Rail transit vibration and noise reduction method based on modular steel rail particle damper

Abstract

The invention discloses a rail transit vibration and noise reduction method based on a modular steel rail particle damper, and the method comprises the steps: determining a target vibration reduction module corresponding to a vibration frequency component according to the vibration frequency component of a rail, wherein the number of the target vibration reduction modules is multiple; connecting the target vibration reduction module by adopting a connecting piece so as to form a particle damper; and installing the particle damper is at the rail waist position of the rail so as to conduct vibration and noise reduction on the rail. The target vibration reduction modules are connected through the connecting pieces to form the particle damper, a wide vibration reduction frequency range can be formed by adopting the different target vibration reduction modules, and therefore the particle damper is suitable for reducing broadband vibration and noise generated in the steel rail operation environment. 本发明公开了一种基于模块化钢轨颗粒阻尼器的轨道交通减振降噪方法，所述减振降噪方法包括：根据轨道的振动频率成分，确定所述振动频率成分对应的目标减振模块；其中，所述目标减振模块有若干个；采用连接件连接所述目标减振模块，以形成颗粒阻尼器；将所述颗粒阻尼器安装在所述轨道的轨腰位置，以对所述轨道进行减振降噪。通过连接件连接各目标减振模块，形成颗粒阻尼器，采用不同的目标减振模块可以形成较宽的减振频率范围，从而适用于降低钢轨运行环境中产生的宽带振动及噪声。