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Meeting	ACGS Committee Meeting 114 - Cleveland, Ohio - October 2014
Agenda Location	4 GENERAL COMMITTEE TECHNICAL SESSION 4.2 Government Agency Summary Reports 4.2.3 NASA 4.2.3.2 John Glenn Research Center
Title	John Glenn Research Center
Presenter	Sanjay Garg
Available Downloads*	presentation
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Abstract	LCC – Intelligent Control and Autonomy Branch, NASA Glenn Research Center Research in Controls and Diagnostics for Intelligent Aerospace Propulsion Systems Sanjay Garg Sanjay.garg@nasa.gov The Intelligent Control and Autonomy Branch at NASA Glenn Research Center continues to have a robust research effort in development of propulsion control and diagnostics technologies. Provided below is a summary of our current tasks under the NASA Aeronautics Research Mission programs. Note that a change in the NASA Aeronautics program structure is being proposed and is pending congressional approval. This presentation covers a few of these tasks in more detail and also provides a summary of some of our recent significant accomplishments. Fundamental Aeronautics Program Distributed Engine Control: This task is developing tools and methods to study and enable the engine control hardware architecture of the future which is expected to be decentralized and modular with smart components interfacing through a digital data bus. Model Based Engine Control: This task is developing the engine control logic architecture of the future which will help increase engine operational efficiency by reducing the conservatism in control design. Active Combustion Control: This research is focused on developing the tools and methods to provide effective suppression of thermo-acoustic instabilities in future low emission combustors. Pressure Gain Combustion: This task is looking at initial innovative concepts for unsteady combustion which provide a pressure gain across the combustor as opposed to the traditional combustors which have a small pressure loss. This work is supported with funding from Air Force Research Lab. Dynamic Systems Analysis: The objective of this task is to develop tools and techniques that can be used to assess, at the early design stage, the capability of new turbo-engine designs to meet dynamic performance and operational safety requirements. Aero-Propulso-Servo-Elasticity: This work is done in collaboration with NASA LaRC and the focus is to develop tools and techniques to be able to assess the coupling between aero-servo-elastic modes and the propulsion system for the future supersonic aircraft configurations. Aviation Safety Program Gas Path Health Management: The focus on this effort is developing innovative approaches for engine gas path performance estimation and fault diagnostics. Robust and Enhanced Engine Response Propulsion Control: The focus is on developing the capability to be able to use the engines for flight control and flight path management in emergency situations. Run-time Assurance of Complex Systems: The concept of run-time assurance is to provide safe system operation with advanced complex control algorithms which might be too difficult to certify.