基于单参数灵敏度方法的轨道炮系统性能影响因素分析

Analysis of Influencing Factors of Railgun System Performance Based on Single Parameter Sensitivity Method

为确定电磁轨道炮系统性能具体受哪些影响因素的牵制,提出基于单参数灵敏度方法的轨道炮系统性能影响因素分析方法。对电容驱动型固体电枢轨道炮系统运行不同阶段的能量分布进行说明,明确评价系统性能采用的指标,并通过相关数学模型确定系统性能影响因素,利用Matlab/Simulink数学工具箱搭建系统仿真模型,通过合理地设置参数初值与对设定几种参数的离散取样实现仿真过程。仿真结果表明:除轨道几何尺寸外,电枢质量、电容器初始充电电压、电容器电容值等参数对系统性能均存在较大影响,并且不同参数与系统性能之间不是简单的线性关系,在实际应用中应根据具体情况对不同参数选用合适取值。

To determine which factor constrains railgun system performance specifically, putting forward an analysis method for the factors with the single parameter sensitivity analysis method. This paper explained the energy distribution at different operation stages of a capacitor-driven railgun system with a solid armature, and cleared the indicators used in evaluating system performance, and also determined the factors that affected system performance by mathematical model, and then built system simulation model by using Matlab/Simulink math toolbox, and at last realized simulation process by setting initial parameters and discrete sampling of them properly. Simulation results show that： the track geometry addition, the armature mass, the initial capacitor charging voltage, the capacitance value of the capacitor parameters a greater impact on system performance are present, and is not a simple linear relationship between different parameters and system performance, in practice applications should choose the appropriate values for different parameters depending on the circumstances.