Evaluation of tractive performance of four agricultural tractors in laterally inclined terrain

Abstract

ABSTRACT:The present work aimed to evaluate the tractive performance of four agricultural tractors with auxiliary front traction in function of six lateral inclinations in a lateral track of trials, which belongs to the Agronomic Sciences Faculty from the São Paulo State University, Campus of Botucatu. The lateral inclinations were 0; 5; 10; 15; 20 and 25 degrees. In all of these situations, the tractors operated with predetermined load of an imposed traction to the pulled tractor of 40 kN in the inclination of 0 degrees. Hence a delineation in random blocks was used, considering six inclinations and four tractors, and with three repetitions for each treatment. The analyzed variables were slippage, tractive force, hourly fuel consumption, and speed. It was concluded that the pneumatic tire configurations influenced in the tractive performance of the tractors, as they increased the lateral inclinations of the terrain. KEYWORDS

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“…Durante a aquisição de número de voltas por ambos os consistiu em contabilizar o volume de combustível por unidade de tempo. Dentro do fluxômetro, o combustível passou entre duas engrenagens ovais que, ao completarem uma volta, deslocavam 1 ml de combustível, gerando então um pulso elétrico que foi transformado em valores de consumo dentro do micro processador (LEITE et al, 2011;GOMES et al, 2016). O computador instalado na cabine do trator foi conectado ao carro dinamométrico e aos sensores embarcados no trator, monitorando e armazenando os dados por meio do circuito microcontrolador do tipo Arduino®, conforme fluxograma da Figura 6.…”

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