A Novel Folding Wing Design and Locking Performance Analysis

Aiming at the problem that the wing size of shipborne and airborne aircraft is restricted by the launching platform, and to further improve the flight performance of the aircraft, a novel folding wing structure is designed. Considering various factors in the design, the double torsion bar driving device is utilized to drive the folding wing with the large lift surface, the unfolding mechanism is set on the leeward surface to increase the space utilization rate and reduce the thermal load, and the spring bayonet mechanism is applied to lock the unfolding wing. In particular, in order to study the influence of the amount of spring bayonets on the locking performance of the folding wing after unfolding, a simulation analysis was carried out using ADMAS software. The results show that two spring bayonets can achieve effective locking of the outer wing, and three spring bayonets can improve the reliability of the locking mechanism while ensuring the locking of the wing. Finally, dynamic simulation analysis and ground test of the folding wing system were carried out. The simulation and test results verify the rationality and feasibility of the structure. The results show that the entire structure can ensure the synchronous driving of multiple torsion bars, in addition, rapid deployment and reliable locking can be achieved.