Publications

Digital twins of measurement systems are used to estimate their measurement uncertainty. In the past, virtual coordinate measuring machines have been extensively researched. Research on digital twins of optical systems is still lacking due to the high number of error contributors. A method to describe a digital twin of an optical measurement system is presented in this article. The discussed optical system is a laser line scanner mounted on a ...

Industry 4.0 is an emerging business paradigm that is reaping the benefits of enabling technologies driving intelligent systems and environments. By acquiring, processing and acting upon various kinds of relevant context information, smart automated manufacturing systems can make well-informed decisions to adapt and optimize their production processes at runtime. To manage this complexity, the manufacturing world is proposing the ‘Digital Twin’ ...

This article proposes a fast, lightweight and physics-based digital twin to estimate the real-time junction, case and heat sink temperatures of the switching device in a photovoltaic (PV) boost converter. A lookup table approach is used to model the electric behavior while a traditional Cauer approach is used for the thermal model. To extract the thermal resistances of the MOSFET layers and convection, a finite element method (FEM) simulation is ...

Digital twins, that is, system models that track a specific system instance, enable various new possibilities in the domains of industry 4.0 and Cyber-Physical Systems. At their core, they consist of models and large amounts of data. Those models often abstract away or linearize parts of the system. Thus, to correctly interpret the output data of the digital twin, one must reason about the model's valid operation region. This paper introduces an ...

There is an industry wide push for faster and more feature rich systems, also in the development of Cyber-Physical Systems (CPS). Therefore, the need for applying agile development practices in the model-based design of CPS is becoming more widespread. This is no easy feat, as CPS are inherently complex, and their model-based development is less suited for agile development. Model-based development does suit the concept of digital twin, that is, ...

Transparency and information exchange are important parts of synchromodality that
contribute to better overview of options when tackling delays, dynamic switching, and handling
of unexpected events that affect delivery lead-times and costs. The most challenging aspect
when making decisions in a complex adaptive dynamic system, is the ever-changing
environment as we introduce more flexibility which may lead to more ...

Providing therapies tailored to each patient is the vision of precision medicine, enabled by the increasing ability to capture extensive data about individual patients. In this position paper, we argue that the second enabling pillar towards this vision is the increasing power of computers and algorithms to learn, reason, and build the 'digital twin' of a patient. Computational models are boosting the capacity to draw diagnosis and prognosis, ...

© Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. All rights reserved. The use of digital twins and simulation models to construct, evaluate and validate designs has become an intrinsic part of every product creation process. The use in production, operation and service has been increasing in the last years, for example model ...

Designing a production process such as thermoforming for thermoplastic composites might be challenging as it requires material characteristics at high temperatures. Material characterization tests (e.g., bias extension) in the molten state can encounter several difficulties, one of the most important ones is maintaining a uniform temperature distribution on the sample. Accordingly, during this research, a set of thermal tests has been initially ...