Multi-Disciplinary Design of a Regional Hybrid Aircraft With Different Green Solutions

This study presents an advanced Multidisciplinary Design Optimization (MDO) tailored for the design of next-generation green aircraft, integrating innovative propulsion system. The MDO is based on an advanced Class III weight estimation method. Traditional Class I and II methods were inadequate for contemporary green aircraft, necessitating a sophisticated approach to accommodate new concentrated masses of the green propulsion system. The Asymmetric Subspace Optimization (ASO) method was employed to balance computational loads effectively across disciplines such as aerodynamics, structures, and propulsion systems. Preliminary results for a hybrid electric/traditional regional aircraft demonstrated significant performance improvements, optimizing design features for enhanced efficiency. The developed framework is versatile and extensible, enabling its application to other green propulsion systems, including configurations based on hydrogen fuel cells and hybrid-electric architectures.