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Meeting	ACGS Committee Meeting 111 - Reno, Nevada - March 2013
Agenda Location	4 GENERAL COMMITTEE TECHNICAL SESSION 4.1 Government Agencies Summary Reports 4.1.2 NASA 4.1.2.4 Glenn
Title	Glenn
Presenter	Sanjay Garg
Available Downloads*	presentation
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Abstract	NASA GRC Research in Intelligent Propulsion Control and Diagnostics ABSTRACT The controls and Dynamics Branch at NASA Glenn Research Center continues to have a robust research effort in development of propulsion control and diagnostics technologies. Below is a summary of our current tasks under the NASA Aeronautics Research Mission programs. Fundamental Aeronautics Program: Fixed Wing: Dynamic Systems Analysis - Develop the capability to integrate dynamic systems performance and operability issues in the systems analysis evaluation of advanced gas turbine technologies. This is a new effort in FY13. PoC: Jeff Csank, jeffrey.t.csank@nasa.gov High Speed: Aero-Propulso-Servo-Elasticity (APSE) – We are continuing to develop tools and simulations to evaluate the coupling between the propulsion system and flexible aircraft modes for NASA N+2 supersonic vehicle configurations, and control designs to mitigate the coupling effects. PoC: George Kopasakis, gkopasakis@nasa.gov Aeronautical Sciences: We have 4 efforts under this project. Distributed Engine Control (DEC) – We are focusing on developing a hardware-in-the-loop facility to evaluate DEC architectures as well as components being developed under various efforts. GRC also continues research in high temp electronics. We continue to work with the Air Force and industry through the DECWG (Distributed Engine Control Working Group). Air Force recently approved DIRCT (Distributed Intelligent Robust Control Technologies) as a task under the VAATE (Versatile Affordable Advanced Turbine Engine) program, and NASA will collaborate with the Air Force in the task implementation. PoC: Dennis Culley, dennis.e.culley@nasa.gov Model-Based Engine Control (MBEC) – We are continuing the work on developing an engine control architecture based on an on-board engine model which is updated to reflect the current engine condition using an optimal tuner based approach. PoC: Joe Connolly, joseph.w.connolly@nasa.gov Active Combustion Control (ACC) – Our focus for this ongoing research is on developing high bandwidth fuel actuation concepts to allow modulation of fuel flow at low flow numbers, characterize the dynamics associated with various low emission combustor concepts, and apply instability suppression control methods as appropriate. PoC: Thomas Stueber: thomas.j.stueber@nasa.gov (Note that John DeLaat, who some of you might know as the lead for this effort, retired last year). Pressure Gain Combustion (PGC) – The objective of this task is to conceptualize optimized unsteady pressure-gain combustor-turbine system for aircraft applications and develop improved analytical design and performance assessment tools for unsteady combustor and turbine operation. PoC: Dan Paxson, daniel.e.paxson@nasa.gov Aviation Safety Program: Vehicle Systems Safety Technologies: We have 3 efforts under this project. Robust Propulsion Control - This effort is focused on developing models of engine operation outside the normal flight envelope, and designing control logic to maintain best possible engine performance in such conditions. This is a collaborative effort with Langley Research Center with the overall goal to prevent aircraft departure into loss of control conditions. PoC: Jonathan Litt, jonathan.s.litt@nasa.gov Engine Icing Detection and Mitigation: This effort is focused on modeling the effect of engine icing on engine performance and operability, detecting engine ice formation using control sensors, and investigating techniques for mitigating engine icing. PoC: Ten-Huei Guo, ten-huei.guo-1@nasa.gov Gas Path Health Management (GPHM) – We continue to do ground breaking research in on-board model based gas path diagnostics, and are participating in the VIPR (Vehicle Integrated Propulsion Research) engine test program to demonstrate and validate our methods. PoC: Don Simon, donald.l.simon@nasa.gov Aviation Systemwide Safety Technologies: Run-time Safety Assurance of Advanced Propulsion Algorithms- The objective of this task is to investigate and demonstrate ability of run-time safety assurance techniques to help address V&V (Verification and Validation) challenges associated with model-based engine control and diagnostics algorithms. PoC: Edmond Wong, edmond.wong@nasa.gov