针对“产品-包装-车辆”装配系统中的包装耦合体，基于系统与部件水平的实测频率响应函数（FRF），计算了装配耦合动刚度，包括直接逆子结构法和间接逆子结构法。设计了一套实验模型并测量、计算和分析了其系统装配耦合动刚度，实验验证了这2种方法在实际包装耦合体的设计及其缓冲防震性能分析上应用的有效性。

Indirect and direct inverse sub-structure dynamic analysis were applied to calculate the coupling dynamic stiffness of a specific assembly of product-packaging-vehicle system on the basis of measured frequency response functions (FRFs) at system and component level respectively. A set of experimental model was designed and constructed, and a number of tests, computations and analysis were implemented to verify the effectiveness of engineering applications of the two methods for anti-shock design of a practical product-packaging-vehicle system.