An Examination of the ThermopiezoelectricEffect in Piezoelectric Actuators Via Finite Elements

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dc.contributor.advisorOrszulik, Ryan
dc.contributor.authorToledo, Rafael Chaves
dc.date.accessioned2023-12-08T14:51:30Z
dc.date.available2023-12-08T14:51:30Z
dc.date.issued2023-12-08
dc.date.updated2023-12-08T14:51:29Z
dc.degree.disciplineEarth & Space Science
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractThe application of piezoelectric actuators in smart structures is a rapidly developing field, especially in aerospace environments. Since thermal effects play an important role in aerospace environments, thermopiezoelectricity has been studied as it takes into account the thermal field in addition to the mechanical and electrical fields. As a result, the coupling effects among these three fields have to be considered, including the pyroelectric (change in the electric potential due to the presence of a thermal field) and electrocaloric (change in the temperature when an electric field is applied) effects. This thesis presents an examination of how these coupled effects can affect the performance of piezoelectric bender and stack actuators in varying external environments. More specifically, this thesis investigates the influence of the pyroelectric and electrocaloric effects on the positioning and dynamic performance of these actuators in static and dynamic cases by using a custom written finite element code that considers the three fully coupled field equations of thermopiezoelectricity.
dc.identifier.urihttps://hdl.handle.net/10315/41794
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectAerospace engineering
dc.subjectEngineering
dc.subjectMechanical engineering
dc.subject.keywordsThermopiezoelectricity
dc.subject.keywordsPiezoelectric actuators
dc.subject.keywordsBender
dc.subject.keywordsStack
dc.subject.keywordsTemperature-dependent piezoelectric strain coefficient
dc.titleAn Examination of the ThermopiezoelectricEffect in Piezoelectric Actuators Via Finite Elements
dc.typeElectronic Thesis or Dissertation

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