Several unique challenges arise in the new field of integrations between Model-Based Systems Engineering (MBSE) models and game-based digital twin visualizations. First, no known standardized interfaces between the MBSE model and game engine visualization are defined, which can lead to custom or stove-piped solutions. Second, the converting and optimizing of CAD-based 3D models into formats sufficient for high-performance game execution can be time consuming. Finally, visualizing digital twin models in true to life scale is insufficient with typical desktop computers and interaction methods can be a challenge. The MB-SimViz prototype, funded by the US Army Program Executive Office (PEO) Aviation, seeks to solve a subset of the challenges.

Progress of the MB-SimViz prototype is covered in the paper. Determining the feasibility and challenges of rapidly visualizing changes to an MBSE model in a 3D game engine is the goal of the prototype. Research was performed to visualize part of an unmanned aerial system ground control station in 3D using the Unity game engine. The Scalable Control Interface (SCI) MBSE model, developed by PEO Aviation, is used to drive the digital twin of the ground control station through a set of virtual reality (VR) controls. Users can visualize, analyze, and test human machine interaction of the 3D models in VR prior to real-world system changes using the prototype. Finally, the recommended interfaces between the MBSE model and 3D engine, lessons learned, and future areas of research are presented in the paper.

Keywords
AUGMENTED AND VIRTUAL REALITY (AR/VR), HEAD-MOUNTED DISPLAYS, SIMULATIONS

Additional Keywords
MBSE, Digital Twins