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Energy-density field approach for low- and medium-frequency vibroacoustic analysis of complex structures using a statistical computational model

Abstract : In this paper, an energy-density field approach applied to the vibroacoustic analysis of complex industrial structures in the low- and medium-frequency ranges is presented. This approach uses a statistical computational model. The analyzed system consists of an automotive vehicle structure coupled with its internal acoustic cavity. The objective of this paper is to make use of the statistical properties of the frequency response functions of the vibroacoustic system observed from previous experimental and numerical work. The frequency response functions are expressed in terms of a dimensionless matrix which is estimated using the proposed energy approach. Using this dimensionless matrix, a simplified vibroacoustic model is proposed. (C) 2009 Elsevier Ltd. All rights reserved.
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M. Kassem, Christian Soize, L. Gagliardini. Energy-density field approach for low- and medium-frequency vibroacoustic analysis of complex structures using a statistical computational model. Journal of Sound and Vibration, Elsevier, 2009, 323 (3-5), pp.849-863. ⟨10.1016/j.jsv.2009.01.014⟩. ⟨hal-00684343⟩

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