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Extending and demonstrating an engineering communication framework utilising the digital twin concept in a context of factory layouts
University of Skövde, School of Engineering Science. University of Skövde, Virtual Engineering Research Environment. Global Industrial Development, Scania CV AB, Södertälje, Sweden. (User Centred Product Design (UCPD))ORCID iD: 0000-0002-7985-0010
University of Skövde, School of Engineering Science. University of Skövde, Virtual Engineering Research Environment. (User Centred Product Design (UCPD))ORCID iD: 0000-0002-7232-9353
University of Skövde, School of Engineering Science. University of Skövde, Virtual Engineering Research Environment. (User Centred Product Design (UCPD))ORCID iD: 0000-0003-4596-3815
Manufacturing Engineering Department, Volvo Car Corporation, Göteborg, Sweden.ORCID iD: 0000-0003-2138-937X
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2023 (English)In: International Journal of Services Operations and Informatics, ISSN 1741-539X, E-ISSN 1741-5403, Vol. 12, no 3, p. 201-224Article in journal (Refereed) Published
Abstract [en]

The factory layout is frequently planned in virtual environments, based on the experience of software tool users. This planning process is cumbersome and iterative to collect the necessary information, with a high risk of faulty inputs and updates. The digital twin concept has been introduced in order to speed up information sharing within a company; it relies on connectivity. However, the concept is often misunderstood as just a 3D model of a virtual object, not including connectivity. The aim of this paper is to present an extended virtual and physical engineering communication framework including four concepts: digital model, digital pre-runner, digital shadow, and digital twin. The four concepts are demonstrated and described in order to facilitate understanding how data exchange between virtual and physical objects can work in the future and having up-to date virtual environments enables simulating, analysing, and improving on more realistic and accurate datasets.

Place, publisher, year, edition, pages
InderScience Publishers, 2023. Vol. 12, no 3, p. 201-224
Keywords [en]
digital model, digital pre-runner, digital shadow, digital twin, factory layout
National Category
Production Engineering, Human Work Science and Ergonomics Other Computer and Information Science Information Systems Computer and Information Sciences
Research subject
User Centred Product Design; Virtual Production Development (VPD); VF-KDO
Identifiers
URN: urn:nbn:se:his:diva-22481DOI: 10.1504/IJSOI.2023.132345Scopus ID: 2-s2.0-85166580963OAI: oai:DiVA.org:his-22481DiVA, id: diva2:1753947
Part of project
Virtual factories with knowledge-driven optimization (VF-KDO), Knowledge Foundation
Funder
Knowledge Foundation
Note

CC BY 4.0

Alternativ/tidigare DOI: 10.1504/IJSOI.2023.10055937

This paper is a revised and expanded version of a paper entitled ‘Evaluating a digital twin concept for an automatic up-to-date factory layout setup’ presented at 10th Swedish Production Symposium (SPS2022), Skövde, Sweden, 26–29 April, 2022.

The authors gratefully thank the support of Scania CV AB, the Research School Smart Industry Sweden, and the VF-KDO Project (Virtual Factories with Knowledge-Driven Optimization) funded by the Knowledge Foundation in Sweden; this support made the research possible.

Available from: 2023-05-02 Created: 2023-05-02 Last updated: 2025-09-29Bibliographically approved
In thesis
1. Planning and designing manufacturing factory layouts: Applying multi-objective optimization and digital support
Open this publication in new window or tab >>Planning and designing manufacturing factory layouts: Applying multi-objective optimization and digital support
2024 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The overall objective of the planning and design process for a factory layout is to generate and assess layout design proposals and choose the alternative that enables the factory to operate according to set performance targets while providing a safe work environment. The factory layout is frequently planned and designed in a virtual environment. This facilitates creation, simulation, visualization, and assessing potential future outcomes of the factory setup, without the need of intervening with physical objects. However, the planning and design of factory layouts is typically based on the experience of the expert and software tool user undertaking the planning and design activity. The activity depends on information generated by several cross-disciplinary functions and experts in, for example, product development, process planning, resource descriptions, ergonomics, and safety. The information provided by these functions and experts is also frequently generated with several software applications and depends on the experience of the software tool user performing their specific activity. This experience-based, manual, and serial approach to plan and design factory layouts, considering a wide range of parameters, is a cumbersome, non-integrated, and subjective process with a high risk of human error and faulty inputs and updates. The aim of this research is to develop methods, demonstrators, and a framework to support multiobjective planning and design of factory layouts. The purpose is to bridge gaps between the cross-disciplinary functions and experts involved in the planning and design of factory layouts. The research presents and tests ways to assist the software tool user when performing factory layout tasks. One approach is by adding rules and regulations to resources and equipment in the virtual environment. Further, the research demonstrates how simulation-based multi-objective optimization can assist the planning and design of factory layouts, supporting the generation and assessment of a multitude of layout design proposals, based on defined objectives and constraints of factory layouts. The methods, demonstrators, and framework developed in the research enhance quality and objectivity and provide risk mitigation in the process of planning and designing factory layouts.

