Bacharelado em Engenharia Mecânica
URI permanente desta comunidadehttps://ri.ifam.edu.br/handle/4321/507
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99 resultados
Resultados da Pesquisa
Item O gás natural veicular no município de Manaus: uma análise de disponibilidade, economia e meio ambiente(2024-08-26) Nascimento, David Rychard Pesqueira do; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Mattos, Marcus Renato Pinheiro; http://lattes.cnpq.br/2890713359271807With the increasing concern about fluctuations in fuel prices, the need to search for options offering greater economic viability becomes evident. In this context, compressed natural gas (CNG) emerges as a promising alternative, not only providing price stability but also significant economic advantages when compared to gasoline and ethanol. The conducted study also aims to assess the availability of natural gas in the Amazon region, with a focus on its supply in the municipality of Manaus. This involves examining existing distribution infrastructure and expansion possibilities to meet the growing demand for cleaner and more economical fuels. Another relevant aspect addressed is the analysis of exhaust emissions indices in a sample of vehicles powered by compressed natural gas in the city of Manaus, compared to conventional liquid fuels such as gasoline and ethanol. The reduction of atmospheric pollutant emissions represents a significant advantage of CNG, contributing to improved air quality and the mitigation of climate change. Through this research, the feasibility of CNG utilization in Manaus is sought to be demonstrated, while also providing insights for public policies promoting the transition to more sustainable and economical energy sources in the transportation sector.Item Adequação de máquina de teste de placas WIFI conforme os requisitos da NR 12 – estudo de caso(2024-08-30) Costa, Alcimar Oliveira da; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Barros, Rodson de Oliveira; http://lattes.cnpq.br/9424687587691792This study presents the adaptation of a test press to comply with Regulatory Standard 12 (NR-12) of the Ministry of Labor. During the risk analysis, it was identified that the operator was exposed to the risk of hand crushing when positioning plates in the machine's cradle. The objective of the research was to implement technical modifications to ensure the machine's compliance with NR-12 and improve worker safety. The adaptation was guided by the NBR ISO 12100 and NBR 14153 standards, which served as the basis for the risk assessment, while the 5W2H tool was used to detail the necessary modifications. The process involved the preparation of a Preliminary Risk Assessment (PRA), machine adaptation with identified safety components, compliance testing, and the preparation of a technical report certifying safe operation. After implementing the adjustments, results showed a significant reduction in accident risks and increased productivity. Furthermore, there was an improvement in the quality of the plate tests, as the safety peripherals prevented operator intervention during the validation process. In conclusion, the machine's adaptation provided benefits for both worker safety and the efficiency and quality of the production process.Item Estudo da influência do lítio na síntese de titanato de sódio como uma alternativa para baterias de estado sólido(2025-01-04) Souza, Handerson Cunha de; Moura, David da Silva; Oliveira Neto, Benjamin Batista deThe growing demand for new energy sources has been a stimulus for extensive research in the area of materials, especially in high-performance solid-state batteries. Recently, sodium trititanate (Na2Ti3O7), an inorganic chemical compound, has received attention due to its effectiveness in ion exchange and catalytic properties. However, its application as an electrolyte in solid-state batteries is limited due to its low electrical conductivity. To overcome this limitation, lithium-doped Na2Ti3O7 nanoparticles were synthesized in different proportions, ranging from 0% to 5% by mass, using the microwave-assisted hydrothermal method. Samples were extensively characterized by XRD, 0%, 1% and 5% samples were also analyzed by DTA, Raman spectroscopy and complex impedance spectroscopy. Notably, the 5% lithium doped sample exhibited an electrical resistance approximately one order of magnitude lower than the undoped material. These promising results highlight the potential of doped sodium titanate as a viable component for high-performance solidstate batteries due to its enhanced structural and conductive properties.Item Padronização do planejamento e controle de manutenção através do pilar de manutenção profissional pertencente a metodologia WCM em uma empresa da linha branca do polo industrial de Manaus - AM(2024-08-22) Pereira, Wander Sousa; Pinto, Camila Costa; Maciel, Paulo Fernando Figueiredo; Fialho, Michaella Socorro Bruce; Oliveira Neto, Benjamim Batista deIn today's globalized scenario, pursuing excellence in maintenance management is crucial for companies to maintain their competitiveness in the international market. With the advent of Industry 4.0, the concept of World Class Manufacturing (WCM) emerges, focusing on waste elimination and continuous improvement in efficiency through technical and managerial pillars. In this context, Maintenance Planning and Control (PCM) plays a crucial role in developing plans and policies to ensure the effectiveness of maintenance processes. This article underscores the importance of PCM as an essential facilitator to achieve and maintain the excellence standards required by WCM through the implementation project of the Professional Maintenance Pillar in a white goods industry located in the industrial hub of Manaus, Brazil. As a result of restructuring efforts, including the establishment of indicators, improved data control, and enhanced service efficiency, there was a significant reduction in lost products from 39,903 units in 2020 to 20,962 units in 2021, along with a decrease in equipment downtime from 1.63% to 0.73%.Item Projeto conceitual de um tachão sinalizador para tubulações de gás em áreas urbanas(2024-12-09) Pereira, José Carlos Gomes; Nascimento, David Rychard Pesqueira do; Pessoa, Everton Hipólito; Rosa, Roberto Canedo; Fialho, Michaella Socorro BruceItem Construção do protótipo da ferramenta especial para montagem e desmontagem dos cubos de roda da aeronave C295 CASA.