Navegando por Autor "Oliveira Neto, Benjamin Batista de"

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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/9424687587691792
This 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.
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/0355646329266825
The 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.
Análise de conformidade de um sistema de ventilação em concordância com a NBR 14518 instalado em uma cozinha profissional no IFAM – campus Manaus centro
(2023-12-14) Nascimento, Salomão Ramos 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; Farias, Nei Junior Da Silva; http://lattes.cnpq.br/1116278832170292
The ventilation system is an essential component in professional kitchens as it helps remove smoke, grease and other contaminants from the air. Furthermore, the ventilation system is also important to ensure health, safety and comfort conditions for workers. The present study aimed to generate data related to the compliance conditions of the ventilation system installed in a professional kitchen at IFAM - Campus Manaus Centro. This seeks to demonstrate the degree of conformity of the desired items in the installed system. To carry out the analysis, a literature review on the subject was carried out, technical visits to the research site, development and application of a compliance checklist were carried out. The evaluation focused on aspects such as the efficiency of the ventilation system, safety of kitchen workers, and as a main point the system's compliance with the regulatory standard NBR 14518 – ventilation systems in professional kitchens. The results of the analysis indicated that due to the absence of fundamental points underlying the normative guidelines, the system was characterized as being in a non-compliant state
Análise de redução de risco em uma máquina de solda por costura e melhorias conforme NR12: um estudo de caso
(2023-12-28) Dantas, Marcelo Nobre; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Rosa, Roberto Canedo; http://lattes.cnpq.br/7329484141351121
Electric resistance welding has great relevance in the Brazilian industry, being applied in several sectors. Specifically, seam welding, which is extremely important in the manufacturing scenario. However, this technique presents considerable risks for the operators involved. In this context, Regulatory Standard 12 (NR12) appears as a guideline to guarantee the safety and well-being of these workers. Therefore, the objective of this work is to carry out an in-depth analysis of the risks associated with the seam welding machine, proposing improvements based on the risk assessment, in accordance with the guidelines established by NR12. The main focus is to seek improvements in working conditions and operator safety, aiming to achieve superior results in the context of industrial production.
Análises termodinâmicas de fluidos refrigerantes em sistemas de refrigeração para conservação de vacinas
(2022-12-14) Nunes, Rafael da Silva; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Lima, Placido Ferreira; http://lattes.cnpq.br/0865439005714077
The thermal load demands of a refrigeration system for storing yellow fever (attenuated) and poliomyelitis 1,2 and 3 (attenuated) vaccines were evaluated, following the Rede de Frios Manual for installation at a state level. The bases for the construction of the mathematical models are in the mass conservation and energy balance equations. Control volume analyzes are in accordance with the properties of working fluids such as enthalpy, entropy, pressure, temperature and thermal exchanges. In addition, the best process efficiency was analyzed in comparison with the coefficient of performance of each particular refrigerant fluid in the refrigeration cycle and the monthly cost of electricity relating the price of the cylinder containing the fluid, with the work of the compressor and the hours cold room operation. Special software is used in order to optimize the organization of information and understanding of results. In view of the data presented, it was observed that the R-134a fluid tended to be the most efficient for the parameters of this thermodynamic cycle, since it has the capacity to carry out the refrigeration process with the lowest compressor effort in relation to other refrigerants. In addition, the cost (R$) of R-134a was the lowest in the cycle, since its COP is higher, while R-404a was the second best evaluated and R-507a was the least viable for the process.
Boas práticas de manutenção para helicópteros: um estudo de caso do helicóptero uh-60l Black Hawk
(2022-09-12) Nascimento, Pedro Henrique da Cunha 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 Endereço; Barros, Rodson de Oliveira; http://lattes.cnpq.br/9424687587691792
This research aims to study good maintenance practices for helicopters, highlighting your employment on the aircraft UH-60L Black Hawk aircraft of the army aviation that operates in the Amazon. The maintenance system is based on practices that are performed as determined by the manufacturer and determined by the planning and control board for the preservation and continued operation of the helicopter. These procedures are carried out by managers, inspectors and mechanics who control, monitor, guide and execute all the guidelines so that the maintenance is faithful to the planning. However, this work would not be possible without the help of the main control software: Sismanut and the theoretical and practical knowledge of the professionals, indispensable for making maintenance easier. The helicopter is quite versatile, since it allows landing in remote places, with space restrictions and without aerodrome support. Having the helicopter fleet up to date is essential to carry out various activities and to maintain its use for many years. In view of the above, this study was carried out with a qualitative approach, where bibliographic, documentary and field research were carried out, emphasizing the verification of the composition and functioning of the elements that make up the maintenance system of the UH-60L Black Hawk through of technical laws and manuals. The result obtained ensures that good maintenance practices guarantee the preservation of aircraft by the 4th aviation battalion of the army and contribute to the safety of the military who man the aircraft for different purposes, preserving lives.
