钢轨阻尼器控制钢轨波磨噪声的应用

随着近年来城市轨道交通的快速发展,钢轨波磨问题以及因其产生的振动噪声问题越来越受到人们的关注,它直接影响乘客的舒适度。青岛科而泰环境控制技术有限公司研发的一种钢轨阻尼器能够显著增加钢轨阻尼,有效控制钢轨波磨振动与辐射噪声。应用该技术对北京地铁某线路的钢轨波磨振动噪声进行治理,取得良好的减振降噪效果,钢轨垂向振动降低12.0 d B,钢轨横向振动降低6.0 d B,隧道内噪声降低7.7 d BA,车厢噪声降低7.6 d BA。

Application of Rail Dampers to Rail Corrugation Noise Control

with the rapid development of urban metro transit in recent years, more attention are paid to the rail corrugation problem, of which noise directly influence the comfort of passenger. Create Co., Ltd developed the wide-band rail damper, which can notably increase the damping of the rail, and be used to effectively reduce the vibration and radiated noise of rail. The application of this product is conducted to control the noise of rail corrugation of one Beijing city metro line, good effect on the reduction of the rail vibration and noise was achieved, the rail vertical vibration was reduced 12.0dB, the transverse vibration was reduced 6.0dB, the tunnel noise was reduced 7.7dBA, the carriage noise was reduced 7.7dBA.