2007
DOI: 10.1590/s0100-204x2007000700015
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Desempenho de tratores agrícolas em tração

Abstract: Resumo -O objetivo deste trabalho foi avaliar o desempenho de tratores agrícolas e implementos em trabalhos de tração. Procurou-se estabelecer e validar modelos de previsão relativos ao esforço de tração requerido pela grade de discos offset de arrasto e relativos ao consumo de combustível do trator. É descrito o sistema de aquisição de dados desenvolvido para utilização em ensaios de campo, em condições reais de trabalho. Os parâmetros medidos foram: o regime do motor, a velocidade teórica e a velocidade real… Show more

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Cited by 14 publications
(12 citation statements)
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“…This occurred because the working width was the same and the working speed varied little. Considering that the tensile force in this case depends only on the weight of the grid (SERRANO, 2007) and the tuning of the tractor were equal, one would expect that there were also differences in velocity between the set two types of soil and consequently of field capacity. However, in devices with convergent concave disks (DCC) and subsoilers blades (SL and SL + T) that move large volumes of soil, it was expected that the theoretical field capacity was lower in clay soil.…”
Section: It Is Observed Inmentioning
confidence: 99%
“…This occurred because the working width was the same and the working speed varied little. Considering that the tensile force in this case depends only on the weight of the grid (SERRANO, 2007) and the tuning of the tractor were equal, one would expect that there were also differences in velocity between the set two types of soil and consequently of field capacity. However, in devices with convergent concave disks (DCC) and subsoilers blades (SL and SL + T) that move large volumes of soil, it was expected that the theoretical field capacity was lower in clay soil.…”
Section: It Is Observed Inmentioning
confidence: 99%
“…Além do correto dimensionamento do conjunto trator-implemento, é fundamental escolher o momento adequado para intervir no solo e garantir regulagens corretas do regime do motor, da relação de transmissão da caixa de velocidades, da pressão de insuflagem dos pneus e do lastro do trator (SERRANO, 2007 (MACHADO et al, 2010).…”
Section: Introductionunclassified
“…The energy evaluation can be performed based on measurement of fuel consumption per hectare, the main technical reference indicator in efficiency assessment of tractor use, since it demonstrates the involvement of several variables that influence the overall yield of fuel transformation supplied to the engine for useful work performed by implement (Serrano, 2007).…”
Section: Introductionmentioning
confidence: 99%