Difference between revisions of "Controls/Spring 2025/Test 2"

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(Similar to Test 2's from 2007-2010 and Test 1's from 2011-2012)
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* Translate a block diagram into a signal flow graph.
 
* Translate a block diagram into a signal flow graph.
 
* Determine the transfer function of a signal flow graph.
 
* Determine the transfer function of a signal flow graph.
* Generate a Routh array for a transfer function and determine regions of stability.  Be sure to know how to handle rows with all zeros and rows with leading zeros.
+
* Generate and interpret a Routh array for a transfer function to determine regions of stability.  Be sure to know how to handle rows with all zeros and rows with leading zeros.
 
* Find the value of one or more free parameters to obtain marginal stability and the frequency of oscillation for marginal stability.
 
* Find the value of one or more free parameters to obtain marginal stability and the frequency of oscillation for marginal stability.
 +
* Note: steady-state error was on different tests in these semesters but will be on Test 2 for Spring 2025
  
 
=== Similar to Test 2's from 2011-2012 ===
 
=== Similar to Test 2's from 2011-2012 ===

Revision as of 18:15, 16 March 2025

Post questions or requests for clarification to the discussion page.

Previous Tests

Previous ECE 382 and Controls tests are available at Dr. G's Big Box of Random. The equation sheet will be the same as the last page of the Fall 2024 Test 2.


Test 2 Coverage

This test comes primarily from Chapters 1-7, excepting Chapter 3. Material from Homework 1-7 will be covered. The focus will be on Chapters 4-7.

Similar to Test 2's from 2007-2010 and Test 1's from 2011-2012

  • Determine characteristics of the step response for a first-order system or design a system to achieve those characteristics. Specifically, rise time and settling time.
  • Determine the characteristics of the step response for a second-order system or design a system to achieve those characteristics. Specifically for a second-order underdamped system: rise time, peak time, %OS, settling time, damping, natural frequency, and damped frequency.
  • Know when extra poles and zeros interfere with the assumptions of a dominant pair of poles.
  • Translate a block diagram into a signal flow graph.
  • Determine the transfer function of a signal flow graph.
  • Generate and interpret a Routh array for a transfer function to determine regions of stability. Be sure to know how to handle rows with all zeros and rows with leading zeros.
  • Find the value of one or more free parameters to obtain marginal stability and the frequency of oscillation for marginal stability.
  • Note: steady-state error was on different tests in these semesters but will be on Test 2 for Spring 2025

Similar to Test 2's from 2011-2012

  • Determine system type for a unity feedback system and for a general system.
  • Determine steady state error for step, ramp, parabolic inputs
  • Determine steady state error due to disturbances

Specifically Not On The Test

  • Root Locus
  • Differential equations using "classical" methods
  • Maple
  • MATLAB
  • State Space