不同持续射击发数对火炮身管寿命的影响  

Influence of Different Numbers of Rounds under Continuous Firing on Gun Barrel Life

作　　者：许耀峰 王军 刘朋科[1] 朱文芳[1] 杨雕[1] XU Yaofeng;WANG Jun;LIU Pengke;ZHU Wenfang;YANG Diao(Northwest Institute of Mechanical&Electrical Engineering,Xianyang 712099,Shaanxi,China)

机构地区：[1]西北机电工程研究所,陕西咸阳712099

出　　处：《兵工学报》2023年第4期1034-1040,共7页Acta Armamentarii

基　　金：军委科技委基础加强计划项目(2019-JCJQ-ZD-137);国防技术基础项目(JSZL2019208B002)。

摘　　要：火炮在服役过程中,面临不同弹种、不同装药(强装药、全装药、减装药、高温装药等),以及快速持续射击与性能检验射击,因此有必要研究不同弹种、不同装药及不同持续射击发数对火炮身管寿命的影响。目前身管寿命评定主要通过国家军用标准等效折算系数将不同弹药类型射弹数等效折算为标准弹药或规定配比的标准弹药,但现有国家军用标准身管寿命等效折算方法仅包含膛压、初速两个因素,未考虑持续射击发数对身管寿命的影响,导致无法有效评估火炮不同持续射击发数下的身管寿命。基于阿伦尼乌斯方程研究身管材料热化学烧蚀模型,分析发现不同持续射击发数对身管寿命具有重要影响,火炮持续射击发数越多,火炮身管寿命越低。通过对比某火炮不同持续射击发数下身管寿命仿真与试验结果,验证了身管热化学烧蚀模型对预测不同持续射击发数下火炮身管寿命的准确性。The artillery is used with different charges of different types of ammunition(strong charge,full charge,reduced charge,high temperature charge,etc.),and have to undergo rapid continuous firing and performance test firing.It is necessary to study the impact of different charges of different types of ammunition and the number of rounds under rapid continuous firing on the barrel life.At present,for the assessment of barrel life,the method used is mainly to convert the number of projectiles of different types of ammunition into that of standard ammunition or standard ammunition with a specified ratio through the equivalent conversion factor in the national military standard.The existing national military standard equivalent conversion method for barrel life only includes two factors,chamber pressure and muzzle velocity,and does not consider the impact of rate of fire and number of rounds on barrel life,which makes it impossible to effectively evaluate barrel life under different numbers of rounds under continuous firing.The thermochemical ablation model of barrel material is established based on the Arrhenius equation.The influence of different numbers of rounds under continuous firing on the barrel life is studied.The larger the number of rounds under continuous firing,the shorter the barrel life.The accuracy of the thermochemical ablation model is verified by comparing the simulation and test results.

关 键 词：火炮 身管寿命 持续射击发数 膛内温度 等效折算 

分 类 号：TJ304[兵器科学与技术—火炮、自动武器与弹药工程]