Some of the content on this website requires JavaScript to be enabled in your web browser to function as intended. While the website is still usable without JavaScript, it should be enabled to enjoy the full interactive experience.

Skip to Main Content

Electrical and Computer Engineering|College of Engineering and Applied Science

John F. O'Brien

Associate Professor of Electrical & Computer Engineering

Room 5034, Engineering Building
University of Wyoming
College of Engineering and Applied Science
Department of Electrical & Computer Engineering
Dept. 3295
1000 E. University Avenue
Laramie, WY 82071
Phone: 307.766.2162
Fax: 307.766.2248


  • 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:


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:

  • O’Brien, J.F. and Carruthers, D.J., “Nonlinear Dynamic Compensation for Large-Feedback Control of a Servomechanism with Multiple Nonlinearities,” Control Engineering Practice, Vol 21, p 1531-1541, Nov 2013.
  • McInroy, J.E., O’Brien, J.F. and Allias, A.A., “Designing the Dynamics and Control of Fault Tolerant Micromanipulation Systems,” IEEE Mechatronics, accepted Nov 2013.
  • Mock, C., Hamilton, Z., Carruthers, D. and O’Brien, J., “Nonlinear Compensation for High Performance Feedback Systems with Actuator Imperfections,” 6th ASME Annual Dynamic Systems and Control Conference, Palo Alto, CA, October 2013.
  • McInroy, J., O’Brien, J. and Allais, A., “Designing Dynamics and Control of Redundant Gough-Stewart Micromanipulators,” IEEE International Conference on Robotics and Automation, Karlsruhe, Germany, May 2013.
  • Allias, A.A., McInroy, J.E., O’Brien, J.F., “Spatial Manipulation Using an Even Number of Parallel Force Actuators,” IEEE Transactions on Robotics, Vol. 28 No 6, pg 1323-1335, December 2012.
  • O’Brien, J.F. Frequency-Domain Control Design for High-Performance Systems, Institution of Engineering and Technology, London, UK, 2012.
  • Allias, A.A., McInroy, J.E., O’Brien, J.F., “A New Class of Locally Decoupled Gough-Stewart Platform Manipulators,” IEEE/RSJ International Conference on Intelligent Robots and Systems, pp. 1301-1306, Vilamoura, Portugal, October 2012.
  • O’Brien, J.F., “Trends in Region 3 Control System Performance as Wind Turbine Size Increases,” Journal of Automatic Control and System Engineering, Vol 12, Issue 1, pp. 45-55, June 2012.
  • Parkins, J.A. and O’Brien, J.F., “A Modified Command Feedforward Tracking Control System Applied to the PRRR-RR Parallel Mechanism,” Symposium on SPIE Smart Structures and Materials, San Diego, March 2012.
  • Yang, Y. and O’Brien, J.F., “A Novel Composition of Two Parallel Robots for 6DOF Workspace,” IEEE International Conference on Robotics and Automation, Shanghai, China, May 2011.
  • Carruthers, D, and O’Brien, J, “Two Degree-of-Freedom Parallel Mechanisms for Vibration Suppression and Tracking,” SPIE Symposium on Smart Structures and Materials, San Diego, March 2011.
  • O’Brien, J.F., “A Coordinate-free Method for Finding Constraint Singularities,” International Journal of Robotics and Automation, Vol. 26, Issue 2, February 2011.
  • Nelson, J., Carruthers, D. O’Brien, J. and McInroy J., “Design and Control of a 2-DOF Parallel Mechanism Using Prismatic and Revolute Actuators," IASTED International Conference on Robotics and Applications, ,Cambridge, MA, Nov 2010.
  • Yang, Y. and O’Brien, J.F., “Singularity-free Design of the 3-UPU Parallel Robot,” IEEE Conference on Automation Science and Engineering, Toronto, ON, August 2010.
  • Yang. Y. and O’Brien, J.F., “A Sequential Method for the Singularity Free Workspace Design of a Planar 3-legged Parallel Robot,” Mechanism and Machine Theory, Vol 45, Issue 11, pg 1694-1706, November 2010.
  • O’Brien, J.F., “Multi-path Nonlinear Dynamic Compensation for Rudder Roll Stabilization,” Control Engineering Practice, Vol. 17, Issue 12, pg 1405-1414, December 2009.
  • Yang, Y. and O’Brien, J.F., “A Geometric Approach for Singularity Free Parallel Robot Designs,” IEEE International Conference on Robotics and Automation, Kobe, Japan, May 2009.
  • 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,” Journal of Systems and Control Engineering, February 2009.

Share This Page:

John F. O'Brien

Footer Navigation

University of Wyoming
1000 E. University Ave. Laramie, WY 82071 // UW Operators (307) 766-1121 // Contact Us