University of Connecticut University of UC Title Fallback Connecticut

Xu Chen

ChenXuXu Chen
Assistant Professor

Department of Mechanical Engineering
191 Auditorium Road, Unit 3139
Storrs, CT 06269-3139
Office: United Technologies Eng. Bldg. Rm. 382
Phone: (860) 486-3688
Email: xchen@engr.uconn.edu Web: http://xchen.lab.uconn.edu/.
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Education

  • Ph.D. – UC Berkeley, 2013
  • M.S. – UC Berkeley, 2010
  • B.S. – Tsinghua University, China, 2008

 

Research Focus

  • Controls in additive manufacturing
  • Optimization and controls in data-rich environments
  • Robotics, precision control and vibration rejection, human-machine interactions
  • Process control

 

Awards

  • Young Investigator Award, ISCIE/ASME International Symposium on Flexible Automation, 2014
  • Best Paper Finalist, ISCIE/ASME International Symposium on Flexible Automation, 2014
  • Clyde Johnson Fellowship, UC Berkeley, 2013
  • F. M. Lankershim Fellowship, UC Berkeley, 2013
  • UC Berkeley Outstanding Graduate Student Instructor 2012
  • Chinese Government Award for Outstanding Self-financed Students Abroad 2012 (national award)
  • Frank and Margaret Lucas Fellowship, UC Berkeley, Spring 2011

 

Current Publications

Xu Chen and Masayoshi Tomizuka. Overview and new results in disturbance observer based adaptive vibration rejection with application to advanced manufacturing. International Journal of Adaptive Control and Signal Processing, 2015. [ DOI |.pdf ]

X. Chen and M. Tomizuka, “New Repetitive Control with Improved Steady-state Performance and Accelerated Transient,” IEEE Transactions on Control Systems Technology, vol. 22, no. 2, pp. 664-675, Mar. 2014, doi:10.1109/TCST.2013.2253102 (IEEE link).

X. Chen and M. Tomizuka, “Optimal Decoupled Disturbance Observers for Dual-input-single-output Systems,” ASME Journal of Dynamic Systems, Measurement, and Control, 136.5 (2014), pp. 051018. doi:10.1115/1.4027282 (ASME link).

X. Chen and M. Tomizuka, “Selective Model Inversion and Adaptive Disturbance Observer for Time-varying Vibration Rejection on an Active-Suspension Benchmark,” in European Journal of Control, vol. 19, no. 4, pp. 300-312, Jul. 2013, doi:10.1016/j.ejcon.2013.05.007 (Elsevier link, Related summary and comparison paper)

X. Chen and M. Tomizuka, “A Minimum Parameter Adaptive Approach for Rejecting Multiple Narrow-Band Disturbances with Application to Hard Disk Drives,” IEEE Transactions on Control Systems Technology, vol. 20, no. 2, pp. 408-415, Mar. 2012, doi:10.1109/TCST.2011.2178025 (IEEE link)

X. Chen and M. Tomizuka, “A Convex Optimization Approach for Solving the Robust Strictly Positive Real (SPR) Problem,” in Proceedings of 2012 ASME Dynamic Systems and Control Conference, and 2012 Motion & Vibration Conference, Ft. Lauderdale, FL, Oct. 17-19, 2012, pp. 48-55. (ASME link)

X. Chen, A. Oshima, and M. Tomizuka, “Inverse Based Local Loop Shaping For Vibration Rejection In Precision Motion Control,” in Proceedings of The 6th IFAC Symposium on Mechatronic Systems, Hangzhou, China, Apr. 10-12, 2013, pp. 490-497.

X. Chen and M. Tomizuka, “Control Methodologies for Precision Positioning Systems,” in Proceedings of 2013 American Control Conference, Washington, DC, Jun. 17-19, 2013, pp. 3710-3717. (IEEE link)

X. Chen and M. Tomizuka, “Optimal Plant Shaping for High Bandwidth Disturbance Rejection in Discrete Disturbance Observers,” in Proceedings of the 2010 American Control Conference, Baltimore, MD, Jun. 30-Jul. 02, 2010, pp. 2641-2646. (IEEE link)

X. Chen and M. Tomizuka, “Decoupled Disturbance Observers for Dual-input-single-output Systems with Application to Vibration Rejection in Dual-stage Hard Disk Drives,” in Proceedings of 2012 ASME Dynamic Systems and Control Conference, and 2012 Motion & Vibration Conference, Ft. Lauderdale, FL, Oct. 17-19, 2012, pp. 1544-1553.

L. Sun, X. Chen, and M. Tomizuka, “Selective Iterative Learning Control to Deal with Iteration-dependent Disturbances,” in Proceedings of ISCIE/ASME 2014 International Symposium on Flexible Automation (ISFA2014), Awaji-Island, Hyogo, Japan, Jul. 14-16, 2014.