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Digital Factory for Product Customization: A Proposal for a Decentralized Production System 32nd

Digital Factory for Product Customization: A Proposal for a ...

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32nd International Conference on Flexible Automation and Intelligent Manufacturing

作者： Castro, Helio Camara, Fernando Camara, Eduardo Avila, Paulo Polytech Porto ISEP Rua Dr Antonio Bernardino Almeida 431 P-4249015 Porto Portugal INESC TEC Rua Dr Roberto Frias P-4200465 Porto Portugal

ISBN: (纸本)9783031382406;9783031382413

The digitalization and evolution of information technologies within the industry 4.0 have allowed the creation of the virtual model of the production system, called Digital Twin, with the capacity to simulate different scenarios, providing support for better decision-making. This tool not only represents a virtual copy of the physical world that obtains information about the state of the value chain but also illustrates a system capable of changing the development of productive activity towards personalized production, extending product versatility. Decentralized production seeks to respond to these needs because it allows the agglomeration of several services with different geographic locations, promoting the sharing of resources. This paper proposes an architecture for the development of a digital platform of personalization and decentralization of production based on sharing of sustainable resources. With a single tool, it is possible to define the entire production line for a product.

关键词： Industry 4.0 Product Customization Decentralized Production

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Challenges to Lean 4.0 in the Pharma Supply Chain Sustainability 32nd

Challenges to Lean 4.0 in the Pharma Supply Chain Sustainabi...

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32nd International Conference on Flexible Automation and Intelligent Manufacturing

作者： Tetteh, Michelle Grace Jagtap, Sandeep Gupta, Sumit Raut, Rakesh Salonitis, Konstantinos Cranfield Univ Sch Aerosp Transport & Mfg Sustainable Mfg Syst Ctr Cranfield MK43 0AL Beds England Amity Univ Amity Sch Engn & Technol Dept Mech Engn Noida 201313 UP India Natl Inst Ind Engn NITIE Dept Operat & Supply Chain Management Mumbai 400087 Maharashtra India

ISBN: (纸本)9783031381645;9783031381652

The Pharma sector is increasingly under pressure to improve the sustainability of supply chains, as consumers and regulators require greater transparency, efficiency, and accountability. Although Lean 4.0 has created a lot of buzz in the organization, the pharmaceutical sector faces challenges in implementing it. The main goal of this literature review is to identify the challenges of Lean 4.0 for the sustainability of the pharma supply chains (PSCs). A series of papers extracted from the most relevant scientific databases, including the Web of Science, Scopus, Google Scholar, and ProQuest was analyzed and synthesized from 2007 to 2022. 31 articles were used in the study. The findings of the study indicate that challenges include financial, staff experience and specialization, ongoing maintenance, resources for generating new skills and experiences, employees, and partners' resistance to changes in regulations, and cyber-hacking of key information. The results will facilitate future work by practitioners and researchers and make an important contribution to existing knowledge.

关键词： Industry 4.0 Lean 4.0 pharma supply chain sustainability

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Data Fabric: A Concept for Enhancing Data Management in Manufacturing 33rd

Data Fabric: A Concept for Enhancing Data Management in Manu...

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33rd International Conference on Flexible Automation and Intelligent Manufacturing

作者： Trattnig, Stephan Bauer, Johannes Schneider, Daniel Daub, Ruediger TUM TUM Sch Engn & Design Inst Machine Tools & Ind Management Iwb Boltzmannstr 15 D-85748 Garching Germany Fraunhofer Inst Casting Composite & Proc Technol Technol Zentrum 2 D-86159 Augsburg Germany

ISBN: (纸本)9783031744815;9783031744822

As manufacturing companies continue to adopt digital transformation, leveraging production data can significantly improve performance and drive innovation. Industrial Internet of Things technologies can help harness this data but they struggle with the complexity introduced by typical data sources in manufacturing. Different protocols, device semantics and inconsistent data standards lead to fragmented and inaccessible data. These obstacles prevent the seamless transfer of data from production resources to data-driven use cases, requiring manual effort to effectively use the data. To address this problem, this paper proposes a novel approach to data management based on the Data Fabric concept, which uses linked data principles to streamline data integration. By characterizing data pipelines from source to sink, consolidating metadata into a central knowledge graph, and employing an operational framework for configuring and managing these pipelines, our approach enhances data transparency and discovery. Utilizing this comprehensive strategy, we achieve the seamless provisioning of data for the implementation of data-driven use cases and provide a transformative solution for efficient and optimized data management in manufacturing.

