Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
DYNAMIC MODAL ANALYSIS BY CRAIG-BAMPTON METHOD
Submission Author:
Lidianne de Paula Pinto Mapa , MG
Co-Authors:
Lidianne de Paula Pinto Mapa, Francisco Neves, Artur Ladeira, Reinaldo Reis, Gustavo Paulinelli Guimarães
Presenter: Lidianne de Paula Pinto Mapa
doi://10.26678/ABCM.COBEM2019.COB2019-1746
Abstract
The Component-mode synthesis methods are applied to the finite element method in order to reduce the computational cost of dynamic analysis. This work aims at coupling reticulated structures by the Craig-Bampton method using an algorithm implemented in the matlab software. The internal degrees of freedom of each substructure were reduced and the substructures were coupled by degrees of freedom of contour. It was possible to observe that the method presents good precision in relation to the Finite Element Method and that a great reduction in the number of equations of the models is possible, which depends on the frequency range of interest.
Keywords
substructuring, Component mode synthesis, Craig-Bampton Method, Frequencies and mode shapes
