Automated Generation of as-manufactured geometric Representations for Digital Twins using STEP

Digital Twins enable the analysis of systems under real world conditions using multiphysics models, sensors and bidirectional data connections between the digital and the physical twin. At the core of the Digital Twin lies the three-dimensional geometric representation of the system. The paper presents a method to enhance the level of symmetry between real and virtual space and create geometric twins of parts. The proposed method unifies the 3D CAD model with selected real measurements to generate as-manufactured geometric representations. The generation is automated using modification algorithms and based on the STEP data format of the international standard for product data representation and exchange (ISO 10303).