关键词： Data Fabric Industrial Internet of Things Manufacturing Data Management Knowledge Graph Edge Computing

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Flow and Heat Transfer Analysis of Hybrid Nanofluid over a Rotating Disk with a Uniform Shrinking Rate in the Radial Direction: Dual Solutions 14th

Flow and Heat Transfer Analysis of Hybrid Nanofluid over a R...

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14th International Conference on Computational Heat and Mass Transfer (ICCHMT)

作者： Arifin, Norihan Md Yahaya, Rusya Iryanti Pop, Ioan Ali, Fadzilah Md Isa, Siti Suzilliana Putri Mohamed Univ Putra Malaysia Inst Math Res Serdang 43400 Selangor Malaysia Univ Putra Malaysia Dept Math & Stat Serdang 43400 Selangor Malaysia Babes Bolyai Univ Dept Math Cluj Napoca 400084 Romania Univ Putra Malaysia Ctr Fdn Studies Agr Sci Serdang 43400 Selangor Malaysia

ISBN: (纸本)9783031666087;9783031666094

Rotating machinery, gas turbine rotators, and air cleaning equipment are some industrial and electronic applications of hybrid nanofluids as heat transfer fluids. Considering these potential applications, the axisymmetric flow of a hybrid nanofluid towards a permeable rotating disk with a uniform shrinking rate is analyzed in the current study. Nonlinear ordinary differential equations and boundary conditions are generated, using Von Karman's transformations, from the governing partial differential equations and boundary conditions. Then, a sophisticated bvp4c solver containing finite difference code is utilized for solving the boundary value problem numerically. Following the discovery of dual solutions, only the first solution is stable. Besides that, the magnitude of the local skin friction coefficient is found to increase with the rise of shrinking and injection parameters. However, the augmentation of the shrinking and injection parameters reduces and enhances the local Nusselt number.

关键词： Disk Hybrid Nanofluid Injection Dual Solutions

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Two-Step Post-processing Treatment to Improve Additive Manufactured AlSi10Mg Surface Finish 3rd

Two-Step Post-processing Treatment to Improve Additive Manuf...

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3rd International Conference on Advanced Surface Enhancement (INCASE)

作者： Huang, Yinsong Tan, Yong Teck ASTAR Singapore Inst Mfg Technol SIMTech 2 Fusionopolis WayInnovis 08-04 Singapore 138634 Singapore ASTAR Adv Remfg & Technol Ctr ARTC 3 Cleantech Loop01-01 CleanTech Two Singapore 637143 Singapore

ISBN: (纸本)9789819986422;9789819986439

Additive manufactured (AM) aluminum alloys show good performance as lightweight critical parts for different industrial applications. However, the poor surface finish of as-printed parts due to the "Staircase Effect" is an obstacle to the implementation of AM for industry practice. In this study, a two-step post processing technique was developed to improve surface finish of 3D-printed AlSi10Mg. In the first step, the as-printed AlSi10Mg sample was chemically etched to remove the outer skin oxide layer and the dangling loose powder particles;in the second step, the chemically treated sample was electrochemically polished in an alkaline electrolyte to further smoothen the surface. The surface morphology of treated and reference parts were observed with SEM;the surface roughness (Ra) was measured with stylus profilometer to understand the smoothening mechanism and the effects of the process parameters. After this post processing treatment, the Ra was found to be typically decreased by at least 50%, for a much-improved surface finish.

关键词： Additive manufacturing Post-processing technique Chemical polishing Electrochemical polishing

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Hydrogen and Temper Embrittlement Effects on Fatigue Fracture Behaviour of 2.25Cr-1.0Mo Nuclear Reactor Pressure Vessel Steel

Hydrogen and Temper Embrittlement Effects on Fatigue Fractur...

