Design Of an Unmanned Surface Vehicle and Flow and Structural Analysis of Its Hull

The functionality of Unmanned Surface Vehicles (USVs) relies on sophisticated engineering processes that enhance both hydrodynamic efficiency and structural strength. This research introduces a comprehensive approach to validate the design of a distinctive 7-m-long V-type trimaran hull created in SolidWorks, using multifield analyses conducted on the ANSYS platform. The main innovation of this study is its integrated engineering strategy, which extends beyond a single discipline and directly transfers flow pressure data from a computational fluid dynamics (CFD) analysis to the structural analysis phase to replicate realistic maritime conditions. The hull was designed with a sharp-bottomed V-type trimaran configuration to minimize drag at high speeds and improve stability in rough seas, and its hydrodynamic performance was confirmed through CFD analyses. Using these validated data, static structural analyses were performed to assess the hull's resistance to external forces, employing Von Mises stress and total deformation data to create a detailed optimization guide for critical areas. Additionally, modal analysis was carried out to investigate the effects of environmental vibrations on structural behavior. In line with national defense industry objectives, this study provides an innovative framework for future USV development projects by integrating design, fluid dynamics, and structural mechanics into a unified process.