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Dr. Jeffrey D. Keller, Associate
Tel.: 609.538.0444 ext 119
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Background
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- Joined CDI in 1997
- Ph.D. in Mechanical and Aerospace Engineering, Princeton University, 1998
- M.A. in Mechanical and Aerospace Engineering, Princeton University, 1993
- M.Engr. Aeronautical Engineering, Rensselaer Polytechnic Institute, 1991
- B.S. (Summa Cum Laude) Aeronautical Engineering, Rensselaer Polytechnic Institute, 1990
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Research Interests
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Dr. Keller has been active in the research and development of aircraft and helicopter flight dynamics since the 1990s, including leading research into
low-order inflow models for helicopters that capture fundamental cross-coupling behavior, in particular the coupled roll-pitch response characteristics
in low speed flight. While at CDI, Dr. Keller has led and supported several flight dynamics and simulation software development projects, including
projects in aircraft flight controls, V-22 icing detection and simulation demonstration, and ship airwake modeling for helicopter-ship
dynamic interface (DI) simulation. His most recent work has been in unmanned air vehicle (UAV) flight dynamics modeling, detection, and
recovery from aerodynamic disturbances (upsets), as well as in real-time aeroelastic and aeroservoelastic models for fixed wing aircraft.
His wide-ranging work has also included experimental and analytical investigations focusing on unsteady fluid dynamic and heat transfer
mechanisms including thermal cycling in un-isolable branch lines of pressurized water reactors, valve leakage in main steam line safety
relief valves of boiling water reactors, and vibration of boiling water reactor jet pumps.
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Professional Societies and Honors
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- Senior Member of American Institute and Aeronautics and Astronautics
- Member of American Helicopter Society
- Recipient of American Helicopter Society Robert A. Lichten Award, 1995
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Selected Publications
- "A Physics-Based Model of Rotorcraft Brownout for Flight Simulation Applications," American Helicopter Society 62nd Annual Forum, Phoenix, AZ., May 2006 (with G.R. Whitehouse, D.A. Wachspress, M.E. Teske and T.R. Quackenbush).
- "Distributed Multi-Vehicle Simulation Including High-Order Airwake Representation," American Helicopter Society 60th Annual Forum, Baltimore, MD., June 2004 (with R.M. McKillip, Jr., D.A. Wachspress, G.R. Whitehouse, T.R. Quackenbush, and A.H. Boschitsch).
- "Full Vehicle Flight Simulation with Real Time Free Wake Methods," Proceedings of the American Helicopter Society Aeromechanics Specialists Meeting, San Francisco, CA, January 2002 (with T.R. Quackenbush, D.A. Wachspress, and A.H. Boschitsch).
- "Algorithmic Icing Detection for the V-22 Osprey," presented at the American Helicopter Society Flight Controls and Crew Systems Design Specialists' Meeting, Philadelphia, PA, October 2002 (with R.M. McKillip, Jr.).
- "An Investigation of Helicopter Dynamic Coupling Using an Analytical Model," Journal of the American Helicopter Society, Vol. 41, (4), October 1996.
- "The Effect of Inflow Models on the Predicted Response of Helicopters," Journal of the American Helicopter Society, Vol. 43, (1), January 1998 (with U. Arnold, H.C. Curtiss, Jr., and G. Reichert).
- "Modeling Swirl Penetration and Thermal Cycling in Un-isolable Branch Lines of PWR Plants," Proceedings of the 2003 ASME Pressure Vessels and Piping Conference, Cleveland, OH, July 2003 (with A.J. Bilanin and S.T. Rosinski).
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