Non-Resonant Response Using Statistical Energy Analysis

Renji, K.; Nair, P.S.; Narayanan, S.

doi:10.1006/jsvi.2000.3270

Cited by 23 publications

(26 citation statements)

References 6 publications

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“…The radiation loss factor is theoretically estimated using equations (19) and (11) that are to follow, and it is shown in Figure 7. The radiation resistance of this plate was obtained experimentally and it matched well with the theoretical estimates [9]. At low frequencies, since the radiation loss factor is very much dependent on the boundary conditions, the theoretical estimates of the radiation loss factor values are not accurate.…”

Section: Dissipation Loss Factormentioning

confidence: 77%

“…Velocity of the non-resonant waves due to a di!use acoustic "eld can be determined using the equation [9] 1v…”

Section: Theoretical Estimation Of Responsementioning

confidence: 99%

“…Conventional SEA modelling does not predict the non-resonant response of the structure [9]. But the non-resonant response can be as signi"cant as resonant response, especially in the case of structural panels, at frequencies near and above the critical frequency.…”

Section: Introductionmentioning

confidence: 99%

“…But the non-resonant response can be as signi"cant as resonant response, especially in the case of structural panels, at frequencies near and above the critical frequency. Renji et al [9] derived an expression for the non-resonant response of a plate due to the di!use "eld and they also developed an alternate SEA modelling technique that predicts the non-resonant response of the structure.…”

Section: Introductionmentioning

confidence: 99%

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Response of a Plate to Diffuse Acoustic Field Using Statistical Energy Analysis

Renji

Nair

Narayanan

2002

Journal of Sound and Vibration

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Section: Dissipation Loss Factormentioning

confidence: 77%

“…Velocity of the non-resonant waves due to a di!use acoustic "eld can be determined using the equation [9] 1v…”

Section: Theoretical Estimation Of Responsementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Response of a Plate to Diffuse Acoustic Field Using Statistical Energy Analysis

Renji

Nair

Narayanan

2002

Journal of Sound and Vibration

Self Cite

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“…In the two-subsystem case for example, each subsystem requires at least two resonant modes [22]. The non-resonant response of a given subsystem in a coupled system can also be separately modelled within the framework of SEA as an extra subsystem with no resonant modes where the concept of modal density is not applicable [23]. Since this concept is not used in the determination of pa and ap as can be seen in Eqs.…”

Section: Resultsmentioning

confidence: 99%

Effects of sound radiation on Sabine absorption coefficient of modally-reactive panels

Sum

2005

Acoust. Sci. & Tech.

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A modally-reactive panel in a room absorbs and radiates sound at the same time when it is excited acoustically by the enclosed sound field. The absorption of sound occurs when only part of the incident sound is reflected by the panel, but when the entire panel vibrates, the radiation of sound is also produced. In this paper, Statistical Energy Analysis (SEA) is used to establish a relationship between the acoustic-structural coupling of the panel with the sound field and the Sabine absorption coefficient of the panel. It is shown that the coefficient does not only consist of the sound absorption by the panel from the room but also, the sound radiation from the vibrating panel back into the room. Computational and experimental examples are presented for different acoustical properties of the panel and the sound field to illustrate the extent of influence of the sound radiation on the coefficient. The results provide a basic understanding of the conditions in both cases where the sound radiation has significant effects and negligible effects on the determination of the Sabine absorption coefficient of modally-reactive panels in rooms.

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Statistical energy analysis of non-resonant response of isotropic and orthotropic plates

2007

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The conventional SEA model considers only the resonant part of the structural response to an acoustic excitation. Therefore, this study investigates non-resonant responses of isotropic and orthotropic plates to acoustically induced vibrations in a reverberationchamber. A modified SEA model is introducedto predict the non-resonant plate response. The estimated non-resonant and resonant responses are then compared with those obtained experimentally, and good agreement is observed for isotropic and orthotropic plates. For an isotropic plate with a small dissipation loss factor, when the non-resonant part is ignored, the estimated response can lead to significant errors at frequencies near and above the critical frequency, while large errors may occur at frequencies below the critical frequency for an orthotropic plate with a high dissipation loss factor. The experimental study indicates that the non-resonant response component should be included in the estimated responsesto enhance predictive accuracy.

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Non-Resonant Response Using Statistical Energy Analysis

Cited by 23 publications

References 6 publications

Response of a Plate to Diffuse Acoustic Field Using Statistical Energy Analysis

Response of a Plate to Diffuse Acoustic Field Using Statistical Energy Analysis

Effects of sound radiation on Sabine absorption coefficient of modally-reactive panels

Statistical energy analysis of non-resonant response of isotropic and orthotropic plates

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