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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.
Cited literature [5 references]
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 : Wednesday, February 17, 2021 - 10:42:04 AM
Long-term archiving on: : Saturday, August 18, 2012 - 2:22:19 AM
Contributor : Christian Soize <>
Submitted on : Thursday, May 17, 2012 - 6:17:36 PM
Last modification on : Wednesday, February 17, 2021 - 10:42:04 AM
Long-term archiving on: : Saturday, August 18, 2012 - 2:22:19 AM
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