Axle
Mostrando 1-12 de 98 artigos, teses e dissertações.
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1. OPERATIONAL AND ENERGY PERFORMANCE OF 250 kW DOUBLE WHEELED VERSUS RUBBER HALF-TRACKED TRACTORS IN THE SOYBEAN SOWING
ABSTRACT The technological innovation in agriculture seeks to improve the performance of mechanized assemblies and, currently, rubber half-tracks are a valuable solution for agricultural tractors, combining traction performance and less soil compaction. The objective of the experiment was to evaluate the operational and energy performance of double wheeled v
Eng. Agríc.. Publicado em: 2020-10
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2. PATH ERRORS IN SUGARCANE TRANSSHIPMENT TRAILERS
ABSTRACT The need for accuracy in sugarcane machine traffic has boosted the adoption of automatic steering systems. These have been used in tractors pulling transhipment trailers. Such sets are long and articulated, which hinders their performance and benefits due to alignments in curved and laterally sloped paths. In this sense, this study aimed to quantify
Eng. Agríc.. Publicado em: 2020-04
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3. ENERGY PERFORMANCE IN DISC HARROWING OPERATION IN DIFFERENT GRADIENTS AND GAUGES
ABSTRACT The operational performance of the agricultural tractor can be increased by adjusting parameters such as tire inflation pressure, axle mass distribution and gauge opening, which is a very divergent factor in controlled-traffic production. The objective of the experiment was to measure the energy performance of a 93 kW agricultural tractor in interme
Eng. Agríc.. Publicado em: 09/12/2019
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4. Continuously monitored lactose crystallization in a vibrated bed
Resumo O estudo visa avaliar a distribuição de tamanho cristalino e a microscopia da fase cristalina na cristalização isotérmica de lactose, usando alta concentração de sementes (fase densa). O monitoramento in-line foi realizado utilizando as sondas de medição de reflexão de feixe focalizado (FBRM) e de medição de visão de partículas (PVM), um
Braz. J. Food Technol.. Publicado em: 14/11/2019
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5. Load equivalency factors for off-road trucks
Abstract This article addresses an analysis of the Load Equivalency Factor (LEF) for off-road trucks. A new LEF curve for single axles with dual wheels covering trucks from 6.0 to 151.42 tons per axle is proposed, converting various magnitudes of damage from wheel loads to damage caused by the standard axle load of 8.2 tons. Then, this damage ratio was raise
REM, Int. Eng. J.. Publicado em: 16/09/2019
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6. Simulação do Processo de Soldagem Elétrica por Centelhamento de um Aço para Trilhos Ferroviários. Parte 1: Análise de Tensões Residuais Via Elementos Finitos
Resumo Trilhos longos, soldados pelo processo Flash Butt Welding (FBW), são a realidade das ferrovias brasileiras de média e alta carga por eixo. Embora apresentem características desejáveis do ponto de vista do comportamento dinâmico da via, as soldas são regiões de descontinuidade estrutural e mecânica onde se originam tensões residuais, e que est
Soldag. insp.. Publicado em: 27/06/2019
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7. Effect of temperature gradients on the behaviour of jointed plain concrete pavements
Resumo Em muitos países da América Latina os pavimentos de concreto com juntas (JPCP) são calculados usando os métodos da “American Association of State Highway and Transportation Officials (AASHTO) ou da “Portland Cement Association” (PCA), os quais não levam em consideração explicitamente as condições climáticas específicas de cada região
Rev. IBRACON Estrut. Mater.. Publicado em: 20/05/2019
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8. Stress-based fatigue reliability analysis ofthe rail fastening spring clipunder traffic loads
Nowadays, the rail fastening systems play an important role for preserving the connection between the rails and sleepers in various conditions. In this paper, stress based concept is used to develop a comprehensive approach for fatigue reliability analysisof fastening spring clip. Axle load, speed and material properties are assumed to be random variables. F
Lat. Am. j. solids struct.. Publicado em: 2014-11
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9. Sensitivity analysis of bridge-track-train system to parameters of railway
Generally, Railway bridges are long structures which have different responses against different loads of train. Applied loads of train on railroad bridges are different in terms of axle loads speed, and annual passed tonnages and they have quite different dynamic behavior in comparison with road bridges. Most researches are basically focused on the quasi-sta
Lat. Am. j. solids struct.. Publicado em: 2014-08
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10. Compactação do solo gerada por pneus de alta flutuação de eixo livre e trativo / Soil compaction generated by high flotation tires of free and tractive axle
O aumento da mecanização das lavouras gera o emprego de máquinas cada vez mais potentes e, a potência possui relação direta com o peso. Aumentando-se o tráfego de máquinas pesadas sobre o solo o emprego do pneu correto é de suma importância para se minimizar os efeitos da compactação. Com as diferenças entre os modelos de pneus de alta flutuaç�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/05/2012
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11. Ânfora de Apolo: um estudo sobre cerâmica grega cicládica \"Meliana\" do séc. VII a. C. / Apollo\ s Amphora: a Study About Cycladic Greek \"Melian\" Pottery from 7th century B.C.
This study is about a particular kind of Greek vase pottery, called -Melian?, and has the Orientalizing Greek world as background. Beginning with an special one, the -Melian? Cycladic Apollo´s Amphora, the work is supported by an iconographic view with attention to all paintings in this vase. The Apollo´s Amphora is the axle of this master dissertation. It
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/03/2012
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12. Field investigation on variation of rail support modulus in ballasted railway tracks
Rail support modulus is an important factor in safety of railway track. This parameter is defined as support force imposing on rail length unit per rail unit displacement in vertical direction. Rail support modulus is important because it affects track performance and maintenance requirements. Both low and large modulus is undesirable. Low modulus of the rai
Lat. Am. j. solids struct.. Publicado em: 2012-12