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Unformatted text preview: less than 0.01 to a unit ramp input. You may assume that the crossover frequency is related to the rise time by the following expression: c 1.8 t r . The actuator for this system can be modeled as a unit gain up to 8 Hz (50 rad/sec). At frequencies above 8 Hz, the actuator performs poorly and therefore the closed loop bandwidth of the system (and thus the crossover frequency) must be kept below 8 Hz. Calculate the ranges of acceptable crossover frequency, phase margin, and compensator DC gain, D (0), to ensure that the performance criteria are met. crossover frequency range: phase margin: compensator DC gain: (b) Design a compensator D ( s ) to ensure that all of the performance criteria are met. Submit magnitude and phase plots to support you design choices. D ( s ) = (c) Plot the closed-loop step response of the system demonstrating your success in meeting the rise time and percent overshoot criteria....
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This note was uploaded on 03/26/2012 for the course MEEN 431 taught by Professor Timmclainrandybeard during the Fall '10 term at BYU.
- Fall '10