Production Engineering Archives最新文献_第3页

Influence of the drill bit tip geometry on the rotary drilling process performed with a hand-held hydraulic drill 钻头尖端几何形状对手持式液压钻机旋转钻井过程的影响

IF 2.3

Production Engineering Archives Pub Date : 2023-08-28 DOI: 10.30657/pea.2023.29.35

Ł. Bołoz

{"title":"Influence of the drill bit tip geometry on the rotary drilling process performed with a hand-held hydraulic drill","authors":"Ł. Bołoz","doi":"10.30657/pea.2023.29.35","DOIUrl":"https://doi.org/10.30657/pea.2023.29.35","url":null,"abstract":"Abstract In the mining and construction industries, hand drills are used to carry out many processes related to excavation and auxiliary works. Hand drilling is commonly applied for making small diameter holes, especially in hard-to-reach places. In the case of manual drilling, an important parameter is drilling resistance, especially torque. Drilling tools are subject to wear, which has a negative impact on the process of drilling, including resistance and efficiency. A blunt tool lowers the drilling speed and puts more strain on the operator. The article presents the results of laboratory tests of selected parameters of the drilling process carried out with a hydraulic rotary drill. The tests were performed with the use of new drill bits as well as drills characterized by a various degree of wear. The tests were carried out for popular, frequently applied rotary drilling tools, on a unique laboratory stand that enabled setting the feed force and measuring the torque, rotational speed, drilling path, drilling speed as well as the in and out pressure of the drill. A number of characteristics were determined as a function of time and depth of the drilled hole. It was found that tool blunting affects the drilling process in various ways, whereas the intensity of this influence is determined by the type of blunting. The test results can provide a basis for developing a criterion for replacing a drill bit with a new one.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"304 - 310"},"PeriodicalIF":2.3,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45662164","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

Bearing capacity of reinforced concrete beams with and without damages of rebar 钢筋损伤和无损伤的钢筋混凝土梁的承载力

IF 2.3

Production Engineering Archives Pub Date : 2023-08-28 DOI: 10.30657/pea.2023.29.34

R. Khmil, Z. Blikharskyy, P. Vegera, N. Kopiika

{"title":"Bearing capacity of reinforced concrete beams with and without damages of rebar","authors":"R. Khmil, Z. Blikharskyy, P. Vegera, N. Kopiika","doi":"10.30657/pea.2023.29.34","DOIUrl":"https://doi.org/10.30657/pea.2023.29.34","url":null,"abstract":"Abstract The article presents the results of the bearing capacity of reinforced concrete beams with and without damages of internal reinforcement. One of the main elements of the production of the reinforced concrete industry is beams. The analysis of the experimental tests showed that the bearing capacity of reinforced concrete beams with damaged tensile main reinforcement decreases according to control undamaged samples due to the reduction of the reinforcement cross-section. However, the bearing capacity of reinforced concrete beams with tensile main reinforcement Ø20А500C, damaged to the cross-section area equal the rebar Ø16mm is more on 3.7… 24.0% than the bearing capacity of reinforced concrete beams with undamaged Ø16mm rebar. This is due to the non-uniform material properties of used thermally strengthened reinforcement A500C. When during testing the tensile main reinforcement is damaged by drilling a hole, the most damages occur in the core with lower physical and mechanical characteristics. In contrast, the outer thermally strengthened layer with bigger physical and mechanical characteristics is damaged to a lesser extent. The analysis of the obtained results shows that during design of reinforced concrete beams with damaged, it is necessary to consider using thermally strengthened non-uniform steel A500C as tensile main reinforcement.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"298 - 303"},"PeriodicalIF":2.3,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43841861","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

Ensuring efficiency of technical operation of equipment for workover operation 确保修井作业设备的技术操作效率

IF 2.3

Production Engineering Archives Pub Date : 2023-08-28 DOI: 10.30657/pea.2023.29.39

