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KCIDE A Major Research Project with NASA-Glenn

KCIDE A Major Research Project with NASA-Glenn. KCIDE. A Knowledge Capturing Integrated Design Environment. A Knowledge Capturing Design Environment for a Course in Electrical Circuits. KCIDE for Electrical Circuits. A platform that runs on top of Windows

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KCIDE A Major Research Project with NASA-Glenn

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  1. KCIDE A Major Research Project with NASA-Glenn

  2. KCIDE A Knowledge Capturing Integrated Design Environment

  3. A Knowledge Capturing Design Environment for a Course in Electrical Circuits

  4. KCIDE for Electrical Circuits • A platform that runs on top of Windows • Integrates PSpice, MATLAB, Excel, Word, and PowerPoint • Captures knowledge

  5. Based on the Systems Approach to Problem Solving • The six step process as presented in Alexander and Sadiku

  6. Six Steps • Define • Present • Alternate Solutions

  7. Six Steps • Attempt • Evaluate • Rework/Export

  8. Electric Circuits IDE Problem Name: Example 03-02 Date: 6/9/2005

  9. Problem Statement We are to determine the node voltages in the following circuit. In addition, we are to find them using nodal analysis.

  10. Define

  11. Your Analysis on the Problem We are to solve for the node voltages in the circuit using nodal analysis. We label the voltages as v1 representing the unknown node voltage at the top of the current source. The unknown node voltage between the 2-ohm and 8-ohm resistors we will label as v2. The unknown node voltage at the top of the dependent source we will label as v3. Please note that the number of nodes represent all the nodes excluding the reference node.

  12. Number of Nodes in the circuit are 3 Number of Loops in the loops are 3 Let Node Voltage at Node 1 be v1 V Let Node Voltage at Node 2 be v2 V Let Node Voltage at Node 3 be v3 V Let Loop Current in Loop 1 be i1 A Let Loop Current in Loop 2 be i2 A Let Loop Current in Loop 3 be i3 A Present

  13. ALTERNATE SOLUTIONS The Methods Selected for Solving the Problem are: Ohms Law Nodal Analysis(KCL) The Reasons for Selecting the Methods are: Stated in problem definition

  14. Attempt Intermediate steps: 0.75*v1-0.5*v2-0.25*v3=3 -0.5*v1+0.875*v2-0.125*v3=0 0.75*v1-1.125*v2+0.375*v3=0 We could have also included any comments here that could show how we get the above equations.

  15. ATTEMPT-II Final Answers: v1 = 4.8 v2 = 2.4 v3 = -2.4

  16. Evaluate

  17. Comments We have successfully completed the assignment. The answers obtained from two different approaches agree. We should also go back to the circuit and see if the answers make sense. If they do not, my suggestion would be to try to solve for the loop currents by using mesh analysis and then solve for the node voltages using the loop currents. Another approach would be to use the node voltages to determine the branch currents and see if the satisfy Kirchhoff's current law. Looking at the original circuit, the answers do make sense.

  18. KCIDE for Circuits How to download the KCIDE for Circuits software from the web site: http://kcide.fennresearch.org IT IS FREE!!!!!!!

  19. The Website: http://kcide.fennresearch.org

  20. http://kcide.fennresearch.org/downloads.htm Click Here

  21. Click Here

  22. Fill out the form and click Submit

  23. After a short while, you will receive an email with download instructions. Click on the link to complete the go to finish the downloads process.

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