Aircraft Interior Noise

Wilby, J. F.

doi:10.1006/jsvi.1996.0078

Cited by 106 publications

(45 citation statements)

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“…The TBL induces vibrations on the fuselage skin, and the vibrating structure radiates noise into the aircraft cabin. Early experimental tests have been conducted as an effort to characterize the radiation of sound from single panels excited by the turbulent boundary layer [15][16][17][18][19]. These studies provide knowledge about the shape of the spectrum, convection velocity and space-time correlation of the TBL pressure fluctuations on aircraft panels, as well as displacement and acceleration spectra of the vibrating panels.…”

Section: Introductionmentioning

confidence: 99%

On the sensitivity of sound power radiated by aircraft panels to turbulent boundary layer parameters

Rocha

Palumbo

2012

Journal of Sound and Vibration

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Section: Introductionmentioning

confidence: 99%

On the sensitivity of sound power radiated by aircraft panels to turbulent boundary layer parameters

Rocha

Palumbo

2012

Journal of Sound and Vibration

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“…The control of low frequency audible air-borne noise produced by, for example, aircraft [1] or home appliances [2] is an important engineering task.…”

Section: Introductionmentioning

confidence: 99%

Experiments on the low frequency barrier characteristics of cellular metamaterial panels in a diffuse sound field

Varanasi

Bolton

Siegmund

2017

The Journal of the Acoustical Society of America

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The metamaterial under investigation here consists of a periodic arrangement of unit plates in a grid-like frame such that there is a contrast in the local areal mass between cell interior and cell wall. In the low frequency range and under normal incidence this metamaterial panel exhibits a sound transmission loss significantly larger than the transmission loss of an unstructured panel with the same homogeneous mass per unit area. However, when the incident sound field is diffuse, the relative advantage of the metamaterial barrier is reduced or eliminated. A sequence of experiments is documented to demonstrate that the relative advantage of the metamaterial barrier can be realized even in a diffuse sound field by creating a hybrid barrier system which embeds the metamaterial layer between a normalizing waveguide layer on the incident side and an absorbing layer on the transmitted side.The sound normalizing waveguide layer is a lattice structure, and the absorbing layer is high performance glass fiber mat. By using measurements of the transmission loss of a 1.2 m square panel system the role of each of these components is demonstrated.

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“…Realistic synthesis of interior aircraft sounds have received less attention, despite its high potential for flexible sound generation in flight simulators. Sources of noise in aircraft cabins were reviewed in [4], [5]. The primary sources are the aircraft engines and the turbulent boundary layer noise.…”

Section: Introductionmentioning

confidence: 99%

Spectral and Spatial Multichannel Analysis/Synthesis of Interior Aircraft Sounds

Verron

Gauthier

Langlois

et al. 2013

IEEE Trans. Audio Speech Lang. Process.

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A method for spectral and spatial multichannel analysis/synthesis of interior aircraft sounds is presented. We propose two extensions of the classical sinusoids+noise model, adapted to multichannel stationary sounds. First, a spectral estimator is described, using average information across channels for spectral peak detection. Second, the residual modeling is extended to integrate two interchannel spatial cues (i.e., coherence and phase difference). This approach allows real-time synthesis and control of sounds spectral and spatial characteristics. It finds applications for multichannel aircraft sound reproduction, and more generally for musical and environmental sound synthesis. The ability of the model to reproduce multichannel aircraft sounds is assessed by a numerical simulation.Index Terms-Aircraft sounds, analysis/synthesis, spatial sound, sinusoidal modeling, diffuse noise, interchannel coherence, interchannel phase difference, spectral envelope.

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Aircraft Interior Noise

Cited by 106 publications

References 0 publications

On the sensitivity of sound power radiated by aircraft panels to turbulent boundary layer parameters

On the sensitivity of sound power radiated by aircraft panels to turbulent boundary layer parameters

Experiments on the low frequency barrier characteristics of cellular metamaterial panels in a diffuse sound field

Spectral and Spatial Multichannel Analysis/Synthesis of Interior Aircraft Sounds

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