MECH466 - Lecture15-FrequencyResponse-2009W

If see the updated schedule for lab 4 see

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Unformatted text preview: ecessary, adjust controller parameters. If See the updated schedule for Lab 4 See MECH466_LabSchedule_0809 (Mar 5).pdf. If your group wants to perform Lab 4 on Tuesday If March 24 (4-6pm, or possibly 6-8pm), please (46contact me ASAP. 2008/09 MECH466 : Automatic Control 11 2008/09 MECH466 : Automatic Control 12 3 Course roadmap Modeling Analysis Laplace transform Transfer function Models for systems • electrical • mechanical • electromechanical Linearization What is frequency response? Design Time response • Transient • Steady state Design specs System Root locus Frequency response • Bode plot Frequency domain PID & Lead-lag Lead- Stability • Routh-Hurwitz Routh• Nyquist Design examples Matlab simulations & laboratories 2008/09 MECH466 : Automatic Control 13 We would like to analyze a system property by We applying a test sinusoidal input r(t) and test r(t) observing a response y(t). y(t). Steady state response yss(t) (after transient dies Steady (t) out) of a system to sinusoidal inputs is called frequency response. frequency 2008/09 A simple example RC circuit RC MECH466 : Automatic Control 14 An example (cont’d) TF (R=C=1) TF R 1 r y 0.8 0.6 0.4 r(t) r(t) C 0.2 y(t) y(t) r(t)=sin(t) r(t)=sin(t) 0 -0.2 -0.4 -0.6 Input a sinusoidal voltage r(t) Input r...
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This document was uploaded on 03/05/2014 for the course MECH 466 at University of British Columbia.

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