中国铁道科学2012，Vol.33Issue(1)：98-102,5.DOI:10.3969/j.issn.1001-4632.2012.01.15
地铁车轮降噪研究
Research on Metro Wheel Noise Reduction
摘要
Abstract
With wheel-rail noise prediction model and TWINS software, the influences of wheel diameter and braking modes of three typical wheel structures on wheel noise were analyzed. Various wheel damping measures and wheel design principles based on noise reduction were adopted to optimize wheel structure and reduce wheel noise. The results show that decreasing wheel diameter will increase the sound power level of wheel noise about 1. 5 to 2 dB. The sound power level of disc braking wheel is lower about 7. 3 dB than that of tread braking wheel. Sandwich wheel dampers and double-ring dampers can reduce 7. 8 and 4. 6 dB sound power level of SHL10 wheel respectively. All types of dampers have similar effects on noise reduction of NJL2 wheel and SHL10 wheel. Single-ring damper (welded joint) structure can reduce 1. 8 dB sound power level of SHL10 wheel noise. Double-ring dampers are more effective on noise reduction to SHDB wheel. After using the optimized wheel structure, the sound power level of SHL10O wheel is 2. 3 dB lower than that of SHL10 wheel, whereas the sound power level of NJL2O wheel is 1. 6 dB lower than that of NJL2 wheel.关键词
地铁车辆/车轮结构优化/滚动噪声/阻尼降噪Key words
Metro vehicle/ Optimization of wheel structure/ Rolling noise/ Noise reduction using damper分类
交通工程引用本文复制引用
楚永萍,唐永明,周劲松..地铁车轮降噪研究[J].中国铁道科学,2012,33(1):98-102,5.基金项目
中国南车南京浦镇车辆有限公司技术中心转向架科研项目(T25054120121) （T25054120121）
