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Summary
• Technical Group Lead of Advanced Control and Evolvable Systems Group in the Intelligent System Division at NASA Ames Research Center
• Official Position: Research Computer Scientist
• Ph.D. degree from Santa Clara University and M.S. from Stanford University in Mechanical Engineering
• 28-year career at NASA Ames Research Center
• Associate Technical Lead for NASA Fixed Wing Project (2012-present)
• Project Scientist for NASA Integrated Resilient Aircraft Control Project (2007-2010)
• Deputy Principal Investigator for NASA Integrated Resilient Aircraft Control Project (2005-2006)
• Adjunct Professor of Mechanical Engineering Department at Santa Clara University (2006-present) teaching graduate courses in Adaptive Control, Advanced Dynamics, and Aircraft Flight Dynamics and Performance.
• Technical consultant for Intellectual Property Law Office (2000-2005)
• AIAA Associate Fellow
• Chair-Elect of AIAA Intelligent Systems Technical Committee (2015-2017)
• Research experience includes aircraft MDAO (multidisciplinary analysis design and optimization), aeroelasticity, flight control, adaptive control, optimal control, distributed parameter optimal control, flow control, turbomachinery aerodynamics, structural dynamics
• Published 135 peer-reviewed technical publications including 20 journal articles, 5 NASA reports, and 3 book chapters

Research Highlights
• Developed wing shaping control method using distributed propulsion (2012), invention disclosure
• Developed adaptive aeroelastic wing shaping method and variable camber continuous trailing edge flap concept (2010), patent pending
• Developed new optimal control modification adaptive control technique (2008) which was successfully flown on NASA F-18 aircraft (2010), patent pending
• Developed structural vibration suppression control method for rotor blades (1992), U.S. patent

Honors and Awards
• NASA Exceptional Scientific Achievement Medal (2012)
• NASA Exceptional Achievement Medal (1997)
• NASA Space Act Award (2002)
• NASA Ames Honor Award for Excellence in Engineer Category (2012)
• NASA Ames Honor Award for Excellence in Engineer Category (1999)
• Three NASA Ames Technology Transfer Awards (2014)
• NASA Group Achievement Medal (2009)
• NASA Ames Outstanding Achievement (1997)
• 23 other NASA career awards
• One U.S. patent (2002), two U.S. patents in pending, and 8 NASA invention disclosures
• AIAA Intelligent Systems Technical Committee Distinguished Service Award (2012)
• Santa Clara University Adjunct Lecturer of the Year Award (2011)
• Best Paper Award AIAA Infotech@Aerospace Conference (2007)
• Top-Ten-Best-Paper Award AIAA Guidance, Navigation, and Control Conference (2004)

Technical Leadership
• Technical Group Lead of Advanced Control and Evolvable Systems (ACES) group in the Intelligent Systems Division (present) - Provides technical oversight and leadership of ACES group which comprises 22 research engineers and scientists to conduct applied research in flight dynamics and control, guidance, and aerospace MDAO.
• Associate Technical Lead of Aerodynamic Efficiency for NASA Fixed Wing Project (2012-present) - Serves as a technical lead at NASA Ames Research Center for the Fixed Wing Project to provide research leadership in aerodynamic efficiency sub-project.
• Research Area Lead of Adaptive Aeroelastic Shape Control (2012-present) - Leads a team of 14 researchers to conduct MDAO research to develop adaptive aeroelastic wing shaping control technology for drag reduction for future generation aircraft.
• Project Scientist of NASA Integrated Resilient Aircraft Control (IRAC) Project (2007-2010) - Served as Project Scientist to provide technical oversight and leadership to the IRAC Project in developing and managing research plans for all four NASA research centers (Ames, Armstrong, Glenn, and Langley).
• Deputy Principal Investigator of NASA IRAC Project (2005-2006) - Served as Deputy PI for the modeling technical area of the IRAC project, and led the airframe research planning at the Aeronautics Planning Workshop (2005) at NASA Headquarters.
• Project Lead of NASA Damage Adaptive Control System (DACS) Project (2004-2005) - Led research activities at NASA Ames Research Center and conducted multidisciplinary research to develop a flight dynamic model of damaged Generic Transport Model (GTM) and adaptive flight control technology for damaged aircraft recovery.
• Integrated System Test (IST) Manager of Fan Drive Activation Project in 40-By-80-By-120-Ft National Full-Scale Aerodynamic Complex (NFAC) (1997-1999) - Served as IST manager to conduct analyses and experiments for aerodynamic performance and structural dynamic verification of the fan drive system of the NFAC.

