中文摘要：

为准确评估弹性复杂隔振基础条件下振动内燃机的功率流传递水平，采用Mindlin板替代传统的Kirchihoff薄板，建立了一种涵盖多种隔振基础形式的普适模型。运用子结构技术和变分理论，推导了隔振系统的控制方程以及传递到较厚甚至不同配置方式的各向异性复杂梁式基础的功率流。与基于各向同性薄板基础的传统模型相比较，研究了普适隔振系统功率流的传递特性。仿真研究表明，所提模型是有效的，可得到比传统模型更加准确的结果。

英文摘要：

To estimate the power flow transmission from the vibrating internal combustion engines to the complex elastic foundation accurately, a general analytical model is presented by extending the classical one. In the proposed model, the Mindlin plate, instead of the classical thin plate based on Kirchihoff＇s hypothesis, is used to model the elastic isolation foundations. Substructure technique and variational principle are employed to derive the governing equation and solve the power flow transmitted into the thick or orthotropic beam foundations with different configurations. Comparative study on the transmission characteristics of the power flow of the general isolation systems with the classical cases is conducted. Numerical simulation shows that the presented model is valid and it can obtain more accurate power flow solutions than the classical one.