当前火炮后坐与复进冲击运动计算基于一维准定常理论，导致制退机液压阻力求解偏离实际较大，并且无法反映制退机内流场分布与流体流动特性。在实际结构下的制退机二维模型基础上，通过MATLAB与FLUENT协同仿真技术，实现了火炮后坐、复进冲击完整过程的数值模拟。将仿真结果与试验结果进行对比，验证了该方法的可行性和有效性，为改进火炮后坐与复进运动计算提供了一种新思路。
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