Piezoelectric Sensors And Actuators
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Modelagem por elementos finitos de placas compostas dotadas de sensores e atuadores piezoelétricos : implementação computacional e avaliação numérica / Finite element modeling of composite plates incorporating piezoelectric sensors and actuators: implementation and numerical assessment
Esta dissertação apresenta uma metodologia baseada no Método dos Elementos Finitos (MEF) para a modelagem de estruturas compostas laminadas do tipo viga e placa dotadas de sensores e atuadores piezoelétricos. Os conceitos fundamentais e o desenvolvimento teórico são apresentados, seguidos de simulações numéricas realizadas em ambiente MATLAB para a
Publicado em: 2006
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14. Finite element modeling of a plate with localized piezoelectric sensors and actuators
This paper presents the numerical modeling of a plate structure containing bonded piezoelectric material. Hamilton's principle is employed to derive the finite element equations using the mechanical energy of the structure and the electrical energy of the piezoelectric material. Then, a numerical model is developed based on Kirchhoff's plate theory. A comput
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-06
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15. Fuzzy logic for non-conventional control of an intelligent beam. / Lógica difusa para controle não convencional de uma viga inteligente.
The advances in aeronautical industry have been ensured by the application of novel technologies. For aeroelastic control the intelligent structure concept has become increasingly important. An intelligent structure is a structural control system in which structural elements, sensors, actuators, control laws, associated electronics, and signal processing are
Publicado em: 2001
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16. Uma metodologia de projeto de controladores híbridos inteligentes com aplicações no controle ativo de vibrações mecânicas / A design methodology of intelligent hybrid controllers with applications to the active vibrations control in mechanical systems
This work proposes a design methodology of fuzzy controllers for systems that do not offer any intuitive information to the control designer, in order to provide guidelines to construct the fuzzy conventional controllers. The design methodology involves the application of artificial intelligence techniques, where the fuzzy controllers are obtained by an opti
Publicado em: 2001
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17. CONTRÔLE HYBRIDE ACTIFPASSIF DES VIBRATIONS DE STRUCTURES PAR DES MATÉRIAUX PIÉZOÉLECTRIQUES ET VISCOÉLASTIQUES : POUTRES SANDWICH/MULTICOUCHES INTELLIGENTES
This thesis presents a numerical analysis of the structural vibrations damping obtained by passive, active and hybrid active-passive damping treatments. For that, a finite element model of a sandwich beam which layers can be elastic, piezoelectric or viscoelastic is presented. It is validated through comparisons with analytical, experimental and numerical re
Publicado em: 2000