某迫击炮身管寿命分析及预测  

Analysis and Prediction of the Service Life of a Mortar Tube

作　　者：杨雕[1] 陈志坚 刘朋科[1] 曾志银[1] 衡刚[1] 

机构地区：[1]西北机电工程研究所,陕西咸阳712099 [2]解放军边防学院,陕西西安710108

出　　处：《火炮发射与控制学报》2017年第4期87-91,共5页Journal of Gun Launch & Control

摘　　要：针对某型迫击炮身管材料由炮钢更换为钛合金后的身管寿命问题,通过对炮钢与钛合金材料的疲劳性能试验与理论分析,评估两种材料下的身管疲劳寿命。并以最大允许发射速度,在实弹射击试验及数据拟合分析的基础上,建立了火炮初速随射弹发数的表征关系,依据国军标判据预测了钛合金身管的弹道寿命。In response to the important problem of the life span of a mortar tube material made of tita- nium alloy instead of steel, the fatigue life of the tube was estimated through the fatigue performance test and theoretical analysis of the steel and titanium alloy material. With the maximum allowable trans- mission speed, the representative relationship between the initial velocity and the number of the projec- tile was established through the analysis of the experiment and the data fitting. Ballistic life span of ti- tanium alloy material tube was predicted according to GJB.

关 键 词：身管寿命 断裂韧度 疲劳寿命 弹道寿命 

分 类 号：TJ31[兵器科学与技术—火炮、自动武器与弹药工程]