The influence of uncertainties in periodic structures for vibro-acoustic problems

J. Henneberg, J. S. Gomez Nieto, K. Sepahvand, A. Gerlach, H. Cebulla, S. Marburg

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

Abstract

Periodic structures have recently received significant attention in the field of vibro-acoustics. Based on periodic resonant structures, stop band materials can be attained. The purpose is to generate structures with particular dynamic behavior in order to attenuate wave propagation within certain frequency ranges. To transfer the promising results achieved in science during the last years to a broad band of applications in industry, it is necessary to quantify the influence of uncertainties in periodic structures. In this study, the influence of geometrical and material uncertainties on periodic structures is investigated. Therefore, a finite element model of an epoxy plate with beam resonators is developed. The behavior of stop band material with uncertain input parameters is studied based on non-sampling stochastic methods. The results are used to show the necessity of taking uncertainties in periodic structures into account. The performed stochastic simulations are suitable to define manufacturing tolerances for the production of stop band material.

Original languageEnglish
Title of host publicationProceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics
EditorsD. Moens, W. Desmet, B. Pluymers, W. Rottiers
PublisherKU Leuven - Departement Werktuigkunde
Pages3059-3069
Number of pages11
ISBN (Electronic)9789073802995
StatePublished - 2018
Event28th International Conference on Noise and Vibration Engineering, ISMA 2018 and 7th International Conference on Uncertainty in Structural Dynamics, USD 2018 - Leuven, Belgium
Duration: 17 Sep 201819 Sep 2018

Publication series

NameProceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics

Conference

Conference28th International Conference on Noise and Vibration Engineering, ISMA 2018 and 7th International Conference on Uncertainty in Structural Dynamics, USD 2018
Country/TerritoryBelgium
CityLeuven
Period17/09/1819/09/18

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