According to the design requirements of a missile tail folding and unfolding mechanism,a transverse tail fold-ing and unfolding mechanism was designed.The motor process of tail unfolding was researched and analyzed and the mathe-matical model was established.The movement of the tail driven by torsional spring was analyzed by ADAMS dynamic simu-lation software,and the finite element analysis software ANSYS Workbench was used to do the dynamics simulation analysis of the unlocking of the tail and the collision of the tail when the missile was launched from the box.The simulation results showed that the design scheme of the folding mechanism met the design requirements.
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