Investigation of Pantograph Effect on High-speed Train Noise
Using microphone and removable planar microphone array,the exterior and interior vehicle noise near pantograph were investigated when the train ran at 250-350krn/h,the noise spectrum characters of these areas were obtained.The results show that at the pantograph seat and in the vehicle below pantograph,the noise spectrum show a broad band distribution,and the noise energy is mainly concentrated within the range of 100Hz-2kHz.Interior vehicle noise below pantograph is a non-uniform reverberant sound field,the regions with larger sound pressure level (SPL) are distributed near the roof,the floor,the side wall below the luggage.For reducing interior vehicle noise below pantograph,noise reduction measures should be effective at 100Hz-2kHz.
pantograph planar microphone array exterior noise interior noise
Xiaofeng Zhang Yougang Xiao Helian Deng Jianfeng Huang
Changsha Environmental Protection Vocational Technical College,Changsha,410004,China School of Traffic & Transportation Engineering,Central South University,Changsha 410075,China Loudi Vocational Technical College,Hunan Loudi 41700,China
国际会议
重庆
英文
239-242
2012-11-10（万方平台首次上网日期，不代表论文的发表时间）