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本文在综合考虑地面和摇架接合部弹性以及后制动器等因素的前提下,对某类前冲炮建立力学模型,把这类前冲炮由前冲-后座运动引起的强迫振动,处理为一个六自由度非线性系统的暂态振动问题。应用动静法导出运动微分方程组。选定计算方案,把问题化为在解十阶线性代数方程组的基础上,求解某个含十四个未知函数的一阶常微分方程组的初值问题。编制程序,在DJS—6机上进行数值计算。通过分析大量计算结果,对前冲炮的暂态强迫振动,尤其是在其过程中若干因素对前冲炮跳角和高低机力的影响,进行了详细的讨论。所述看法可供有关研究设计人员参考。
Based on the comprehensive consideration of the flexibility of the ground and the cradle joint and the rear brake, the mechanical model of a certain type of gun is established and the forced vibration caused by the forward-rearward movement of the gun is treated as Transient Vibration Problem of a Nonlinear Six Degree of Freedom System. Application of static and dynamic method to derive differential equations of motion. Based on the solution of the ten-order linear algebraic equations, we solve the initial value problem of a first-order ordinary differential system with fourteen unknown functions. Program, in the DJS-6 machine numerical calculation. By analyzing a large number of computational results, the transient forced vibration of the projectile gun, especially the influence of several factors on the hovering angle and the high and low mechanical forces of the projectile gun are discussed in detail. This view is for reference by the research designer.