Modal properties of fruit-rachilla system of the macaw palm

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorVillar, Flora Maria de Melo-
Autor(es): dc.creatorPinto, Francisco de Assis de Carvalho-
Autor(es): dc.creatorSantos, Fabio Lucio-
Autor(es): dc.creatorQueiroz, Daniel Marçal de-
Autor(es): dc.creatorPereira, Mariana Ribeiro-
Autor(es): dc.creatorValente, Domingos Sárvio Magalhães-
Data de aceite: dc.date.accessioned2026-02-09T11:39:38Z-
Data de disponibilização: dc.date.available2026-02-09T11:39:38Z-
Data de envio: dc.date.issued2022-06-07-
Data de envio: dc.date.issued2022-06-07-
Data de envio: dc.date.issued2020-12-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/50126-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1144596-
Descrição: dc.descriptionThe macaw palm has been domesticated due to its potential use in the production of biofuel, in addition to several co-products that can be generated from its oil and pulp. One of the current challenges in this area is the harvesting, as there are no specific machines for this operation. Therefore, it is necessary to determine the appropriate information regarding the physical properties of the plant, so that it is feasible to develop the technologies necessary for the commercial scale application of macaw palm, allowing it to contribute to the sustainable production of raw material for the biofuel industry and other co-products. The principle of mechanical vibration can be used to shed fruit from trees when ripe, and it can be a method used for harvesting. Thus, as proposed in this study, it was necessary to study the dynamic behavior of the fruit-rachilla system during vibration. Hence, the modal properties of the system were determined. A study on the dynamic behaviors was carried out using a deterministic finite element model, and the natural frequencies were obtained through a frequency-scanning test to evaluate the model. The mean relative error (MRE) between the measured and simulated natural frequencies was also used to evaluate the model. The natural frequencies, determined experimentally, varied from 26.21 to 33.45 Hz on average, whereas the simulated frequencies varied from 24.81 to 39.27 Hz. The overall MRE was 9.08%. Once the model was validated, a sensibility test was carried out, which showed that the density of fruit and the elasticity modulus are the parameters that most influence the natural frequencies of the fruit-rachilla system.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherPublic Library of Science (PLoS)-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourcePLoS ONE-
Palavras-chave: dc.subjectBiofuels-
Palavras-chave: dc.subjectPrinciple of mechanical vibration-
Palavras-chave: dc.subjectDynamic behaviors-
Palavras-chave: dc.subjectFinite element analysis-
Palavras-chave: dc.subjectNatural frequencies-
Palavras-chave: dc.subjectBiocombustíveis-
Palavras-chave: dc.subjectVibrações mecânicas-
Palavras-chave: dc.subjectComportamentos dinâmicos-
Palavras-chave: dc.subjectAnálise de elementos finito-
Palavras-chave: dc.subjectFrequências naturais-
Título: dc.titleModal properties of fruit-rachilla system of the macaw palm-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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