Research On Muzzle Vibration Characteristics And Muzzle Vibration Control Of Artillery

As one of the main weapons and equipment for military mobile operations,the cannon not only requires high power,high speed,strong attack and defense,but also requires good shooting stability and shooting accuracy.The vibration of the muzzle is a major factor in determining its shooting stability.Therefore,it is particularly important to study the vibration control of the muzzle during the firing process.In this paper,the problem of muzzle vibration of artillery is studied in depth.The vibration characteristics of artillery muzzle,the dynamic simulation of muzzle vibration and the active control of muzzle vibration are mainly studied.Based on the finite element algorithm and modal analysis theory,the finite element analysis software ABAQUS is used to mesh the landing part of the artillery,and the finite element mesh model is established.Through modal calculation,the inherent characteristics of the landing part model are analyzed,and its natural frequency and vibration mode are obtained,so as to study its vibration characteristics,which provides a theoretical basis for subsequent vibration control.Based on the theoretical basis of gun firing dynamics,the force of gun firing in the process of recoil and counter-recoil is analyzed.The rigid barrel is first flexible in the finite element software,and then imported into the multi-body dynamics simulation software ADAMS to establish a rigid-flexible coupling dynamic model of the upper part of the gun.The vibration response curve of the gun muzzle is obtained by dynamic simulation,and the vibration response law of the gun muzzle is analyzed.According to the muzzle vibration characteristics and vibration response law in the process of artillery firing,three active control schemes of artillery muzzle vibration are proposed,and different control schemes are studied and analyzed.Based on the traditional PID and fuzzy adaptive PID control theory,the control effects of different control schemes and different optimization algorithms are compared and analyzed by ADAMS and Matlab /Simulink co-simulation.The results show that the active vibration control scheme of adding actuators to the barrel and the high-level machine at the same time can effectively suppress the vertical vibration response of the artillery muzzle.The maximum force applied to the barrel and the high-level machine in this scheme is less than the maximum force applied to the barrel or the high-level machine alone,especially the maximum force applied to the barrel is reduced by about 50 %.The optimization rate of the fuzzy adaptive PID control algorithm in the vertical direction can reach about 70 %,which is 30 % higher than that of the traditional PID control algorithm,and has a good vibration reduction effect.The analysis of this paper provides an important theoretical basis for the research of artillery firing dynamics and active vibration control,and has important theoretical and engineering significance for improving the firing accuracy and operational requirements of artillery.