本文介绍以地基运动为振源的强迫振动,并建立适合于各向异性阻尼系数(C_XC_YC_Z)的弹性支承刚体的运动微分方程,经过详细推导,求得了便于工程中应用的有阻尼多自由度系统对地基激励的响应计算公式,并引进无量纲参数,作出幅频响应曲线,最后对消极隔振装置的设计和计算作出一般的介绍,并和“动力机器基础设计规范”公式的振型分介法进行比较。 In this paper, the forced vibration of ground motion is taken as the vibration source, and the motion differential equation of the elastic support rigid body which is suitable for the anisotropic damping coefficient (C_XC_YC_Z) is established. After detailed derivation, the damped multi-freedom system The response formula of foundation excitation is introduced and dimensionless frequency response is introduced. Finally, the design and calculation of passive vibration isolation device are introduced generally. And the vibration mode of the formula of “Basic Design Specification of Power Machinery” Method to compare.