Simulation of the dynamic behavior of the coffee fruit-stem system using finite element method

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSantos, Fábio Lúcio-
Autor(es): dc.creatorQueiroz, Daniel Marçal de-
Autor(es): dc.creatorValente, Domingos Sárvio Magalhães-
Autor(es): dc.creatorCoelho, André Luiz de Freitas-
Data de aceite: dc.date.accessioned2026-02-09T11:45:11Z-
Data de disponibilização: dc.date.available2026-02-09T11:45:11Z-
Data de envio: dc.date.issued2018-04-04-
Data de envio: dc.date.issued2018-04-04-
Data de envio: dc.date.issued2015-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/28982-
Fonte completa do material: dc.identifierhttp://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/19814-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1146683-
Descrição: dc.descriptionMechanical harvesting can be considered an important factor to reduce the costs in coffee production and to improve the quality of the final product. Coffee harvesting machinery uses mechanical vibrations to accomplish the harvesting. Therefore, the determination of the natural frequencies of the fruit-stem systems is an essential dynamic parameter for the development of mechanized harvesting system by mechanical vibrations. The objective of this study was to develop a three-dimensional finite element model to determine the natural frequencies and mode shapes of the coffee fruit-stem systems, considering different fruit ripeness. Moreover, it was carried out a theoretical study, using the finite element three-dimensional model, based on the linear theory of elasticity, for determining the generated stress in a coffee fruit-stem system, during the harvesting process by mechanical vibration. The results showed that natural frequencies decrease as the ripeness condition of the fruit increases. Counter-phase mode shape can provide better detachment efficiency considering the stress generation on coffee fruit-stem system during the harvesting by mechanical vibrations and presented a difference greater than 40 Hz between the natural frequencies of the green and ripe fruit.-
Idioma: dc.languageen-
Publicador: dc.publisherUniversidade Federal de Santa Maria-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceActa Scientiarum. Technology-
Palavras-chave: dc.subjectCoffee harvesting-
Palavras-chave: dc.subjectMechanization-
Palavras-chave: dc.subjectMechanical vibrations-
Palavras-chave: dc.subjectColheita de café-
Palavras-chave: dc.subjectMecanização-
Palavras-chave: dc.subjectVibrações mecânicas-
Título: dc.titleSimulation of the dynamic behavior of the coffee fruit-stem system using finite element method-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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