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 de
The 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.
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/0355646329266825
Over 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.
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/2890713359271807
With 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.
Redução do desperdício de lã de vidro no processo produtivo de peças para motocicletas em uma empresa do polo industrial de Manaus (PIM)
(2022-12-16) Queiroz, Abel Nascimento de; Melquíades, Miécio de Oliveira; http://lattes.cnpq.br/3930442877552689; Melquíades, Miécio de Oliveira; http://lattes.cnpq.br/3930442877552689; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Barros, Rodson de Oliveira; http://lattes.cnpq.br/9424687587691792
In the 21st century, it is essential in the industrial sector to monitor the waste generated in the production of motorcycle parts. In this process, glass wool is an essential material used for thermal insulation and noise reduction, however, its waste has generated an economic and environmental impact. With the objective of promoting the reduction of the waste of this raw material, a field research was carried out, with a qualitative approach, in the production line of a company in the Industrial Pole of Manaus (PIM), therefore, a case study. The methodology carried out consisted of four stages: observation of waste; root cause identification; planning and construction of a pneumatic prototype. After the results obtained, it was verified that the project is adequate to accomplish what it proposed, being possible to optimize the method of inserting the glass wool in the diffuser tube, allowing the absorption of the interference of these elements in the process, avoiding the waste of the raw material, cooperating with sustainability and cost reduction for the company.
Um sistema a prova de erros operacionais, aplicação do método POKA YOKE em uma ferramenta de fixação eletrônica
(2023-12-27) Pessoa, Everton Hipólito; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Mattos, Marcus Renato Pinheiro; http://lattes.cnpq.br/2890713359271807; Fialho, Michaella Socorro Bruce; http://lattes.cnpq.br/9348859124436505
This study examined the application of the Poka Yoke method in new fastening technologies within industrial manufacturing operations. The system was designed to be error-proof (Poka Yoke). The integration with smart electronic tool technology aimed not only to optimize the fastening process but also to ensure the correct execution of activities within the process. To achieve this, the Poka Yoke technique was applied in stages, also known as "Step Motion," to separate operations into stages and prevent errors in the fastening sequence. The development of error-proof operational systems proved to be a viable solution for achieving total quality in manufacturing processes, contributing to increased productivity in industrial processes by minimizing human errors and enhancing the efficiency and quality of products.
Sistema de combate a incêndios em depósito instalado no Polo Industrial de Manaus (PIM) – classificação e dimensionamento de sistema de hidrantes
(2022-07-12) Ribeiro, Eduardo Hayek; Reis, Ailton Gonçalves; http://lattes.cnpq.br/7119484789256081; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Oliveira Neto, Benjamin Batista de; http://lattes.cnpq.br/0355646329266825; Pinto, Camila da Costa; http://lattes.cnpq.br/5909706356694272; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530
The classification and design of the Hydrant System is inserted in the context of the firefighting system of buildings. It seeks to demonstrate a hydrant project for all types of deposits, classified according to Decree 24.054/2004. A methodology based on bibliographic research is used from materials such as books, technical standards and current legislation, forming a content base in order to investigate factors required for the adequacy of a fire project, bringing a research objective of an explanatory nature to identify and analyze such factors and describe their characteristics from an initial data collection of the building and consultations to the norms based on a broad and deep case study, detailing formulas, legislation and knowledge, in order to identify the determining factors for the conclusive occurrence of the project, explaining its causes and describing the required parameters. It was possible to conclude that the results obtained proved to be efficient and in line with approval by the Fire Department of the State of Amazonas.