Journal of Mechatronics Engineering最新文献

Discrete Event System Decision: an Approach to the Maintenance Based on Colored Petri Net 离散事件系统决策：基于彩色 Petri 网的维护方法

Journal of Mechatronics Engineering Pub Date : 2023-12-21 DOI: 10.21439/jme.v6i1.113

Josias Guimarães Batista, Maria Liliane Alves da Silva, Rejane Cavalcante Sá, Cícero Roberto Oliveira Moura

{"title":"Discrete Event System Decision: an Approach to the Maintenance Based on Colored Petri Net","authors":"Josias Guimarães Batista, Maria Liliane Alves da Silva, Rejane Cavalcante Sá, Cícero Roberto Oliveira Moura","doi":"10.21439/jme.v6i1.113","DOIUrl":"https://doi.org/10.21439/jme.v6i1.113","url":null,"abstract":"Industrial processes, over the years, need to be modernized to reduce costs and maintain product quality. In this context, new tools or techniques have been developed for such an event to further improve industrial processes and the quality of the manufactured product. This paper refers to the application of a graphical and mathematical modeling tool, in this case, the Colored Petri Net (CPN), applied to a corrective maintenance process of a conical machine in the textile industry. That is, thecorrective maintenance process is modeled as a discrete event system for decision-making to identify which task must be performed to perform corrective maintenance. It also presents the operation of CPN for the described process, the general concepts of maintenance applied to the textile industry, the theory about PN, as well as the modeling of the process. The results show the mathematical model of the PN and the CPN graph, modeled for the maintenance process, which will facilitate the understanding of the maintenance process, as well as solve future problems more quickly and with quality. Finally, it is concluded that the model carried out can be used as a decision-making system to facilitate the corrective maintenance process.","PeriodicalId":303991,"journal":{"name":"Journal of Mechatronics Engineering","volume":"23 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138948685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antipodal Vivaldi Antenna with Star Trek insignia-based side slot edge for ultra-wideband applications 用于超宽带应用的带有星际迷航徽章侧槽边缘的反足维瓦尔第天线

Journal of Mechatronics Engineering Pub Date : 2023-11-05 DOI: 10.21439/jme.v6i1.112

R. E. Figueredo, Alexandre Maniçoba de Oliveira, João Francisco Justo

引用次数: 0

A simple arithmetic mean to ensure the convergence of models based on Blade Element Momentum theory applied to Vertical Axis Wind Turbines simulations 基于叶片单元动量理论的一种保证模型收敛的简单算法均值在垂直轴风力机仿真中的应用

Journal of Mechatronics Engineering Pub Date : 2022-09-26 DOI: 10.21439/jme.v5i1.100

Francisco Cristovao Maia Gomes, Francisco Frederico dos Santos Matos, Luana Lemos Amaral

{"title":"A simple arithmetic mean to ensure the convergence of models based on Blade Element Momentum theory applied to Vertical Axis Wind Turbines simulations","authors":"Francisco Cristovao Maia Gomes, Francisco Frederico dos Santos Matos, Luana Lemos Amaral","doi":"10.21439/jme.v5i1.100","DOIUrl":"https://doi.org/10.21439/jme.v5i1.100","url":null,"abstract":"The computer models based on the Blade Element Momentum (BEM) theory are able to predict the aerodynamic performance of wind turbines with good accuracy and efficiency. However, these methods may present some convergence difficulties. This work presents the development of a methodology adopting arithmetic mean in situations of flow instability to ensure the convergence of BEM models applied to Vertical Axis Wind Turbines (VAWT) simulations. This methodology was used in the creation of a program written in Fortran, called FASTEEVSIM. Tests were conducted in a Darrieus wind turbine using NACA0018 and DU06W200 airfoils as blade profiles. A comparison of the results using the FASTEEVSIM with experimental data from well-known literature sources has been done in order to validate the method. When comparing the power coefficients obtained for two types of blade profiles, one symmetrical (NACA0018) and another asymmetrical (DU06W200), the final validationresults showed a mean square deviation of 3.62% and 6.09%, respectively. The results showed that the developed methodology can assist the convergence effectively and that the FASTEEVSIM program is able to predict the performance of VAWT, providing data close to experimental values in a simple and fast way.","PeriodicalId":303991,"journal":{"name":"Journal of Mechatronics Engineering","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121085052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retrofitting in Fabric Finishing Machine - Sanforizadeira 织物整理机的改造- Sanforizadeira

Journal of Mechatronics Engineering Pub Date : 2021-10-31 DOI: 10.21439/jme.v4i2.98

Madson do Nascimento Araújo, Josias Guimarães Batista, André Pimentel Moreira, Danielle Alves Barbosa, Linconl Lobo Da Silva

