CAJ | 학술논문

高速列车在大气中行驶的最高经济速度很难超过400 km／h，真空管道运输将是陆上超高速的理想交通工具之一。以高速列车组为研究对象，基于Pro／E建立系统（ETT）的参数化模型。分析列车实际运行的边界条件，在FLUENT软件中，基于k－ε双方程湍流模型对系统的外流场、气动阻力场、速度场等耦合条件下进行数值模拟计算，研究管道压力、行驶速度、车头外形以及阻塞比等参数对其空气阻力、气动升力的影响规律。利用模糊多准则的评价模型对系统主要参数进行优化设计，为真空管道运输的可行性设计提供参考。
고속열차재대기중행사적최고경제속도흔난초과400 km／h，진공관도운수장시륙상초고속적이상교통공구지일。이고속열차조위연구대상，기우Pro／E건립계통（ETT）적삼수화모형。분석열차실제운행적변계조건，재FLUENT연건중，기우k－ε쌍방정단류모형대계통적외류장、기동조력장、속도장등우합조건하진행수치모의계산，연구관도압력、행사속도、차두외형이급조새비등삼수대기공기조력、기동승력적영향규률。이용모호다준칙적평개모형대계통주요삼수진행우화설계，위진공관도운수적가행성설계제공삼고。
It is hard to exceed 400 km/h that the maximum economic speed of high-speed trains running on the atmosphere,so the Evacuated Tube Transportation (ETT)will be one of the ideal much faster vehicle on land. By taking high speed train set as a re-search object,based on Pro/E,the parameterized model of ETT system was established. Analyzing the train boundary condition in ac-tual operation,in FLUENT software,based on the k-εdouble equations turbulence model,the numerical simulation and computation were done under coupling condition which involved many fields such as the outer flow field,the aerodynamic drag field and velocity field. Furthermore,the rules of many parameters affected air-resistance and aero-lift were researched such as the atmospheric pressure in evacuated tube,travel speed,the locomotive’s geometry and train-tube dimension ratio. By using of fuzzy multi-criteria evaluation model,the main parameters of system are optimized in design,which provide the reference for the feasibility design of ETT.