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A brief comment on the dynamical behavior of a forced nonlinear slewing beam: 1. Superharmonic resonance
(Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, 2005-06)
This paper describes the dynamical behavior of a nonlinear flexible beam (cubic nonlinearities considered) connected to a dc motor (responsible for the slewing motion) when the angular displacement of the slewing axis and ...
Dynamical behavior and optimization of a nonlinear vibration absorber
(2016-10-01)
The paper concerns the introduction of cubic nonlinearity into a vibration absorber to improve its effectiveness. The nonlinear stiffness is offered by a thin clamped circular plate which undergoes large flexural deflection. ...
Influence of structural nonlinearities in stall-induced aeroelastic response of pitching airfoils
(European Assoc Structural Dynamics, 2015)
Non-parametric identification of a non-linear buckled beam using discrete-time Volterra Series
(European Assoc Structural Dynamics, 2014-01-01)
The consideration of nonlinearities in mechanical structures is a question of high importance because several common features as joints, large displacements and backlash may give rise to these kinds of phenomena. However, ...
Nonlinearities and financial contagion in Latin American stock markets
(Elsevier, 2015)
We use the Hinich (1996) portmanteau bicorrelation test to graphically represent nonlinear events detected in Latin American stock markets. We identity the starting, the ending, the intensity, and the persistence of nonlinear ...
Damage detection in an uncertain nonlinear beam based on stochastic Volterra series: An experimental application
(2019-08-01)
The damage detection problem becomes a more difficult task when the intrinsically nonlinear behavior of the structures and the natural data variation are considered in the analysis because both phenomena can be confused ...
Nonlinear reduced-order modeling and bifurcation analysis of whirl flutter in a rotor-nacelle system
(2020-01-01)
Whirl flutter is an aeroelastic instability that can be affected by structural or/and aerodynamic nonlinearities. This instability may lead to potentially dangerous behaviors. In this study, a nonlinear reduced-order model ...
Optimization of a self-centering frictional damper (SCFD) and its application to non-linear structures
(2019)
Self-centering dissipating devices have been developed in the last decades to both mitigate seismic response and reduce residual drifts of structures. Recent large magnitude earthquakes have shown that most of the repair ...
Full modeling of the mooring non-linearity in a two-dimensional floating structure
(Pergamon-Elsevier Science Ltd, 2006-01-05)
The dynamic behavior of a two-dimensional model of a small floating structure anchored by chains is analyzed. The structure is first modeled as a two-degrees-of-freedom oscillator with a strongly non-linear stiffness and ...
Non-parametric identification of a non-linear buckled beam using discrete-time Volterra Series
(European Assoc Structural Dynamics, 2015)