Frontiers in Manufacturing Technology最新文献

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Ecosystem integration: the use of ontologies in integrating knowledge across manufacturing value networks 生态系统整合：使用本体论整合整个制造业价值网络的知识

Frontiers in Manufacturing Technology Pub Date : 2024-03-21 DOI: 10.3389/fmtec.2024.1331197

Michela Magas, Dimitris Kiritsis, María Poveda-Villalón, Lan Yang, Sten-Erik Björling, Andreas Rudenå

{"title":"Ecosystem integration: the use of ontologies in integrating knowledge across manufacturing value networks","authors":"Michela Magas, Dimitris Kiritsis, María Poveda-Villalón, Lan Yang, Sten-Erik Björling, Andreas Rudenå","doi":"10.3389/fmtec.2024.1331197","DOIUrl":"https://doi.org/10.3389/fmtec.2024.1331197","url":null,"abstract":"One of the greatest challenges in creating effective decision-making systems for connected enterprises is the management of cross-domain information. In manufacturing value networks where supply chains are increasingly intertwined, and closed-loop lifecycle management requires traversing several domains, ontologies are proving to be a reliable reference for cross-domain semantic interoperability. However, ontology development, implementation, and management are fragmented and difficult for new users of ontologies to grasp. This is a significant challenge in environments where ontologies are vital for managing effective data exchanges in complex industrial processes. The OntoCommons project has evolved an ontology ecosystem that aims to lower the entry barrier to using ontologies. Building on this ambition, we present a holistic approach to the integration and management of ontologies horizontally across manufacturing ecosystems, including the creation of reference documentation for manufacturing value networks and related standards, available tools for working with ontologies, and examples of vertical integration of knowledge from application level with domain-level and top-level ontology reference documentation. As a novel research direction, we propose a meta-level approach to ontology-driven knowledge management in manufacturing ecosystems. Based on evidence from recent breakthroughs, we present future and emerging research directions.","PeriodicalId":505030,"journal":{"name":"Frontiers in Manufacturing Technology","volume":" 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140222235","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

Prediction of fatigue life of geometrically deviated steam turbine blades under thermo-mechanical conditions 热机械条件下几何偏差蒸汽轮机叶片的疲劳寿命预测

Frontiers in Manufacturing Technology Pub Date : 2024-01-11 DOI: 10.3389/fmtec.2023.1338222

Makgwantsha Mashiachidi, Dawood Desai

{"title":"Prediction of fatigue life of geometrically deviated steam turbine blades under thermo-mechanical conditions","authors":"Makgwantsha Mashiachidi, Dawood Desai","doi":"10.3389/fmtec.2023.1338222","DOIUrl":"https://doi.org/10.3389/fmtec.2023.1338222","url":null,"abstract":"This study explores the intricate factors affecting the fatigue life of steam turbine blades, encompassing steam flow-induced bending, centrifugal loading, vibration response, structural mistuning, and temperature-dependent influences. By focusing on the significance of mistuned steam turbine blades with varying blade geometries due to manufacturing tolerances, this research has paramount relevance for the power generation industries. By employing finite element analysis (FEA) software, a simplified, mistuned, scaled-down steam turbine bladed disk model was developed, considering temperature-dependent material properties. Initial FEA provided insights into the vibration characteristics and steady-state stress responses, with numerical stress distributions evaluated, which were subsequently exported to Fe-Safe software for fatigue life calculations based on centrifugal and harmonic sinusoidal pressure loadings. By investigating the vibration characteristics and response to geometric blade variations, this study affirmed the reliability of the developed FEA model, with findings highlighting the pronounced sensitivity of fatigue life to blade length, width, and thickness variations, in this order. However, in order to validate the developed numerical models, analytical life cycle assessments were calculated, which exhibited a discrepancy of under 3.37%, reinforcing the applicability of the developed numerical methodology to real-world scenarios involving mistuned steam turbine blades experiencing manufacturing deviations in blade geometry.","PeriodicalId":505030,"journal":{"name":"Frontiers in Manufacturing Technology","volume":" 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139625884","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

Editorial: Rolling bearing optimization through innovative manufacturing processes 社论：通过创新制造工艺优化滚动轴承

Frontiers in Manufacturing Technology Pub Date : 2024-01-03 DOI: 10.3389/fmtec.2023.1352187

Florian Pape, J. T. Terwey, Oliver Maiss, Xinming Li

引用次数: 0