Gary E. Young

Phone:  (405) 744-5900
Email:  gary.young@okstate.edu
Address:  Oklahoma State University
                218 Engineering North
                Stillwater, OK 74078


Professor
School of Mechanical and Aerospace Engineering


Academic Background

Ph.D., Mechanical Engineering, University of California, Berkeley
M.S., Mechanical Engineering, University of California, Davis
B.S., Mechanical Engineering, University of California, Davis

Areas of Interest

Dynamic Systems and Control
Nonlinear Uncertain Systems
Real-Time Distributed Systems

Current and Recent Projects

Control of Mechanical Systems - Advanced nonlinear control strategies are being studied and implemented on experimental hardware to provide both position and velocity control of mechanical systems with tight constraints on speed of response, allowable overshoot, and available control actuation.

Analysis and Control of networked systems - real-time networks are becoming common in many mechanical systems including business machinery and vehicles. Ways of modeling the effects of the network on the entire dynamic system are being studied as well as analysis strategies. It is hoped that a design methodology will evolve which better predicts actual system performance over the 'worst-case' strategies which are currently being used.

Modeling and prediction of hydraulic fracturing pressures - hydraulic fracturing is used to enlarge the rock formations which trap gas and oil many thousands of feet underground. This process is extremely nonlinear and difficult to model because of inaccessibility issues. It is desirable to be able to predict the state of the formation as material is being pumped downhole to alleviate the possibility that the material will seal the fracture rather than enlarge it.

Selected Publications

"Block-Recursive Identification of Parameters and Delay in the Presence of Noise", with K.S.S. Rao, and V.R. Chatufale, to appear in the Journal of Dynamic Systems, Measurement, and Control, December 1995.

"A Study on Sliding Mode State Estimation", with J.-H. Choi and E. Misawa, to appear in the Journal of Dynamic Systems, Measurement, and Control.

"Topics Relating to Fault Tolerance and Reliability of Control Algorithms Operating in Multi-tasking, Hard Deadline Real-Time Environments", with M.R. Moan and E. Misawa, ASME Symposium on Mechatronics, DSC-Vol. 50, pp. 171 - 181 and presented at the 1993 ASME Winter Annual Meeting, New Orleans, LA.

"Transient Error Detection during UDUT Covariance Calculations using Algorithm Based Fault Tolerance", with M. Moan and E. Misawa, submitted to the Journal of Dynamic Systems, Measurement, and Control.

"A Study on Sliding Mode State Estimation", with J. Choi and E. Misawa, Proceedings of the 1993 American Control Conference, San Francisco, CA, pp. 2572 - 2576 and to appear in the Journal of Dynamic Systems, Measurement, and Control.

"Observer-Based Discrete-Time Sliding Mode Control with Computational Time Delay", with E. Misawa, ASME Dynamic Systems and Control 1994 , Book No. G0909A, pp. 109 - 115, and presented at the 1994 ASME International Congress and Exposition, Chicago, IL.

"Lateral and Longitudinal Dynamic Behavior and Control of Moving Webs", with K.N. Reid, Journal of Dynamic Systems, Measurement, and Control, Vol 115, No. 2(B), June 1993, pp. 309 - 317.

"A Lateral Web Limit Cycle Caused by an Air Bar", with J.J. Shelton and B. Fang, Web Handling 1992, ASME Applied Mechanics Division Book No. G00748, pp. 115 - 122, and presented at the 1992 ASME Winter Annual Meeting, Anaheim, CA.


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