Accession Number : ADA486578


Title :   Sensing Challenges for Controls and PHM in the Hostile Operating Conditions of Modern Turbine Engine (Postprint)


Descriptive Note : Conference paper


Corporate Author : AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE


Personal Author(s) : Behbahani, Alireza ; Semega, Kenneth


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a486578.pdf


Report Date : Jul 2008


Pagination or Media Count : 14


Abstract : Advanced gas turbine engines have evolved over the last several decades to dominate aviation's propulsion, commercial and the military market. Continuing engine performance and reliability advances will require sensor components that operate reliably under extreme engine operating conditions (e.g., takeoff, max thrust) and in harsh environments (e.g., high temperature and radiation). The design of advanced controls and Propulsion Health Management (PHM) will also depend on the use of components with increased susceptibility to atmospheric radiation. This paper will discuss the current and future engine operating temperature environment that provides major challenges in sensor design for control and propulsion health management. Atmospheric radiation effects on the design and operation of engine electronics and PHM systems will be discussed. Methods to mitigate deleterious effects on system safety and performance will also be discussed. Finally, expected changes in the engine operating conditions over the next several decades will be discussed along with solutions for sensing and control.


Descriptors :   *AIRCRAFT MAINTENANCE , *GAS TURBINES , *AIRCRAFT ENGINES , *DETECTORS , CONTROL SYSTEMS , HIGH TEMPERATURE , IONIZING RADIATION , ELECTROMAGNETIC RADIATION , ELECTRONICS , SYMPOSIA , TEMPERATURE , RADIATION , ENGINE COMPONENTS


Subject Categories : Miscellaneous Detection and Detectors
      Jet and Gas Turbine Engines


Distribution Statement : APPROVED FOR PUBLIC RELEASE