Atuadores Piezoelatricos
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Projeto, construÃÃo e caracterizaÃÃo de um amortecedor ativo controlado por atuador piezoelÃtrico / Design, construction and characterization controlled by Piezoelectric Actuato
This thesis presents the design methodology, the construction of a prototype and the experimental validation of an active vibration damper witch is controlled by a piezoelectric actuator. The proposed device has two flexible metallic bellows connected to a rigid reservoir filled with a viscous fluid. When one of the bellows is connected to a vibrating struct
Publicado em: 2007
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2. Modelagem por elementos finitos de placas compostas dotadas de sensores e atuadores piezoelÃtricos : implementaÃÃo computacional e avaliaÃÃo numÃrica / Finite element modeling of composite plates incorporating piezoelectric sensors and actuators: implementation and numerical assessment
This Dissertation presents a methodology based on the Finite Element method for the modeling of laminated composite beams and plates containing piezoelectric sensors and actuators. The fundamental concepts and the theoretical developments are presented, followed by a number of numerical simulations performed in MATLABÂ environment. The finite element used i
Publicado em: 2006
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3. A three layer quasi 3D finite element model for structural analysis of sandwich plates.
A three-layer finite element model for the analysis of sandwich plates with laminated composite face-sheets is evaluated. In the model, the face-sheets are represented as Reissner-Mindlin plates and the core is modeled as a three-dimensional continuum. This representation allows accurate modeling for a wide range of core types. The three-dimensional problem
Publicado em: 2002
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4. VibraÃÃo de placas laminadas na presenÃa de tensÃes induzidas piezoeletricamente.
Este trabalho apresenta uma formulaÃÃo variacional consistente para a modelagem de placas laminadas com atuadores piezoelÃtricos. Um programa computacional de elementos finitos para anÃlise de placas laminadas minidas de atuadores piezoelÃtricos incluindo efeitos de enrigecimento por tensÃo, foi adaptado para projetar os experimentos de validaÃÃo da
Publicado em: 2000