605 ASEC
(330) 972-5991
Ph.D. Electrical Engineering, Vanderbilt University, Nashville, TN, December 1984.
Dissertation: Parallel Methods for the Real-time Simulation of Stiff Nonlinear Systems
(under the advisement of Prof. Guy O. Beale)
M.S. Physics, Vanderbilt University, Nashville, TN, August 1982.
Thesis: A Study of Quark and Gluon Jet Production through the Observation of Event Shapes
(under the advisement of Prof. Robert S. Panvini)
B.S.E.E., Ohio Northern University, Ada, OH, May 1980.
B.A. Physics, Ohio Northern University, Ada, OH, May 1980.
My research interests are generally in the areas of system dynamics and control, with specialization in modeling and simulation. I have particular expertise in fractional-order systems and their applications.
My work with NASA Glenn Research Center includes specific applications to supersonic inlets, and more recently batteries and energy storage. The battery research deals with minimum-damage charging techniques to extend battery life. This has required the development of a generally useful battery modeling method based on first principles. This model has been implemented numerous times on microcontrollers to determine the state-of-charge of individual battery cells, and provide life-extending control for the particular cell. Through our Wright Center for Sensor Systems Engineering, we are developing adaptive battery arrays that use networked, wireless, model-embedded microcontrollers to extend the life and functionality of battery packs.
I have published one textbook, one monograph, edited one conference proceedings, have seven book chapters, twenty NASA papers, and over 120 papers in archival journals and national and international technical proceedings. My research has led to over $1,500,000 in research funding. I was chosen for a NASA Tiger Team for the International space Station Batteries in 2003. I am a Senior Member of IEEE, a Senior Member of AIAA, hold one patent, serve on several editorial boards, and have been selected as the 2004 Tau Beta Pi Outstanding Teacher for the College of Engineering.
“Ultracapacitor Energy Management and Controller Development for a Series-Parallel 2x2 Hybrid Electric Vehicle,” Jared Hicks, Robert Gruich, Alex Oldja, Dustin Myers, Tom T. Hartley, Robert Veillette, Iqbal Husain, IEEE Vehicular Propulsion and Power Conference, Arlington, TX, Sept. 2007.
“Coordinated Discharge of a Collection of Batteries,” Omer Gundungus, Shiva Sastry, Robert J. Veillette, Tom T. Hartley, Journal of Power Sources, Feb. 2007.
“Implementation of Fractional-order Operators on Field Programmable Gate Arrays,” Cindy Jiang, Joan E. Carletta, and Tom T. Hartley, in Springer Monograph on Fractional Derivatives, 2007.
“Battery Modeling for the International Space Station,” Tom T. Hartley and Anthony Jannette, NASA Battery Workshop, Huntsville, AL, November, 2005.
“A First-Principles Battery Model for the International Space Station,” Tom T. Hartley and Anthony Jannette, IECEC 2005, San Francisco, CA, August 2005.
“A Frequency-Domain Approach to Optimal Fractional-Order Damping,” Tom T. Hartley and Carl F. Lorenzo, Journal of Nonlinear Dynamics, vol 38, nos 1-4, pp 69-84, December 2004.
“Dynamics and Control of a Moving Web,” Brad Yerashunas, Alex DeAbreu, and Tom T. Hartley, IEEE Transactions on Control Applications, vol 11, no 5, pp 684-693, Sept. 2003.
“Dynamics and Control of Initialized Fractional-Order Systems,” Tom T. Hartley and Carl F. Lorenzo, invited paper in a special issue on Fractional-Order Systems in Nonlinear Dynamics, vol 29, nos 1-4, pp 201-233, July, 2002.
“Variable Order and Distributed Order Fractional Operators,” Carl F. Lorenzo and Tom T. Hartley, invited paper in a special issue on Fractional-Order Systems in Nonlinear Dynamics, vol 29, nos 1-4, pp 57-98, July, 2002.
“Optimal Battery Charging for Damage Mitigation,” Tom T. Hartley and Carl F. Lorenzo, presented at the NASA Battery Workshop, Huntsville, AL, November 2002.
“Behavioral Modeling of Batteries and Fuel Cells,” Lei Xia and Tom T. Hartley, 2000 Power Systems Conference, San Diego, November, 2000.
“Device Characteristics of Batteries and Fuel Cells,” Lei Xia and Tom T. Hartley, 17th International Electric Vehicle Symposium, October, 2000.
“The Generation of Reduced Order Linear Models of Multidimensional Supersonic Inlets,” Amy Chicatelli & Tom T. Hartley, NASA CR-1998-207405, May 1998.
"Chaos in a Fractional Chua Order System," T.T. Hartley, C.F. Lorenzo & H.K. Qammar, IEEE Trans. Circuits & Systems I, vol 42, no 8, pp 485-490, August, 1995.
Digital Simulation: A Control Systems Approach, Tom T. Hartley, G.O. Beale, & S.P. Chicatelli, Textbook published by Prentice-Hall, March 1994.
"Control of Chua's System," T.T. Hartley & F. Mossayebi, Invited Paper for Chua's Circuit Special Issue of the Journal of Circuits, Systems, and Computers, vol 3 no 4, pp 173-194, 1992.
"On the Simulation of the Space Shuttle Main Engine," A. Mohammad, J.A. De Abreu-Garcia, & T.T. Hartley, Proceedings of the IEEE Industrial Electronics Society Conference, Asilomar CA, November 1990.
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Last modified on 6 June 2008.