Navegando por Autor "Maciel, Paulo Fernando Figueiredo"

Agora exibindo 1 - 11 de 11

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 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
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.
Aplicação da ferramenta FMEA na máquina de sangrar freio numa indústria automobilística de duas rodas
(2023-08-01) Iwata, Bruno Hiroshi Nakamura; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Pinto, Camila da Costa; http://lattes.cnpq.br/5909706356694272; Queiroga, Alberto Luiz Fernandes; http://lattes.cnpq.br/9632649964503729
Given the growth of competitiveness in the industrial scenario, the existence of maintenance management is essential for increasing asset reliability and availability. Thus, ReliabilityCentered Maintenance (RCM) suggests a structured methodology for conducting maintenance management with a focus on preventive actions. Therefore, this study proposes the use of the Failure Mode and Effect Analysis (FMEA) tool in a brake bleeding machine of a two-wheeler automotive industry. The main objective of this work is to reduce failure time and increase the Mean Time Between Failures (MTBF) of the respective machine. To determine the machinery to be applied in the tool, a survey was conducted on four machines that had the highest records of unplanned maintenance in the year 2021, and thus, the one with the greatest impact was chosen. For this process, the FMEA table was filled out with the main components of the machine, indicating their function, the main failure modes and effects, as well as the classification of the priority index for each item, through risk assessment. Subsequently, the existing preventive maintenance plan was reviewed and reformulated based on the analysis. Additionally, the necessary materials were acquired and scheduled replacements were carried out according to the established work schedule. The implementation of the methodology contributed to the optimization of maintenance plans, as well as a 70.4% reduction in corrective failure time compared to the initial analyzed period.
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.
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.
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 de
In 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%.
Plano de Manutenção, Operação e Controle (PMOC)
(2022-12-7) Nogueira, Edson Thomas Fernandes da Cruz; Castro, Cristóvão Américo Ferreira de; http://lattes.cnpq.br/4930257608461492; Castro, Cristóvão Américo Ferreira de; http://lattes.cnpq.br/4930257608461492; Arruda, Gutembergue da Silva; http://lattes.cnpq.br/8833717823163756; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530
Projeto de uma máquina alimentadora de tarugos
(2022-08-20) Costa, Eduardo de Souza; Maciel, Paulo Fernando Figueiredo; Fialho, Michaella Socorro Bruce
This 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.
Redução dos defeitos de forjamento com melhorias no processo
(2022-12-19) Silva, José Wilson Araújo da; Arruda, Gutembergue da Silva; http://lattes.cnpq.br/8833717823163756; Arruda, Gutembergue da Silva; http://lattes.cnpq.br/8833717823163756; Maciel, Paulo Fernando Figueiredo; http://lattes.cnpq.br/0169675639305530; Pinto, Camila da Costa; http://lattes.cnpq.br/5909706356694272
Modern industry times have brought with them a growing need to reduce costs, primarily as a fundamental basis for companies' survival but also as part of the UN Agenda 2030 through the Sustainable Development Goals (SDGs), which proposes 17 goals, which unfold into 169 goals, with a focus on overcoming the main development difficulties faced by the citizens of the 193 nations affiliated to the organization, aiming to promote sustainable growth globally by the year 2030. Considering the laws that guide the ZFM (Manaus Free Trade Zone) that companies installed in the Industrial Pole of Manaus need to comply, the present work developed aimed to reduce waste with scrapped parts in a company in the metallurgical industry that provides parts for the two-wheelpole, promoting through studies such as this the corporate vision of the company, by the year 2038, make its manufacturing processes suitable for sustainable development pillars. As part of the company's vision, several improvements have been carried out in various sectors of the company, including the forging sector, where this work has been focused. The study aimed to reduce the amount of scrapped parts of various defects studied during the hot forging process in open matrix of products in the manufacturing line of parts called ABC ( fictitious name), aiming to reduce forging defects and in addition to reducing the incidence of defects, we also sought to reduce the financial impacts for the company with the purchase of raw material (steel) and ingeneral of the process, as matrizes, matricelubricant (demoulding), OEE, among other items, increasingly bringing the company to the molds of the UN SDGs.
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.