结构阻尼是结构动力分析的重要参数之一，运用有限元方法研究实心和空心滚子在冲击载荷作用下的动态响应，并用傅立叶变换处理自由衰减中不同起点的两段相同长度的数据，求得滚子的结构阻尼，分析了滚子在不同冲击载荷、结构参数和材料参数下的阻尼特性。通过对滚子本身结构阻尼特性的研究，为轴承的振动研究提供了理论基础。

Structure damping is one of the important parameters in the structure dynamic analysis. The dynamic response of the solid roller and hollow roller under the impacting load is investigated by finite element method. Two same lengths of data from the different starts in free attenuation curve are processed by Fourier translation, and the structural damping of roller is obtained. In the paper the damping properties is detailedly analyzed when roller is in the different condition of impacting loads, structure parameters and material parameters. The research on the structural damping of roller provides theoretical foundation for the vibration analysis of bearing.