The digital thread for system lifecycle management with a native graph database in a polyglot architecture
Nico Kasper1, Michael Pfenning2, Martin Eigner3
1SAP SE, IBU Industrial Manufacturing and Aerospace & Defense, Germany; 2SAP SE, Product Management SAP PLM, Germany; 3EIGNER Engineering Consult, Germany
The Digital Thread is a system that connects different phases of the product lifecycle and the related data across one or more companies in the supply chain. This work aims to develop a graph data model of the Digital Thread, in the context of the vision of polyglot persistence, that interconnects the different phases of the lifecycle and their corresponding data models, processes, and IT systems. This work proposes a Digital Thread Graph that integrates a Digital Model and a derived Digital Twin, using object and relation attributes for view creation and filtering while minimizing redundancy.
Towards the digital factory twin – design guide for creating a 3D factory model
Jan-Philipp Disselkamp1, Robin Grothe1, Jonas Lick1, Ben Schütte1, Sascha Brüne1, Luca Schröder1, Roman Dumitrescu2
1Fraunhofer IEM, Germany; 2Paderborn University, Germany
Shorter product lifecycles are also leading to even shorter planning times for the development of production systems. In most companies, the restructuring is carried out within a few weeks during the annual holidays. Digital tools such as simulations or the digital twin are used to avoid delaying the restructuring during this time. However, the introduction of a 3D model of the factory is often the first point of failure for many companies. This article proposes a six-step process model that enables the transition from 2D to 3D design. The process model was evaluated in a research project.
Self-optimizing digital factory twin: an industrial use case
Christian Nigischer1, Florian Reiterer2, Sébastien Bougain1, Manfred Grafinger3
1Austrian Center for Digital Production, Austria; 2Nemak Linz GmbH, Austria; 3TU Wien, Austria
Digital Twins (DTs) are intended to be utilized for a wide range of applications, promising benefits like visualization, monitoring, simulation and control of a physical system. Not only the development of a DT for a production facility is a time-consuming task, but also to keep the virtual counterpart up to date in the use phase. In this work, the implementation of an industrial-scale DT of an automotive supplier production site based on a Discrete-Event Simulation (DES) model with self-optimization capabilities for easier maintainability and increased simulation accuracy is presented.
Digital twins to increase sustainability throughout the system life cycle: a systematic literature review
Malte Trienens1, Rik Rasor1, Aschot Kharatyan1, Roman Dumitrescu2, Harald Anacker1
1Fraunhofer IEM, Germany; 2Heinz Nixdorf Institute, Paderborn University, Germany
Sustainability is not a new trend, but a mandatory measure for responsible and environmentally conscious use of resources. The digital transformation offers new potential in engineering and competitive advantages for companies through innovative technologies like the digital twin. Based on digital twins, products can be optimized, and new business models can be developed. Long-term added value is generated for manufacturing companies and customers. This paper explores the benefits of digital twins in the context of sustainability. Current challenges and use cases of digital twins are analysed.
A survey on the industry’s perception of digital twins – a follow-up to the digital twin workshop at the DESIGN Conference 2022
Michel Fett1, Julius Zwickler1, Fabian Wilking2, Stefan Goetz2, Sebastian Schweigert-Recksiek3, Ben Hicks4, Oscar Nespoli5, Kristina Wärmefjord6, Sandro Wartzack2, Eckhard Kirchner1
1Technische Universität Darmstadt, Germany; 2Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany; 3em engineering methods AG, Germany; 4University of Bristol, United Kingdom; 5University of Waterloo, Canada; 6Chalmers University of Technology, Sweden
Digital Twins are perceived differently between and within industry and academia regarding applications and potentials. For this reason, a round table was formed based on the Digital Twin Workshop of the Design Conference 2022. One of the results of this round table is this contribution, which deals with a survey within the industry. The survey captured the understanding of the different roles in the creation and use of Digital Twins, the requirements and hurdles as well as the perception of methodological support. In addition, factors that influence the perception were identified.
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