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依据混合方法的基本原理,将计算模型划分为统计子系统和确定子系统,并给出混合方法的系统方程.应用能量平衡原理及互易原理,求解系统方程的能量,进而获得混合计算模型的响应预报.与统计能量法相比,该计算模型具有相对较少的自由度、较高的计算效率和精度.数值计算和模型试验结果表明:阻振质量基座对双层圆柱壳结构具有明显的隔振特性,采用含阻振质量的基座结构能有效阻隔结构中振动波的传递.
According to the basic principle of the hybrid method, the computational model is divided into statistical subsystem and deterministic subsystem, and the system equations of the hybrid method are given.Using energy balance principle and reciprocity principle, the energy of the system equation is solved, and then the hybrid computing model Response prediction.Compared with the statistical energy method, this calculation model has relatively less degrees of freedom, higher computational efficiency and accuracy.The results of numerical calculation and model tests show that the mass base has the obvious Vibration isolation characteristics, the use of base structure with a damping mass can effectively block the vibration wave transmission structure.