空间开发及探测活动使航天器及其所携带的精密设备置于非常复杂的力学环境之下 ,为此 ,隔振技术在航天技术领域得到了广泛的应用。本文针对航天器上典型隔振问题 ,建立了隔振系统振动功率流响应特性分析模型 ;并以减振器安装界面的振动功率流为综合控制量 ,以减振器的特征参数为优化变量 ,分别建立了单目标和多目标加权的优化模型 ;最后 ,以一多自由度集中参数模型为例 ,研究了该隔振系统振动功率流响应特性及减振器参数的优化问题 ,计算结果不仅验证了模型推导的正确性 ,并且表明 ,功率流分析方法能够独到地预示隔振系统振动能量的分布特性 ,基于振动功率流的减振器动力特性的参数优化设计可以有效地改善隔振效果 ,具有一定的工程意义 Space exploration and exploration activities make the spacecraft and the precision equipment it carries under a very complex mechanical environment. Therefore, vibration isolation technology has been widely applied in space technology. In order to solve the typical vibration isolation problem of spacecraft, a vibration power flow response characteristic analysis model of vibration isolation system is established. Taking the vibration power flow at the vibration absorber installation interface as the integrated control variable and the characteristic parameters of shock absorber as the optimization variables, Finally, taking a multi-degree-of-freedom lumped parameter model as an example, the vibration power flow response characteristics of the vibration isolation system and the optimization of the shock absorber parameters are studied. The calculation results not only verify The correctness of the model is derived and it is shown that the power flow analysis method can uniquely predict the vibration energy distribution characteristics of the vibration isolation system. The parameter optimization design of the dynamic characteristics of the vibration absorber based on the vibration power flow can effectively improve the vibration isolation effect. Certain engineering significance