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SolSec7.4 - Problems and Solutions for Section...

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Problems and Solutions for Section 7.4 (7.10-7.19) 7.10 Consider the magnitude plot of Figure P7.10. How many natural frequencies does this system have, and what are their approximate values? 0 10 4 10 3 10 2 10 1 10 0 10 20 30 40 Magnitude 50 (Hz) Magnitude 0.01 0.1 20 40 60 80 (Hz) 1 Solution: The system looks to have 8 modes with approximate natural frequencies of 2, 4, 10, 15, 22, 29, 36, and 47 Hz.
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