The damping factor, c/cc, may be determined experimentally by measuring the successive amplitudes of vibrating motion of a system. If two of these maximum displacements can be approximated by x1 and x2, as shown in Fig. 22-16, show that In (x1/x2) = 2Π (c/cc)/
The quantity In (x1/x2) is called the logarithmic decrement.
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