An actuator for a disk drive uses a shock mount to absorb vibrational energy at approximately 60 Hz 14 The Bode diagram of G( (s)G(s) of the control system is shown in Figure E9 18 (a) Find the expected percent overshoot for a step input for the closed loop (a) Plot the Bode diagram and (b) determine the gain K required to obtain a phase margin of 30 deg What is system, (b) estimate the bandwidth of the closed loop system, and (c) estimate the settling time (with a 2 criterion) of the system X 486 93 Trans i Y 4 5924 Y 0 0 R 3 A 100 Expand 40 000 GMAG DB 10 000I 486 Hz 600 00 Gan crossover 40,000 LG HZ X 486 93 Trans l Y 36 215 Y 0 0 R 3 A 100 Expand 180 00 36 2 Phase margin Phase margin at crossover 40 000 LG HZ 486 Hz 600 00

Question: An actuator for a disk drive uses a shock mount to absorb vibrational energy at approximately 60 Hz [14]. The Bode diagram of G(.(s)G(s) of

An actuator for a disk drive uses a shock mount to absorb vibrational energy at approximately 60 Hz [14]. The Bode diagram of G(.(s)G(s) of the control system is shown in Figure E9.18. (a) Find the expected percent overshoot for a step input for the closed-loop
(a) Plot the Bode diagram and (b) determine the gain] K required to obtain a phase margin of 30°. What is

system, (b) estimate the bandwidth of the closed-loop system, and (c) estimate the settling time (with a 2% criterion) of the system.

X: 486.93 Trans i Y:-4.5924 Y: 0.0 R#:3 #A: 100 Expand 40.000 GMAG DB 10.000I 486 Hz 600.00 Gan crossover 40,000 LG HZ X: 486.93 Trans l Y: 36.215 Y: 0.0 R#:3 #A:100 Expand 180.00 36.2 Phase margin Phase margin at crossover 40.000 LG HZ 486 Hz 600.00

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