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Design and Analysis of Solar Tracking System Using Coupled Multi-physics Fields Based on Opto-thermo Electro Mechanical Actuators
, M.Sc. Thesis Sharif University of Technology ; Vesaghi, Mohammad Ali (Supervisor) ; Zabihollah, Abolghasem (Co-Advisor)
Abstract
Photostrictive type of opto-thermo-electro-mechanical materials, called PbLaZrTi (PLZT), are a recently emerged family of smart materials, that are able to generate strains under illumination of near violet light and attract much attention in a variety of wireless and remote control applicati-ons, including the areas of material science and engineering, micro-electro-mechanical system (MEMS) and Optical MEMS, and smart structures. This research presents an analytical and finite element investigation into ultraviolet photo-induced multi-physics responses of 0-3 polarized PLZT photocantilever and a comparison of the measured bending displacement. The finite element formulation of the...
Design and analysis of an innovative light tracking device based on opto-thermo-electro-mechanical actuators
, Article Microelectronic Engineering ; Vol. 119 , May , 2014 , pp. 37-43 ; ISSN: 01679317 ; Zabihollah, A ; Vesaghi, M ; Kolbadinejad, M ; Sharif University of Technology
Abstract
This research presents an application of transparent lanthanum-modified lead zirconate titanate (PLZT) materials in micro light source tracking device, which is designed to function as a result of irradiation, having neither lead wires nor electric circuits. The focus of the paper is on the analytical and finite element investigation into ultraviolet photo-induced multi-physics responses of PLZT photocantilever and a comparison of the measured bending displacement to check the feasibility of these materials in design of micro light source tracking device. The finite element formulation of the transverse deflection for multi-physics analysis of PLZT ceramics by including the photovoltaic and...