本文对车轴压装应力从理论上和实验上进行了初步探讨。根据径向压力沿轮座匀布的受力模式,用有限单元法和光弹冻结法对平直的以及有应力缓和槽的压装车轴进行应力分析,由此了解到压装车轴的应力性质及其变形特征。所得实验结果与理论分析相符。作者对目前经常引用的关于压装车轴的轴向应力的分布提出了不同的看法。 In this paper, the axial compression stress is theoretically and experimentally discussed. According to the stress distribution of radial pressure along the wheel seat uniformly, the stress analysis of the flat and stress-relieved grooved loading axle by finite element method and photoelastic freezing method, Its deformation characteristics. The experimental results obtained are consistent with the theoretical analysis. The authors put forward different viewpoints on the distribution of axial stress for the press-fitted axles, which is often cited so far.