As solar technology advances and costs drop, solar-powered aircraft gain prominence in aviation. Efficiency limits of solar panels pose challenges for single-wing aircraft, necessitating a large wing area to house panels and meet payload needs. Scaling up. However, brings various challenges. In order to solve the contradiction between the lack of energy because small scale solar UAV cannot lay enough solar panels, and the low stiffness and stability of large scale UAV, which are prone to deformation. This paper proposes a combination of drones that take off from the ground and combine in the air. CFD analysis and verification mechanism are used for the aerodynamic characteristics and structural characteristics of the unit and the assembly. The results show that the tandem-wing configuration of the unit exhibits advantages in lift coefficient, stability margin, and pitch stability. And the assembled structure demonstrates favorable aerodynamic effects, and the increased aspect ratio of the overall design significantly enhances the lift-to-drag ratio, effectively boosting the aircraft’s cruising capabilities. Additionally, the triangular tandem-wing layout provides both the structural and geometric foundation for the two-dimensional expansion of the aircraft. This contrasts with large-sized single-wing drones and effectively mitigates issues stemming from excessive deformation in this proposal. The experimental verification ultimately confirmed the high feasibility of the aerial modular separation.
Long-endurance Solar-powered Unmanned Aerial Vehicle Based on Modular Composite Design.
08.12.2023
1019690 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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