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Estudo da confiabilidade operacional da malha ferroviária na região dos convertedores da ArcelorMittal Tubarão
(Universidade Tecnológica Federal do ParanáCuritibaBrasilEspecialização em Engenharia da ConfiabilidadeUTFPR, 2019-10-30)
The economic performance of a railroad is a reflection of the quality of the railway track and the frequency of maintenance required. Maintenance of the permanent road has a significant cost, especially when rail replacement ...
Análise da influência da temperatura, na ocorrência de flambagem em trechos da Estrada de Ferro Vitória Minas
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Especialização em Engenharia da ConfiabilidadeUTFPR, 2017-11-10)
There’re several ways to monitor the asset condition of the railway superstructure. Visual inspection, manual instrument measurements, measurements with machine of way or sensors installed in the railway network. Associated ...
Otimização do ciclo de manutenção preventiva de rolamentos ferroviários
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Especialização em Engenharia da ConfiabilidadeUTFPR, 2017-11-10)
With reliability engineering concepts it is possible to study cost optimization, that is the objective of this work and one of the main pillars of any company in a competitive scenario. The paradigm that only preventive ...
Optimizing periodic maintenance operations for railroad tracks subjected to deterioration
(UniandesMaestría en Ingeniería IndustrialFacultad de IngenieríaDepartamento de Ingeniería Industrial, 2016)
Railroad operations are inherently complex and source of several problems. Most of the maintenance operations require specialized teams with large and expensive equipment, so it is essential that these resources are used ...
Bitolas ferroviárias no Brasil: uma análise da possibilidade de integração da malha nacional
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de Construção CivilEngenharia CivilUTFPR, 2022-06-24)
In the Brazilian freight transportation matrix, road transport predominates, followed by rail and cabotage. As Brazil is a country with a large territorial extension, an efficient transport system is essential. In relation ...
Comportamento dos custos em empresas do segmento de transporte ferroviário listadas na BM&FBOVESPA
(Universidade Tecnológica Federal do ParanáCuritibaBrasilEspecialização em Gestão FinanceiraUTFPR, 2018-08-24)
Monitoring the evolution of costs and expenses in relation to revenues is essential to verify whether activities are carried out under the perspective of increasing or decreasing profitability. The observation regarding ...
Estudo do custo do ciclo de vida de um motor diesel de locomotiva
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Eletrotécnica, 2012-10-26)
The high cost of the rail transport maintenance can be split into the permanent way cost and the rolling stock. This last one, represented in Brazil for the diesel-electric locomotives, the item more expensive is the diesel ...
Avaliação em laboratório do efeito da formulação e das propriedades de graxas lubrificantes no desempenho tribológico do contato roda-trilho
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2020-08-14)
Tribological phenomena in the wheel-rail interface are complex. In sharp curves, the severe contact conditions lead to high values of friction and wear. Excessive friction increases fuel consumption (highest material cost ...
Proposta de aplicação do Balanced Scorecard para o operador de transporte ferroviário
(Universidade Estadual Paulista (Unesp), 2008-01-30)
The Brazilian railroad transport has been achieving a continuous growth, in terms of its production in the last years, mainly after the beginning of the network concessions to private initiative. However, when comparing ...
Railway traffic management: simulation and heuristic optimization
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2021-03-05)
The railroad operations often require planning on the routing of the trains in order to comply with physical restrictions (like single-track operations) while handling priorities on crossings and overtakes, among others. ...