Uncertainty propagation in the dynamics of a nonlinear random bar - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2013

Uncertainty propagation in the dynamics of a nonlinear random bar

Americo Cunha Jr
Rubens Sampaio
  • Fonction : Auteur
  • PersonId : 864067

Résumé

This work studies the dynamics of a one-dimensional elastic bar with random elastic modulus and prescribed boundary conditions, fixed at one end, and attached to a lumped mass and two springs (one linear and another nonlinear) on the other extreme, subjected to a Gaussian white noise external force. The system analysis uses the maximum entropy principle to specify the elastic modulus (gamma) probability distribution and uses Monte Carlo simulations to compute the propagation of uncertainty in this continuous–discrete system. After describing the deterministic and the stochastic modeling of the system, some configurations of the model are analyzed in order to characterize the effect of the lumped mass in the overall behavior of this dynamical system.
Fichier principal
Vignette du fichier
conf_diname2013.pdf (639.72 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01487347 , version 1 (11-03-2017)

Licence

Copyright (Tous droits réservés)

Identifiants

  • HAL Id : hal-01487347 , version 1

Citer

Americo Cunha Jr, Rubens Sampaio. Uncertainty propagation in the dynamics of a nonlinear random bar. XV International Symposium on Dynamic Problems of Mechanics (Diname 2013), Feb 2013, Buzios, Brazil. ⟨hal-01487347⟩

Collections

INSMI
101 Consultations
72 Téléchargements

Partager

Gmail Facebook X LinkedIn More