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城际动车组气动设计方法的研究 被引量:4

Research of Aerodynamic Design Method for the Intercity EMUs
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摘要 针对城际动车组运行速度及运营环境,从舒适性和经济性2个方面提出城际动车组气动设计面临的主要挑战。根据高速列车气动设计经验,从头型外形气动优化设计和车体表面平顺化2个方面开展气动设计,形成4个速度等级的城际动车组头型,并基于数值模拟、风洞试验及线路试验进行设计验证。研究表明,仿真结果与试验结果误差较小,满足工程计算精度要求。风洞试验表明3辆编组的城际动车组气动阻力较原始设计方案减小了约13.2%,远场气动噪声满足设计要求。线路试验表明,城际动车组的气动阻力达到CRH2水平,隧道通过及交会压力波幅值均小于±4 k Pa,各项气动设计指标均达到预期要求。 According to the running speed and operating environment of the intercity EMUs,the major challenges for the aerodynamic design of the intercity EMUs were presented from the comfort and economy.Based on the aerodynamic design experience of the high-speed train,the aerodynamic design of the intercity EMUs was carried out by the aerodynamic optimization design of the head shape and the smoothing of the train surface.Intercity EMUs heads corresponding to four speed grades were obtained,and the validation of the aerodynamic design was conducted by the numerical simulation,wind tunnel test and line test.The research showed that the error between the simulation result and the experimental result was small,which could meet the accuracy requirement of engineering computation.The wind tunnel test showed that the aerodynamic drag for three cars of the intercity EMUs was reduced by about 13.2% than that of the original design.The far-field aerodynamic noise could meet the design requirements.The line test showed that the aerodynamic drag of the intercity EMUs could reach the level of CRH2,the pressure amplitude for the train passing through the tunnel and two trains passing by in the tunnel was less than ±4 k Pa.All aerodynamic design targets met the expected requirements.
作者 丁叁叁 杜健 刘加利 尚克明 李中浩 DING Sansan, DU Jian, LIU Jiali, SHANG Keming (CSR Qingdao Sifang Locomotive & Rolling Stock Co., Ltd., Qingdao, Shandong 266111, China)
出处 《机车电传动》 北大核心 2015年第1期4-9,28共7页 Electric Drive For Locomotive
关键词 城际动车组 气动设计 数值模拟 风洞试验 线路试验 intercity EMUs aerodynamic design numerical simulation wind tunnel test line test
作者简介 丁叁叁(1967-),男,高级工程师(教授级),从事高速动车组、城际动车组、机车等整车及车体的研发工作及高速动车组车体结构、材料和空气动力学研究.
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