2016
DOI: 10.1590/0103-8478cr20160262
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Design specifications of a human-powered planter

Abstract: ABSTRACT

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Cited by 3 publications
(4 citation statements)
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“…These three measures reduced considerable the machine weight that is 26 kilograms. This result is in accordance with the recommendation made by Stefanello et al (2016), which is < 30 kg for a human-powered punch planter. The punches were redesigned narrower to facilitate punch penetration and reduce power demand.…”
Section: Resultssupporting
confidence: 92%
See 1 more Smart Citation
“…These three measures reduced considerable the machine weight that is 26 kilograms. This result is in accordance with the recommendation made by Stefanello et al (2016), which is < 30 kg for a human-powered punch planter. The punches were redesigned narrower to facilitate punch penetration and reduce power demand.…”
Section: Resultssupporting
confidence: 92%
“…In a study related to farm power and mechanisation in the sub-Saharan region of Africa, Sims and Kienzle (2006) state that there are two possible approaches to increase productivity in relation to farm power: one is to increase its supply, the other is to reduce the need for it. Stefanello et al (2016) conducted a study to determine the design specifications for a human-powered punch planter for the direct sowing of maize and beans. They were guided by design and users requirements, assessed during a prior phase of the research.…”
Section: Introductionmentioning
confidence: 99%
“…O custo de aquisição, o qual é uma necessidade de grande importância para o agricultor familiar [15,[22][23] depende do custo de fabricação; para a confecção do protótipo 1 o valor total foi de R$ 96,50, sendo R$ 6,50 com materiais e o restante com serviços de usinagem. Ao testar o protótipo 2 (Figura 5), constatou-se que a manutenção do formato circular do sistema cortador permitiu um corte regular ao longo da espiga separando os grãos do sabugo uniformemente, deixando-os inteiros; apenas os grãos imaturos da ponta da espiga não foram debulhados, porém, esses grãos são considerados defeituosos para Instrução Normativa [24].…”
Section: Resultados E Discussõesunclassified
“…Many authors (BACK et al, 2010;REIS & FORCELLINI, 2006b;STEFANELLO et al, 2016) use and indicate similar methodologies to define design specifications, when these are set as quantitative targets, and the method to evaluate them. Sequence of steps, tasks, and tools used, are not identical, since each design has its own characteristic problems.…”
Section: Methodsmentioning
confidence: 99%