Free vibrations of an uncertain energy pumping system - Archive ouverte HAL Access content directly
Journal Articles Journal of Sound and Vibration Year : 2013

Free vibrations of an uncertain energy pumping system

Edson Cataldo
  • Function : Author
  • PersonId : 885597
Sergio Bellizzi
Rubens Sampaio
  • Function : Author
  • PersonId : 864067

Abstract

The aim of this paper is to study the energy pumping (the irreversible energy transfer from one structure, linear, to another structure, nonlinear) robustness considering the uncertainties of the parameters of a two DOF mass-spring-damper, composed of two subsystems, coupled by a linear spring: one linear subsystem, the primary structure, and one nonlinear subsystem, the so-called NES (nonlinear energy sink). Three parameters of the system will be considered as uncertain: the nonlinear stiffness and the two dampers. Random variables are associated to the uncertain parameters and probability density functions are constructed for the random variables applying the Maximum Entropy Principle. A sensitivity analysis is then performed, considering different levels of dispersion, and conclusions are obtained about the influence of the uncertain parameters in the robustness of the system.
Fichier principal
Vignette du fichier
final_revised_paper_july.pdf (4.45 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00877548 , version 1 (28-10-2013)

Identifiers

Cite

Edson Cataldo, Sergio Bellizzi, Rubens Sampaio. Free vibrations of an uncertain energy pumping system. Journal of Sound and Vibration, 2013, 332 (25), pp.6815--6828. ⟨10.1016/j.jsv.2013.08.022⟩. ⟨hal-00877548⟩
101 View
265 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More