Research Activities
• Developing MDAO capabilities for N+3 flexible aircraft concepts by leveraging wing flexibility for aerodynamic performance (2010-present). These capabilities include aerodynamics, aeroelasticity, aero-propulsive-elasticity, flight dynamics, flutter analysis, multidisciplinary optimization for drag reduction, aeroservoelastic control for flutter suppression, load alleviation, and multi-objective flight control.
• Developed MDAO concept for adaptive aeroelastic wing shaping control for drag reduction (2010) which produces novel aerodynamically efficient elastic wing shapes and a novel control actuator called variable camber continuous trailing flap (VCCTEF). Work has been published by Aviation Week & Space Technology in 2011, 2012, and 2013.
• Developed new adaptive control method that combines adaptive control with optimal control called Optimal Control Modification (OCM) (2008). The method was validated in NASA Ames motion-based Advanced Concept Flight Simulator (ACFS) with eight NASA test pilots (2009) and successfully flown on NASA F/A-18A aircraft at NASA Armstrong (2010-2011). The method has been extended to a multi-objective optimal control framework (2012-present).
• Developed new stability analysis method for adaptive control using time-window analysis called Bounded Linear Stability Analysis (BLSA) (2007-2010).
• Developed hybrid adaptive control method that combined adaptive control and least-squares parameter estimation (2006) to improve robustness by reducing high-gain effect of MRAC and improve tracking by least-squares method.
• Conducted flight dynamic modeling of damaged GTM (2005) with damaged wings, horizontal tails, and vertical tail, and disseminated GTM flight dynamic model for flight control research.
• Conducted flight-propulsion control investigation of GTM with vertical tail damage (2008).
• Developed distributed-parameter optimal flow control method using least-squares parameter estimation method and adjoint-based optimization for a hyperbolic conservation-law model of 1-D unsteady flow through stators in a low-speed axial-flow compressor (2004-2005).
• Developed 1-D unsteady Euler CFD code using mixed implicit-explicit wave-splitting scheme to model mean flow in NASA Ames 11-Ft Transonic Wind Tunnel (TWT) and distributed-parameter model-predictive optimal control method for Mach number regulation in the presence of test section model blockage (2003-2004).
• Conducted 2-D cascade potential flow modeling for aerodynamic analysis of wind tunnel performance (2002).
• Conducted aerodynamic design optimization of rotor blades (1996-1998) to obtain improved aerodynamic performance of NASA Ames 11-Ft TWT. Developed turbomachinery code for analysis and design of axial-flow compressors and contributed to Boeing Commercial Airplanes streamline curvature turbomachinery aerodynamic analysis code HTO-300.
• Developed structural vibration suppression control method for the 11-Ft TWT compressor rotor blades (1992).
• Conducted finite-element structural dynamic modeling and experimental investigation of vibration of composite rotor blades and wing structures in NASA Ames wind tunnels (1986-1992).
• Conducted wind tunnel tests and experimental facility research at NASA Ames 11-Ft TWT and 12-Ft Pressurized Wind Tunnel (PWT) (1986-1992).

