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Article Dans Une Revue Computers & Structures Année : 2018

Reduced-order modelling using nonlinear modes and triple nonlinear modal synthesis

Résumé

This paper introduces a novel reduced-order modelling technique well-suited to the study of nonlinear vibrations in large finite element models. The method combines the concepts of nonlinear complex modes and characteristic constraint modes – or interface modes – to build a fully algebraic reduced-order model easily solved by standard iterative solvers. The performance of the method is appraised on a nonlinear finite element model of bladed disk in the presence of structural mistuning, highlighting the potential of this new technique to deal with current industrial problematics.
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Dates et versions

hal-01800394 , version 1 (25-05-2018)

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Colas Joannin, Fabrice Thouverez, Benjamin Chouvion. Reduced-order modelling using nonlinear modes and triple nonlinear modal synthesis. Computers & Structures, 2018, 203, pp.18 - 33. ⟨10.1016/j.compstruc.2018.05.005⟩. ⟨hal-01800394⟩
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