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Approximation of Engine Casing Temperature Constraints for Casing Mounted ElectronicsThe performance of propulsion engine systems is sensitive to weight and volume considerations. This can severely constrain the configuration and complexity of the control system hardware. Distributed Engine Control technology is a response to these concerns by providing more flexibility in designing the control system, and by extension, more functionality leading to higher performing engine systems. Consequently, there can be a weight benefit to mounting modular electronic hardware on the engine core casing in a high temperature environment. This paper attempts to quantify the in-flight temperature constraints for engine casing mounted electronics. In addition, an attempt is made at studying heat soak back effects. The Commercial Modular Aero Propulsion System Simulation 40k (C-MAPSS40k) software is leveraged with real flight data as the inputs to the simulation. A two-dimensional (2-D) heat transfer model is integrated with the engine simulation to approximate the temperature along the length of the engine casing. This modification to the existing C-MAPSS40k software will provide tools and methodologies to develop a better understanding of the requirements for the embedded electronics hardware in future engine systems. Results of the simulations are presented and their implications on temperature constraints for engine casing mounted electronics is discussed.
Document ID
Document Type
Technical Memorandum (TM)
Kratz, Jonathan L.
(NASA Glenn Research Center Cleveland, OH United States)
Culley, Dennis E.
(NASA Glenn Research Center Cleveland, OH United States)
Chapman, Jeffryes W.
(Vantage Partners, LLC Cleveland, OH, United States)
Date Acquired
May 4, 2017
Publication Date
April 1, 2017
Subject Category
Aircraft Propulsion And Power
Statistics And Probability
Metals And Metallic Materials
Report/Patent Number
AIAA Paper 2016-4858
Funding Number(s)
WBS: WBS 109492.
Distribution Limits
Public Use Permitted.
Thermal Analysis
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