Trucks
Mostrando 1-12 de 96 artigos, teses e dissertações.
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1. Corrigendum
Abstract Reconciliation plays a key role in controlling and analysing mine operations. It consists in comparing model estimates with actual results produced by the plant, being used as an indicator, a monitoring tool. Discrepancies between these values are common in the mining industry and they highlight problems during processing steps. However, these discr
Braz. J. Psychiatry. Publicado em: 2020-12
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2. Reconciliation of sampling data and heterogeneity analysis of a bauxite mine in Poços de Caldas/MG, in Brazil
Abstract Reconciliation plays a key role in controlling and analysing mine operations. It consists in comparing model estimates with actual results produced by the plant, being used as an indicator, a monitoring tool. Discrepancies between these values are common in the mining industry and they highlight problems during processing steps. However, these discr
REM, Int. Eng. J.. Publicado em: 2020-12
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3. Increased power efficiency in mining by using high-fidelity haul truck simulation
Abstract The current economic and political scenario in Brazil has allowed small, medium and large companies to adopt cost cutdown and productivity increase strategies. Diesel fuel consumption by off-highway haul trucks stands for one of the largest costs at the Sossego Mine operational management department. Based on this fact, as well as on the 8% increase
REM, Int. Eng. J.. Publicado em: 2020-03
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4. 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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5. A decision-making method to assess the benefits of a semi-mobile in-pit crushing and conveying alternative during the early stages of a mining project
Abstract A significant cost in the operating budget of most mining operations arises from purchasing and maintaining haulage trucks. Recently, in-pit crushing and conveying (IPCC) has been subject to research because of its potential to reduce haulage costs. The objective of this study is to identify early on in a project, by means of a decision-making metho
REM, Int. Eng. J.. Publicado em: 2019-06
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6. A COMBINATION OF DISCRETE EVENT SIMULATION AND MULTI-CRITERIA ANALYSIS TO CONFIGURE SUGARCANE DROP AND HOOK DELIVERY SYSTEMS
ABSTRACT This article explores decision analysis regarding Drop and Hook (D&H) transportation operations at sugarcane mills. By means of a case study, a combination of a discrete event simulation model and multi-attribute utility theory was used to evaluate different configurations for sugarcane delivery systems using internal, external, or no D&H systems. A
Eng. Agríc.. Publicado em: 25/04/2019
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7. FEASIBILITY ANALYSIS OF THE USE OF LIGHT AND MEDIUM TRUCKS IN TIMBER TRANSPORT IN RURAL PROPERTIES
RESUMO Visando analisar a viabilidade econômico-financeira da utilização de caminhões leves e médios no transporte da madeira produzida por pequenos produtores rurais dentro do processo de produção florestal, foram avaliados dois tipos de caminhões leves e dois de caminhões médios em 14 propriedades rurais no Estado do Espirito Santo. Considerando
Rev. Árvore. Publicado em: 11/02/2019
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8. Operational Analysis of Forestry Transportation Using Self-loading Trucks in a Mountainous Region
ABSTRACT This research was conducted in wood harvesting and transportation areas in the mountainous region of Espírito Santo, Brazil, aiming to analyze the road transportation of forestry wood operations with self-loading trucks. The study identified and evaluated the times, average speed, mechanical availability, level of use and operating efficiency of t
Floresta Ambient.. Publicado em: 11/10/2018
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9. Aerodynamic Evaluation of Different Car Carrier Devices for Drag Reduction Using CFD
ABSTRACT: Aerodynamic of commercial trucks has been extensively studied due to their impact on fuel efficiency; reducing consumption is one of the most important and challenging issues for the trucking industry. In this paper, several Computational Fluid Dynamic (CFD) simulations are performed to evaluate the drag of a standard car carrier and its different
J. Aerosp. Technol. Manag.. Publicado em: 21/09/2018
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10. Prediction of apparent metabolizable energy and metabolizable energy corrected for nitrogen of corn according to physical classification of the grain
ABSTRACT The objective of this study was to develop an equation to determine the apparent metabolizable energy (AME) and metabolizable energy corrected for nitrogen balance (AMEn) using a physical-based classification of corn. A total of 5,055 samples were taken from bulk cargo trucks, over a five-year period. The parameters studied were the variables relate
R. Bras. Zootec.. Publicado em: 30/07/2018
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11. Development of a Heavy Containment Level Bridge Rail for Istanbul
Abstract The international highways within the city limits of Istanbul are used to transit more than 15 million trucks and other heavy good vehicles per year. According to the statistics, the number of single truck run of the road accidents is in the rise. Recent accidents on bridges showed that currently used bridge rails specified by Istanbul Metropolitan
Lat. Am. j. solids struct.. Publicado em: 02/07/2018
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12. The impact of payload truck factor use in mine performance reports for an open pit copper mine in Brazil
Abstract This article aims to evaluate the use of a truck factor for off-highway trucks in open pit mine operations, thus reducing error on material movement and mine production data entry. This method is current for a copper mine located in South East Pará, Brazil. With a dispatch system, the truck factor is calculated using three data inputs called measur
REM, Int. Eng. J.. Publicado em: 2018-07