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     MAE/ECE 535 Design of Electromechanical Systems
 

A practical introduction to electromechanical systems with emphasis on modeling, analysis, design, and control techniques. Provides theory and practical tools for the design of electric machines (standard motors, linear actuators, magnetic bearings, etc). Involves some self-directed laboratory work and culuminates in an industrial design project. Topics include Maxwell's equations, electromechanical energy conversion, finite element analysis, design and control techniques. 3 credit hours

FAQ: How can individual distance students participate in "hands-on" demonstrations and design projects?

Answer: Quite easily. Any student with access to wire, batteries, magnets, a kitchen table, and a video camera can participate effectively in experimental demonstration projects. Of course, students with access to digital multimeters, oscilloscopes, function generators and similar technologies are encouraged to use them. The final design project utilizes computational tools (MATLAB, Simulink, FEMM, etc.) that are readily available to all students through NCSU's Virtual Computing Lab (VCM).

 
     

Prerequisite
 

Undergraduate courses in physics and differential equations or consent of instructor.

 

Course Objectives   The primary course objective is to provide students with modeling and analysis tools that can be used to design and control electrical machines (standard motors, linear actuators, magnetic bearings, railguns, etc). Students completing this course will:
  • Understand the fundamentals of electromagnetism (Maxwell's equations) and apply them to standard problems
  • Understand magnetic circuit analysis and use it to predict the electromagnetic characteristics of common systems
  • Understand finite element analysis for electromagnetic systems and use it to predict magnetic fluxes, forces, and torques in electric machine models
  • Understand the fundamentals of permanent magnetism and be able to specify permanent magnet materials for specific applications
  • Understand the principles of electromechanical energy conversion and use these principles to predict forces and torques in electric machine models
  • Be able to develop nonlinear dynamic models of electric machines, simulate these systems using Matlab and Simulink, and analyze their performance and response characteristics
  • Understand the fundamentals (machine topology, etc.) and basic operating characteristics (torque, speed, efficiency, etc.) of common electrical machines (induction motors, synchronous motors, DC motors, etc.)
  • Be able to design, model, and simulate common (standard motors, etc.) and unique (railguns, active magnetic bearings, etc.) electric machines

 

Textbook  

Buckner, G.D., Course Notes: MAE/ECE 535 Design of Electromechanical Systems. Available at the NCSU Bookstore.

 

Reference Texts (Not Required)  

Lonngren, K.E. and Savov, S.V., Fundamentals of Electromagnetics with MATLAB, Second Edition, SciTech, 2007.

Fitzgerald, A.E., C. Kingsley, and S.D. Ulmans, Electric Machinery, Sixth Edition, McGraw-Hill, 2003.


Course Requirements  

HOMEWORK: 20% of final grade.

EXAMINATIONS: A mid term exam (20%) and a final exam (30%).

SOFTWARE REQUIREMENTS: MATLAB®, Simulink, FEMM

PROJECTS: This course culminates in an industry-sponsored design project. Recently, five groups of students (4 students per group) worked with Magnequench (an RTP manufacturer of rare-earth magnets) to improve an existing DC motor design. The motor was taken from Mercedes-Benz fuel pump, and the objective was to predict the performance benefits (and costs) associated with replacing ferrite magnets with rare-earth magnets. For this project, students used basic design techniques, Finite Element Analysis, and experimental data to develop their models and validate their designs (30%).

 

Computer and Internet Requirements  

NCSU has recommended minimum specifications for computers that are generally used for courses. Those specifications can be found here: http://www.ncsu.edu/it/compspecs/

Engineering Online recommends that your computer meets or exceeds the following minimum specifications below. A computer with greater capability (processor speed, RAM, internet bandwidth, disk capacity) will be more likely to properly display the video content of Engineering Online courses.

Windows:

  • Microsoft Windows XP, Windows 2003, or Windows Vista
  • Intel-compatible 1 GHz processor
  • 512 MB RAM
  • 60 GB hard drive with 1 GB free space available
  • Video display at 1024 x 768 or greater
  • Sound output and speakers
  • Microsoft Internet Explorer 6.0 SP1 or later, Firefox 2.0 or later, or Google Chrome 1.0
  • Windows Media Player 9.0 or later
  • Silverlight  (viewers may be prompted to install this when first viewing a presentation)
  • Real One Player Basic (required for certain courses)
  • Adobe Acrobat Reader
  • Broadband Internet connection (256 Kbps or more)

Mac OS X:

  • Mac OS X 10.4.8 or later
  • G4 processor
  • 512 MB RAM
  • 60 GB hard drive with 1 GB free space available
  • Video display at 1024 x 768 or greater
  • Sound output and speakers
  • Safari 2.0.4 (or later) or Firefox 2.0 (or later)
  • Silverlight  (viewers may be prompted to install this when first viewing a presentation)
  • Real One Player Basic (required for certain courses)
  • Adobe Acrobat Reader
  • Broadband Internet connection (256 Kbps or more)
  • NOTE:  The Flip4Mac plug-in causes problems when viewing Mediasite presentations and should be disabled.

Linux:

  • Playback of Mediasite presentations on Linux is accomplished via the Moonlight Project, an open source implementation of Microsoft Silverlight. For more installation on the installation and configuration of Moonlight, please visit http://www.go-mono.com/moonlight/. The compatible operating systems and browsers are listed on this page.
  • Microsoft Media Pack for Moonlight
  • Adobe Reader for Unix
  • Broadband Internet connection (256 Kbps or more)

 

Instructor  

Dr. Gregory D. Buckner, Associate Professor
Dept. of Mechanical & Aerospace Engineering
North Carolina State University
2403 Broughton Hall
Campus Box 7910
Raleigh, NC 27695-7910

Phone: (919) 515-5270
Fax: (919) 515-7968
E-Mail: greg_buckner@ncsu.edu
Instructor Website: http://www.mae.ncsu.edu/homepages/buckner/index.html