Nonlinear system identification in structural dynamics: 10 more years of progress

JP Noël, G Kerschen - Mechanical Systems and Signal Processing, 2017 - Elsevier
Nonlinear system identification is a vast research field, today attracting a great deal of
attention in the structural dynamics community. Ten years ago, an MSSP paper reviewing …

[HTML][HTML] Identification of backbone curves of nonlinear systems from resonance decay responses

JM Londoño, SA Neild, JE Cooper - Journal of Sound and Vibration, 2015 - Elsevier
Backbone curves can offer valuable insight into the behaviour of nonlinear systems along
with significant information about any coupling between the underlying linear modes in their …

Experimental modal analysis of nonlinear systems by using response-controlled stepped-sine testing

T Karaağaçlı, HN Özgüven - Mechanical Systems and Signal Processing, 2021 - Elsevier
Although the identification and analysis of structures with a localized nonlinearity, either
weak or strong, is within reach, identification of multiple nonlinearities coexisting at different …

Bayesian model updating and class selection of a wing-engine structure with nonlinear connections using nonlinear normal modes

M Song, L Renson, B Moaveni, G Kerschen - Mechanical Systems and …, 2022 - Elsevier
This paper presents a Bayesian model updating and model class selection approach based
on nonlinear normal modes (NNMs). The performance of the proposed approach is …

Complex dynamics of a nonlinear aerospace structure: experimental identification and modal interactions

JP Noël, L Renson, G Kerschen - Journal of Sound and Vibration, 2014 - Elsevier
Nonlinear system identification is a challenging task in view of the complexity and wide
variety of nonlinear phenomena. The present paper addresses the identification of a real-life …

[HTML][HTML] Periodic responses of a structure with 3: 1 internal resonance

AD Shaw, TL Hill, SA Neild, MI Friswell - Mechanical Systems and Signal …, 2016 - Elsevier
This work presents a conceptually simple experiment consisting of a cantilever beam with a
nonlinear spring at the tip. The configuration allows manipulation of the relative spacing …

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

L Renson, JP Noël, G Kerschen - Nonlinear Dynamics, 2015 - Springer
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 …

Experimental quantification and validation of modal properties of geometrically nonlinear structures by using response-controlled stepped-sine testing

T Karaağaçlı, HN Özgüven - Experimental Mechanics, 2022 - Springer
Background Various nonlinear system identification methods applicable to distributed
nonlinearities have been developed over the last decade. However, many of them are not …

[HTML][HTML] Identification of systems containing nonlinear stiffnesses using backbone curves

JM Londoño, JE Cooper, SA Neild - Mechanical Systems and Signal …, 2017 - Elsevier
This paper presents a method for the dynamic identification of structures containing discrete
nonlinear stiffnesses. The approach requires the structure to be excited at a single resonant …

[HTML][HTML] Fast Bayesian identification of a class of elastic weakly nonlinear systems using backbone curves

TL Hill, PL Green, A Cammarano, SA Neild - Journal of sound and vibration, 2016 - Elsevier
This paper introduces a method for the identification of the parameters of nonlinear
structures using a probabilistic Bayesian framework, employing a Markov chain Monte Carlo …