1.前言 20多年来,结构动力学经历了深刻的变化,动态子结构方法的发展即其重要标志之一。 工程技术和结构工艺的不断推进,经常要求准确而迅捷地分析整体结构系统的动态性能;数字计算机的发展及有限元素法的兴起,为完善这种分析,提供了强有力的手段,但是,大型复杂结构的精细有限元分析,通常导致成百上千自由度的离散化模型,直接(完全) 1. Introduction For more than 20 years, structural dynamics have undergone profound changes. The development of dynamic substructure methods is one of its important hallmarks. The continuous advancement of engineering technology and structural processes often requires accurate and rapid analysis of the dynamic performance of the entire structural system; the development of digital computers and the rise of the finite element method provide powerful means to improve this analysis, but large-scale Complex finite element analysis of complex structures usually leads to discretized models of hundreds of degrees of freedom, directly (completely)