摘要
通过对昆明东站铁路降噪工程的观测和试验,探讨了减速顶噪声的特性.减速顶噪声主要来源于轮对的垂向激励/垂向响应、垂向激励/横向响应.减速顶的噪声是一种持续时间、多个脉心中、离散频率的噪声.
To study the characters of noises from railway marshalling yards, noises are recorded in Kunming Eastern Railway Station. The noises created by mechanical car retarders are the major noise resources in railway marshalling yards, and are the results of vertical and horizontal responses to vertical excitation. The noises from mechanical car retarders in railway marshalling yards are continuous and of multipeak pulses and scattering spectrum.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2003年第2期142-145,共4页
Journal of Southwest Jiaotong University
