A Simulation-Coupled Concurrent Engineering Approach to Next-Generation Low-Cost Counter-UAV Missiles

Abstract

Abstract. The activities are based on the Sagittarius project, which introduces a simulation-coupled concurrent engineering framework for the preliminary design of a low-cost surface-to-air missile aimed at countering small hostile drones. The methodology integrates guidance, propulsion, aerodynamics, structures, and lethality within a unified workflow, enabling continuous exchange of boundary conditions and performance constraints across subsystems. Trajectory simulations are employed to validate the missile performance against representative mission scenarios, while warhead lethality and structural analyses are iteratively harmonized with aerodynamic and propulsion requirements to maintain design coherence. A reference case involving a target UAV flying at 60~m/s, positioned 8000~m from the defended zone and 5000~m in altitude, was used to assess nominal behavior and off-design robustness. Results demonstrate that the integrated workflow achieves consistent performance and high kill probability across different operational profiles, highlighting the benefits of multidisciplinary coupling in early-stage design. The proposed approach emphasizes the importance of scenario-driven, simulation-based interaction between subsystems as a key enabler for affordable and adaptable Counter-UAV missile solutions.