Structure Designation and Dynamic Model Analysis of Folding Wing for Underwater Vehicles

In this paper, a kind of folding wing is designed to facilitate the aerial deployment of underwater vehicles. The folding wing expands under the action of the torsion spring when the underwater vehicle enters the water. The geometric model of the folding wing is established, and then the expanding time of the folding wing is analyzed using MATLAB. The bidirectional fluid-structure coupling CFD simulation is performed on a part of the folding wing to obtain the lift and drag at different angles of attack. An expanding experiment of a structural unit was carried out to verify the performance of the folding wing.