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Nonparametric stochastic modeling of structural dynamic systems with uncertain boundary conditions

Abstract : The focus of this investigation is on the formulation and validation of a novel approach for the inclusion of uncertainty in the modeling of the boundary conditions of linear structures and of the coupling between linear substructures. First, a mean structural dynamic model that includes boundary condition/coupling flexibility is obtained using classical substructuring concepts. The application of the nonparametric stochastic modeling approach to this mean model is next described and thus permits the consideration of both model and parameter uncertainty. Finally, a dedicated identification procedure is proposed to estimate the two parameters of this stochastic model, i.e. the mean boundary condition /coupling flexibility and the overall level of uncertainty.
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https://hal-upec-upem.archives-ouvertes.fr/hal-00691355
Contributor : Christian Soize <>
Submitted on : Thursday, April 26, 2012 - 9:24:30 AM
Last modification on : Thursday, March 19, 2020 - 11:52:03 AM
Long-term archiving on: : Friday, July 27, 2012 - 2:23:25 AM

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  • HAL Id : hal-00691355, version 1

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M. P. Mignolet, Christian Soize. Nonparametric stochastic modeling of structural dynamic systems with uncertain boundary conditions. AIAA Conference 2008, AIAA, Apr 2008, Schaumburg (Chicago), Illinois, United States. pp.1-12. ⟨hal-00691355⟩

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