Abstract [sv]

Det övergripande målet med planerings- och designprocessen för fabrikslayouter är att generera och bedöma layoutlösningar och välja den lösning som uppfyller fastställda prestandamål samtidigt som en säker arbetsmiljö säkerställs. Fabrikslayouter planeras och designas oftast med hjälp av virtuella verktyg och miljöer, vilket möjliggör simulering, visualisering och utvärdering av potentiella framtida förslag långt innan de förverkligas fysiskt. Planering och design av fabrikslayouter baseras vanligtvis på erfarenheten hos de experter och mjukvaruanvändare som utför planeringsuppgifterna. Processen är ofta beroende av information från flera tvärdisciplinära funktioner och experter, såsom produktutveckling, processplanering, resursbeskrivningar, ergonomi och säkerhet. Informationen från dessa funktioner och experter genereras också med hjälp av olika mjukvaruapplikationer och bygger på den erfarenhet som experterna har inom sina respektive områden. Detta erfarenhetsbaserade, manuella och sekventiella tillvägagångssätt för att planera och designa fabrikslayouter, med hänsyn till ett brett spektrum av parametrar, är ofta en krävande, icke-integrerad och subjektiv process med hög risk för mänskliga fel samt felaktiga inmatningar och uppdateringar. Syftet med denna forskning är att utveckla metoder, demonstratorer och ramverk för att stödja tvärdisciplinär planering och design av fabrikslayouter. Målet är att överbrygga klyftorna mellan de funktioner och experter som är involverade i planerings- och designprocessen. Forskningen presenterar och testar sätt att assistera mjukvaruanvändare när fabrikslayoutuppgifter utförs. Ett exempel är att integrera regler och föreskrifter för resurser och utrustning i den virtuella miljön under layoutplaneringen. Vidare demonstreras hur simuleringsbaserad multivariabel optimering kan stödja planering och design av fabrikslayouter genom att möjliggöra generering och bedömning av ett flertal layoutförslag baserade på definierade mål och begränsningar. De metoder, demonstratorer och det ramverk som utvecklats inom forskningen förbättrar kvaliteten och objektiviteten och minskar riskerna i processen för planering och design av fabrikslayouter.

Place, publisher, year, edition, pages
Skövde: University of Skövde, 2024. p. 224
Series
Dissertation Series ; 62
Keywords
Factory layouts, cross-disciplinary, multi-objective, optimization
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
User Centred Product Design; VF-KDO
Identifiers
urn:nbn:se:his:diva-24728 (URN)978-91-987907-8-8 (ISBN)978-91-987907-7-1 (ISBN)
Public defence
2025-01-17, ASSAR stora scenen, Skövde, 09:00 (English)
Opponent
Supervisors
Funder
Knowledge Foundation
Note

This research was made possible by the research school Smart Industry Sweden and the Virtual Factory with Knowledge-Driven Optimization (VF-KDO) research profile project, both funded by the Knowledge Foundation via the University of Skövde and Scania CV AB. Their support is gratefully acknowledged.

Available from: 2024-11-22 Created: 2024-11-21 Last updated: 2025-09-29Bibliographically approved

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Lind, AndreasHanson, LarsHögberg, DanLämkull, DanSyberfeldt, Anna

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