由于复杂工程结构的有限元模型中不确定参数较多,不确定参数的变化范围较大,对其修正时目标参数难以收敛,针对此问题提出引入模型确认技术中的分层思想,建立了分层模型修正技术的数学模型,把复杂工程结构按连接特性分解为若干个子结构,再把子结构分成若干个零件,分别对零件、子结构进行修正，最后不需要对整体结构进行修正而生成工程中可接受的有限元模型，以模型确认技术领域内的benchmark模型为例进行分层修正，研究结果表明了基于分层思想的有限元模型修正结果精度较高，具有较大的工程应用价值。

because of the complicated engineering structures using finite element models are more uncertain parameters and uncertain parameters varied greatly, its slow convergence when the target parameters are updated. for this issue, introducing the hierarchical model of thinking, the complex characteristics of engineering structures by connecting decomposed into several sub-structure, then the sturcture is divided into several sub-parts, respectively, parts, sub-structure of the updating;. finally do not neet to modify the overall structure of an acceptable project generated finite element model, through the model validation techniques in the field of stratified amendment benchmark. the results show that thinking based on hierarchical finite element model updating method has high precision, with great engineering value.