Abstract: An iterative solution method for projectile-barrel coupling vibration problem is proposed for better numerical calculation of the projectile-barrel coupling vibration model. Through the kinetic analysis of the projectile-barrel coupling vibration, the continuous process of coupling vibration is discretized by discretizing the movement time of projectile in the barrel. Based on the theory of differential equations, the iterative method is used to solve the vibration of each point on the barrel when the projectile passes through the barrel, and then the continuous vibration caused by projectile moving is solved. Under the condition of the inertia effect of projectile and the curvature change of beam, constructing a stylized process for iterative solutions makes the method easier to implement numerical calculations. The proposed method is used to numerically solve the projectile-barrel coupling vibration model. The results show that this solution can quickly and effectively solve the problem of projectile-barrel coupling vibration.Key

Key words: projectile-barrelcoupling, iterativemethod, movingload, linearvibration