Prabhakar R. Pagilla
Research Activities
Current Funded Research Projects
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National Science Foundation, ``SENSORS: A New Laser-Based Sensing System for
Monitoring and Control of Webs,'' September 1, 2004 to August 31, 2008.
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Web Handling Research Center, Oklahoma State University, ``Dynamics of Motor, Controller, and Mechanical Drive for Tension Control,'' John J. Shelton, Co-Principal Investigator, June 1, 2002 - present.
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Web Handling Research Center, Oklahoma State University, ``Web Transport System,'' Karl N. Reid, Co-Principal Investigator, June 1, 2004 - present.
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Web Handling Research Center, Oklahoma State University, ``Lateral Control of a Web,'' John Shelton, Principal Investigator, November 1, 2004 - present.
Past Funded Research Projects
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Oklahoma Center for Advancement of Science and
Technology (OCAST), ``Adaptive Control of Web Guides,'' K.N. Reid, K. Hopcus, and J. Haque, Co-Principal Investigators,
August 1, 2003 to February 28, 2007.
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National Science Foundation, ``CAREER: Robust Controllers for Large-Scale Interconnected
Systems,'' June 15, 2000 to September 30, 2006.
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Raytheon Corporation, ``Nonlinear Guidance and Tracking Algorithm Development,'' Eduardo Misawa, Co-Principal Investigator, September 1, 2002 to June 30, 2004.
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Oklahoma Center for Advancement of Science and Technology (OCAST), ``Modeling and Advanced Control of Web Handling Systems,'' K.N. Reid and K. Hopcus, Co-Principal Investigators, September 1, 1998 to August 31, 2002.
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Web Handling Research Center, Oklahoma State University, ``The Role of Active Dancers in Tension Control of Webs,'' March 1, 1998 - May 31, 2002.
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ALCOA, ``Modeling and control of ALCOA's web handling process lines,'' May 8, 1998 to February 28, 1999.
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National Science Foundation, ``Research Equipment Grant: Experiments in Control of Constrained Nonsmooth Mechanical Systems,'' June 1, 1997 to February 28, 1999.
Current Research Students
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Yunfei Zou (PhD)
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Mauro Cimino (PhD)
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Aravind Seshadri (PhD)
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Carlo Branca (PhD)
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Jamie Lynch (PhD)
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Diao Yu (MS)
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David Chang (BS)
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Chaitanya Challa (MS)
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Tan Chai (MS)
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Pramod Raul (MS)
Recent Graduate Students
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Ramamurthy V. Dwivedula,
Modeling the Effects of Belt Compliance, Backlash, and Slip on
Web Tension and New Methods for Decentralized Control of Web Processing Lines,
PhD dissertation, December 2005. Ram is currently working at Fife Corporation, Oklahoma City, OK.
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Ryan T. Ratliff,
Disc Drive Actuator Design and Control for Robust Non-operational Shock Performance,
PhD dissertation, December 2005. Ryan received a Graduate Research Excellence Award for
his PhD research at Oklahoma State
University. Ryan is currently working at Boeing Corporation,
St. Louis, MO.
Hyperlink version of the thesis.
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Yongliang Zhu,
Adaptive Output Feedback Control of Nonlinear Systems,
PhD dissertation, August 2004.
Yongliang received a Graduate Research Excellence Award for
his PhD research at Oklahoma State
University. Yongliang is
currently working at Caterpillar Inc., Peoria, IL.
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Biao Yu,
Modeling, Control Design, and Mechatronic Implementation of
Constrained Robots for Surface Finishing Applications,
PhD dissertation, December 2000.
Biao received a Graduate Research Excellence Award for
his PhD research at Oklahoma State
University. He is currently working at Mathworks Inc., Natick, MA.
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Pranav Peddi-Ravi, A Laser Based Fiber Optic Sensor for Web Velocity Measurement,
M.S. Thesis, December 2007.
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Anil Abbaraju, A Study on Lateral Web Dynamics and Adaptive Control of Web Guides,
M.S. Creative Component, December 2007.
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Kapil Kasturi, Comparison of WTS Software with MATLAB/SIMULINK,
M.S. Creative Component, December 2007.
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Aravind Seshadri, Model Reference Adaptive Control of Web Guides,
M.S. Thesis, May 2007. Aravind received
a Graduate Research Excellence Award for his M.S. research at the
Oklahoma State University. Aravind is currently pursuing his PhD in MAE at OSU.
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Nilesh Siraskar, Decentralized Control of
Large-Scale Interconnected Systems with Application to Web
Processing Lines, M.S. Thesis, December 2004. Nilesh received
a Graduate Research Excellence Award for his M.S. research at the
Oklahoma State University. He is currently working at Accelent, Minneapolis, MN.
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Seshadri Kuppusamy, Comparison of Active and Passive Dancers for Tension
Disturbance Attenuation in Web Processing Lines, M.S. Thesis, December 2004.
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Ashok Dubey, A Review of Missile Guidance Laws,
M.S. Creative Component Project, May 2004.
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Hongwei Zhong, Decentralized Control of a Class of
Large-Scale Interconnected Nonlinear Systems, M.S. Thesis,
July 2003.
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Gim Ng, Lateral Dynamics and Control of a Web in a
Horizontal Looper, M.S. Thesis, May 2003.
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Sachin Gupta, Decentralized Output Feedback Control of a
Class of Large Scale Systems, M.S. Creative Component
Project, May 2003.
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Inderpal Singh, A Study on Control of Accumulators in
Continuous Web Processing Lines, M.S. Thesis, December,
2002.
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Fu Yuet, Periodic Tension Disturbance Attenuation in
Web Process Lines Using Active Dancers, M.S. Thesis, June,
2002. He is currently working at Caterpillar, Peoria, IL.
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Yongliang Zhu, Adaptive Control of Mechanical Systems with Static and Dynamic
Friction Compensation,'' M.S. Thesis, November, 2001. Yongliang received
a Graduate Research Excellence Award for his M.S. research at the
Oklahoma State University.
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Prasad Perera, The Role of Active Dancers in Tension Control of Webs,
M.S. Thesis, July 2001.
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Shaibal Mandal, Lateral Control of a Web using Estimated
Velocity Feedback, M.S. Thesis, July, 2000. S. Mandal is currently working at
Asyst Technologies, Sunnyvale, CA.
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Kiu Ling Pau, Robust Adaptive Control of Time-Varying
Mechanical Systems: Analysis and Experiments, M.S. Thesis,
December, 1998. K.L. Pau is currently working at TRI Terminal Reality,
Lewisville, TX.
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Shomanah Kelebogile, Adaptive Control of a Class of
Nonlinear Systems, M.S. Creative Component, July, 1998.
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Heejun Kim, Control of a Flexible Manipulator,
M.S. Creative Component, June, 1998.