Complex dynamics of a nonlinear aerospace structure: numerical continuation and normal modes

Ludovic Renson, J. P. Noël, G. Kerschen

Research output: Contribution to journalArticle (Academic Journal)peer-review

32 Citations (Scopus)
260 Downloads (Pure)

Abstract

This paper investigates the dynamics of a real-life aerospace structure possessing a strongly nonlinear component with multiple mechanical stops. A full-scale finite element model is built for gaining additional insight into the nonlinear dynamics that was observed experimentally, but also for uncovering additional nonlinear phenomena, such as quasiperiodic regimes of motion. Forced/unforced, damped/undamped numerical simulations are carried out using advanced techniques and theoretical concepts such as numerical continuation and nonlinear normal modes.
Original languageEnglish
Pages (from-to)1293-1309
Number of pages17
JournalNonlinear Dynamics
Volume79
Issue number2
Early online date12 Oct 2014
DOIs
Publication statusPublished - Jan 2015

Keywords

  • Aerospace structure
  • Modal interactions
  • Nonlinear normal modes
  • Numerical continuation
  • Piecewise-linear nonlinearities

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