Analysis of Solid-Fluid Interaction in Open Loop Skirt of an Air Cushion Vehicle

In this article a solid-fluid interaction in an open loop and finger skirt is considered. The combined loop and finger skirt takes advantage of flexibility of the finger and stability benefits of the loop. On the other hand, compare to the other skirt types, it is a difficult skirt to design. We consider the loop and finger skirt as a flexible structure which is in interaction with air flow. The gradual expansion and deformation of loop andfingers are important design parameters which are considered in this paper. We made a finite element analysis of the skirt system to find the large deformation and stresses of the skirt. Adjacent fingers are in contact and move with respect to each other. As a result we have a frictional contact problem. This phenomenal is also study in different cases using different loadings, and boundary conditions. Three dimensional (3D)geometrical model of the problem is considered. Different materials are also used in our analysis

کلیدواژه ها:

solid-fluid interaction ، air-cushion vehicle ، hovercraft ، skirt system ، open loop and finger skirt ، finite element analysis ، arbitrary Lagrangian–Eulerian (ALE) ،