为了有效地进行机械结构动态特性设计,需要建立一个能反映该机械结构动态特性的动力学模型。在用实验模态数据修正分析动力学模型方面,国内外已取得了许多成果,也存在着一些问题。针对这些问题,作者提出了一种动力学模型的修正方法,不需要选择基准,能比较合理地使用实验数据,保持原动力学模型带状、稀疏的特征,可用于修正有阻尼结构的动力学模型。 In order to effectively design the dynamic characteristics of mechanical structure, it is necessary to establish a dynamic model that reflects the dynamic characteristics of the mechanical structure. At the same time, many achievements have been made both at home and abroad in the analysis of dynamic model with experimental modal data, and there are also some problems. In order to solve these problems, the author proposed a method to correct the dynamic model without any choice of datum, which can use the experimental data reasonably and maintain the ribbon shape and sparse features of the original dynamic model. It can be used to modify the dynamic model of the damped structure .