the validity of the subsection simulation method is proved, in which postprocessing technology is widely used . the sixth, the static simulation is neces sarily to find out the dynamic system's initial state for dynamic simulation . the gun is looked upon as a hyper-equilibrium structure, and a so-called " parallel projection method " is brought forward for the gun's static simulation 提出了一种求解线性方程组的方法?平行投影法,针对adams对超静定系统静态分析不力的情况,研究了求解全炮静态问题的途径和方法,并应用平行投影法求解车体悬挂的初始平衡力,求得了较符合客观事实的解,从而完成了火炮发射前的静态分析。