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Digital twins : understanding the added value of integrated models for through-life engineering services
ID Vrabič, Rok (Author), ID Erkoyuncu, John (Author), ID Butala, Peter (Author), ID Roy, Rajkumar (Author)

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Abstract
Digital twins are digital representations of physical products or systems that consist of multiple models from various domains describing them on multiple scales. By means of communication, digital twins change and evolve together with their physical counterparts throughout their lifecycle. Domain-specific partial models that make up the digital twin, such as the CAD model or the degradation model, are usually well known and provide accurate descriptions of certain parts of the physical asset. However, in complex systems, the value of integrating the partial models increases because it facilitates the study of their complex behaviours which only emerge from the interactions between various parts of the system. The paper proposes that the partial models of the digital twin share a common model space that integrates them through a definition of their interrelations and acts as a bridge between the digital twin and the physical asset. The approach is illustrated in a case of a mechatronic product - a differential drive mobile robot developed as a testbed for digital twin research. It is demonstrated how the integrated models add value to different stages of the lifecycle, allowing for evaluation of performance in the design stage and real-time reflection with the physical asset during its operation.

Language:English
Keywords:digital twin, modelling, multi-domain model
Work type:Article (dk_c)
Typology:1.08 - Published Scientific Conference Contribution
Organization:FS - Faculty of Mechanical Engineering
Year:2018
Publication status in journal:Published
Article version:Publisher's version of article
Number of pages:f. 139-146
Numbering:Vol. 16
PID:20.500.12556/RUL-106464 This link opens in a new window
UDC:004.9(045)
ISSN on article:2351-9789
DOI:10.1016/j.promfg.2018.10.167 This link opens in a new window
COBISS.SI-ID:16492059 This link opens in a new window
Publication date in RUL:25.02.2019
Views:730
Downloads:327
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Record is a part of a proceedings

Title:Proceedings of the 7th International Conference on Through-life Engineering Services
COBISS.SI-ID:16492315 This link opens in a new window

Record is a part of a journal

Title:Procedia manufacturing
Publisher:Elsevier B. V.
ISSN:2351-9789
COBISS.SI-ID:5557311 This link opens in a new window

Secondary language

Language:Slovenian
Keywords:digitalni dvojček, modeliranje, večdomenski model

Projects

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P2-0270
Name:Proizvodni sistemi, laserske tehnologije in spajanje materialov

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