 |
HAL UPEC - UPEM Portal |  |
 |
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 Connect in order to contact the contributor
Submitted on : Thursday, May 17, 2012 - 6:17:36 PM
Last modification on : Tuesday, October 19, 2021 - 1:38:35 PM
Long-term archiving on: : Saturday, August 18, 2012 - 2:22:19 AM
Contributor : Christian Soize Connect in order to contact the contributor
Submitted on : Thursday, May 17, 2012 - 6:17:36 PM
Last modification on : Tuesday, October 19, 2021 - 1:38:35 PM
Long-term archiving on: : Saturday, August 18, 2012 - 2:22:19 AM
File
conference-2012-Uncertainties-...
Files produced by the author(s)