{"title":"On the Possibility of Three-Dimensional Localization of Airframe Noise Sources Using Sequential Asynchronous Microphone Array Measurements","authors":"O. P. Bychkov, M. A. Demyanov","doi":"10.1134/S1063771024601857","DOIUrl":null,"url":null,"abstract":"<div><p>The article presents the results of using a previously developed method for three-dimensional localization of acoustic sources based on data from asynchronous measurements with a multimicrophone array from various positions, adapted for dipole-type sources characteristic of airframe noise. The article consists of two parts. In the first, the developed method was verified using the example of localization of test dipole sources. Sources with different orientations of the dipole moment with respect to the edges of the microphone array are considered. Based on the results of localizing test sources, it is shown that a dihedral array, the faces of which are parallel to the dipole moment of the source, allows more accurate identification of a dipole source in three-dimensional space compared to the general case. In the second part, the method is used to construct three-dimensional noise-source localization maps of a small-scale high-lift wing model with imitation of extended landing gear, which has a complex structure of dipole sources with various amplitudes and directions. The obtained volumetric localization maps in various frequency bands were analyzed by comparing such localization with test cases, and the possibility of localizing sources in this case was shown.</p></div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 3","pages":"422 - 433"},"PeriodicalIF":1.2000,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acoustical Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063771024601857","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ACOUSTICS","Score":null,"Total":0}
引用次数: 0
Abstract
The article presents the results of using a previously developed method for three-dimensional localization of acoustic sources based on data from asynchronous measurements with a multimicrophone array from various positions, adapted for dipole-type sources characteristic of airframe noise. The article consists of two parts. In the first, the developed method was verified using the example of localization of test dipole sources. Sources with different orientations of the dipole moment with respect to the edges of the microphone array are considered. Based on the results of localizing test sources, it is shown that a dihedral array, the faces of which are parallel to the dipole moment of the source, allows more accurate identification of a dipole source in three-dimensional space compared to the general case. In the second part, the method is used to construct three-dimensional noise-source localization maps of a small-scale high-lift wing model with imitation of extended landing gear, which has a complex structure of dipole sources with various amplitudes and directions. The obtained volumetric localization maps in various frequency bands were analyzed by comparing such localization with test cases, and the possibility of localizing sources in this case was shown.
期刊介绍:
Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.