INVESTIGADORES
CAVALIERI Federico Jose
artículos
Título:
A robust nonsmooth generalized-alpha scheme for flexible systems with impacts
Autor/es:
COSIMO ALEJANDRO; GALVEZ JAVIER; CAVALIERI FEDERICO J.; CARDONA ALBERTO; BRÜLS OLIVIER
Revista:
MULTIBODY SYSTEM DYNAMICS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2019
ISSN:
1384-5640
Resumen:
The aim of this work is the development of a robust and accurate time integrator for the simulation of the dynamics of multibody systems composed by rigid and/or flexible bodies subject to frictionless contacts and impacts. The integrator is built upon a previously developed nonsmooth generalized-alpha scheme time integrator which was ableto deal well with nonsmooth dynamical problems avoiding any constraint drift phenomena and capturing vibration effects without introducing too much numerical dissipation. However, when dealing with problems involving nonlinear bilateral constraints and/or flexible elements, it is necessary to adopt small time step sizes to ensure the convergence of the numerical scheme. In order to tackle these problems more efficiently, a fully decoupled version of the nonsmooth generalized-alpha method isproposed in this work, avoiding these inconveniences. Several examples are considered to assess its accuracy and robustness.
