本文分析了几个航炮零件在运动渐变状态工作过程中取得的计算载荷。然后对这些零件进行有限元法和光弹法的应力分析,并对它们的结果进行了对比研究。为了核对,对一些点取得了电测应力的数值。几种情况所得结果比较一致,表明结果是可信的;这种用有限元法和光弹法结合起来,研究武器构件的应力分布规律的方法,是值得推荐的。 This paper analyzes the calculated load of several cannon parts during the gradual change of motion. Then the stress analysis of these parts by finite element method and photoelastic method is carried out, and their results are compared. For verification, the values ​​of the electrical test stress were obtained for some points. The results obtained in several cases are consistent, indicating that the result is credible. This method combining the finite element method with the photoelastic method to study the stress distribution law of the weapon component is worthy of recommendation.