1) A system has an open loop transfer function G(s) = 2.5(1+0.55 +0.25s?) (1+2s)(1+0.25s) Construct the system Bode ampl

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1 A System Has An Open Loop Transfer Function G S 2 5 1 0 55 0 25s 1 2s 1 0 25s Construct The System Bode Ampl 1 (85.62 KiB) Viewed 36 times

1) A system has an open loop transfer function G(s) = 2.5(1+0.55 +0.25s?) (1+2s)(1+0.25s) Construct the system Bode amplitude and phase plots using asymptotic (straight line ) approximations 2) Shown in the table are the data from an open-loop frequency response test on some plant. Estimate the transfer function of the plant. Amplitude ratio (dB) 14 13 Frequency Rad/s 1.0 2.2 4.6 10 21 46 100 215 464 1000 11 6 -2 -13 -26 -39 -53 -66 Phase shift degrees -14 -29 -55 -90 -124 -150 -165 -173 -176 -178 3) In a test on a servomechanism, the following open loop response data were obtained: 0.05 0.1 0.3 0.5 1 2 3 5 10 20 Frequency rad/s Gain (dB) 36 30 21 17 10 0 -8 -20 -39 -57 94 98 110 120 145 186 208 230 250 Phase lag (degrees) 260 Plot the frequency response plots as: a) Bode amplitude and phase plots and b) A Nyquist diagram