Dynamic analysis of launchers on rubber tire vehicles

This article provides a novel approach for generating a set of differential equations (mathematical model) that characterizes the vibrations of a multiple launch rocket system fitted on a rubber tire vehicle during firing. The multibody mechanical theory employed in the model’s construction is highly precise and closely mirrors the actual battle model of a multiple launch rocket system. Unlike past study, this model reveals that each bullet is independently isolated inside each item to precisely analyze the launcher’s vibrations during sequential firing. This model improves the accuracy of assessing and evaluating the stability of the launcher in both single and multiple firing situations. The BM-21 battle vehicle was selected for simulation calculations and verification tests. The article delineates the oscillation principles of the launcher during the discharge of both single and multiple rounds, which have been empirically substantiated. The study results provide the basis for evaluating the firing stability of multiple launch rocket systems mounted on vehicles with rubber tires. This theoretical foundation is reliable and can act as a significant reference for designers during the design process. It seeks to improve the general framework of multiple launch rocket artillery systems and similar artillery systems.