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An energy-based automatic sub-structuring method in low- and medium-frequency ranges for uncertain computational vibroacoustic model
Abstract : An energy-based automatic sub-structuring method is proposed. The established energy formulation is applicable in the low- and medium-frequency ranges when using a stochastic vibroacoustic model. The idea evolved from recent work which aimed to take into account system parameters and model uncertainties in vibroacoustic modeling by applying a probabilistic approach of uncertainties. Numerical and experimental results showed statistical properties of the frequency response functions in low- and medium-frequency ranges in a stochastic context. Thus, although inspired from the Statistical Energy Analysis (SEA) method, the used energy formulation is a quite different method and it has the advantage of being applicable in low-frequency ranges where the SEA and its derivations fail to apply. The stochastic model is constructed using the non-parametric probabilistic approach. A simplified model is constructed based on the proposed energy formulation.
Cited literature [17 references]
https://hal-upec-upem.archives-ouvertes.fr/hal-00691745
Contributor : Christian Soize <>
Submitted on : Saturday, May 5, 2012 - 7:05:17 PM
Last modification on : Wednesday, February 17, 2021 - 10:42:04 AM
Long-term archiving on: : Friday, November 30, 2012 - 11:10:50 AM
Contributor : Christian Soize <>
Submitted on : Saturday, May 5, 2012 - 7:05:17 PM
Last modification on : Wednesday, February 17, 2021 - 10:42:04 AM
Long-term archiving on: : Friday, November 30, 2012 - 11:10:50 AM
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