针对振动隔离中基础的非刚性问题，通过理论推导和数值计算，得到有关柔性板基础上多点支承隔振系统的功率流传特性的若干重要结论，并以传递到基础的功率流频率平均响应为目标函数，以隔振器的刚度、阻尼以及机器的质量为约束条件进行了优化．提出了控制系统振动和结构噪声传播的有效途径． Aiming at the non-rigidity problem of vibration isolation, some important conclusions about the power transfer characteristics of multi-point supported vibration isolation system based on flexible plate are obtained by theoretical derivation and numerical calculation. The average frequency response of power flow transmitted to the foundation is The objective function is optimized with the stiffness of the isolator, the damping and the mass of the machine as constraints. An effective way to control system vibration and structural noise propagation is proposed.