摘要
铁路货物运输枢纽的调车场中,驼峰调车是主要的调车手段。为提高生产效率和确保安全,沿驼峰下滑道布置的减速器(减速闸、减速顶)的噪声是调车场噪声的主要声源之一。本文通过对昆明东站铁路降噪工程的观测试验项目,探讨了减速顶噪声的特性及治理措施。
As a major part in railroad freight transmit in railroad classification yard. The 'hump' and switches to classification tracks are major system in freightcar calssification. It is a kind of major noise source when freight cars go down through the mechanical car retarders, which are mounted on the 'hump' grade tracks to prevent the cars rolling too fast in railroad freightcar classification yard. This article illustrate the acoustic character of this noise source, according to the observation and test contract in the noise reduction project in KUMING railroad eastern station. Some possible approaches to noise reduction are given.
出处
《噪声与振动控制》
CSCD
2002年第6期27-30,共4页
Noise and Vibration Control
