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Robust Cascade Controller for Nonlinearly Actuated Biped Robots: Experimental Evaluation
(2004-06-26)
In this paper we consider the postural stability problem for nonlinearly actuated quasi-static biped robots, both with respect to the joint angular positions and also with reference to the gripping effect between the ...
Iterated non-linear model predictive control based on tubes and contractive constraints
(Elsevier Science Inc, 2016-05)
This paper presents a predictive control algorithm for non-linear systems based on successive linearizations of the non-linear dynamic around a given trajectory. A linear time varying model is obtained and the non-convex ...
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. ...
Nonlinear Regression Models Under Skew Scale Mixtures Of Normal Distributions
(Elsevier Science BVAmsterdam, 2016)
Asymptotic approach for the nonlinear equatorial long wave interactions
(2011-08-30)
In the present work we use an asymptotic approach to obtain the long wave equations. The shallow water equation is put as a function of an external parameter that is a measure of both the spatial scales anisotropy and the ...
Asymptotic approach for the nonlinear equatorial long wave interactions
(2011-08-30)
In the present work we use an asymptotic approach to obtain the long wave equations. The shallow water equation is put as a function of an external parameter that is a measure of both the spatial scales anisotropy and the ...
Bayesian nonlinear regression models with scale mixtures of skew-normal distributions: Estimation and case influence diagnostics
(ELSEVIER SCIENCE BV, 2011)
The purpose of this paper is to develop a Bayesian analysis for nonlinear regression models under scale mixtures of skew-normal distributions. This novel class of models provides a useful generalization of the symmetrical ...
Valve friction and nonlinear process model closed-loop identification
(ELSEVIER SCI LTD, 2011)
Among several process variability sources, valve friction and inadequate controller tuning are supposed to be two of the most prevalent. Friction quantification methods can be applied to the development of model-based ...
Effects of combined hardening and free-play nonlinearities on the response of a typical aeroelastic section
(2016-03-01)
This paper presents an investigation about the dynamic response of a three-degree of freedom airfoil with hardening nonlinearity in the pitching stiffness and free-play nonlinearity in the control surface stiffness using ...
Nonlinear dynamic numerical analysis of a RC frame subjected to seismic loading
(Elsevier, 2017-05)
In the context of seismic engineering, reliable modeling methodologies are needed to represent the nonlinear dynamic behavior of structures under the effect of the seismic action. Only in this way is it possible to assess ...