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Please Post This Question S Answer Don T Post The Wrong Answer To Other Questions There Is Some Wrong Answer In Chegg 1 (19.57 KiB) Viewed 34 times
Spring- M Seismic mass B Input motion 4 Object in motion Figure 1 seismic instrument Output transducer Damper
1. (20 points) A seismic instrument like the one shown in Figure 1 is to be used to measure a periodic vibration having an amplitude of 0.5 cm and a frequency of 128 rad/s. (a) Specify an appropriate combination of natural frequency and damping ratio such that the dynamic error in the output is less than 3%. (b) What spring constant and damping coefficient would yield these values of natural frequency and damping ratio? (c) Determine the phase lag for the output signal. Would the phase lag change if the input frequency were changed?
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