Buscar
Mostrando ítems 1-10 de 43
On the calibration of Bouc-Wen model to describe the viscoelasticity in steady-state rolling tires
(Universidade Estadual Paulista (Unesp), 2022-05-13)
Reducing tire rolling resistance and energy loss is a topic of interest to the tire industry. Understanding and modeling these phenomena are essential to approach this problem and propose robust solutions. This work suggests ...
Harmonic Balance of Bouc-Wen Model to Identify Hysteresis Effects in Bolted Joints
(2021-01-01)
This chapter presents a new methodology through a harmonic balance method to identify the parameters to describe the hysteresis effect in bolted joints using the Bouc-Wen model. The main idea is to adopt a priori smoothing ...
Some practical regards on the application of the harmonic balance method for hysteresis models
(2020-09-01)
Describing hysteretic systems with a closed-form solution is a challenging task due to some pitfalls regarding the non-smooth and memory effect mechanisms that do not permit, for example, to apply conventional frequency ...
New contributions in the analysis and identification of mechanical systems with hysteresis
(Universidade Estadual Paulista (Unesp), 2021-07-31)
As estruturas que exibem comportamento de histerese podem apresentar efeitos dinâmicos complexos que restringem a aplicação de técnicas convencionais de identificação. Entre os vários sistemas nos quais estes efeitos estão ...
Modelos autorregressivos para representação de sistemas com histerese
(Universidade Federal de Minas GeraisUFMG, 2016-03-11)
Hysteresis is a highly nonlinear phenomenon commonly found in electromagnetic and electromechanical devices which involve memory efects among the output and the history of the process variables. In sensors and electromechanical ...
Compensação de não linearidades via modelos
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICAPrograma de Pós-Graduação em Engenharia ElétricaUFMG, 2020-12-11)
The presence of nonlinear effects imposes significant limitations on a wide range of systems. Notably, hysteresis is a hard nonlinearity that enforces challenges in the context of control. Aiming to overcome these issues, ...
Identificación de sistemas estructurales histeréticos usando algoritmos de optimización multi-objetivo
(2013)
La mayoría de la literatura referente a la estimación de parámetros de los modelos de histéresis de tipo Bouc-Wen por medio de algoritmos evolutivos no solo usa una función objetivo única (el error cuadrático medio entre ...
Bayesian model identification through harmonic balance method for hysteresis prediction in bolted joints
(2022-01-01)
Hysteresis is a nonlinear phenomenon present in many structures, such as those assembled by bolted joints. Despite a large number of recent findings related to identification techniques for these systems, the problem is ...
Identificación en marcos equipados con diagonales de pandeo restringido sometidos a daño sísmico
(Universidad de Chile, 2018)
Las diagonales de pandeo restringido son disipadores sísmicos compuestos por un núcleo de acero cubierto por un elemento que impide su pandeo. Esta condición permite que la histéresis asociada al elemento sea amplia, y con ...
Bayesian model identification of higher-order frequency response functions for structures assembled by bolted joints
(2021-04-01)
This paper proposes a procedure to identify a stochastic Bouc-Wen model for describing the dynamics of a structure assembled by bolted joints considering vibration data. The proposed identification approach is expressed ...