Research on the Deployment Process of Explosive-Driven Structures under the Condition of Projectile-Target Rendezvous

The deployment of complex structures under explosive driving is a key issue in the directional process of deployable directional warheads. Effectively controlling the deployment process is beneficial for controlling the detonation delay and improving the utilization rate of fragments. For the deployment problem of complex structures, based on the JWL equation of state and the second-order Lagrange equation, an explosive driving deployment model considering the expansion process of detonation products and the target hit state is derived from energy conservation. The calculation results of the driving deployment model are compared with the experiment results in the literature, and the accuracy of the calculation results of the explosive driving deployment model is verified. The results show that the theoretical results of the model are in good agreement with the experiment results, and can accurately predict the deployment time of structures under different charge amounts. By controlling the mass ratio of auxiliary charge 1 to auxiliary charge 2 at 1.5−1.7, the structure can be deployed to achieve optimal hit posture, which is more conducive to hitting the target. The research results can enrich the design theory of directional warheads and provide a reference for the design of deployable directional warheads.