A. Buchynskyi, T. Romanyshyn, M. Buchynskyi, Lyubomyr Romanyshyn, M. Bembenek

{"title":"Ensuring efficiency of technical operation of equipment for workover operation","authors":"A. Buchynskyi, T. Romanyshyn, M. Buchynskyi, Lyubomyr Romanyshyn, M. Bembenek","doi":"10.30657/pea.2023.29.39","DOIUrl":"https://doi.org/10.30657/pea.2023.29.39","url":null,"abstract":"Abstract The priority of resources in the management system of influence on the system of technical operation of machines was evaluated. The proposed systemological model of information support for making managerial decisions regarding the technical operation of machines. The given analogy between the factors of technical influence and the resources required for this is substantiated. These are: “action” - “human resource”; “means” - “material resource”; “environment” - “information resource”. The priority of the information resource in ensuring the efficiency of the technical operation of the machines is determined by expert evaluation methods. The proposed systemological model consists of the structuring and systematization of information resources of dispatch reports and the procedure for performing further analytical procedures performed by information and analytical maintenance of enterprises with the help of software to obtain relevant information. Such continuous monitoring of equipment operation processes provides engineers with the necessary data for: the analysis and selection of an effective model of technical operation of the equipment; to develop alternative management decisions and make the optimal one; development of individual models and maintenance strategies with their adjustment and adaptation to real operating conditions. Also, this model provides professionals with a tool for comprehensive evaluation of the efficiency of the enterprise’s production organization, the dynamics of its development, and the consequences of management decisions in different periods. It makes it possible to make informed decisions regarding the improvement of the management system and the subsequent formation of an effective strategy for the technical operation of machines.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"337 - 347"},"PeriodicalIF":2.3,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48686487","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: 1

Applying Model Studies to Support the Monitoring of Methane Hazard during the Process of Underground Coal Mining 应用模型研究支持煤矿井下开采过程中甲烷危害监测

IF 2.3

Production Engineering Archives Pub Date : 2023-08-28 DOI: 10.30657/pea.2023.29.37

M. Tutak, Jarosław Brodny, P. Małkowski, Wes Grebski

{"title":"Applying Model Studies to Support the Monitoring of Methane Hazard during the Process of Underground Coal Mining","authors":"M. Tutak, Jarosław Brodny, P. Małkowski, Wes Grebski","doi":"10.30657/pea.2023.29.37","DOIUrl":"https://doi.org/10.30657/pea.2023.29.37","url":null,"abstract":"Abstract The process of underground mining is one of the most complex and hazardous activities. In order to maintain the continuity and efficiency of this process, it is necessary to take measures to reduce this hazard. The paper addresses this issue by presenting a developed methodology for using model studies and numerical simulations to support the process of monitoring methane hazards. Its basis is the developed model of the region of underground mining exploitation along with the ventilation phenomena occurring in it. To develop it, the ANSYS Fluent program was used, based on the finite volume method classified as computational fluid mechanics. The model reflects both the geometries and physical and chemical phenomena occurring in the studied area, as well as the auxiliary ventilation equipment used during operation. The research was conducted for two variants of methane emissions from goaf zones, the first of which concerned the actual state of the mining area, and the second of which concerned increased methane emissions from these goaf zones. The purpose of the study was to determine the distribution of methane concentrations in the most dangerous part of the studied area, which is the intersection of the longwall and the tailgate, as well as the distribution of ventilation air flow velocities affecting them. The studies for both variants made it possible to determine places particularly exposed to the occurrence of dangerous concentrations of methane in this region. The methodology developed represent a new approach to studying the impact of methane emissions from goaf zones into mine workings.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":" ","pages":"319 - 327"},"PeriodicalIF":2.3,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48790541","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

Using Data Envelope Analysis for Measurement of Entrepreneurial Network Performance in Manufacturing Firms 基于数据包络分析的制造业企业创业网络绩效测度

IF 2.3

Production Engineering Archives Pub Date : 2023-08-28 DOI: 10.30657/pea.2023.29.31

P. Tomski

{"title":"Using Data Envelope Analysis for Measurement of Entrepreneurial Network Performance in Manufacturing Firms","authors":"P. Tomski","doi":"10.30657/pea.2023.29.31","DOIUrl":"https://doi.org/10.30657/pea.2023.29.31","url":null,"abstract":"Abstract The aim of the paper is the analysis of the possibilities of measurement of entrepreneurial network performance in manufacturing firms, using Data Envelope Analysis (DEA) method – a non-parametric approach, allowing for the assessment of the effectiveness of the entrepreneur’s social networks in the context of generating information effects. The research uses data obtained from 30 randomly selected Polish enterprises to explore the levels of entrepreneurial networks and their information effects (as performance indicator). The research limitations are the following: the research is limited exclusively to Polish randomly selected entities, and the results cannot be generalized. The originality/value of this paper consists in the fact that this study constitutes both the contribution to the development of the discipline of management and practical guidelines for managers-entrepreneurs since it should be pinpointed that the recognition of the efficiency of gathering information from social networks can be the basis for the conscious creation of the effectiveness of acquiring information from social networks, and thus the conscious use of social networks in economic activity. The novelty of the results presented consists in filling the gap while conducting the research taking into account the assessment of entrepreneurial networks performance using DEA method.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"271 - 278"},"PeriodicalIF":2.3,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46921173","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: 1

