中文摘要：

将键合图用于动态子结构分析和研究,提出了一种新的求解自由界面模态综合法的基本原理,推导出两个子结构自由界面模态综合法的计算方法,获得其相应的特征谱矩阵和振型矩阵。文中给出的算例表明,基于键合图方法的自由界面模态综合法方便有效,结果准确,并确保了整体结构分割前后的键合图模型统一。

英文摘要：

Bond graph was introduced into the analysis and study of a dynamic minor structure, and the cardinal principles of new free boundary mode synthesis was put worward. The calculation method for the free boundary mode synthesis of two minor structures was developed and their corresponding characteristic spectral matrix and vibration mode matrix were obtained. An example given in the paper shows that free boundary mode synthesis using bond graph is very convenient and effective. The results are accurate and reliable; the natural frequency of the whole structure before it was divided into minor structures is the same as that after the minor structures were integrated.