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

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

doi:10.1007/s11071-014-1743-0

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

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

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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 language	English
Pages (from-to)	1293-1309
Number of pages	17
Journal	Nonlinear Dynamics
Volume	79
Issue number	2
Early online date	12 Oct 2014
DOIs	https://doi.org/10.1007/s11071-014-1743-0
Publication status	Published - Jan 2015

Keywords

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

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10.1007/s11071-014-1743-0

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This is the author accepted manuscript (AAM). The final published version (version of record) is available online via Springer at http://link.springer.com/article/10.1007/s11071-014-1743-0. Please refer to any applicable terms of use of the publisher.
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AU - Noël, J. P.

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AB - 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.

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KW - Modal interactions

KW - Nonlinear normal modes

KW - Numerical continuation

KW - Piecewise-linear nonlinearities

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ER -

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

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Keywords

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