本文给出了振动辊的力学模型并利用有限元理论建立了振动辊的动力学方程，求解其各阶固有频率及在激振力作用下垂向振动振幅。本文叙述的方法可为设计提供依据，以避免振动辊发生共振造成弹性支承的损坏，可使激振块的布置尽量合理以达到振动辊各处振幅接近一致。 In this paper, the mechanical model of the vibrating roller is given and the dynamic equation of the vibrating roller is established by using finite element theory. The natural frequency of each step and the vertical vibration amplitude under the action of exciting force are obtained. The method described in this article can provide the basis for the design to avoid damage to the elastic support caused by the resonance of the vibration roller and make the arrangement of the vibration excitation block as reasonable as possible so that the amplitudes of the vibration roller are nearly the same.