{"title":"Retrofitting in Fabric Finishing Machine - Sanforizadeira","authors":"Madson do Nascimento Araújo, Josias Guimarães Batista, André Pimentel Moreira, Danielle Alves Barbosa, Linconl Lobo Da Silva","doi":"10.21439/jme.v4i2.98","DOIUrl":"https://doi.org/10.21439/jme.v4i2.98","url":null,"abstract":"With the advancement of technology in all fields, mainly in the industrial sector, which is manifested in more modern and self-contained equipment. Many equipment in the industry are obsolete with the electrical and electronic parts, but the mechanical parts are in perfect condition and can often be used for a long time. This paper demonstrates the retrofitting of a fabric finishing machine (Sanforizadeira) in the textile process thet was obsolete. In these conditions, it became necessary to retrofit the automation system. Through the study of the machine and the process, involving the fields of production and mechanical maintenance, the critical points and the improvements that should be implemented were found, thus raising the materials needed to carry out the work. The automation system was modernized, the control panels were replaced and improvements were implemented. The final result was achieved through the objectives outlined in this work, guaranteeing the company a system with considerable improvements, with a reduction in the number of stops and time spent for maintenance. The results were demonstrated by the graphs of the maintenance indicators. Comparing the before and after retrofitting, the following indicators were analyzed for six months: Failure rate, with an average reduction of 50% in the failure rate per hour; Mean time between failures, showed an average increase of 140 hours in the prediction of the next failures; Average time to repair, presented an average reduction of thirteen minutes in the resolution of the failures; Availability, there was a 16% increase in the availability of the machine, leaving the indicator above 90% where the ideal is 100%. Finally, the total cost of the project represented only 9.5% of the total value of a new machine, being also considered a positive result for the work.","PeriodicalId":303991,"journal":{"name":"Journal of Mechatronics Engineering","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133220601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PROSPECTIVE ANALYSIS OF ALGAL BIODIESEL PRODUCTION 藻类生物柴油生产的前瞻性分析

Journal of Mechatronics Engineering Pub Date : 2021-09-21 DOI: 10.21439/jme.v4i2.97

M. Reis, M. E. M. Martinez, A. Vasconcellos

{"title":"PROSPECTIVE ANALYSIS OF ALGAL BIODIESEL PRODUCTION","authors":"M. Reis, M. E. M. Martinez, A. Vasconcellos","doi":"10.21439/jme.v4i2.97","DOIUrl":"https://doi.org/10.21439/jme.v4i2.97","url":null,"abstract":"This article aims to carry out an initial patent mapping of algal biodiesel. The production of algal biodiesel is one of the forms of third generation biodiesel; it is an environmentally friendly alternative energy whose main advantage is that it does not compete with food, as the algal biodiesel is produced from synthesized lipids by algae in growth using sunlight. The methodology used was the patent mapping by activity having as search criteria: the Espacenet database (“worldwide”); and, the keyword: biodiesel and algae and algal biodiesel. It was observed that about 80% of the family of patent documents referring to this technology were applied between 2007 and 2016 and that these documents were published mainly in China (34% of patent documents), followed by the United States (25% of patent documents) and thirdly, the World Intellectual Property Organization (WO), that is, the PCT's international patent application, which indicates an interest in protection in several countries (15% of patent documents). Concluding that China and the United States are the countries that invest the most in the development and protection of technologies related to the production of algal biodiesel, however, the interest in protection goes beyond these countries, since the interest in alternative energies is worldwide.","PeriodicalId":303991,"journal":{"name":"Journal of Mechatronics Engineering","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126936269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Study of the Leakage Current in Coated Insulators Under Salt-Fog Conditions 盐雾条件下涂覆绝缘子泄漏电流的实验研究

Journal of Mechatronics Engineering Pub Date : 2019-09-30 DOI: 10.21439/jme.v2i3.27

Hugo Linhares Dias Espinola, I. Lopes

引用次数: 0

Optimal control of a planar robot manipulator based on the Linear Quadratic Inverse-Dynamics design 基于线性二次逆动力学设计的平面机器人机械臂最优控制

Journal of Mechatronics Engineering Pub Date : 2019-07-30 DOI: 10.21439/JME.V2I2.25

Denis Mosconi, A. Siqueira, E. Fonseca

引用次数: 0

Computer vision systems in unmanned aerial vehicle: a review 无人机计算机视觉系统综述

Journal of Mechatronics Engineering Pub Date : 2019-07-30 DOI: 10.21439/JME.V2I2.26

Odilon L. C. Mendes, Giovanna Miceli Ronzani Borille

{"title":"Computer vision systems in unmanned aerial vehicle: a review","authors":"Odilon L. C. Mendes, Giovanna Miceli Ronzani Borille","doi":"10.21439/JME.V2I2.26","DOIUrl":"https://doi.org/10.21439/JME.V2I2.26","url":null,"abstract":"Inspections in areas of difficult access or hostile to the human, pattern recognition, surveillance and monitoring, are some of the many applications in with Unmanned Aerial Vehicles (UAV), can be a solution, opening up new perspectives for the use of this technology. The navigation and the position of the UAVs can be made by autonomous method through the computational vision, which is a technology of construction of artificial systems capable of read information from images or any multidimensional data and making decisions. This work presents a review of the use of computer vision systems by UAVs, with a focus on its many applications. The main objective is to analyze the latest technologies used for the development of computer vision in UAVs, through the tools of data search, information storage and, mainly, processing and analysis of data. The researches encompasses a publication of recent works, 2011 onwards, from the Science Direct portal. For each work were analyzed the objectives, methodology and results. Based in this analysis, was made a comparison between the techniques and their challenges. From this, future outlook scenarios of UAVs using computational vision are mentioned.","PeriodicalId":303991,"journal":{"name":"Journal of Mechatronics Engineering","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133879339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Non-traditional machining: a review on methods employed in advanced materials treatment 非传统加工:先进材料加工方法综述

Journal of Mechatronics Engineering Pub Date : 2019-04-22 DOI: 10.21439/JME.V2I1.24

B. Brasil, L. B. Moura, A. R. Rocha Neto

引用次数: 4

Parameter estimation of a lead-acid battery model using genetic algorithm 基于遗传算法的铅酸蓄电池模型参数估计

Journal of Mechatronics Engineering Pub Date : 2019-04-22 DOI: 10.21439/JME.V2I1.23

D. Freitas, Hugerles S. Silva, E. C. Neto, A. M. N. Lima

引用次数: 0