On uncertainty quantification in vibroacoustic problems

K. Sepahvand, S. Marburg

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

In this paper, we employ non-sampling techniques for numerical simulation of vibroacoustic problems including uncertain material parameters. The uncertain parameters are represented using the Karhunen-Loève expansion and structural stochastic responses are approximated by means of generalized polynomial chaos expansion with deterministic unknown coefficients. The non-intrusive stochastic FEM is implemented calculate the unknown coefficients by generating samples of parameters for a deterministic FEM code. The numerical procedure has this potential to use commercial FEM codes as black box to discretize the spatial deterministic space and easy to apply in complex industrial problems. Efficiency of the method in comparison with the experimental results is studied.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014
EditorsA. Cunha, P. Ribeiro, E. Caetano, G. Muller
PublisherEuropean Association for Structural Dynamics
Pages3259-3263
Number of pages5
ISBN (Electronic)9789727521654
StatePublished - 2014
Externally publishedYes
Event9th International Conference on Structural Dynamics, EURODYN 2014 - Porto, Portugal
Duration: 30 Jun 20142 Jul 2014

Publication series

NameProceedings of the International Conference on Structural Dynamic , EURODYN
Volume2014-January
ISSN (Print)2311-9020

Conference

Conference9th International Conference on Structural Dynamics, EURODYN 2014
Country/TerritoryPortugal
CityPorto
Period30/06/142/07/14

Keywords

  • Non-intrusive method
  • Stochastic FEM
  • Uncertainty quantification
  • Vibroacoustic

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