Production Engineering Archives最新文献_第5页

Analysis of the Possibility of Introducing the Reduction of Changeover Time of Selected CNC Machines Using the SMED Method 采用SMED方法减少选定数控机床切换时间的可能性分析

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.10

B. Oleksiak, B. Ciecińska, Piotr Ołów, Małgorzata Hordyńska

引用次数: 1

Evaluation of selected properties and surface quality of cured pre-impregnated carbon-fiber fabrics after exposure to sulphuric acid 硫化预浸碳纤维织物暴露于硫酸后的选定性能和表面质量评估

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.1

T. Kojnoková, F. Nový, L. Markovičová, E. Harea

{"title":"Evaluation of selected properties and surface quality of cured pre-impregnated carbon-fiber fabrics after exposure to sulphuric acid","authors":"T. Kojnoková, F. Nový, L. Markovičová, E. Harea","doi":"10.30657/pea.2023.29.1","DOIUrl":"https://doi.org/10.30657/pea.2023.29.1","url":null,"abstract":"Abstract This paper deals with changes in selected properties of composite material and surface degradation after exposure to an acidic environment. A carbon fiber-reinforced composite (CFRP) produced from prepregs was tested. The weight change, micro-hardness, and surface degradation of the CFRP composite made of cured pre-impregnated laminates were evaluated in this study. Material consisting of a DT121R epoxy resin matrix with high reactivity and high viscosity, with two reinforcing carbon fabrics layers, is characterized by a low value of tensile strength. Evaluation of changes in the material properties was performed before and after exposure to specific environmental conditions, which are achieved by using a chemical solution of 15% H2SO4 at various temperatures. Subsequently, the effect of 15% H2SO4 at various temperatures on the material properties was monitored. The specimens were immersed in the solution for up to 3 and 6 weeks at the temperatures of 23°C, 40°C, and 60°C. It was found out, that the degradation of the composite material is conditioned by the aging of the epoxy resin (matrix). Carbon fibers (reinforcement) are relatively stable. The weight change, micro-hardness, and surface quality depend on the time of exposure to acidic solution and temperature. The micro-hardness tests show a significant influence on exposure time. The biggest changes in weight change and surface quality of the CFRP composite were observed after exposure at the temperature of 60°C.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"1 - 6"},"PeriodicalIF":2.3,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45444555","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

Influence of Structural Parameters - the Shape of Graphite and Matrix on Change of Ultrasonic Wave Propagation Rate and Value of Attenuation in Graphitic Cast Irons 石墨和基体形状对石墨铸铁中超声波传播速率和衰减值变化的影响

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.4

J. Belan, E. Tillová, M. Uhríčik, L. Pastierovičová

{"title":"Influence of Structural Parameters - the Shape of Graphite and Matrix on Change of Ultrasonic Wave Propagation Rate and Value of Attenuation in Graphitic Cast Irons","authors":"J. Belan, E. Tillová, M. Uhríčik, L. Pastierovičová","doi":"10.30657/pea.2023.29.4","DOIUrl":"https://doi.org/10.30657/pea.2023.29.4","url":null,"abstract":"Abstract Despite the tendency of the current industry, especially the automotive industry, it is to use modern, light and super-strong materials based on Al or HSLA steels, the application of classic materials such as cast iron still makes sense, especially concerning price and excellent castability. The article presents one of the possible ways of using the ultrasonic non-destructive method in quality control and simplification of the identification of the type of cast iron concerning the change of parameters of ultrasound propagation in materials. The main criteria for assessing the quality and determining the type of graphite cast iron were considered to be the rate of propagation of ultrasound - cL and the value of attenuation - α, which vary depending on the shape of the graphite and matrix. Graphitic cast irons with different graphite shapes (lamellar, vermicular, and globular shapes) and a matrix with different ferrite/perlite ratios were used as experimental material. Along with the ultrasonic tests, a metallographic analysis was also performed to quantify the microstructure of cast irons.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"23 - 27"},"PeriodicalIF":2.3,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42846057","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

Agile management in Polish organic food processing enterprises 波兰有机食品加工企业的敏捷管理

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.12

Szymon T. Dziuba, A. Szczyrba

{"title":"Agile management in Polish organic food processing enterprises","authors":"Szymon T. Dziuba, A. Szczyrba","doi":"10.30657/pea.2023.29.12","DOIUrl":"https://doi.org/10.30657/pea.2023.29.12","url":null,"abstract":"Abstract With expanding local, national, and international markets and changing customer expectations, enterprises are faced with the need to implement solutions to compete effectively. It is expected that agile management allows enterprises to achieve this objective. Therefore, many organizations, including those in the food sector, are taking advantage of agile management solutions and see changes in consumer behavior as an opportunity for growth. The present study has a theoretical and empirical character. The basis of the theoretical considerations is a critical analysis of the scientific literature on the concept of agility and its relevance to organizations. The diversity of perspectives on the problems of agility, highlighted in many publications, provided the basis for identifying a research gap and formulating a research objective and conducting an empirical study. The study describes the agile management of enterprises, indicates the characteristics and mechanisms applicable to organic food production, and characterizes organic food processing enterprises in Poland. The survey was conducted in 2021-2022 and allowed the authors to analyze the location, size, type of production, or capital in the enterprises. This was possible with a properly designed questionnaire and statistical analysis.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"101 - 107"},"PeriodicalIF":2.3,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48877041","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

Engineering and technical structures of the Zhinvali hydroengineering complex and assessment of the state of their management Zhinvali水利枢纽的工程和技术结构及其管理状态评估

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.6

G. Gavardashvili, M. Vartanov

引用次数: 0

Preparation and Characterization of a Novel Hyperbranched Polyester Polymers Using A2+B3 Monomers 新型A2+B3超支化聚酯聚合物的制备与表征

