“金属风暴”武器发射动力学建模与仿真

Modeling and Simulation of Launch Dynamics for ″Metal Storm″ Weapon

射击精度、发射安全性和动态设计手段缺乏是制约"金属风暴"武器发展的难题。基于多体系统传递矩阵法,从弹、炮、药武器系统的角度,建立了"金属风暴"武器多刚柔体系统发射动力学模型和发射动力学方程,解决了"金属风暴"武器固有振动特性计算和动力响应分析难题。编制了"金属风暴"武器发射动力学仿真程序,仿真得到了振动特性、内弹道、膛内运动、动力响应、射击密集度等,建立了武器动态性能与系统总体参数间的定量关系。研究结果为解决制约"金属风暴"武器发展的难题,为"金属风暴"武器动态设计、改进和性能提高提供了理论依据与技术手段。

Firing precision,launch safety and absence of dynamic design means are difficult problems,thus restricting the development of ″metal storm″ weapon.Based on transfer matrix method of the multibody system,from the viewpoint of the weapon system including projectile,gun,and propellant,a launch dynamics model of multi-rigid-flexible-body system and a launch dynamics equation of ″metal storm″ weapon are established,difficult problems of vibration characteristic computation and the dynamic response analysis are solved.A launch dynamics simulation program of ″metal storm″ weapon is written.Vibration characteristics,interior ballistics,motion in bore,dynamic response,exterior ballistics,and firing dispersion are obtaind by simulation.A quantitative relation between the dynamic performance and system parameters is established.Results provide a theory base and technical means for dynamic design,performance improvement,and solving difficult problems of the restricted development of ″metal storm″ weapon.