Skip to Main content Skip to Navigation
Conference papers

Stochastic reduced-order model for dynamical structures with high modal density in the low-frequency range

Abstract : The problem considered here concerns the construction of a stochastic reduced-order model for dynamical structures having a high modal density in the low frequency range. The classical methods used for the low-frequency range to construct a reduced-order model are not adapted in this case. We then use a recently proposed method which consists in constructing a basis of the global displacements and a basis of the local displacements by solving two separate eigenvalue problems. We then construct a stochastic reduced-order model using the basis of the global displacements and the contribution of the local displacements is taken into account using a probabilistic approach. The theory is presented and is applied to tube bundles structures which is are quasi-periodic structures for which the dynamical response is characterized by ensemble (global) displacements and more local displacements.
Complete list of metadatas

Cited literature [5 references]  Display  Hide  Download

https://hal-upec-upem.archives-ouvertes.fr/hal-00698750
Contributor : Christian Soize <>
Submitted on : Thursday, May 17, 2012 - 6:17:36 PM
Last modification on : Thursday, March 19, 2020 - 11:52:03 AM
Long-term archiving on: : Saturday, August 18, 2012 - 2:22:19 AM

File

conference-2012-Uncertainties-...
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00698750, version 1

Collections

Citation

Anas Batou, Christian Soize. Stochastic reduced-order model for dynamical structures with high modal density in the low-frequency range. 1st International Symposium on Uncertainty Quantification and Stochastic Modeling (Uncertainties 2012), Feb 2012, Maresias, SP, Brazil. pp.1-6. ⟨hal-00698750⟩

Share

Metrics

Record views

392

Files downloads

99