The impact of Industry 4.0 implementation on required general competencies of employees in the automotive sector 实施工业4.0对汽车行业员工所需的一般能力的影响

IF 2.3

Production Engineering Archives Pub Date : 2023-08-28 DOI: 10.30657/pea.2023.29.29

A. Stareček, Z. Babeľová, N. Vraňaková, L. Jurík

{"title":"The impact of Industry 4.0 implementation on required general competencies of employees in the automotive sector","authors":"A. Stareček, Z. Babeľová, N. Vraňaková, L. Jurík","doi":"10.30657/pea.2023.29.29","DOIUrl":"https://doi.org/10.30657/pea.2023.29.29","url":null,"abstract":"Abstract In an effort to reduce operating costs and to increase the quality and efficiency of production, production organizations in the automotive sector are trying to implement the Industry 4.0 concept, which has become a phenomenon of the last two decades. These initiatives have a significant impact on the employees in production organizations, especially in automotive sector. The main aim of the presented study is to expertly assess the importance of general competencies for transforming job positions in the automotive industry in Slovakia. The starting point of the presented study were the results of research focused on emerging positions in the automotive industry and the competencies required by employers in Slovakia. Based on the expert assessment, the hierarchical structure of the solved problem was created and the importance of competencies for analysed job positions was assessed by applying the Analytical Hierarchical Process (AHP) method. The results pointed to the growing importance of non-technical competencies. Analyses have shown that actually the most important work competencies are: basic literacy, professional knowledge, problem solving, digital skills and analytical thinking. The development of the necessary competencies will be important both, from the point of view of employers, but also of employees working in professions that are in decline, become endangered and need to be transformed into the required professions.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"254 - 262"},"PeriodicalIF":2.3,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44137710","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: 1

Electrical properties for cold sprayed Nano copper oxide thin films 冷喷涂纳米氧化铜薄膜的电学性能

IF 2.3

Production Engineering Archives Pub Date : 2023-04-26 DOI: 10.30657/pea.2023.29.26

R. Muneer, A. Idzikowski, A. Al-Zubiedy

引用次数: 0

KPI tree - a hierarchical relationship structure of key performance indicators for value streams KPI树——价值流的关键绩效指标的层次关系结构

IF 2.3

Production Engineering Archives Pub Date : 2023-04-26 DOI: 10.30657/pea.2023.29.21

Alberto Bumba, M. Gomes, Cristiano Jesus, R. M. Lima

引用次数: 1

Changes in Cargo Movement due to the Effects of COVID-19 新冠肺炎影响下的货物运输变化

IF 2.3

Production Engineering Archives Pub Date : 2023-04-26 DOI: 10.30657/pea.2023.29.17

Kuninori Suzuki, Yoshihide Ikushima, Yoji Murayama

引用次数: 1

Potential autonomous vehicle ownership growth in Hungary using the Gompertz model 使用Gompertz模型，匈牙利自动驾驶汽车保有量的潜在增长

IF 2.3

Production Engineering Archives Pub Date : 2023-04-26 DOI: 10.30657/pea.2023.29.18

Anas Alatawneh, A. Torok

{"title":"Potential autonomous vehicle ownership growth in Hungary using the Gompertz model","authors":"Anas Alatawneh, A. Torok","doi":"10.30657/pea.2023.29.18","DOIUrl":"https://doi.org/10.30657/pea.2023.29.18","url":null,"abstract":"Abstract Autonomous Vehicles (AVs) are anticipated to bring forth a multitude of advantages for upcoming mobility.These potential benefits and many others vary substantially by the market share of AVs. There are several articles that investigated AV market share with a variety of methods, however, they show a huge variation depending on the market specifications. The aim of this research is to calculate private AV adoption rates over time depending on the Hungarian automobile market characteristics. The research empirically estimates, using the Gompertz function, the projected growth rates of private autonomous passenger vehicles in Hungary using historical patterns of human-driven vehicle ownership data on the basis of projected per capita GDP.The study's findings suggest that, in an optimistic and moderate scenario, the Hungarian car market is projected to become saturated due to AVs by 2067 and 2076, respectively. However, a pessimistic estimation indicates that saturation is unlikely to occur before 2100. This study’s contribution to the literature is through a mathematical approach that predicts AVs market penetration rate and saturation year, in which the assumptions and the used parameters of the model can be modified depending on different case studies, or they can be updated due to the advancement in technology and improvement in knowledge of the studied market.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"155 - 161"},"PeriodicalIF":2.3,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48708787","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: 4