铁路近轨声屏障降噪效果预测关键技术研究  

Research on Key Technologies of Noise Reduction Effect Prediction of Railway Near-Track Sound Barriers

作　　者：宋环环 程锦辉 SONG Huanhuan;CHENG Jinhui(Wuhan Huazhong University of Science and Technology Testing Technology Co.,Ltd.,Wuhan 430200,China)

机构地区：[1]武汉华中科大检测科技有限公司,湖北武汉430200

出　　处：《电声技术》2024年第12期37-40,共4页Audio Engineering

摘　　要：研究铁路近轨环境中声屏障降噪效果的预测方法。通过声线追踪、插入损失计算、多路径声波叠加修正技术,综合分析声屏障的降噪性能。实地测试结果表明,不同类型声屏障在不同高度和频段的降噪效果存在差异,吸收型声屏障表现出更优的降噪效果。The prediction method of noise reduction effect of sound barrier in railway near-track environment is studied.Through ray tracing,insertion loss calculation and multipath sound wave superposition correction technology,the noise reduction performance of sound barrier is comprehensively analyzed.The field test results show that different types of sound barriers have different noise reduction effects at different heights and frequency bands,and the absorption sound barrier shows better noise reduction effect.

关 键 词：铁路噪声 声屏障 声线追踪 

分 类 号：TL375.2[核科学技术—核技术及应用]