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.5

N. Al-Mutairi, A. Al-Zubiedy, A. Al-Zuhairi

{"title":"Preparation and Characterization of a Novel Hyperbranched Polyester Polymers Using A2+B3 Monomers","authors":"N. Al-Mutairi, A. Al-Zubiedy, A. Al-Zuhairi","doi":"10.30657/pea.2023.29.5","DOIUrl":"https://doi.org/10.30657/pea.2023.29.5","url":null,"abstract":"Abstract Compared to linear analogs, hyperbranched polymers (HBPs) have gotten much attention in the last decade because of their intrinsic globular topologies and distinctive features like low viscosity, high solubility, and a high degree of functionality. In this work, four types of hyperbranched polyester polymer HBPs have been synthesized using the A2+B3 polycondensation methodology. Firstly, the starting material B3 monomer (Pyrimidine-2,4,6-triol) has been synthesized using urea and malonic acid with the presence of sodium Na as the catalyst for the reaction. Secondly, four types of materials (tartaric acid TA, adipic acid AD, maleic acid MA, and phthalic anhydride PA) as A2 monomers were added to the starting material B3 monomer in an oil bath to prepare the four types of HBP. The chemical structure of HBPs was characterized by FTIR, and 1H-NMR. The molecular weight of the prepared HBPs was characterized by gel permeation chromatography GPC, and thermal properties were characterized by differential scanning calorimetry DSC and thermal gravimetric analysis TGA. FTIR results showed that there are new bands, such as C-O-C between A2 and B3 monomers, as indicated by 1H-NMR. In addition, GPC shows that the prepared polymers have a narrow molecular weight distribution with good thermal stability, as indicated by DSC and TGA.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"28 - 36"},"PeriodicalIF":2.3,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47806415","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

Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcement 组合配筋钢-混凝土梁应力-应变状态的数学建模

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.13

J. Selejdak, T. Bobalo, Y. Blikharskyy, I. Dankevych

{"title":"Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcement","authors":"J. Selejdak, T. Bobalo, Y. Blikharskyy, I. Dankevych","doi":"10.30657/pea.2023.29.13","DOIUrl":"https://doi.org/10.30657/pea.2023.29.13","url":null,"abstract":"Abstract Most of the modern computer software for the building structures‘ calculation is based on mathematical dependencies which make it possible to analyse rather complex stress-strain state of structures subjected to loading. As a rule, the calculation is based on the finite element method and is reduced to the calculation of deformations arising in structures due to the action of external forces with the use of real strain diagrams of materials, σ-ε diagrams for concrete and reinforcement. Modern normative regulations for reinforced concrete structures‘ calculation are also based on the deformation model using material deformation diagrams, which are as close to the real ones, as possible. Therefore, this study was aimed to investigate in more detail the stress-strain state and the physical essence of the processes occurring in reinforced concrete structures with combined reinforcement according to mathematical approaches and regulations of DBN B.2.6-98:2009 and DSTU B. In 2.6-156:2010. Namely, in the research is analysed the combined reinforcement of S245 steel tapes and A1000 rebar, which is used in the production of reinforced concrete elements. The results of mathematical modelling were compared with the calculation results, according to DBN B.2.6-98: 2009 and DSTU B. B 2.6-156:2010, as well as with field experimental data. Therefore, the conclusion could be made, whether it is possible to use this technique with sufficient accuracy to calculate reinforced concrete structures with combined reinforcement.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"108 - 115"},"PeriodicalIF":2.3,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41726523","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

Automated Design of Honeycomb Conformal Cooling Channels for Improving Injection Molding Quality 提高注塑质量的蜂窝状共形冷却通道的自动化设计

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.7

Yuan-Ping Luh, Chien-Chuan Chin, H. Iao

引用次数: 2

Supporting of manufacturer’s demand plans as an element of logistics coordination in the distribution network 支持制造商的需求计划，作为分销网络中物流协调的一个要素

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.9

Mariusz Kmiecik

{"title":"Supporting of manufacturer’s demand plans as an element of logistics coordination in the distribution network","authors":"Mariusz Kmiecik","doi":"10.30657/pea.2023.29.9","DOIUrl":"https://doi.org/10.30657/pea.2023.29.9","url":null,"abstract":"Abstract The paper deals with the concept of centralized demand forecasting and logistical coordination in distribution networks. The aim of the paper is to relate the results provided by the forecasting tools to the basic aspects of logistical coordination. The case of 29 distribution networks in which a logistics operator (3PL) operates and provides contract logistics services to a manufacturing company is analysed. The paper partially confirms the hypothesis of better testability of forecasts based on machine learning algorithms and artificial neural networks for demand planning by the logistics operator to the manufacturer in the framework of logistics coordination in the distribution network. These algorithms perform better for networks with high specificity of flows and food networks. Traditional algorithms, on the other hand, have their better share in creating forecasts for more standard distribution networks. Additionally, the second hypothesis regarding the positive influence of modern technological solutions (such as the use of cloud technologies, EDI and flow tracking standards) was confirmed. Additionally, a number of factors that did not have a direct impact on forecasting errors were detailed.","PeriodicalId":36269,"journal":{"name":"Production Engineering Archives","volume":"29 1","pages":"69 - 82"},"PeriodicalIF":2.3,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42788142","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

Concept of an innovative technological line for the processing of linear profiles 线性型材加工创新技术线的概念

IF 2.3

Production Engineering Archives Pub Date : 2023-02-15 DOI: 10.30657/pea.2023.29.2

Tomasz Gustowski, Waldemar Kurek, R. Grzejda

引用次数: 2