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作 者:孙耿杰 刘磊 白鑫 白夜 程爱君 高攀 王立乾 李元平 SUN Gengjie;LIU Lei;BAI Xin;BAI Ye;CHENG Aijun;GAO Pan;WANG Liqian;LI Yuanping(Railway Science&Technology Research&Development Center,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)
机构地区:[1]中国铁道科学研究院集团有限公司铁道科学技术研究发展中心,北京100081 [2]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081 [3]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081
出 处:《中国铁路》2024年第10期163-171,共9页China Railway
基 金:中国国家铁路集团有限公司科技研究开发计划项目(K2023G025);中国铁道科学研究院集团有限公司科研开发基金项目(2022YJ254)。
摘 要:为综合评价贵广铁路提速隧道空气动力学影响,中国国家铁路集团有限公司组织开展贵广铁路提速隧道空气动力学效应科学研究试验。阐述隧道气动效应试验、车内空气压力舒适度试验、车体及设备舱气动载荷试验、车内噪声试验等4项内容的设计方案和试验结果。试验结果表明,在贵广铁路隧道内以不超过300 km/h速度运行时,CR400AF、CRH380A、CRH2A车内空气压力变化、车体及设备舱气动载荷、隧道内附属设施气动压力满足标准要求;CRH1A车内空气压力变化最大值超过标准;通过全线排查目前共发现6座隧道存在音爆。建议根据贵广铁路隧道分布情况及运营需求制定相关措施。通过本次试验,首次全面获取了动车组在92 m2断面隧道内以300 km/h运行条件下的空气动力学效应数据和规律,为贵广铁路提速300 km/h运营提供了重要支撑。In order to evaluate the tunnel aerodynamic influence of Guiyang-Guangzhou Railway speed upgrade,China State Railway Group Co.,Ltd.has organized a scientific research test on tunnel aerodynamic effects for the Guiyang-Guangzhou Railway speed upgrade.This paper elaborates on the design schemes and test results from 4 aspects:tunnel aerodynamic effect test,interior air pressure comfort test,carbody and equipment compartment aerodynamic load test,and interior noise test.Here are the test results.When the train operated at a speed not exceeding 300 km/h in the tunnels of Guiyang-Guangzhou Railway,the change in interior air pressure,the aerodynamic load of carbody and equipment compartment,and the aerodynamic pressure of ancillary facilities in the tunnels of CR400AF,CRH380A,and CRH2A met the standard requirements.However,the maximum change in interior air pressure for CRH1A exceeded the standard.Through a comprehensive investigation along the whole line,a total of 6 tunnels had been identified to have sonic boom issues.It is suggested to formulate relevant measures according to the tunnel distribution and operation requirements of Guiyang-Guangzhou Railway.Through this test,the aerodynamic effect data and laws of EMUs operating at 300 km/h in a 92 m^(2) cross-section tunnel have been comprehensively obtained for the first time,providing important support for the speed-up operation at 300 km/h of Guiyang-Guangzhou Railway.
关 键 词:贵广铁路 提速 隧道气动效应 车内空气压力 气动载荷 车内噪声
分 类 号:U238[交通运输工程—道路与铁道工程]
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