Performance Diagnosis for Turbojet Engines Based on Flight Data

Autor:	Ray C. Chang
Rok vydání:	2014
Předmět:	Engineering business.industry Mechanical Engineering Fuzzy set Aerospace Engineering Exhaust gas Turbojet Fuzzy logic Automotive engineering General Materials Science Sensitivity (control systems) business Flight data Reference model Quality assurance Civil and Structural Engineering
Zdroj:	Journal of Aerospace Engineering. 27:9-15
ISSN:	1943-5525 0893-1321
DOI:	10.1061/(asce)as.1943-5525.0000210
Popis:	The purpose of the current study is to improve the flight data analysis in the existing program of flight operations quality assurance (FOQA) of the airlines. The goal is to detect any potential problems related to engine health. The exhaust gas temperature (EGT) is the primary parameter in performance monitoring and diagnosis. Performance reference models are obtained through fuzzy-logic modeling. As the first example in the present paper, the potential problems and abnormal conditions can be diagnosed after a comparative analysis with the reference model for a four-engine jet freighter. This paper also uses a twin-jet passenger transport as the second example to illustrate the concept of relative efficiency for engine components. The sensitivity derivatives of EGT with respect to the operational variables indicate that the performance of these two engines has been declining because of aging.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cba21c42db3eb82baa03fb29bfe9cb33 https://doi.org/10.1061/(asce)as.1943-5525.0000210 Zobrazit plný text záznamu Plný text ve formátu PDF