Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/30280
Title: Influence of the impact of a rigid rod on the coffee fruits detachment by mechanical vibrations
Other Titles: Influência do impacto de uma haste rígida no destacamento de frutos de café por vibrações mecânicas
Keywords: Cafeicultura - Mecanização
Café - Derriça
Vibrações mecânicas
Coffee growing - Mechanization
Coffee - Detachment
Vibrações mecânicas
Issue Date: 2016
Publisher: Universidade Federal da Grande Dourados
Citation: GOMES, E. Q.; SANTOS, F. L.; JESUS, V. A. M. de. Influence of the impact of a rigid rod on the coffee fruits detachment by mechanical vibrations. Revista Agrarian, Dourados, v. 9, n. 32, p. 172-181, 2016.
Abstract: Nowadays, the coffee sector has passed by a transition due the lack of labor, which makes manual harvesting impracticable. The mechanization has been the solution found by the coffee farmers to overcome the problem of lack of labor and also reduce the production costs. The principle used to perform coffee mechanical harvesting is based on mechanical vibrations. The aim of this study was to evaluate the detachment efficiency behavior of the coffee fruits under mechanical vibrations transmitted to the fruit-stem system by impact of a rigid rod, and mechanical vibrations transmitted to the system without the impact. Trials to evaluate the fruits detachment were performed varying the vibration frequency, the ripening stage of the fruits, the number of fruits at the same stem and the way of transmission of the mechanical vibrations to the fruit-stem system. The detachment efficiency of red fruits was higher than green fruits. It was observed an increase of the detachment efficiency associated to the increase the frequency of vibration. Detachment efficiency obtained from mechanical vibrations transmitted due the impact of a rigid rod on fruit-stem system was 19.4% higher than mechanical vibrations transmitted without impact.
URI: http://repositorio.ufla.br/jspui/handle/1/30280
Appears in Collections:DEG - Artigos publicados em periódicos



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