Page 164 - Thomson, William Tyrrell-Theory of Vibration with Applications-Taylor _ Francis (2010)

Sec. 5.6 Vibration Absorber 151

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Figure 5.6-1.
Vibration ab­
sorber.
that /c2/^ i = jLi(ia22/iaii)^. Because the system is one of 2 DOF, two natural
frequencies exist. These are shown against /x in Fig. 5.6-3.
So far nothing has been said about the size of the absorber mass. At
0) = 0)22, amplitude = 0, but the absorber mass has an amplitude equal to

^2 = (5.6-2)

Figure 5.6-3. Natural frequencies
vs. fji vs. m2 / m j.