Equivalent stiffness modeling of wedge-shaped cabin sections based on similarity theorem

Abstract The cabin section of an amphibious aircraft undergoes intense hydrodynamic and aerodynamic loads during water take-off landing. These are crucial for its structural design strength analysis. Therefore, a impact test the is essential optimization. However, full-scale model costly time-consuming due to large size. This study proposes method that combines partial similarity equivalent based on theory. It constructs half-scale has stiffness model. reduces cost improves efficiency. First, simplified as wedge, components designed individually dimensional analysis equivalence validated by finite element simulation theoretical results. Then, conducted, mechanical responses models under static load compared contrasted. results show model’s can predict characteristics.