将产品-包装-运载体系统作为整体考虑,建立了二级多点动态逆子结构理论与模型。 推导了用系统水平FRF 来预测部件水平 FRF 的表达式。 用弹簧-质量块组成的实际模型进行了实验验证。 实验结果验证了用系统水平 FRF 预测部件水平 FRF 的可行性与准确性。

Two levels multipoint dynamic inverse substructure theory and model was established by considering product-packaging-carrier as an integral. The system level FRFs were used to predict the component level FRFs, and corresponding formula was deduced. In order to validate the theory, a physical model was constructed and the experiment was conducted. The experimental result showed that using system level FRFs predict component level FRFs is feasible and correct.