采用子结构法,建立了有限周期复合结构的数学模型,求出了数学模型的波动解,并推导出模型的时间平均功率流。在理论推导的基础上对该模型进行了数值仿真,得出其时间平均功率流曲线,初步分析了该结构的隔振性能。
The substructure method was introduced to set up mathematical model of finite periodic composite structure, to solve its wave equation, and to derive its time--average power flows. On the basis of the theoretical derivation, numerical simulation was carried out by the method, the power flows of the model are obtained, and the performance of vibration isolation of the structure was studied.