Traction Power
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. ENERGY EFFICIENCY OF AGRICULTURAL TRACTORS EQUIPPED WITH CONTINUOUSLY VARIABLE AND FULL POWERSHIFT TRANSMISSION SYSTEMS
ABSTRACT The efficiency of agricultural tractor transmission has been improved over the years, with new concepts such as Continuously Variable Transmission (CVT) and Full Powershift (FPS) evolving in advanced technologies. Both options seek to offer the farmer greater operational results with lower energy expenditure, necessitating studies to assess the effe
Engenharia Agrícola. Publicado em: 2022
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2. Agricultural tractor performance fueled with proportions of biodiesel
ABSTRACT Among the fuel sources used nowadays, biofuels stand out for being renewable and biodegradable. In this sense, this work aimed to evaluate the performance and smoke opacity of an agricultural tractor in soil tillage activities, depending on the biodiesel blends and the engine rotation. Were used six blends of soy (S) and murumuru (M) biodiesel and s
Revista Ceres. Publicado em: 2022
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3. Avaliação dos sistemas metroviários nas emissões de CO2: análise comparativa das emissões por automóveis, ônibus e metrôs
RESUMO O setor de transportes é responsável por uma parcela das emissões globais de dióxido de carbono (CO2). Os estudos científicos publicados sobre emissões de CO2 pelos sistemas de transportes de passageiros tratam basicamente de resultados envolvendo apenas as emissões relacionadas ao consumo dos combustíveis dos automóveis e ônibus. Nos metrô
Eng. Sanit. Ambient.. Publicado em: 25/11/2019
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4. Reduction of fuel consumption using driving strategy in agricultural tractor
RESUMO No momento da aquisição e utilização de um trator agrícola, o consumo de combustível pelo motor deve ser levado em conta pelo usuário, tendo em vista sua origem não renovável e o preço de comercialização. Estratégias adequadas de condução de tratores podem auxiliar os usuários a reduzirem os custos de produção. Nesse contexto, objeti
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-02
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5. DYNAMIC TRACTION OF A MECHANIZED SET BASED ON TECHNICAL AND OPERATIONAL PARAMETERS
ABSTRACT The objective of this study was to evaluate and model the traction performance parameters of a tractor 4x2 FWD, according to the tractor speed, the internal pressure and the type of tires construction. For each type of tire construction was assembled an experiment in which we evaluated the influence of internal pressures of the front and rear tires
Eng. Agríc.. Publicado em: 2017-06
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6. A New Fifth-Order Shear and Normal Deformation Theory for Static Bending and Elastic Buckling of P-FGM Beams
Abstract A new fifth-order shear and normal deformation theory (FOSNDT) is developed for the static bending and elastic buckling analysis of functionally graded beams. The properties of functionally graded material are assumed to vary through the thickness direction according to power-law distribution (P-FGM). The most important feature of the present theory
Lat. Am. j. solids struct.. Publicado em: 2017
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7. ESTIMATIVA DO DESEMPENHO DE TRATORES AGRÍCOLAS EM CAMPO E PISTA A PARTIR DO ENSAIO DINAMOMÉTRICO / ESTIMATE OF THE PERFORMANCE OF AGRICULTURAL TRACTORS IN FIELD AND TRACK FROM DYNAMOMETRIC TESTS
O trator agrícola permite movimentar e tracionar máquinas e implementos utilizados durante a realização das atividades a campo. Um dos maiores problemas refere-se ao desempenho do trator, razão de muitos questionamentos entre agricultores e empresas fabricantes. A determinação do desempenho é uma tarefa bastante complexa, principalmente quando realiz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/03/2012
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8. ANÁLISE DE DESEMPENHO EM TRAÇÃO DE RODADO SIMPLES E DUPLO EM UM TRATOR AGRÍCOLA / ANALYSIS OF TRACTION PERFORMANCE OF SINGLE AND DUAL TIRES IN AN AGRICULTURAL TRACTOR
A major problem of agricultural tractor during several operations in which it is used is the difficulty of working in various moisture conditions and soil types affect your ability to traction force, slip and fuel consumption. What has been observed is that with increased contact surface between the tire of the tractor and the ground, there is the possibilit
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/03/2011
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9. Esforços tratórios na aração com três chassis polivalentes.
Verificou-se o esforco tratotorio na aracao com 3 chassis polivalentes em solo podzolico amarelo. Os resultados obtidos mostraram que o esfoco total aumentou a medida que foram utilizados chassis porta-implementos de maior peso. O esforco especifico medio entre os tratamentos foi 0,304 kg/cm2 trabalhando a 21,6 cm de largura de corte, a uma profundidade de 1
Petrolina : EMBRAPA-CPATSA. Publicado em: 2011
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10. A rough terrain traction control technique for all-wheel-drive mobile robots
Traction control is a critical aspect of mobile robots that need to traverse rough terrain, avoiding excessive slip - which may cause the terrain to collapse locally and trap the robot wheels - and guaranteeing an adequate trajectory and speed control while reducing the power requirements. Traction control of all-wheel-drive robots in rough terrain was origi
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12
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11. ESTUDO DE TRAFEGABILIDADE APLICADO A VEÍCULOS DE RODA EM TRANSPORTE E TRAÇÃO / TRAFFICABILITY STUDY APPLIED TO WHEELED VEHICLES IN TRANSPORT AND TRACTION
The ability of vehicles to traverse soft soils is an important aspect of their performance. The geological, climate and topography diversity originated, in Rio Grande do Sul, extensive areas of hydromorphic clay soils, as example, Planssoils and Gleissoils. When saturated of water, these soft soils present low loads support, difficult agricultural machinery
Publicado em: 2010
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12. IDENTIFICATION OF THE BEHAVIOR OF TEMPERATURE MAIN RECTIFIER OF A DIESEL-ELECTRIC LOCOMOTIVE / IDENTIFICAÇÃO DO COMPORTAMENTO DA TEMPERATURA DO RETIFICADOR PRINCIPAL DE UMA LOCOMOTIVA DIESEL-ELÉTRICA
In this dissertation, we explore the application of the Theory of System Identification to develop a mathematical model that represents the behavior of the electrical current rectifier used to power the traction motors of a locomotive diesel-electric, based on mathematical manipulation of its temperature data. It was developed an ARX model and, using the aid
Publicado em: 2010