Page 405 - Thomson, William Tyrrell-Theory of Vibration with Applications-Taylor _ Francis (2010)

Classical Methods Chap. 12
392

Figure 12.5-3.
Figure 12.5-4 shows the results of the computer study in which 6^ is plotted
against co. The natural frequencies of the system correspond to frequencies for which
^4 becomes zero, which are approximately
io, = 160
0)2 = 356
o>3 = 552