Advanced Collaborative Aircraft Design: Complementing CPACS with Knowledge-Based Engineering and Custom Geometry Parametrization

Kurzfassung

This paper presents an advanced workflow for collaborative aircraft design, extending the Common Parametric Aircraft Configuration Schema (CPACS) with knowledge-based engineering and custom geometry parametrization. By integrating domain-specific tools through the parametric modeling framework grunk, we offer a flexible solution to enhance CPACS’s capabilities. Two approaches are demonstrated: the integrated plugin approach, where all tools are available as grunk plugins, and the recipe export approach, where domain-specific tools generate parametric models, called grunk recipes. These methods enable the seamless combination of standardized data models with custom parametric extensions, improving collaboration and automation in multidisciplinary design processes. We exemplify the presented process by applying geometric modifications from both the CAD kernel OpenCascade Technologies and the knowledge–based engineering framework Codex to an existing CPACS model.