Noise-Source Separation Using Internal and Far-Field Sensors for a Full-Scale Turbofan Engine

Autor:	Lennart S. Hultgren, Jeffrey Hilton Miles
Rok vydání:	2009
Předmět:	Engineering Noise Discriminator Noise measurement Aircraft noise business.industry Acoustics Separation (aeronautics) Full scale Source separation business Automotive engineering Turbofan
Zdroj:	15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference).
DOI:	10.2514/6.2009-3220
Popis:	Noise-source separation techniques for the extraction of the sub-dominant combustion noise from the total noise signatures obtained in static-engine tests are described. Three methods are applied to data from a static, full-scale engine test. Both 1/3-octave and narrow-band results are discussed. The results are used to assess the combustion-noise prediction capability of the Aircraft Noise Prediction Program (ANOPP). A new additional phase-angle-based discriminator for the three-signal method is also introduced.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9b9b10f86eda1ee594f59188abeb80f7 https://doi.org/10.2514/6.2009-3220 Zobrazit plný text záznamu