基于数值仿真的火炮身管压坑允许深度曲线精细化研究

Research on the Allowable Pit Depth Curve of Gun Tube Based on Numerical Simulation

火炮身管压坑允许深度曲线是战场判定受损身管能否继续使用的依据。在分析身管压坑允许深度曲线成因基础上,借助数值仿真方法研究了火炮射击条件变化对压坑允许深度曲线的影响。研究标明:目前使用的火炮身管压坑允许深度曲线存在较大的安全裕度,容易引起战场误判;不同射击条件下身管压坑允许深度曲线是不一样的;装药温度、装药号和药室增长量对身管压坑允许深度曲线有较大影响。

The allowable pit depth curve of the gun tube is the basis for determining whether the damaged tube can continue to be used on the battlefield. Based on the analysis of the allowable tube pit depth curve, the numerical simulation method is used to study the influence of the gun shooting condition change on the allowable pit depth curve. The study indicates that there is a large safety margin for the allowable pit depth curve of the currently used gun tube, which may lead to misjudgment of the battlefield. The allowable pit depth curve of the tube under different shooting conditions is different. The charge temperature, charge number, and chamber growth have a large effect on the allowable pit depth curve of the tube.