Selected Publications
• Nguyen, N., “Elastically Shaped Future Air Vehicle Concept,” NASA Innovation Fund Award 2010 Report, October 2010, submitted to NASA Innovative Partnerships Program.
• Nguyen, N., Trinh, K., Reynolds, K., Kless, J., Aftosmis, M., Urnes, J., and Ippolito, C., “Elastically Shaped Wing Optimization and Aircraft Concept for Improved Cruise Efficiency,” AIAA Aerospace Sciences Meeting, AIAA-2013-0141, January 2013.
• Nguyen, N., “Least-Squares Model Reference Adaptive Control with Chebyshev Orthogonal Polynomial Approximation,” AIAA Journal of Aerospace Information Systems, Vol. 10, No. 6, pp. 268-286, June 2013.
• Nguyen, N., “Optimal Control Modification for Robust Adaptive Control with Large Adaptive Gain,” Systems & Control Letters, 61 (2012) pp. 485-494.
• Nguyen, N., “Active Wing Shape Control Technology for Aircraft,” NASA Tech Briefs Magazine, Vol. 34, No. 4, April 2010.
• Nguyen, N., “One-Dimensional Unsteady Periodic Flow Model with Boundary Conditions Constrained by Differential Equations,” AMSE Journal of Fluids Engineering, Vol. 131, No., 6, 061201, June 2009.
• Nguyen, N., “Adjoint Optimization of One-Dimensional Hyperbolic Equations with Constrained Periodic Boundary Conditions,” Elsevier Journal of Computer Methods in Applied Mechanics and Engineering, 197 (2008) pp. 4683–4691, October 2008.
• Nguyen, N., “Adjoint Optimization of One-Dimensional Hyperbolic Equations with Constrained Periodic Boundary Conditions,” Elsevier Journal of Computer Methods in Applied Mechanics and Engineering, 197 (2008) pp. 4683–4691, October 2008.
• Nguyen, N., Bright, M., Culley, D., “Adaptive Feedback Optimal Control of Flow Separation on Stators by Air Injection,” AIAA Journal, Vol. 45, No. 6, June 2007.
• Nguyen, N., Ardema, M., “Predictive Optimal Control of a Hyperbolic Distributed Model for a Wind Tunnel,” AIAA Journal of Guidance, Control, and Dynamics, Vol. 29, No. 3, June 2006.
• Nguyen, N., Ting, E., Nguyen, D., Trinh, K., “Flutter Analysis of Mission-Adaptive Wing with Variable Camber Continuous Trailing Edge Flap,” AIAA Science and Technology Forum, AIAA-2014-0839, January 2014.
• Nguyen, N., “Multi-Objective Optimal Control Modification Adaptive Control Method for Systems with Input and Unmatched Uncertainties,” AIAA Science and Technology Forum, AIAA-2014-0454, January 2014.
• Nguyen, N., “Bi-Objective Optimal Control Modification Adaptive Law for Unmatched Uncertain Systems,” AIAA Guidance, Navigation, and Control Conference, AIAA-2013-4613, August 2013.
• Nguyen, N., Krishnakumar, K., and Boskovic, J., "An Optimal Control Modification to Model Reference Adaptive Control for Fast Adaptation," AIAA Guidance, Navigation, and Control Conference, AIAA-2008-7283, August 2008.
• Nguyen, N., Krishnakumar, K., Kaneshige, J., and Nespeca, P., “Dynamics and Adaptive Control for Stability Recovery of Damaged Asymmetric Aircraft,” AIAA Guidance, Navigation, and Control Conference, AIAA-2006-6049, August 2006.
• Nguyen, N., Bright, M., and Culley, D., “Feedback Interior Pointwise Control of Euler Equations for Flow Separation Control in Compressors,” AIAA Flow Control Conference, AIAA-2006-3020, June 2006.
• Nguyen, N., “Adjoint-Based Optimization of Hyperbolic Equations with Nonlinear Differential Equation Constraints on Two-Point Boundary Conditions,” 7th World Congress on Computational Mechanics, July 2006.

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