火炮身管失效机理和寿命预测

Failure Mechanism and Life Prediction of Gun Barrel

针对身管寿命预测这个长期研究的难点问题,概括了当前预测身管寿命的主要方法和模型,并对各自的特点和不足进行了分析。鉴于传统身管寿命预测技术不能准确预测身管失效时间,根据身管损伤状况、外壁面应变和射弹数(寿命)的内在联系,提出了基于身管外壁面应变变化量的身管寿命预测方法。

Aiming at the difficult point in the long-term research on the life prediction of gun barrel, this paper summarized the methods and models of the life prediction of gun barrel, and analyzed the characteristics and shortcomings. In view of the traditional life prediction methods could not accurately assess the failure time of gun barrel. According to the relationship among the barrel health, outside surface strain and rounds （barrel life）, a way of life prediction of gun barrel which based on strain variation was put forward.