Research on Structural Design and Strength Performance Analysis of Unmanned Lifeboats

With the increasing frequency of water activities, traditional rescue methods have obvious deficiencies in efficiency and safety. This paper conducts research on the technical bottlenecks of unmanned lifeboats in structural design, strength analysis, and function realization, and proposes a new type of structural design that adopts symmetrical double buoys and hidden catamaran propellers, significantly improving navigation stability and maneuverability. At the same time, solar photovoltaic panels and wind generators are integrated to build a renewable energy system and extend battery life. The finite element analysis of the frame, buoy, and bottom plate through SOLIDWORKS verifies the rationality of the structure and materials. In terms of functions, automatic path planning is realized, and a three-dimensional search and rescue system is built by combining unmanned aerial vehicles (UAVs), searchlights, and cameras. It is also equipped with emergency medical equipment and rope-connected lifebuoys to form an integrated “search-rescue-first aid” mechanism. In the future, the application of lightweight materials and optimization of intelligent algorithms will be explored to promote the standardization and practical application of unmanned lifeboats.