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Saudi International Conference on Nuclear Power engineering (SCOPE)

作者： Islam, M. A. Bangladesh Univ Engn & Technol BUET Dept Mat & Met Engn Dhaka 1000 Bangladesh

ISBN: (纸本)9783031643613;9783031643620

The Reactor Pressure Vessel known as RPV is an essential element of nuclear power plants. The vessel is a robust container with a thick wall that is designed to endure the internal pressure resulting from the activity of the reactor. This also serves a crucial function in establishing a requisite barrier to prevent the dispersion of radioactive substances into the surrounding environment. When evaluating the functional requirements, high strength lowalloy (e.g., 2.25Cr-1Mo) steel is typically a suitable choice for fabricating the vessel. The working environment for the RPV is very harsh. Due to neutron bombardment the steel vessel, especially around reactor core, becomes hard and loses its ductility due to build-up of dislocations. Radiation can cause secondary and tertiary changesin microstructures. The working temperature (order of 300 degrees C) also favours carbide precipitation as well as trace element segregation at various microstructural sites. The situation is further aggravated by the phenomenon known as hydrogen embrittlement (HE). The purpose of this study is to investigate how the classical temper embrittlement (TE) due to segregation of trace elements (like phosphorus and sulphur) alone or in combination with HE embrittlement changes the fatigue crack growth rate and morphologies of the fracture surfaces of 2.25Cr-1.0Mo pressure vessel steel under both pre- and post-thermal exposure conditions. The experimental findings indicate that both HE and TE mechanisms play an important role in augmenting the propagation of fatigue cracks, as well as altering the fracture morphology, which need to be considered in design and fabrication of less susceptible RPV via customizing the chemical compositions and various microstructural features of the steel used.

关键词： 2.25Cr-1.0Mo steel Temper embrittlement Hydrogen embrittlement Fatigue Fracture Crack growth

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Review of Neutronics, Thermal-Hydraulic, and Fuel Performance Research of Accident Tolerant Fuels for APR-1400 in United Arab Emirates Nuclear Power Plants

Review of Neutronics, Thermal-Hydraulic, and Fuel Performanc...

引用

Saudi International Conference on Nuclear Power engineering (SCOPE)

作者： Alzarooni, Asma Alrwashdeh, Mohammad Chaudri, Khurrum Saleem Alameri, Saeed A. Khalifa Univ Sci & Technol Dept Mech & Nucl Engn POB 127788 Abu Dhabi U Arab Emirates Khalifa Univ Sci & Technol Emirates Nucl Technol Ctr ENTC POB 127788 Abu Dhabi U Arab Emirates

ISBN: (纸本)9783031643613;9783031643620

TheUAE's nuclear energy program, which began in 2008 with the publication of the "UAE Policy on the Peaceful Use of Nuclear Energy" document, has prioritized the safe, reliable, and economic operation of its APR-1400 nuclear power plants at Barakah. Following the Fukushima accident, the development of Accident Tolerant Fuels (ATFs) has become a focus in the nuclear fuel research and development community. ATFs are designed to withstand a significant loss of active cooling in the reactor core for a longer period, resulting in increased safety compared to the existing fuel system while maintaining or improving normal operation performance. The purpose of this study is to investigate the feasibility of using ATFs as nuclear fuel in the APR-1400 nuclear power plants (BNPPs) and assess their impact on the plant's safety and operation parameters. To accomplish this goal, a variety of analyses and assessments will be necessary, including neutronics, thermal-hydraulic, thermo-mechanical/chemical, and fuel performance analyses for multiple candidate ATF concepts. The investigation will focus on the APR-1400 reactor, which is the reactor of choice in Barakah plants. The study aims to provide a review of ongoing research and potential ATF concepts for use in the near future in APR-1400 nuclear power plants.

关键词： Accident Tolerant Fuel Neutronics Thermal hydraulics Thermomechanical

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Comparison of Laser Coordinate Measurements and Hierarchical Multiscale Finite Element Models for the Cup Drawing of Three Commercial Aluminum Alloys 14th

Comparison of Laser Coordinate Measurements and Hierarchical...

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14th International Conference on Numerical Methods in Industrial Forming Processes (NUMIFORM)

作者： Ricardo Pichardo, Diego Angel Ramirez, Miguel Kestens, Leo A., I Van Bael, Albert Schouwenaars, Rafael Univ Nacl Autonoma Mexico Dept Mat & Manufactura Fac Ingn Edificio OAve Univ 3000 Ciudad De Mexico 04510 Mexico Univ Nacl Autonoma Mexico Fac Estudios Super Aragon Ctr Tecnol Aragon Av Rancho Seco S-N Cd Nezahualcoyotl 57130 Estado De Mexic Mexico Univ Ghent Dept Electromech Syst & Met Engn Technol Pk 46 B-9052 Ghent Belgium Delft Univ Technol Dept Mat Sci & Engn Mekelweg 2 NL-2628 CD Delft Netherlands Katholieke Univ Leuven Dept Mat Engn Kasteelpk Arenberg 44Box 2450 B-3001 Leuven Belgium

