摘要
根据声学相似理论,研究声屏障原型与其缩尺模型降噪特性试验的方法。对比分析了声屏障原型降噪效果和半消声室内缩尺模型降噪效果,为通过缩尺模型降噪特性试验预测声屏障原型降噪性能提供依据。
Based on accoustic similiary theory,the test method of noise reduction characteristics of prototype noise barrier and its scale model was discussed.The comparative analysis of noise reduction effects of prototype noise barrier and its scale model in semi-anechoic room was made,in order to provide a basis for predicting the noise reduction characteristics of prototype noise barrier by testing the scale model's noise reduction performance.
出处
《内燃机车》
2011年第1期18-20,55,共3页
Diesel Locomotives
基金
亚热带建筑科学国家重点试验室开放基金项目(2009KA02)
关键词
降噪
声屏障
缩尺模型
半消声室
noise reduction
noise barrier
scale model
semi-anechoic room
