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Updating of a nonlinear finite element model using discrete-time volterra series
(2017-01-01)
In this study, the discrete-time Volterra series are used to update parameters in a nonlinear finite element model. The main idea of the Volterra series is to describe the discrete-time output of a nonlinear system using ...
Efficient solution of nonlinear model predictive control by a restricted enumeration method
(Universidad UTE, 2018)
Characterization and interaction of geometric and contact/impact nonlinearities in dynamical systems
(2022-03-15)
In this work, we study how a contact/impact nonlinearity interacts with a geometric cubic nonlinearity in an oscillator system. Specific focus is shown to the effects on bifurcation behavior and secondary resonances (i.e., ...
ON THE NONLINEAR ESTIMATION OF GARCH MODELS. USING AN EXTENDED KALMAN FILTER
(INTERNATIONAL ASSOCIATION OF ENGINEERS, 2011)
A new mathematical representation, based on a
discrete-time nonlinear state space formulation, is presented
to characterize a Generalized Auto Regresive Conditional Heteroskedasticity
(GARCH) model. Nonlinear parameter ...
Penalty-based nonlinear solver for optimal reactive power dispatch with discrete controls
(2013-04-15)
The optimal reactive dispatch problem is a nonlinear programming problem containing continuous and discrete control variables. Owing to the difficulty caused by discrete variables, this problem is usually solved assuming ...
Nonlinear dynamical analysis of an aeroelastic system with multi-segmented moment in the pitch degree-of-freedom
(Elsevier B.V., 2015-01-01)
The effects of a multi-segmented nonlinearity in the pitch degree of freedom on the behavior of a two-degree of freedom aeroelastic system are investigated. The aeroelastic system is free to plunge and pitch and is supported ...
Penalty-based nonlinear solver for optimal reactive power dispatch with discrete controls
(2013-04-15)
The optimal reactive dispatch problem is a nonlinear programming problem containing continuous and discrete control variables. Owing to the difficulty caused by discrete variables, this problem is usually solved assuming ...
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, ...
NOnlinearity detection and identification using discrete-time volterra series: Application to a solar array structure
(2015-01-01)
The aim of this paper is to identify a nonlinear model using time responses obtained from a sine sweep excitation applied to a simplif ied solar array structure. The nonlinearity is mainly caused by impacts, gaps and ...
High-static-low-dynamic-stiffness vibration isolation enhanced by damping nonlinearity
(2018-01-01)
High-static-low-dynamic-stiffness (HSLDS) nonlinear isolators have proven to have an advantage over linear isolators, because HSLDS nonlinear isolators allow low-frequency vibration isolation without compromising the static ...