Experimental study on impact response of seaborne rocket launch platform

This paper presents a novel test method for evaluating the impact response of a seaborne launch platform. By simulating and analyzing the platform's impact response to develop a test plan, designing an assistive test device to enhance data accuracy, and conducting a shipboard test, we analyzed the launch platform's impact response during cold launch. Results show that during the ejection stage, the platform experiences a sudden acceleration peak that quickly attenuates. During ignition, the vibration acceleration response oscillates and fluctuates. The maximum structural impact response occurs below the launcher, gradually attenuating to the bow, stern, and sides of the ship, and propagating slowly along the captain's direction. The vibration acceleration response varies along different directions, with the highest response in the vertical direction and the lowest in the longitudinal direction. FE numerical analysis confirms the experimental results. This study provides reference data for the structural anti-impact design of seaborne launch systems.