MECH 466 - Lecture8-TimeDomainSpecsandSteadyStateError-2009W

MECH 466 Lecture8--2009W

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: blems. Specifications other than stability Specifications How to evaluate a system quantitatively in time domain? How How to give specifications in time domain? How What are the corresponding conditions in s-domain? What s- Transient (natural) response Steady-state (forced) response Steady- (after yt dies out) 2008/09 MECH466 : Automatic Control 3 2008/09 MECH466 : Automatic Control 4 1 Example of transient & steady-state responses Usage of time responses Modeling Modeling Some parameters in the system may be estimated by Some time responses. Analysis Analysis Step response Step Response 3 Transient response Transient Evaluate transient and steady-state responses Evaluate steady(Satisfactory or not?) 2.5 Design Design Steady-state resp. Steadyresp. Amplitude 2 Given design specs in terms of transient and steadyGiven steadystate responses, design controllers satisfying all the design specs. 1.5 1 0.5 0 0 2008/09 2 4 MECH466 : Automatic Control 6 Time (sec) 8 10 Time (sec) 12 5 2008/09 Typical test inputs Step function MECH466 : Automatic Control 6 Typical step response Ramp function (Most popular) Parabolic function Sinusoidal input will be dealt with later. 2008/09 MECH466 : Automatic Cont...
View Full Document

This document was uploaded on 03/05/2014 for the course MECH 466 at The University of British Columbia.

Ask a homework question - tutors are online