BIO-INSPIRED SOLAR-POWERED 3-D PRINTED BLENDED WING UAV

ABSTRACT: This paper presents the design and development of a bio-inspired, solar-powered, 3D-printed blended wing unmanned aerial vehicle (UAV) to improve aerodynamic efficiency, structural performance, and flight endurance. Inspired by bird flight, the UAV uses a blended wing body (BWB) design, integrating the wing and fuselage to minimize drag, optimize lift, and increase internal space for payloads. Fabricated with lightweight PLA via 3D printing, it allows precise production of complex geometries and rapid prototyping. Solar panels on the upper wing surface harness renewable energy, extending flight duration. Bio-inspired features, including tapered wings, smooth surface transitions, and optimized sweep angles, enhance aerodynamic stability, while carefully selected internal infill patterns balance strength and weight. Ground testing and controlled flight trials validate performance and durability. This work highlights the potential of combining bio-mimicry, additive manufacturing, and solar energy to create efficient, sustainable UAV platforms for surveillance, environmental monitoring, and aerial data collection.