Self-propelled Guns Firing Kinetic Study

Based on multibody system transfer matrix method and taken a self-propelled artillery system as a example, A model for the launch dynamics of self-propelled artillery is established. The problems computing vibration characteristics of complex multibody system coupled among rigid bodies and flexible bodies is resolved, orthogonality augmented eigenvector are proved. The force acted on the system in the lauch process is analyzed. The dynamics equations of projectile moving in bore are obtained. Applying the theory of the two-phase flow interior ballistic, the overall dynamics equations and the arithmetic of the two-phase flow interior ballistic are formed. In this paper, by developing Fortran program, the vibration characteristic, the interior ballistic, the projectile motion in bore, the artillery's dynamic response, the projectile initial disturbance are simulated. Those results offer the necessary base for further researching firing accuracy of the self-propelled artillery.