Figure 3.
Time history and Fast Fourier Transform (FFT) of accelerations s1 and s3 for the experimental setup at tightness level 1, subject to excitation torques of (a) 5.6 Nmm, (b) 6.6 Nmm, (c) 7.2 Nmm, (d) 9.2 Nmm, (e) 11 Nmm, and (f) 12.3 Nmm.
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