水下无人系统学报 (Dec 2022)
Structure Design of A Novel Bionic Water-air Cross-Domain Vehicle
Abstract
In recent years, water-air cross-domain vehicles have become a research hotspot owing to their stereo cross-domain advantages. However, the design level of existing water-air cross-domain vehicles is limited, which hinders their popularization and application in an actual complex environment. Based on the bionic variant technology, a novel bionic structure of a water-air cross-domain vehicle is proposed in this paper. Two pairs of variant hydrofoils and folded air wings were designed based on the shape characteristics of the vehicle. Moreover, various actuators have been developed to realize the expansion and contraction of hydrofoils and air wings. To ensure the excellent performance of the vehicle in multi-mode, the hydrodynamic and aerodynamic performances of the undersea vehicle, water surface, and air modes were studied using computational fluid dynamics numerical simulation. The results show that the vehicle can achieve underwater running at a fixed depth, high-speed sailing on the water surface, and fixed-altitude flight in the air. The water-air cross-domain vehicle can not only realize cross-domain operation, but also has the advantages of underwater concealment and air mobility.
Keywords