  / 
  x- 
  \ 
  

  

  y 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  7»3/ 
  4 
  j 
  

  

  pfl 
  / 
  

  

  

  

  

  

  

  — 
  ' 
  f~ 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  • 
  

  

  

  

  

  

  

  \ 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  10 
  

  

  20 
  

  

  40 
  

  

  30 
  

  

  Coupling. 
  

  

  Fig. 
  2. 
  — 
  Frequency 
  Ratios 
  and 
  Coupling-. 
  

  

  50 
  

  

  60% 
  

  

  