矿山机械产品可靠、无故障的长期工作很大程度上取决于其动力特性，因此，研究矿山机械的动力特性对于其结构的合理设计已非常必要。研究机械结构动力特性有理论建模和试验分析法。近些年来，试验方法的应用越来越广，尤其对大型复杂结构，理论上很难进行精确的建模计算时，结 Reliable and trouble-free long-term work of mining machinery products depends largely on its dynamic characteristics. Therefore, it is necessary to study the dynamic characteristics of mining machinery for the rational design of its structure. Study of mechanical characteristics of dynamic mechanical modeling and experimental analysis. In recent years, the application of experimental methods is more and more widely, especially in the case of large-scale complex structures, it is theoretically difficult to accurately model and calculate