Bi-regularization enhanced azimuthal mode analysis method for the aero-engine fan

Azimuthal mode analysis is regarded as an effective tool for aero-engine flow field investigation, where numerous microphones are evenly mounted as a ring to provide sufficient spatial resolution for azimuthal pressure acquisition. The current compressive sampling method enables azimuthal modes to b...

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Veröffentlicht in:	Mechanical systems and signal processing 2022-05, Vol.171, p.108921, Article 108921
Hauptverfasser:	Li, Zepeng, Qiao, Baijie, Wen, Bi, Liu, Junjiang, Chen, Xuefeng
Format:	Artikel
Sprache:	eng
Schlagworte:	Accuracy Acoustic measurement Aerospace engines Amplitudes Azimuthal mode analysis Compressive sampling Field investigations Fourier transforms Lp-norm Microphones Regularization Sampling methods Signal processing Spatial resolution Tikhonov regularization
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