NASA Technical Reports Server (NTRS) : Correlation pdf

NASA Technical Reports Server (NTRS) : Correlation

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Description of the Book:

The prediction of frequency content and noise levels of turbofan engine core noise is reexamined as a result of recent test data and a new diagnostic technique. The diagnostic technique, utilizing a three-signal coherence method, is used to obtain core noise spectra for several engines. Similarities and differences of the spectra are discussed. Finally, the three-signal coherence data are correlated, leading to an improved core noise prediction procedure

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 1/1/1982
• Year: 1982
• Book Topics/Themes: NASA Technical Reports Server (NTRS), AEROACOUSTICS, AIRCRAFT NOISE, COHERENCE, NOISE MEASUREMENT, NOISE SPECTRA, TURBOFAN ENGINES, AIR FLOW, FREQUENCY RANGES, HIGH FREQUENCIES, NOISE PROPAGATION, Vonglahn, U., Krejsa, E. A

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