(2022-12-16) Neves, Heitor Fernando Arantes; Pinto, Camila da Costa; http://lattes.cnpq.br/5909706356694272; Pinto, Camila da Costa; http://lattes.cnpq.br/5909706356694272; Castro, Cristovão Américo Ferreira de; http://lattes.cnpq.br/4930257608461492; Correia Junior, Darbens Silvio; http://lattes.cnpq.br/1177455707769855This research aims to create a special tool to assist in the assembly and disassembly of the wheel hubs of the C295 aircraft Aiming at an increase in productivity and a reduction in the time used for safe and objective maintenance. When it comes to the mechanics of cargo and troop transport aircraft, specifically, there is a whole sequence of factors that directly influence the availability of the aircraft. This can affect existing demands, such as transportation of supplies to more distant locations, the cause of an aeronautical accident, failure to carry out an aeromedical evacuation (EVAM) or transport of organs, causing the worsening of medical situations, which may lead to the loss of the patient. Given this, this study was carried out with a qualitative and quantitative approach, based on bibliographical and documentary research, nothing the need for safer and faster preventive and/or corrective maintenance. For this, technical manuals were also used, respecting the foreseen limits, avoiding damage and loss of aeronautical materials, contributing to the State’s economy. Upon completion of the research, it is found that the use of the special tool allows for safety and, in a positive way, increases the availability of the C295 aircraft.Item Projeto de uma máquina alimentadora de tarugos(2022-08-20) Costa, Eduardo de Souza; Maciel, Paulo Fernando Figueiredo; Fialho, Michaella Socorro BruceThis work presents the development of a project for an Automatic Aluminum Billet Feeding Machine, designed to meet the demands of the aluminum profile extrusion industry. The objective is to provide an automated and reliable solution for the supply of aluminum billets, aiming to improve the productivity and competitiveness of companies in the sector in a sustainable manner. The methodology is divided into three main stages: mechanical design, electrical design, and ladder programming. In the mechanical design phase, the physical elements of the machine are dimensioned, ensuring its robustness and operational efficiency. In the electrical design phase, the necessary electrical components are dimensioned and selected, taking into account safety standards and performance requirements. Finally, in the ladder programming phase, the machine control software is developed, responsible for coordinating its operations. The described methods enable the design of a machine capable of meeting the project requirements efficiently and sustainably.Item Análise da ruptura de um pivô de suspenção veicular(2022-12-16) Garcia, Igor Pinto; Melquíades, Miécio de Oliveira; http://lattes.cnpq.br/3930442877552689; Melquíades, Miécio de Oliveira; http://lattes.cnpq.br/3930442877552689; Monteiro, Alberto de Castro; http://lattes.cnpq.br/8300386519703896; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825The failure analysis of a vehicle suspension pivot was presented through a case study in which the part sample was evaluated. The suspension pivot is an element that receives large loads from braking, up and down movement of the wheel and change of direction. He is responsible for sustaining the wheel and connecting the bodywork to the other suspension elements. The part is a model belonging to a 2013 passenger vehicle, which after the failure was stored in a plastic bag from the new replaced part, after being stored indoors for about six months. The manufacturer of the part was also not identified. Ductile failures usually occur during manufacturing or service start-up. According to ASTM Handbook 11, the most common ductile fracture failures are related to errors in controlling service stresses, misuse or abuse in service, improper selection or processing of materials, or poor manufacturing. The present study was intended to show a correct analysis of mechanical failure. In the fractographic analysis stages, a preliminary examination was carried out, which includes; the photographic record of the piece received, and cleaning and macroscopic examination, this consists of observing the fractured surface in a stereomicroscope. Finally, a microscopic examination was carried out using scanning electron microscopy and metallography to observe the characteristics of the material.Item Proposta de controle de substituição e manutenção para levantamento de dados da vida útil da Dummy SIM Card (componente que simula a verificação da comunicação entre o aparelho e o serviço de telefonia móvel)(2023-07-11) Barreiros, Donaldo Barreto; Plácido, Marisol Elias de Barros; http://lattes.cnpq.br/1902514007423220; Plácido, Marisol Elias de Barros; http://lattes.cnpq.br/1902514007423220; Lima, Plácido Ferreira; http://lattes.cnpq.br/0865439005714077; Farias, Nei Junior da Silva; http://lattes.cnpq.br/1116278832170292Item Estudo da utilização de realidade aumentada no ensino técnico(2023-03-07) Silva, Roney Pereira da; Costa, Efraim Menezes de Lima; http://lattes.cnpq.br/9980364492212137; Costa, Efraim Menezes de Lima; http://lattes.cnpq.br/9980364492212137; Pinto, Camila da Costa; http://lattes.cnpq.br/5909706356694272; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825Over the years, Augmented Reality (AR) has gained applications in several areas, one of these areas was the area of education, which used the tool as a means of developing more dynamic classes, making the theoretical content taught in the classroom more interesting. In general, technical courses still do not have in their curriculum the use of augmented reality as a support in the teaching of disciplines in the technical area, so that when the student does not have access to the practical class due to the unavailability of adequate equipment, it ends up being restricted. to the theoretical content of the equipment. In this way, this work develops an academic research that encourages the use of augmented reality as a technological support tool, but also prepares students with a certain practice through augmented reality. As a result, a portfolio of parts from the Organic Elements of Machines discipline of the Technical Course in Electromechanics at IFAM was developed, which was applied through a mini-course to the students of the course.