Aero-engine noise source identification based on microphone array DAMAS

Abstract

Abstract:

In order to implement noise source identification technique of a new generation engine，and to learn basic characteristics of aero-engine noise source,the noise data are processed with the component noise decomposition method. Basing on the noise data,the noise source identification system is developed;the beam forming method results processed with DAMAS are employed as intermediate sound source to obtain the required sound source information and to make the processed results more accurate. The engine noise data verifies the validity and feasibility of the microphone array technology and the noise identification system.

Key words: microphone array, noise measurement, sound identification, DAMAS

CLC Number:

YAN Guo-hua,REN Sheng,WANG Yu-chen. Aero-engine noise source identification based on microphone array DAMAS[J]. , 2013, 31(4): 10-14.

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Aero-engine noise source identification based on microphone array DAMAS

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