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Now showing items 71-80 of 444
Ensaios acelerados para estudo de vida em fadiga de laterais ferroviárias
(Universidade Tecnológica Federal do ParanáCuritibaBrasilEspecialização em Engenharia da ConfiabilidadeUTFPR, 2019-10-04)
This work involves the definition of methodology and application of accelerated fatigue tests for truck side frames, aiming to compare the remaining average life of new and recovered sides frames (after the dettection of ...
Ferramenta para aplicação da metodologia da manutenção centrada na confiabilidade em sistemas industriais
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Engenharia ElétricaUTFPR, 2018-06-26)
Reliability-Centered Maintenance (RCM) is a consolidated methodology in the industrial environment for the elaboration of maintenance plans based on the functions and modes of failure of each equipment. To facilitate the ...
Uma metodologia de desenvolvimento de diagnóstico guiado para veículos automotivos
(Universidade Tecnológica Federal do ParanáCuritibaPrograma de Pós-Graduação em Engenharia Elétrica e Informática Industrial, 2014-06-18)
External guided diagnostic tools are increasingly important to the aftermarket business of automotive industry. It occurs mainly due to the extensive using of embedded systems in vehicles, making them more complex and ...
Análise de falhas baseada em engenharia da confiabilidade em uma bomba centrífuga no processo reliquefação de amônia de uma planta petroquímica
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Especialização em Engenharia da ConfiabilidadeUTFPR, 2018-10-05)
An industrial fertilizer plant, in operation since 1982, has two centrifugal ammonia pumps, which are responsible for the transfer of unused surplus ammonia from the urea unit to the storage tank. These pumps are of extreme ...
Combined solution for fault location in three-terminal lines based on wavelet transforms
(INST ENGINEERING TECHNOLOGY-IET, 2010)
This work presents the study and development of a combined fault location scheme for three-terminal transmission lines using wavelet transforms (WTs). The methodology is based on the low- and high-frequency components of ...
Identificação das causas de atraso do início de uma obra residencial: um estudo de caso
(Universidade Tecnológica Federal do ParanáCuritibaBrasilEspecialização em Gerenciamento de ObrasUTFPR, 2018-07-31)
The objective of this work is to compare the streams of the projects studied, with a stream defined by the company studied as being ideal, and called "Residential Model", in order to identify the sources that cause the ...
Mapeamento de processos através do padrão BPMN em microempresas
(Universidade Tecnológica Federal do ParanáCuritibaBrasilEspecialização em Engenharia de ProduçãoUTFPR, 2015-10-27)
Understanding the processes and how they work is important for companies because it facilitates the understanding of possible errors that are not perceived without its bstructure is modeled. This article facilitates ...
Localização de falta de alta impedância em sistemas de distribuição: uma abordagem no domínio da frequência e estimação de parâmetros através do MMQP
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2018-04-23)
High impedance fault location still represents a challenge for protection engineers of electric
power utilities. Such a challenge remains a very critical point and of great concern to
utilities, as this type of fault can ...
Investigating effects of neutral wire and grounding in distribution systems with faults
(2004-12-01)
In some applications like fault analysis, fault location, power quality studies, safety analysis, loss analysis, etc., knowing the neutral wire and ground currents and voltages could be of particular interest. In order to ...
Investigating effects of neutral wire and grounding in distribution systems with faults
(2004-12-01)
In some applications like fault analysis, fault location, power quality studies, safety analysis, loss analysis, etc., knowing the neutral wire and ground currents and voltages could be of particular interest. In order to ...