1. Repositório Institucional - Universidade Federal de Uberlândia
  2. Faculdade de Engenharia Mecânica (FEMEC)
  3. TCC - Engenharia Aeronáutica
Please use this identifier to cite or link to this item: https://repositorio.ufu.br/handle/123456789/28153
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dc.creatorSousa, Marcela Andréa Teodoro-
dc.date.accessioned2020-01-06T17:44:33Z-
dc.date.available2020-01-06T17:44:33Z-
dc.date.issued2019-12-18-
dc.identifier.citationSOUSA, Marcela Andréa Teodoro. Abordagem baseada em ISHM para detecção de falha em uma máquina rotativa com eixo de material compósito. 2019. 30 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Aeronáutica) - Universidade Federal de Uberlândia, Uberlândia, 2020.pt_BR
dc.identifier.urihttps://repositorio.ufu.br/handle/123456789/28153-
dc.description.sponsorshipFAPEMIG - Fundação de Amparo a Pesquisa do Estado de Minas Geraispt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Uberlândiapt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectMonitoramento de integridade estruturalpt_BR
dc.subjectMáquina rotativapt_BR
dc.subjectImpedância eletromecânicapt_BR
dc.subjectEixo de material compósitopt_BR
dc.titleAbordagem baseada em ISHM para detecção de falha em uma máquina rotativa com eixo de material compósitopt_BR
dc.typeTrabalho de Conclusão de Cursopt_BR
dc.contributor.advisor1Cavalini Junior, Aldemir Aparecido-
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/0387727577180664pt_BR
dc.creator.Latteshttp://lattes.cnpq.br/7472314036398850pt_BR
dc.description.degreenameTrabalho de Conclusão de Curso (Graduação)pt_BR
dc.description.resumoComposite shafts have been showing promising results when applied to rotating machines due to its low weight/strength ratio and good fatigue resistance. Despite the advantages in comparison to more traditional materials, composites present different types of damage that are difficult to detect. Therefore, it is necessary to use monitoring techniques to detect incipient damages and prevent failure. So, this work evaluates the structural health monitoring method based on electromechanical impedance (ISHM) applied in a rotating machine with a composite shaft. This methodology uses the piezoelectric transducers bonded to the host structure as sensor and actuator to detect damage by monitoring changes in its electric impedance. Usually, the evaluation of the impedance responses is performed by applying damage metrics, which allows the quantification of the influence of damage. This is possible since the sensor’s electrical impedance is directly related to the mechanical impedance of the structure. For this investigation, two sensors (each one with four piezoelectric patches connected in parallel) were attached to the composite shaft. To simulate the damage condition, a nut was attached in different positions on the shaft. Also, in order to increase the robustness of the ISHM technique, the effects of the rotation speed of the rotor and temperature variation were evaluated. Additionally, a data normalization based on a hybrid optimization method associated with a given damage metric is used to minimize these influences.pt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.courseEngenharia Aeronáuticapt_BR
dc.sizeorduration30pt_BR
dc.subject.cnpqCNPQ::ENGENHARIAS::ENGENHARIA MECANICA::MECANICA DOS SOLIDOSpt_BR
dc.orcid.putcode66877034-
Appears in Collections:TCC - Engenharia Aeronáutica

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