本文分析了穿膛式液流脉动消振器的消振机理,建立了运动方程,提出了有效脉动管长的概念及计算公式,导出了固有频率表示式,为消振器的设计找到了依据.计算值与实测值对比,表明该分析方法是符合实际的,生产上试用后表明,穿膛式液流脉动消振器是一种效果优良的消振装置. In this paper, we analyzed the damping mechanism of the weaved flow pulsation damper and established the equation of motion. We put forward the concept and calculation formula of the effective pulsation tube length, derive the expression of the natural frequency and find the basis for the design of the absorber The calculated value is in good agreement with the measured value, which shows that the analytical method is in line with the actual situation. After the trial on production, it shows that the pulsating vibration damper with weaving flow is an effective vibration absorber.