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 …
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
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 …
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 …
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
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 …
on nonlinear normal modes (NNMs). The performance of the proposed approach is …
Complex dynamics of a nonlinear aerospace structure: experimental identification and modal interactions
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 …
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
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 …
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
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 …
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 …
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
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 …
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
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 …
structures using a probabilistic Bayesian framework, employing a Markov chain Monte Carlo …