ISBN: (纸本)9783031580086;9783031580062;9783031580055

Cup drawing is a benchmark experiment frequently used to validate anisotropic constitutive models and multiscale crystal plasticity codes for yield locus prediction. Earing of the cup rim and thickness variation along the cup wall are sensitive to plastic anisotropy. This test was implemented on an industrial forming press and applied to 85 mm diameter disks of commercial AA1100, AA3103, and AA5005 alloy sheet. Cup geometry was determined using a laser probe coordinate measurement machine (CMM). Finite element models (FEM) were developed with ABAQUS Explicit software and a user-defined subroutine for the anisotropic yield locus based on the hierarchical multiscale model (HMS). As the coordinate cloud produced by the CMM is unrelated to the nodes of the deformed FEM-mesh, both were fitted to a polynomial-Fourier series expansion. After cleaning and correction of the CMM data, point-by-point comparison can be performed between model and experiment. For AA1100, the position of the ears was correctly identified but their magnitude was underestimated. Excellent coincidence was found for AA5005, with strong ears at 0 and 90 degrees. The small ears at -30 degrees and 30 degrees and secondary ears at 90 degrees were correctly predicted for AA3013.

关键词： Cup drawing Aluminum alloy Coordinate measurement Yield locus Multiscale modeling

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Optimization of the Heat Transfer Simulation Time During 3D Printing of PLA Material 14th

Optimization of the Heat Transfer Simulation Time During 3D ...

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14th International Conference on Numerical Methods in Industrial Forming Processes (NUMIFORM)

作者： Benie, Kandy Cherouat, Abel Barriere, Thierry Placet, Vincent Univ Technol Troyes Lab Automat Generat Meshing & Adv Methods UR GAMM 12 Rue Marie Curie F-10300 Troyes France Univ Bourgogne Franche Comte Dept Appl Mech DMA CNRS UFC ENSMM UTBM FEMTO ST Inst 24 Chemin Epitaphe F-25000 Besancon France

ISBN: (纸本)9783031580086;9783031580062;9783031580055

This work focused on optimizing the simulation time for heat transfer during the Fused Deposition Modeling process, which is necessary for a recent tensile property optimization study mentioned in the literature. The approach for optimizing the simulation time involved conducting a comparative analysis of various mesh sizes and simulation step times, assessing their influence on the resulting temperature profiles. The heat transfer simulation of the printed material was done with COMSOL Multiphysics FEA and the normal and extremely fine meshes as well as the simulation step times of Delta t = 0.01 and 0.05 s were considered. The results showed that all the combinations resulting from these simulation parameters were equivalent in terms of both temperature profile results and the results of the tensile property optimization study, but that the simulation time was minimized by using the normal mesh with.t = 0.05 s with a simulation time ten times shorter than in the case of the extremely fine mesh with Delta t = 0.01 s.

关键词： 3D Printing Heat Transfer Simulation Time

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The Effect of Wheel Rotation on the Rolling Noise Predictions 14th

The Effect of Wheel Rotation on the Rolling Noise Prediction...

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14th International Workshop on Railway Noise (IWRN)

作者： Knuth, Christopher Squicciarini, Giacomo Thompson, David Univ Southampton Inst Sound & Vibrat Res Southampton SO17 Hants England

ISBN: (纸本)9789819978519;9789819978526

The effect of the wheel rotation on its sound radiation in rolling noise predictions is investigated. The wheel response is modelled using a finite element model that can account for the different effects introduced by rotation and together with TWINS the radiated sound power is determined. Noise and vibration data are compared over a range of typical train speeds, between a stationary wheel, a rotating wheel where rotation is replaced by a moving load, and a rotating wheel that also includes the inertial forces. Compared with the most complete model, differences in the wheel sound power level of up to 6 dB in one-third octave bands are found if the stationary wheel is used instead. The differences remain below 2 dB for speeds up to 500 km/h if the rotation is approximated with a moving load. In terms of the total A-weighted sound power level of the wheel, the stationary wheel underestimates the noise by up to 3 dB, while the differences are less than 1 dB for a moving load. Generally, the differences introduced by the approximate representations of the wheel rotation are smaller than the uncertainties that are inevitable in rolling noise predictions. The results show that in rolling noise predictions for usual train speeds the wheel rotation is sufficiently well approximated by a moving load, which is the method implemented in TWINS.

关键词： Rolling noise Wheel rotation Moving load Sound radiation

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