Skip to Main content Skip to Navigation
Journal articles

Reduced-order computational model in nonlinear structural dynamics for structures having numerous local elastic modes in the low-frequency range. Application to fuel assemblies

Abstract : We are interested in the construction of a reduced-order computational model for nonlinear complex dynamical structures which are characterized by the presence of numerous local elastic modes in the low-frequency band. This high modal density makes the use of the classical modal analysis method not suitable. Therefore the reduced-order computational model is constructed using a basis of a space of global displacements, which is constructed a priori and which allows the nonlinear dynamical response of the structure observed on the stiff part to be predicted with a good accuracy. The methodology is applied to a complex industrial structure which is made up of a row of seven fuel assemblies with possibility of collisions between grids and which is submitted to a seismic loading.
Complete list of metadatas

Cited literature [25 references]  Display  Hide  Download

https://hal-upec-upem.archives-ouvertes.fr/hal-00821274
Contributor : Christian Soize <>
Submitted on : Wednesday, May 8, 2013 - 1:26:07 PM
Last modification on : Thursday, March 19, 2020 - 11:52:03 AM
Long-term archiving on: : Friday, August 9, 2013 - 4:04:55 AM

File

publi-2013-NED-batou-soize-bri...
Files produced by the author(s)

Identifiers

Collections

Citation

Anas Batou, Christian Soize, N. Brie. Reduced-order computational model in nonlinear structural dynamics for structures having numerous local elastic modes in the low-frequency range. Application to fuel assemblies. Nuclear Engineering and Design, Elsevier, 2013, 262 (-), pp.276-284. ⟨10.1016/j.nucengdes.2013.04.039⟩. ⟨hal-00821274⟩

Share

Metrics

Record views

654

Files downloads

1034