Faculty
John F. O'Brien , Assistant Professor of Electrical & Computer EngineeringUniversity of Wyoming College of Engineering and Applied Science Department of Electrical & Computer Engineering Current Classes:
EE4220 - Use Internet Explorer to open \\Eeserver2\eelab_k\EE4220\fall08
Education:
B.S. Aerospace Engineering, California State Polytechnic University, Pomona
M.S. Electrical Engineering, University of Wyoming
Ph.D. Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute
Areas of Expertise:
Robotics, Automatic Control
Kinematics, dynamics, and control of parallel mechanisms. Applications include vibration suppression and precision pointing for space/military payloads, and manufacturing.
Related Experience:
MISSILE DEFENSE NATIONAL TEAM SYSTEMS (GENERAL DYNAMICS) - Senior Lead Engineer , 2/02 - 8/03.
GENERAL DYNAMICS - Lead Engineer , 6/01 - 2/02.
NASA JET PROPULSION LABORATORY - Member of Technical Staff , 6/91 - 8/97. Academic Part-Time , 12/89 - 6/91.
Fellowship Awards:
1998 DOE Integrated Manufacturing Predoctoral Fellowship
1996 NASA Graduate Student Research Program Fellowship
1996 University of Wyoming-NASA Space Grant Fellowship
Selected Publications:
Carruthers, D.J., O’Brien, J.F., McInroy, J.E., and Yang, Y., “Development of a Voice Coil-Actuated Limited-DOF Parallel Mechanism for Vibration Suppression (invited paper),” Journal of Systems and Control Engineering, (accepted 2008).
Yang, Y. and O’Brien, J.F., “A Sequential Method for the Singularity Free Workspace Design of a Planar 3-arm Parallel Robot,” IEEE/RSJ International Conference on Intelligent Robotics and Systems, Nice, France, September 2008.
Yang, Y. and O’Brien, J.F., “Finding Unmanipulable Singularities in Parallel Mechanisms Using Jacobian Decomposition,” Journal of Intelligent and Robotic Systems, Vol 53, No 1, pp 3-19, September 2008.
O’Brien, J.F.,“High Order Control with Nonlinear Compensation for Rudder Roll Stabilization,” ASNE Automation and Control Conference, Biloxi, MS, December 2007.
Yang, Y. and O’Brien, J.F., “On the Determination of Parallel Mechanism Unmanipulable Singularities,” IASTED Conference on Robotics and Applications, Wurzburg, Germany, August 2007.
Yang, Y. and O’Brien, J.F., “A Case Study of a Planar 3-RPR Parallel Robot Singularity Free Workspace Design,” IEEE International Conference on Mechatronics and Automation, Harbin, China, August 2007.
O’Brien, J.F. and Wen, J.T., “Kinematic Control of Parallel Robots Exhibiting Self-Motion,” International Journal of Automation, Robotics and Autonomous Systems, Volume 6, No 1, pp 5-16, April 2007.
O’Brien, J.F., Jafari F., and Wen, J.T., “Determination of Unstable Singularities in Parallel Robots with N-arms,” IEEE Transactions on Robotics, Vol 22, No 1, pp. 160-167, Feb 2006.
O’Brien, J.F., Jafari, F., and Wen, J.T., “Self Motion in Parallel Mechanisms with More than Three Arms,“ IEEE International Conference on Robotics and Automation, Barcelona, Spain, April 2005.
