摘要
地铁列车运行过程中产生的振动会给沿线的建筑和居民带来很大的破坏和困扰。地铁减振控制的对象,主要集中在振源和振动的初始传递对象轨道结构上,从根源入手,降低振源的振动强度,阻碍振动向地基和周围建筑物传递。各种减振器、隔振器以及减振轨道结构,已在地铁减振中得到广泛应用,但减振降噪效果仍达不到预期要求。黏弹性阻尼材料具有优异的阻尼性能,并且在减振钢轨和低噪声车轮上得到了应用,其在地铁道床中的应用,明显提高了道床结构的减振效果,为地铁减振降噪技术提供了新思路。
The subway＇s vibrations on operation bring great destruction and obsession to the buildings and residents along the lines. The control objects of subway reducing vibration are mainly concentrated in the vibration source and track structure of the vibration initial transfer object. From the root of the vibration, the vibration intensity of vibration sources is reduced; the vibration transmission to the foundation and surrounding buildings is hindered. All kinds of shock absorber, vibration isolators and vibration reduction track structure, have set up a wide application in the subway vibration reduction, but the vibration and noise reduction effect is less than expected. Viscoelastic damping materials have excellent damping performance, and have been applied in the steel rail and wheels. Its application in the subway track bed obviously improves vibration damping effect of track bed, and provides new ideas to the subway vibration and noise reduction technology.
出处
《上海涂料》
CAS
2012年第9期30-33,共4页
Shanghai Coatings
关键词
地铁减振降噪
轨道结构
黏弹阻尼材料
道床
subway vibration and noise reduction
track structure
viscoelastic damping material
track bed
作者简介
姜琳琳，女，研究生，主要研究方向：功能高分子材料。
