Major 

Electro-Mechanical Machine Design
 
 
 Research Interests

Electromagnetic and Electro-Mechanical Machine design

Vibration and Acoustic Noise Reduction

Analysis and Design of Micro-Motors, Micro-Actuators and Micro Speaker

  
 
 Education 

Ph.D., University of California at Berkeley, U.S.A., 1994
 
 
 Selected Publications 
  1. Hwang, S. M. et al, "Performance Comparison Between Circular and Elliptical Magnetic Circuits in Elliptical Microspeakers Used for Mobile Phones," Key Engineering Materials, 2004.

2. Hwang, S. M. et al, "Reduction of Harmonic Distortion in Dual Magnet Type Microspeaker," IEEE Transactions on Magnetics, 2004.

3. Hwang, S. M. et al, "Development of Solenoid-Type Vibrators Used for Mobile Phones," IEEE Transactions on Magnetics, 2003.

4. Hwang, S. M. et al, "New Development of Integrated Microspeaker and Dynamic Receiver Used for Cellular Phones," IEEE Transactions on Magnetics, 2003.

5. Hwang, S. M. et al, "Performance Comparison Between Inner and Outer Permanent Magnet Type Microspeakers Used for Mobile Phones," Journal of Applied Physics, 2003.

6. Hwang, S. M., "Performance Design of a Dynamic Receiver for Personal Communication Devices Using the Finite Element Method," Journal of Magnetism and Magnetic Materials, 2001.

7. Hwang, S. M., "Analysis of Vibration for Permanent Magnet Motors Considering Mechanical and Magnetic Coupling Effects," IEEE Transactions on Magnetics, 2000.

8. Hwang, S. M., "Cogging Torque and Acoustic Noise Reduction in Permanent Magnet Motors by Teeth Pairing," IEEE Transactions on Magnetics, 2000.

9. Hwang, S. M., "Blank Design in Sheet Metal Forming by Backward Tracing Scheme of the Finite Element method," Transactions of NAMRI/SME, Vol.ⅩⅩⅦ, 1999.

10. Hwang, S. M., "Effect of Segmented Poles on Motor Performances," IEEE Transactions on Magnetics, Vol. 35, No. 5, 1999.

  
 
 Professional Experiences 

Lecturer, Assistant Professor, School of Mechanical Engineering, Pusan National University, Korea (1996-Present)

Post-Doc, Department of Mechanical Engineering University of California at Berkeley, U.S.A (1994-1996)

Research Consultant, Suspension Motor Design, Ford at Detroit, U.S.A. (1992-1993)

Teaching Assistant, Department of Mechanical Engineering, University of California at Berkeley, U.S.A. (1991-1992)

Research Engineer, EPS Motor Design, General Motors at Saginaw, U.S.A. (1991)

Research Assistant, Department of Mechanical Engineering, University of California at Berkeley, U.S.A. (1989-1994)

  
 
 Professional Societies & Activities 

Member, IEEE Transactions on Magnetics, IEEE Transactions on Industrial Applications, KIEE, KSAE, KSNVE, KSME

Editor, IMCSD (1996-Present)

  
 
 Honors and Awards 

  
 
 International Joint Research & Activities 

Joint Research with Professor Dennis K. Lieu in Department of Mechanical Engineer, University of California at Berkeley, U.S.A.