EE 517

Fall Term 2000

**Course Title** Advanced Electromechanics

**Time** Tues. and Thurs. 11:00 - 12:15

**Room** Anderson Hall 253

**Instructor** Arthur V Radun

**Office** Anderson Hall 689

**Phone** 257-4289

**Email** radun@engr.uky.edu

**Office hours** Tues. 4:00-5:00, Weds. 2:00 - 3:00 and Fri. 11:00 - 12:00 or by appointment.

**Text** __Electromechanical Dynamics, Part 1 & part 2,__ Woodson & Melcher, Wiley 1968, (These two parts are

two bound photo copies.)

**GOALS: **This course is designed to introduce the student to the methods of electromechanics. It begins with a review of computing inductance and capacitance using the integral form of Maxwell's equations. Then the energy method for computing the forces of electrical origin is introduced. These forces are then combined with circuit equations and the equations of mechanics to obtain dynamic models of an electromechanical systems. The methodology developed is applied to simple electromechanical structures and then to the synchronous motor and the induction motor. At this point the more advanced concepts of field transformations between moving reference frames and Maxwell stress tensors are introduced. The Maxwell stress tensor and its application to computing forces completes the course.

**Exams** Two exams and a final. Exams will be during scheduled class time in AH253. Final will be during finals week in AH253.

Exam 1 Thurs. Sept. 28, Material covered in class to 9-21-00

Exam 2 Thurs. Oct. 26, Material covered in class to 10-19-00

Final Thurs. Dec. 14,2000 at 1:00 PM, All Material

**Homework** Weekly homework, one design problem. Late homework will not be accepted. Hand in what you have completed. Weekly homework will be checked to see if it is complete. Random problems will be graded in detail. The design problem will be handed out about Nov. 9, 2000 and will be graded in detail.

Do your own homework. You may ask your fellow students and myself questions to clarify how to do the homework but do it yourself. This is the only way to develop problem solving skills.

**Grading** Homework 10%, Design problem 20%, Tests 20% each, Final 30%.

Your grade will be determined by your relative standing in the class. For each component of your grade, homework, exam 1, exam 2, etc. a class standing grade will be generated by adding (89– the class average) to your actual grade for that component to generate a class average grade. Thus if your actual grade for that component is equal to the class average you will have a class standing grade of 89 for that component. A total class standing grade will be generated using the weighting above. A total class standing grade of 90 and above is an A, 80-90 is a B, 70-80 is a C, 60-70 is a D, and below a 60 is a E. Some deviation from the above procedure may occur under unusual circumstances.

Requests to have an exam grading error changed must be made in writing within 14 calendar days of the exam being returned to the class.

OUTCOMES

Upon completion of this course students should demonstrate the ability to:

- Compute the inductance or capacitance of standard structures using the integral form of Maxwell's equations.
- Design a basic inductor.
- Use energy or co-energy to calculate the force of electrical origin for either an inductive or capacitive system.
- Compute the static equilibrium of an electromechanical system and determine its stability.
- Compute mutual and self inductance.
- Draw the basic circuit model of the synchronous and induction motors.
- Apply field transformations for both electric and magnetic systems to the brush DC motor and the homopolar motors.
- Apply the Maxwell stress tensor for both electric and magnetic systems calculate the force on the object in that volume.
- Design a basic electromechanical device.