lecture_21

lecture_21 - 11:03:06 AM %============================= %...

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ME 421 Mechanical Dynamics and Control Fall 2006, Lecture 21 Today’s topics Review: Transient response characteristics—from controls perspective; Proportional control (Sec. 10-6); Root-locus (Sec. 10-8, 10-9);
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Concept of Feedback Control
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Concept of Feedback Control
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Block-diagram representation
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Block-diagram representation: Example
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Review: Transient-Response Characteristics
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Simplest Feedback Control: Proportional Control
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I:\CourseWork\ME421_Fall06\Lecture\L_21_Exmp.m Page 1 October 31, 2006
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Unformatted text preview: 11:03:06 AM %============================= % ME 421---Fall 2006 % Examples for Lecture 21; %============================= z = -5; k_dc = 8; xi = 0.1; omega_n = 10; My_TF = tf([k_dc k_dc*z], [1 2*xi*omega_n omega_n^2]); Kp = .5; % 0.5, 1.2, 1.4, 5.5; My_Con = tf(Kp, [1]); My_Gcl = feedback(My_Con*My_TF,1); % The default is negative feedback; figure(3), step(My_TF), hold on, step(My_Gcl,'g.'); %figure(2), step(My_Gcl); %figure(3), rlocus(My_TF)...
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This document was uploaded on 03/23/2010.

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lecture_21 - 11:03:06 AM %============================= %...

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