Uncertainties in the Synthetic Data Generation for the Creation of Bridge Digital Twins

Abstract

Digital twins (DTs) are virtual replicas of physical assets that can be used to monitor and manage their performance. To date, the DT concept has been effectively implemented in various industries, including aeronautics, manufacturing, medicine, and more recently, in the architecture, engineering, and construction sector. In the latter, these assets can be related to buildings, bridges, or other important infrastructures of the built environment. Although the creation of synthetic benchmark datasets for the validation of novel damage detection approaches has been attempted in the past, such alternatives are not easily findable or accessible. Thus, a new synthetic data generation framework is proposed within the DT paradigm context, that can produce FAIR benchmark databases that are characterized by Findability, Accessibility, Interoperability, and Reuse. This paper aims at exploring the uncertainty types, sources, and quantification approaches involved in the synthetic data generation methodologies and tools of the intended framework which could be used as a faster and cheaper alternative to real monitoring, for the creation and development of DT prototypes of bridges for both industry and research-oriented purposes. This work also highlights the benefits and drawbacks of implementing synthetic data for these purposes and points out tentative future improvements in the field.

Synthetic Data Generation for the Creation of Bridge Digital Twins What-if Scenarios

“…The framework considers both epistemic and aleatory uncertainties, which are key features to be accounted for in the validation process of any newly developed technology. The uncertainties component of the framework is presented and discussed in more detail in another study of the authors [33].…”

Industry 5.0 concepts and enabling technologies, towards an enhanced conservation practice: systematic literature review protocol

“…That system should continuously produce data on the asset’s structural, environmental, and operational conditions (“physical asset”). Major challenges in creating Industry 4.0 digital twins include: i) lack of interoperability among different software used in the digital twin model generation; ii) unclear guidelines for creating macro-digital twins integrating individual asset models, and iii) absence of Findable, Accessible, Interoperable, and Reusable (FAIR) benchmark databases suitable for digital twin prototyping development and validation 7 , 8 .…”